Name: Avior®-2 Desktop Dose Rate And Survey Meter Capabilities
Start: 2023-04-19T11:00:00.000-07:00
End: 2023-04-19T11:57:00.000-07:00

Hello everyone, I am Hope and will be helping moderate today's webinar. I would like to welcome everyone to the Avior-2 Desktop Dose Rate and Survey Meter Capabilities webinar. Before we get started today, I'd like to go over some housekeeping. At the top left of your screen is the Q&A chat box. Please ask questions throughout the presentation and we will answer as many as possible within our time constraints. Below that is a resource list with more documentation on what we will discuss today. For your best viewing, All of your windows are adjustable, so feel free to move them around as needed. And if for some reason you are having trouble viewing this webinar at any point, please refresh your browser. This webinar will be recorded and available at mirion.com/webinars for you to view again or share with any colleagues that missed it. Here you can also see all of our past webinars. This link is also in our resource section. Today's webinar will be presented by NASA Rashida Fad. Nassar has over 20 years of reactor operation and applied health physics experience, specializing in decommissioning, licensing, MCNP, gamma and neutron spectroscopy and instrumentation. I will now hand the presentation over to Nassar. Thank you, hope and welcome everybody at the webinar. My name is Nassar and also Frederick Meyers is on here. He's a part of my manager for this, so he can help answer questions at the end. So first let's talk about the EVR system and an extension, the CSP family. So right now this is an ecosystem we've been working on for several years that allows smart probes to be paired to a variety of instrumentation solutions, particularly the more current ones with the R DS32 and the E VR2 systems, but also is backward compatible with legacy systems. There is additional Ethernet connectivity and USB connectivity for PC that allow these probes to really. Be extremely versatile. You can swap them dynamically, you can mix and match to meet your needs. So you can have 1 meter and really drive a lot of different solutions with that. So the A VR2 itself is part of the CSP family, it features 2 ports and allows connecting of all the CSP probes and it's the perfect solution for nuclear power, universities, radio, pharmaceuticals, laboratories and production facilities. And pretty much anywhere you need dose rate, count rate or scalar functionality. It's all built into the Avior two system. And a lot of couple of the applications that we can use for this is either a frisking station where they use a GM probe or an alpha beta simulator or a simulator. Sorry might I probe for waste or shipping purposes or just check it for contamination on objects you can operate as a hand monitor in one or dual hand modes. Foot monitor or a combo handed foot monitor and there's well slides on that. Later in the webinar you can use it as a counting station and also for ambient monitoring. And some of these solutions can be done simultaneously. You can use a counting station with an ambient monitor or a frisking station with a counting station in one unit because there is a dual input. And one of the kind of advantages of this system is also you can tune it to your experience. You can customize a lot of things on this system. They're three different user profiles and you can lock them with specific capabilities on each mode. So the two the dual CSP input will simultaneously display both probes with up to four readouts, and particularly for alpha and beta. For gamma or single channel probes you'll have one on each side, but with the alpha beta probes you will have dual channel simultaneously displayed. There are two alarm set points for each channel, so for a total of eight alarms, low and high alarm for the alpha and channel one and Channel 2. On each input. And in order to help differentiate some of this, there are two different frequencies for the alpha and beta. The alpha has a high pitched chirp and the beta has a lower pitched chirp, and this is to help identify if you have mixed fields audibly versus traditional instrumentation which may or may not have a readily discernible tone. The system itself is portable. It has a battery life up to 70 hours with the internal battery, and you can also plug it in and use it as an installed type system. And the charge is built in, so you don't need any extra power bricks, you can just plug it into a standard A/C line. There is an optional I/O version we'll talk about in the later slide that has a RS45 with MOD bus capabilities to allow you to integrate that into any of your systems or operations. And the unit itself weighs less than a kilogram. So kind of talk a little bit now about the profiles. You have an operator and this may be for a person who has a technician or an operational or production function that maybe not be very health physics oriented. They're very limited in doing their functionality. You can step up to a technician level and someone who has. Decent experience in health physics and able to differentiate different samples and different radiations. More of a supervisory role. And then there's an administrator role which has full access for everything, Allows you to do all the full functionality, calibrations, configurations, passwords. And that's usually reserved for kind of the manager type role or calibration type role for this. And one