GMC600

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작성자예리 조회 3회 작성일 2022-05-17 05:09:40 댓글 0

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GMC600 SBT11 Geiger Counter vs GMC600+ LND7317 Geiger Counter

This video shows the difference between Russian СБТ11 tube and US LND 7317 pancake Geiger counters made by GMC. SBT-11 is lighter but reacts slower than LND7317 type counter. Also I show reactions to UV light with my test samples. Радиоактивный Наука
Crawling in Film : Hi, interesting demonstrations. Why are the cpm readings increasing all the time? I plotted the values for each demonstration and each exhibited virtually a straight-line of increasing. It's almost as if the devices were displaying the plain count rather than rate of count (cpm). How long would the devices have taken to settle down ?
L2L : Thanks for very informative video. I was considering getting either one. I decided to get 600+ after seeing your video.
fhhsvnggbh : Hi there, thanks for the video. I'm interested in logging the data around my house in a big city. I don't own any test sources or anything, just curious to see the data over the course of a year for example. I saw a few of these on Amazon and wondered if it was worth is for me to pay a lot of money for the 600plus VS say the GQ 320+V5 Data Logger.
Adolf Poohtin : Given enough time, will the 600 and 600+ give similar readings? In other words, is all the difference only about response time or is it also about accuracy?
Karshmellow : I am interested in buying the GMC-600 plus. From your experience, do you think it detects alpha radiation? Some counters say they do but they don't.

Dosimeter Dozymetr GQ Electronics GMC-600 SBT-11 Geiger Counter

Hello everyone interested in ionizing radiation!

I rarely record movies with spoken comments, but I add subtitles to the movie - ATTENTION PLEASE ENABLE SUBTITLES

here you can buy this dosimeter
http://gqelectronics.com

The dosimeter uses a pancake SBT-11 Geiger counter

My Blog: http://dozymetria.wordpress.com

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Thanks for watching
Searinox Navras : I have the GMC-600 SBT-11 variant. From my experience either the tube is undervolted or the CPM setting is too high. I had to change voltage and recalibrate mine to make it accurate. With Am-241 I get 390 uSv/h and around 128000 CPM with 300 CPM/uSv/h, a dead time of 69 microseconds and a voltage of 62.67%(though I don't recommend that high voltage if you keep the metal mesh in front of the tube as it produces induction currents) and no auto-voltage. Note that not all SBT-11 tubes will like this as those already sensitive at background will instead produce very high counts at this voltage. But it is more in line with what I've seen other devices produce from 0.9 uCi Am-241.

The tube's background is around 20 CPM and lower than most but I got good detection otherwise. I intend to test its upper limit with a DP-63-A radium scale. I get about 1.1 uSv/h from tritium which is another good test for mica window sensitivity. I didn't know the SBT-11 variant was still in production. Mine did not come with the pretty velcro case and came with a cheap black pouch.

The original device came with a SBT-11A tube which behaved oddly and produced sporadically high readings(with default settings) and was not reliable. I replaced it with a SBT-11 which is actually more sensitive than the original SBT-11A so no matter how much the thinner "A" variant window might help with alpha sensitivity, the tube's internal sensitivity can vary a lot too.

Other than that, the buttons become difficult to press after a while and require more force/"massaging" to register a press. It's not the end of the world but it is annoying, though I suppose the GMC600 SBT-11 variant is probably the cheapest alpha geiger you can find.

The SBT-11 supposedly can reach up to 3-4 millisieverts/hour, you should test that.
Odstavec-900mm : Интересный аппарат!
Señor Capitán Diogenes : Thats a nice device. What kind of battery does it use? And how much did it cost? Is it well-built or does it feel cheap?
K Khariy : Aa, this counter can detect alpha
Элена Vesna : first thought, you show us a camera)) But no, it`s dosimeter. He has a mica sensor?

GQ GMC 600+ Geiger Muller Counter/Radiation detector/Dosimeter/ RP Tester

#geigercounter #Geigermullercounter #Radiationdetector #alpha #Beta #Gammameter #Xrays #Metaltesting #dosemeter #RPtester #Irtester
For more info and direct purchase of this instrument visit https://www.instrukart.com/product/gq-gmc-600-plus-geiger-muller-counter-radiation-monitor/

GQ GMC 600 Plus Geiger Counter Radiation Monitor is a portable nuclear radiation detector. It detects Alpha, Beta, Gamma, X-Ray Radiation and can be used as a continuous radiation monitor or used as a personal dosimeter. It detects and visualizes the radiation in real-time and records the historical data for future analysis.

For more Info kindly reach Our Domain Expert At+7331110506(Whatsapp)/(+91)40-40262020)
Vasanthgiri Goswami : How much it's cost
Тим Сид : Первый индийский радиофил
T Mac : COULD YOU HELP ME WITH MY GEIGER

... 

#GMC600

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