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Anonymous Poster

Radiation Detector Calibration

12/13/2006 10:01 AM

Looking for ideas on how to obtain a co 60 calibration source for calibration of Radiation DEtector- NAL- PMT- pre amp_spectrosocpy amp_SCA- counter type string. Or would AM 124 found in smoke alarms be an idea. I also need to fix my HV unit but thats another story.

Cheers- will reg now

FRank-

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Guru
Engineering Fields - Control Engineering - New Member China - Member - New Member

Join Date: Sep 2006
Location: CHINA
Posts: 2945
Good Answers: 14
#1

Re: Radiation Detector Calibration

12/16/2006 7:42 AM

I thnk the best bet is using a standard gauge to calibrate your source and then in turn to your detector. I recommend instrument as shown and its specification as follow:

v

1. sensor: 30x25mm NaI(TI) crystal

2. sensitive: 350cpm/u Sv

3. responsible: 0.06—3.0 Mev <=+-30%

4. measure range: 0.01—200u Sv/h

5. display: 4 1/2 lcd digital display

6. threshold value: 0.25, 0.5,2.5,10,20,100,200 u Sv/h

7. low bettery warning: when voltage of bettery bellow 2.2V,

8. precision: 0-10uSv/h<=+-5%

9. power dissipation: 200mW

10. envirument: -10--+50C

11. weight: 1.2kg, (include 2 A bettery)

The americium 241 can be found in smoke alarm. but you dont know its dose.and this element radiation is far more less than co60! how high is your hv?

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Join Date: Dec 2006
Location: Ireland
Posts: 3
#2
In reply to #1

Re: Radiation Detector Calibration

12/19/2006 3:35 AM

Thanks Power- I will look into that.

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