advantage of this is you can. Set all the alarm levels, all the upper ability stuff and the profiles and build that as an engineering control into to help support your site procedures. So with the multiple inputs it not only adapts to the probe of the status of the probe and you can take some of these probes like the alpha beta probes and you can switch between the channels you can have. And Alpha and beta simultaneously. Alpha only or beta only. And as you toggle through those put press buttons on the meter itself. It will automatically update the screen and show the active channel it's you're viewing. And it'll show it on a larger display with bar graphs. Each channel can have multiple alarms for the have two alarms for each channel as you see on the right and these can be set to Becker out per square centimeter or dose rate or. Activity or micro periods per DPM per 100 square centimeters and there's several options inside the unit and it saves that to the probes so when you plug it in next time you don't have to redo all that. And this can be done without any restarting of the device. It is a true smart probe system. Other systems in the past have you had to shut down the system because the calibration data will be stored in the probe. But the high voltage will be supplied by the meter, and in this case, everything's done to the meter and you're establishing a power and data connection from the Avior to the CSP probe. Next we'll have a video that'll show show me connecting multiple probes to the Avior system and watching them initialize. So right here I have an SA V-100 on the right, which is 100 square centimeter zinc sulfide alpha beta scinilator. And on the left is a S AV-250. It's similar device, just 250 square centimeters. You'll see as soon as it plugs in, it initializes, connects to the device, updates any settings it needs to channel numbers, and you can see me toggle through. I'm going to the alpha channel, the beta channel, then back to simultaneous display. Plug in. The second probe dynamically shifts the window over and will initialize both channels. And this is convenient if you have a complex setup or a unique application. You can have 1B alpha, 1B beta and you can switch them depending on your probe needs. And you see each channel is independently selectable too. So talk a little bit more about the CSP probe selections. It is like I said, it is a true plug and play. You can see a variety of probes that we had for when setting up this webinar. You can have sodium iodide scinilators, zinc sulfide scinilators, GM detectors. I have with me a handheld PIPS frisker probe, You have a beta scinilator and then a neutron probe and plugged into the device is an SVLD, it's a cesium iodide ambient dose rate meter. So all high voltage gain signal processing is done in the probe and this allows you to connect via USB to your PC for either calibration or use of the SDK for integrating of the system such as array monitoring, remote monitoring and this can also be done via Ethernet with the Ethernet communication connector. So all the calibrations and alarm settings are done in the probes. So if you have to send a probe out for calibration, you don't have to send the meter and the probe paired. You can send the probes as you need them and the meters as you need them. So if you do get a light leak on one of the simulator probes, you don't have to send the whole probe out for calibration. You can just have the probe remilard and recalibrate it and all the calibration data is stored in the probe itself and the advantage of any of the of the high voltage being inside the probe. Is that traditional meters as the age? The voltage boards can drift and that can cause issues with varying dose rates. And if you start hot swapping probes you end up with varying backgrounds on probes, so they're not really. Age is a factor in determining if the longevity of that smart probeness. And the other advantage is there's no high voltage going through the cables. I've had experience with freight cables and some of the detectors can have over 1000 volts in them. And that's not a safe situation. So everything is stored internally and the only thing going over the cable is low voltage DC and communications. And here's a breakdown of just some of the more common meters. We use the SA V-100 and 2:50 as we saw on the video and the S AV525 which is used primarily for the hand and foot station and some floor monitoring applications. We got the S A/B G15 Plus, which is a traditional GM pancake probe. We have an easy count system which I'll talk a little bit more about later, and the SP AB15 which is a PIPS based frisker which is the one I have on my desk, SVLD for ambient dose rate. And then you have sodium iodide versions of the SG1R and 2R for one by one and two by two sizes. And then the SX2R which is a thin sodium iodide that's great for low energy photons or any low energy applications. So one of the poll questions we'd like to post to you guys is with the capability to connect kind of legacy pancake GM probes on one of the inputs, make you consider the a VR2 as an upgrade solution in the future. And this would be to identify if you do have a significant inventory of traditional probes that you would still be able to utilize those with the new solution. OK see some results coming in, give it a couple more seconds. And just to clarify, this will be a non smart probe solution it would be. Something along the lines of an