You need a radiation meter. - Page 2

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[ARCHIVED THREAD] - You need a radiation meter. (Page 2 of 2)

Posted: 7/21/2019 7:42:44 PM EDT

[#1]

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Posted: 7/22/2019 1:57:17 AM EDT

[#2]

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That is mostly beta.

Here is gamma only, ~4x background.
https://www.ar15.com/media/mediaFiles/286652/20190720_152934-1_jpg-1023890.JPG

The plates are glazed with Uranium oxide. You are seeing reflected light instead of filtered, hence orange instead of green. I bought the plates at a secondhand store. I'm thinking of parting with the two smaller plates to help fund this little treasure hunt.

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Can you recommend a decent calibration/function check source that's safe, relatively inexpensive and can be 100% legally purchased? One of my two meters is gamma only but the other one had a formica window to measure Beta and probably some Alpha (not very accurate).

Posted: 7/22/2019 4:01:32 AM EDT

[#3]

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Quoted:

Can you recommend a decent calibration/function check source that's safe, relatively inexpensive and can be 100% legally purchased? One of my two meters is gamma only but the other one had a formica window to measure Beta and probably some Alpha (not very accurate).

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Quoted:

Can you recommend a decent calibration/function check source that's safe, relatively inexpensive and can be 100% legally purchased? One of my two meters is gamma only but the other one had a formica window to measure Beta and probably some Alpha (not very accurate).

Just pick an element suitable for your radiac and pony up for a calibrated specimen.

Calibration & Accuracy
All our Disk sources are within 20% of their stated value.
For an additional $130, Gamma sources can be specially manufactured and calibrated against a Gamma radiation Standard. These calibrated sources will be accurate to within 5% of stated values and will include a calibration certificate.
Please call us at 517-919-6019 if you wish to order a calibrated Gamma source.
Calibration is only available for gamma sources.

http://unitednuclear.com/index.php?main_page=product_info&cPath=2_5&products_id=819

Barium133 1uCi. 10.7 years. Gamma: 81.0, 356.0
Cadmium109. 1uCi. 453 days. Gamma: 88.0
Cesium137. 1uCi. 30.1 years. Gamma: 32, 661.6 Beta: 511.6, 1173.2
Cesium137. 5uCi. 30.1 years. Gamma: 32, 661.6 Beta: 511.6, 1173.2
Cesium137. 10uCi. 30.1 years. Gamma: 32, 661.6 Beta: 511.6, 1173.2
Cobalt57. 1uCi. 270 days. Gamma: 122.1
Cobalt60. 1uCi. 5.27 years. Gamma: 1173.2, 1332.5
Europium152. 1uCi. 13.5 years. Gamma: 121.8, 344.3, 1408.0
Manganese54. 1uCi. 312 days. Gamma: 834.8
Sodium22. 1uCi. 2.6 yearsGamma: 511.0, 1274.5
Strontium900. 1uCi. 28.5 years. Beta: 546.0
Thallium204. 1uCi. 3.78 years. Beta: 763.4
Polonium210. 0.1uCi. 138 days. Alpha: 5304.5
Zinc65. 1uCi. 244 days. Gamma: 511.0, 1115.5

Posted: 7/22/2019 6:50:57 AM EDT

[#4]

I have one. It was fun seeing the expression on the technician's face when he heard the thing going off after giving me the ⁹⁹mTc injection prior to my parathyroid scan.

Also, gamma pee is cool.

Posted: 8/29/2019 2:01:08 AM EDT

[#5]

I have a CD V710 model 5 that I found in a thrift store. The needle is stuck but I can bump it around the low end of the scale. From reading these were discontinued because they only read up to 50R. Is it worth doing anything with? I already bought the GQ 500+.

Posted: 8/29/2019 1:52:13 PM EDT

[#6]

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Quoted:
I have a CD V710 model 5 that I found in a thrift store. The needle is stuck but I can bump it around the low end of the scale. From reading these were discontinued because they only read up to 50R. Is it worth doing anything with? I already bought the GQ 500+.

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Only useful for trying to find a safe path out of a nuclear disaster. Replaced by the V-715.

Nice little collector item.

Posted: 8/31/2019 8:28:45 PM EDT

[#7]

I have a cdv-700, purchased for 35 bucks from a geology professor from SUNY cobleskill. Any good?

[ARCHIVED THREAD] - You need a radiation meter. (Page 2 of 2)

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