[ RadSafe ] HPGe efficiency calibration source for soil samples

[Dlawrencenewyork]

David,

The most cost effective solution is a PC MCA card coupled to an NaI detector  - as a hobby. The Inspector MCA units are from Canberra and can be quite pricey depending on which model you choose especially if one uses HPGe detectors. I am known to troll eBay for the hobby stuff. 

Been to Johnston Atoll lately?

Best Regards,
David Lawrence
646-246-3465


On Oct 24, 2012, at 12:57 AM, JPreisig at aol.com wrote:

> Hey Radsafe,
> 
>      I did use a Personal Computer based MCA  system called the Inspector. 
> It worked pretty well.
> I don't know about low cost, though.  Physics Today sometimes has  
> advertisements concerning
> Multi Channel Analyzers.  Good Luck.
> 
>     Joe Preisig
> 
> 
> 
> In a message dated 10/23/2012 11:37:57 P.M. Eastern Daylight Time,  
> ainut at hiwaay.net writes:
> 
> Mr.  Willis, did you get an answer to your Tokyo soil sample analysis  
> question?
> 
> The reason I ask is that I also want to play with mca's  again as a hobby 
> myself.  It has been many years since I did that  professionally and I'd 
> like to take it up again.  So far, I have no  equipment, no sources, and 
> no samples.  :) :)  I hear all these  tales of low cost equipment but I 
> can't find any via web  searches!
> 
> Thanks,
> David  Merchant
> 
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