adapter solution to a traditional B&C or C type connector. OK, a few more seconds still see some votes coming in. OK, so one of the things I like we'd like to highlight that's unique to the Avior system is the alarm set points, so on the face of the device. If the channel is active, you'll get a green light if it's below the alarm level. If it trips the low alarm level, you'll have an orange LED, and if it goes to the upper level it will have a red LED. So you have a visual indicator on each of the channels and you'll see them like on the left with the four channel alpha beta solution, that everything's nominal, nothing's above any sort of alarm rates. It does have a pretty decent alarm. So it is very audible closer to maybe the 80 decibels. So it is very audible and it does have a visual display window which is a huge advantage and it does presents the the dynamic graphs in the bottom which I know has is kind of a preference from legacy going to digital. And so we offer both solutions and if you look closely up there you'll see you can highlight those. Red so you'll see your alarm set points here for a low and high, and it also provides accounting uncertainty 2 which is similar to doing the square root of accounts. So you kind of have a benchmark of how well your measurement is or how stable or solid that measurement is. And also you can turn it to a simple display where it doesn't have any numerical values as clean. Low contaminated or high contaminated and that could be used for people on a production scale to where they don't need to interpret data. It could be too much and overwhelming to them and it gives you really distinct levels go no go, which I'll talk a little bit more about later. And just to go through the next two videos I have, one would feature counting an alpha source on with just ambient background for the beta channel. And it's an SA B-250, so it's a little elevated and you'll hear you'll be able to distinguish the low pitched or low frequency beta channel counts and the higher frequency alpha counts. And that was pretty. Distinguishable between the different radiation channels. So next we have one use the same alpha source, but with a beta source there to provide an elevated background to show that you can still discern that alpha counts with an elevated beta doesn't get drowned out like some of the traditional meters would that do have a similar feature. See, as someone who used to do a lot of surveying, manual surveying for a decommissioning, that's a very valuable input because sometimes it wouldn't be distinguishable when you have a little bit of alpha, so you would be hard to go back because it would just be drowned out by the beta noise. So kind of the 1st and simplest mode I'd like to talk about is the frisking mode. It's compatible with any of the probes, and you can have it just in count rate, dpm activity per unit area, and you can figure that in the menus I showed you previously and it'll do instantaneous and average count rates. So if you look at the graph on the bottom right here, you'll see a thin bar. And that's the instantaneous bar graph, and that's about every 250 milliseconds it's averaged. And then you have a larger one that's, sorry, backwards. The larger one is the instantaneous, and the thin one is an average over time to provide you with to know how fast you're changing when as you're surveying an object. So one option for this is also. Dynamic background with select probes with sensors is that it can automatically update background or you can set alarm limits to alert you if the background has changed appreciably. I know with MVP applications traditionally it would be something along the lines of 100 correct accounts per minute and as long as the background didn't exceed 300 counts per minute and that was kind of a soft control to where be up to the technician to determine that. In this sort of scenario, you can actually use an engineering control and put that into the alarms and the options so it will either not count or alert them to update backgrounds. And as always, there is an uncertainty that factors in the count rate and obviously the higher the count rate, the lower uncertainty. So you can kind of have a gauge on where you are on your sample versus a background. So in this video you'll see me frisking a bag of trash. At a shipping station I have placed the small ports in the bottom and there's because the CP/M button stores there. You'll see that alarm and that'll give you someone an indication that it has exceeded the threshold value. And this is great for dot survey because you can also do that with those rates and say if you want to bound your shipment to a white one or yellow two measurements, you could put those in. You can get fairly creative with these applications. Another benefit for this is for the person who's kind of not a lower experienced person or not specially trained in health physics. That may be a very production oriented role and having data and having a lot of numbers can complex their decision making process. They may have other values they're worrying about and this just becomes more and it can be overwhelming and they could inhibit productivity throughput. So you can have contaminated clean. You can have it contaminated or clean on both channels for alpha or beta and it'll give them a go no go feature. And this is valuable for just not having to make a science project out of things, particularly in high volume applications. And