[ RadSafe ] HPGe efficiency calibration source for soil samples

Dan McCarn hotgreenchile at gmail.com
Sun Nov 4 01:57:59 CDT 2012


Hi List:

Does anyone of the list happen to have a lead pig (or graded lead pig)
suitable for a 3x3" NaI detector & soil sample can that they would be
willing to part with?

Contact me privately.

Thank you!

-- 
Dan ii

Dan W McCarn, Geologist
108 Sherwood Blvd
Los Alamos, NM 87544-3425
+1-505-672-2014 (Home – New Mexico)
+1-505-670-8123 (Mobile - New Mexico)
HotGreenChile at gmail.com (Private email) HotGreenChile at gmail dot com



On Wed, Oct 24, 2012 at 4:41 AM, Dlawrencenewyork
<dlawrencenewyork at aol.com>wrote:

> 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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