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Re: query
"Bauman, Rodney L. (84U)" wrote:
[...]
> Natural Th-232
> The 236 keV peak is from daughter Pb-212 (239 keV at 47%)
> The 339 keV peak is from daughter Ac-228 (338 keV at 15%)
> The 584 keV peak is from daughter Tl-208 (583 keV at 86%)
[...]
I have the same judgement.
For the 73 keV peak, if you have a shielding made of lead, it is the
X-Ray fluorescence peak that you see.
Regards,
Yann D.
> > -----Original Message-----
> > From: D J Hornsey [SMTP:bssdjh@BATH.AC.UK]
> > Sent: Friday, August 24, 2001 7:03 AM
> > To: radsafe@list.vanderbilt.edu
> > Subject: query
> >
> >
> > Dear Radsafers,
> > Our Physics department is having a spring clean, and in a
> > batch of samples for disposal was a radioactive one labelled Zirconium
> > Fluoride glass. A gamma spec. of the sample revealed a major peak at 236
> > keV and minor ones at 73, 339 and 584 keV.
[...]
--
_____________________________________________________________
| Yann Donjoux Division TIS / Radioprotection (RP) - E07900 |
| CERN, Organisation européenne pour la Recherche Nucléaire |
| CH-1211 Geneve 23, Switzerland. |
| Bat : 23-R-027 |
| Electronic mail Yann.Donjoux@cern.ch |
|_____________________________________________________________|
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- References:
- RE: query
- From: "Bauman, Rodney L. (84U) " <84u@BECHTELJACOBS.ORG>