then if there are alarms, a supervisor can follow up and unlock the device and then look at the actual numbers, because once this mode is enabled you can lock it. And it can only be overridden by a supervisor or administrator level, which is very good for so no one inadvertently changes any values. A unique feature with the SA B-250 and the SA B525 probes is they can detect when and when not you're measuring and this is done by a magnetic pickup switch in the SA B-250 hand monitor and. A light switch in the 525, and what this does is when those sensors are tripped, it knows it's taken a measurement, and then when it's not, it's constantly still recording the data in each channel and logging it as a background measurement. So it knows this is similar to any sort of traditional whole body monitors if anyone has any of the contamination line with the Chronos, Argos or Gem 5 systems. There's a similar feature. It's just a constant rolling background, because background does change if you have multiple people, you put packages in the area or you move the system. It's just constantly updating it to be representative. And you can always ensure that you have a great MDA and you're meeting all of that with changing backgrounds. And this also removes the need for human or people to intervene, update backgrounds or notice it because people get busy. And to give them a tool to kind of take that off their plate is a great feature in my book. This is also beneficial for anywhere that you have radon issues. You may have temperature inversions. I know out West a lot of the radio pharmaceutical facilities out there are subject to pretty significant radon and this constantly updating system will work like a larger whole body system and they can be used for frisking or handed foot monitoring to. Know when you have something above your background level. So next I'll show you the magnetic pickup switch on the SA B-250. So you can see this is set up in the hand and foot monitor mode and there's a small magnet in this bar and then there is a pickup switch inside the handle. And this kind of actually said it requires a physical pressing to separate those to let them know that it is being used. And one of the things we keep think about is extending this into other probe lines. And we'd like to pose this poll for you guys with the ability to trigger continuous background updates be an option that would drive you to consider an Avior two solution. And this may or may not be for hand and foot. This could be for frisking or another solution that you may be thinking about in your head. Give everyone a little bit of time to think about that and answer. Coming in now, so give you give everyone a few minutes or a few seconds, OK, still coming in OK And the next poll I like to pose for everybody is would this feature specifically be advantageous for 100 square centimeter solution? Which would be common to, I know the US market for decommissioning or frisking stations and would that be something that would drive you to consider this as an advantage, Okay, what's coming in now? Okay, A few more seconds Okay. One of the applications we like using the A VR2 for is hand and foot mode and there's a lot of options for this. As you can see up at the top, there's a dual hand mode. This would be excellent for hot sell applications or any. Sample handling that may be in the tray or over a table. That is not a very likely chance for contamination of feet. Maybe there's booties being worn or is a check station after operations before finally exiting in RCA. So we give a lot of options for this. You can have dual hand, single hand or single foot or single hand and single foot, and these can be there on a portable system. Or we can also have these setups of wall mounted so that they can be fixed to a location at an entry or exit point. And we'll use the SA B525 for the foot monitor that has the light sensor for the automatic background updates. And then Trisha will use the SA B-250 because it does have to pick up switch to let them know your initializing account. You can also use it other frisking type probes and set alarm points, but you won't have the capability of the dynamic background updates. The unit itself is pretty portable. It can go inside a single Pelican case and that could be transported to the calibration facility either in house or external or shipped, and it assembles together. It has large wheels as you'll see on the right the newer version of that. That can be used for temporary job sites, excellent for outage locations, or if you have any impromptu work pumps, piping, shielding installations, you can put one of these systems out there and it'll operate well over the day, two days, 3 days of continuous use on the internal battery, so you won't have to worry about bringing power cables. You can use it in step off pad type areas for contamination control or anything that would need some sort of monitoring points and when it is in the hand and foot mode, similar to the go no go mode, it does lock out at the operator level so any sort of changes would have to be initiated by a supervisor and this is very in tune with a lot of NPP procedures where if an alarm goes off in a contamination monitor the alarm gets acknowledged by a supervisor or health physics. Person that can override that so you don't have people adjusting alarms or going through or not knowing what to do next and makes them stop and get some external input. So the one good thing about the dynamic background, because it is always accumulating when you first start up the system, you connect your hand foot, your hand probe and your foot probe. It'll automatically collect backgrounds and then it'll alert you when it is ready. So you do a two step system, you'll do the first one. You'll place your hand and foot on there, actuate the switches. It'll count down for the predetermined time. You'll turn your hand over to do the backside. Or you can switch hands depending on what configuration you have, and then it'll count the other side and then it'll present it clean or dirty. And for one and two would be the difference. Side, so it'll indicate if it's on left foot or right foot, if you know which one you did first or second, and then it'll prompt alarms for contamination or any sort of alert or clean. So it'll prompt all that for you automatically. So right now I'll show a video of me using the hand and foot monitor outside of one of our source labs at the Meriden CT facility. See, step up and you'll see the countdown on there. So it's a very visual device. So you don't you can look right at it. It tells you when it's coming up. You don't have to. And in that case, I actually had a small check source palmed in my hand to initiate that alarm, and that will give you instant read back. You can turn off the audible portion if you don't want that. But sometimes it's nice to have, if it's a busy environment, it calls attention to that. So next I'd like to pose another full question to the audience. So right now our pickup or actuating switches are magnetic pickup base with the exception of the SAB 525 which is the photo sensor and I know we've discussed within COVID and flu and all that. Stuff. Would a non or even contamination? Would a non contact solution be preferable via light beam or proximity sensor? See some books coming in. I appreciate everyone's feedback this. This goes back to our product engineers to help them determine future features or upgrades or existing products. So this is super valuable for us. OK, here is 2 more seconds. Still see some foods coming in. OK Another feature of the having it as a desktop solution is timer scalar mode and this could be done with any of the probes or the easy counts counting station. That's our pips based alpha beta smear counter. So one of the modes you can do is gross measurements. And you either enter the time or uncertainty. So you say you're counting for 30 seconds, 15 seconds. And that could be determined by your procedures. And it doesn't have to be to an MDA, it could be to a counting statistic to say I'm counting to 5% uncertainty. So keep counting and then it'll perform the algorithm in the background and determine when you have 5% of 2 Sigma and we'll determine that that's sufficient counting time and that's great for. Making sure samples are counted long enough. So if you do get samples of increased activity, it won't take as long. So you can process those quickly and get data back into the field. Or if you have low level samples that you may don't have contamination but it's very low in the background, you can count that to you have a significant number so you can get a good value on that lower level. And you can also do it with net measurements. You can have a background subtract. To perform background counts, you can have an SVLD detector in there to alert you when the ambient background level has increased or changed significantly and to prompt you to update your background measurement on your probe. And this is great for moving in a human error or preventing any sort of inadvertent changes, or not meeting the appropriate account time for your procedures. Or sometimes you'll have boundaries on account rates shall not exceed. Certain values in the scalar mode actually has three different modes of acquisitions as the traditional fix time, which you input 10 seconds, 30 seconds, whatever you calculate in terms to be appropriate count to MDA, you can input an MDA value and it'll automatically count for you. It'll use the background that's updated and it will count to an MDA. So if you don't want to use uncertainty, but an MDA, that may be driven by your procedures. You can use this mode and it'll dynamically adjust that count time. You can count to accuracy like I mentioned before and that's really just gross counting statistics. And next I'll show you a video of using the easy count system using an icam filter sample and excuse the hand positioning of trying to get the hand inappropriate line of sight. And I didn't use the handle to actually lift the thing, lift the flap. So just however we're going to see it better. So right now this is the Pips based system. It's set for alpha, beta mode as you can see with the blinking light, and inside there you can actually put regular smears, 47 millimeter smears, or other sizes with adapters. Or there's a special curb cut out that fits the icam filter. So if you are. Icam users, this is included in there and you can easily count your filters either in the field or at the lab without cutting them or punching them. It goes right in there automatically. You'll see it just counted to the fixed time. I'd set for 10 seconds and then it displayed the results. One feature we have in this is the automatic logging of data, and for some features it's available, but not for all of them yet. But we like to pose this poll for you guys. To see if that's with automatic logging of all measurement data, background probe, any sort of scalar type data would be an option the desire and that would be able to be downloaded via CSV or outside of software output. And one advantage of this system is you can connect the thumb drive to it and you can download the data in CSV format onto a thumb drive. So if it is an installed system. You don't have to take the whole thing off the wall and connect it to a PC. You can use a regular flash drive, go over there, collect the data and then post process it. And that's also a feature for updating firmware. Good response, I'll give everyone a little bit more time. All right. Thanks everyone for responding. And we're getting towards the end. And one of the final things I like to talk about is the I/O model. This is an upgraded model and that features additional ports on the side. So you do have the USB port which is standard on all of your systems. You'll get an additional DC in and this can be used for. You don't worry. Don't may not have a C power, you may have a battery pack or you may have a system that has some sort of DC out. Or if you want to put some sort of audible clicks, external speaker annunciator that can be plugged into the headset Jack 2 But kind of. The main thing is the DB25 connector and that can be used with mod bus. So if you have any systems that already use this, this is easy to integrate in there. That uses all the same protocols and they're all documented in the menu. And so with this you get all the functionalities for the four channels you get lawn levels, low, high saturation. You can drive relays open, normally open and normally closed. And this can be used for any existing installed light towers or enunciators that use that sort of connection via relay. It would be a DC relay. And then you can also have a fifth channel for a fault and that will be good for ensuring system integrity, kind of like a watchdog type alarm. On TLC systems you can change the reporting configuration. There's quite a number of options you can use to the way to present data, and that can be streamlined to really match your system and you won't have to do a huge conversion after getting the data in the form you want. Right away saves a significant amount of time and this lets you go into any custom solutions. So if you have accounting system that counts waste, trash, holes, boards, discrete objects, you can use this and integrate it with it. So if you have a prox sensor or a micro switch you can engage some of the accounts and have it do it automatically. And so kind of expanding on this a little bit, we're looking forward to kind of more of an integration approach with the system. So I have a couple final questions. Like to post to the audience. And currently there's no supervisory software for the E VR2, but would that be a desired option either as a standalone direct connected to the system or kind of going to another supervisory system? Would that be something of interest for you guys? Some votes coming in and one thing I'd like to mention that the hand and foot mode with the dual hand probes can go beyond just hands or feet, particularly during COVID. It was a great feature for face scanning and even before you could use. Just kind of you take the probes and you can use your face scanner. So if you don't have, if you have a if you're using respirators or any sort of processes where there is a risk of contamination and facial hair, this is an excellent solution for that. Not maybe either as a standalone or as a follow up to whole body monitor, because then for example the face configuration might be of interest. Say I know everyone's a different shape. Sometimes I know I can't always get to the face detector and that would be something I would enjoy if I had a high risk situation where I could have contamination in my beard and then we'll go on to the next hole. Would there be additional features? And this is a comment box, so feel free to either hang on to the breakout session later or posing the questions or you can put it here, you think about it and then. I think Hope give you some instructions if you think about stuff later and how to provide input for us. And so we feel this is an excellent system. There's a lot of versatility. We put a lot of thought and effort into applications and design. And if there's anything that we missed or you have a question about or I think it would be something that would really benefit you or be of value to you as the end user, feel free to leave that. And we'll leave this up for a minute to give people time to answer. Right now we've got a bunch of questions. I can feel the couple. Let's see. Jim Bench from from Ranel with this there is. No radon discriminator. It's strictly alpha, beta channels and it updates the backgrounds. I know the ice solos, the Argos and some of the other features would store ratios and use those. This one's a strict, just background update so it's not a end all be all the radon, but it is something that can help mitigate some of those. I have another question. Does it separate contamination from alpha and beta? Yes, if you have a S A/B probe with alpha and beta channels built in, it'll separate those. You can view them as we showed on the earlier slides simultaneously, or you can toggle them to be individual. So depending on your application, maybe it's high noise or even though the the Turks are differentiable. In there you may want a visual indicator or just one chirp that could talk between those. So what software is offered with the A VR2? Right now everything's pretty standalone. The menu is fully driven via the keypad and you can have all the software. Really, it's built in there and it's pretty user friendly. The probes themselves use the CSP software and that configures everything in the probes, high voltage discriminator settings and anything you would need for calibration. So some of the algorithms from normal and high contamination. This one would be done via your alarm levels so as you progress through it'll you know be green if it's. Below the lower level, it'll be orange if it's in between the two alarm set points, and then if it's exceeding the second set point it'll alarm red. So you determine those with your alarm set points. So another question on the calibration. The calibration is in the probe itself. The unit itself is really a data driver, you can't calibrate it, but it's more of a functionality calibration. You don't pulse it like you do with the regular scalar system. Say you know any of the scalar rate meter combos. You would pulse them and you would run it in scalar mode. The data processing is all done on the probe itself and it sends a string over there and that's just really acts as a display and power display for that itself. So you don't really need to calibrate. The avior is a great operability check, but the probes are really your indicators and this acts as really it's like a monitor for your computer. And a docking station somewhere to that. So any special alarms for surface contamination? I'm going to take that as if the detectors contamination if it's contaminated say if you end up brushing it up against something and you do get contamination on it. You can determine that through elevated background. If you have the dynamic, it'll compensate for that, but there's no separate alarm. There's no way to discern if it's on a sample or on the detector unless you have it using a proximity switch like a Max switch first. Then you can set an alarm for a background limit to put a boundary on that, OK. So one is about adding external audio devices to the I/O, pretty much their standard outputs. You can use the audio Jack, you can put a speaker on there if you want to put it around the corner or if that meter has to be like under something so where you can't use it or listen to it readily so you can extend that. Or headphones for if it's a high noise Environments headphones are all they're really nice to have. The I/O will drive. Anything with a DC relay, So it could be a light tower, it could be a spinning light or door lock, like micro switches, anything like that would be able to drive that. So it's pretty, it's fairly universal. And one thing, the black object attached to the EVR, this is the SVLD detector, and I have one right here and it's a cesium iodide. And it's the ambient dose rate meter in the micro R micro range or micro receiver range that you plug into the Avior and it acts as an ambient low dose rate probe. And you can also set alarms in there. So if that exceeds a certain threshold double background or 50% increase, it can alert the operator or it can walk out and prompt you to redo backgrounds. Or this is what we were thinking about for supervisory software, where you'll have a frisking station and you can also put the SPLD in there. And not only do you have a frisking station for contamination, but you also have another ambient background measurement for that location that you may not be readily to put a traditional installed system in there. And another question was, could we do 2 legacy pancake probes? Currently we're looking at doing a single on a single channel and we have to adjust the firmware. If there is a strong need for two, please leave it in your pop up box for comments and that's valuable input for our engineers, so they'll take that all those comments to consideration, OK? So ones on the calibration of the wide area detector in the video I showed using a plate source. Those are my sources available. You can calibrate as you need. Obviously wide area plate sources are the optimal configuration. I know some facilities are limited with plate sources. Common practice if you don't have a large area source, particularly for the 2:50, it is quite a large detector. Most common larger resources will be in the 100 square centimeter range or a little larger 120. You can take measurements at various points on there and you can average those or you can use the most conservative. Really depends on your application and how you're looking at that. So next question is on a carrying case option. I don't know if we provide a carrying case option, I know we have a transport case. We can provide with a hand and foot monitor, but I can look into that and we can get back to you on that. But I usually keep mine in the standard Pelican case fits well, but I'll check and then get back to you if that's an option that's on that price list. I see another one for a neutron rim ball. Yes, you can connect any of the CSP probes, so I have a neutron probe. Here and it's a CSP connector and this will go into the A VR2. You can use the the new SDSM D2 and that's a neutron rim ball so you can use the SVLD and an SM D2 and you can have neutron and gamma ambient dose rates in the field. So anything with a CSP connector will work with the A VR2 system and this will extend to high range low range contamination probes. And anything in that CST family from that first slide I showed would operate with the A VR2 and that's kind of the beauty of the ecosystem. Good questions this one might be for Frederick, I might ask you about this is most devices used an exponentially weighted moving average which is slow calculator of counts per second. Is that what we use or is there another technique that would be faster? Yeah, basically we we use smoothing algorithm in order to to average the the reading and not having something too much changing overtime indeed. So the formula is. I don't have it from top of my memory but it's mentioned in the in the user manual. Yep, that's a good question. And one thing we have was those two bar indicators is one's the instantaneous and one's that smoothing feature. Yeah. And you also have the the maximum reading that retains for few seconds as well. Yes, that's a good point of threat to mention that Frederick, that is great. So you do have a couple of different metrics to look at that would kind of lead you to having the feel of traditional analog meters which I know is. Kind of been a complaint transitioning to digital and why some people still use analog, excuse me? Or they prefer an analog face. But in reality all of those analog faces are driven by a digital output, so the speed at which they go is mimicked. And they also use an algorithm so similar to a lot of other common products. They all operate in a fairly similar manner. So there's not too many. Analog Devices I can think of that are on the market now. Everything is transitioned to ASIC based processing. OK. I think that's it for questions or come one from Ron, the dual foot application or workers need to traverse potentially contaminated areas. This is a perfect solution for the transportable hand and foot but has the wheels. So if you're at an NPP and you're working on a valve or a system or breaching a a system or any sort of barrier, you set up kind of a temporary area. You put up your protective barriers and all your contamination controls and this would be perfect stepping off that and. Blue of just surveying your hands because I know that's very time consuming and you may have a space limited area, so this would be an excellent throughput supplement for that. And I know a lot of facilities will have their main radiation control area defined with whole body counters or something similar to that. But they also have areas that are strategically located for higher risk areas that they'll go through. And they may also be another hand and foot monitor. And that could be very cumbersome to move calibrate. You could have background issues. Some places will use a older hand and foot monitor and it may not have background compensation like this does. So this would be kind of a perfect in between solution. OK, all right, so wait. Does anyone else have any additional questions? So I got one, is the memory still limited? As in the original the memory on board actually lasts a long time, you shouldn't have any issues running into find that. So yeah, we have got much more memory available to load, so about 200,000 records. And then you also do about 40 months of data and then you can download that. So you shouldn't have any issues with running out of memory for data collection on this. It's a pretty significant amount of data and basically you would you would download the data using the USB comport. This one is also available for upgrading the device framework. So you don't have to to come with the computer, you just copy the the Famer upgrade on the thumb drive. You would connect to the unit and you would upload the system. So it's very, very easy and simple to do. Yeah, I did mine. I got my test unit in the box and was able to pick it up fairly quickly and very user friendly. We got one question, one comment about the evor being kind of a repackage radio gem. This is a very different unit. It does have the dual inputs. It still uses the CSP technology. It has a larger display. So the common feature the CSP ecosystem is it's very consistent experience. The hardware and the back end all changes. Different ASICS, different boards. Yeah, so it's just modern, but it still has the same experience. For that and it has the dual inputs and the alarms. So some of those features are differentiated. That one for the type of battery, it's a lithium ion, I don't have the exact, it's a Lipo or Frederick, do you know if that's a Lipo so you can ion battery? Absolutely. OK. So there's no memory effect. And it charges pretty quick. I've had mine unplugged and running for long periods of time, even driving external probes. There was no significant impact on battery life from my usage of it. And that's what makes it great for a temporary RCA is it can be charged, you can unplug it, set it up, it'll last you a shift or more, and then you can charge at the end of the day. So you don't have to run cables across boundaries. And that's a great logistical savings. Okay. And I think that's our questions. And I'd like to thank you all for attending and listening to me for the last hour. And we'll go to the next. I'll turn it over to Hope and she can close this out. Thank you everybody for attending today's webinar. If you have any more questions or would like to talk to one of our representatives For more information at the end of this presentation, a contact U.S. box will appear and you can click on that and we will reach out to you. Everyone, have a good day. Thank you everybody. _1732214045711