[ RadSafe ] Hot particles on automobile air filters

[Busby, Chris]

Dear Radsafers

I see that Jeff has converted the Tokyo filter jpg I sent to a .pdf.
It is in one of his recent emails.
Can I have your comments on this please, especially what you think is there.
In particular what is that at 230kev. Is Te 132?  
If so there must have been a lot of it there to begin with. Other suggestions please.Is that Am-241 at 60kev? 
Or is it an artifact.
This is not for putting on websites please. Not at this stage. It is for peer review only and discussion. 
You can see the Cs134 I guess. Hard to miss. 
Chris 

-----Original Message-----
From: radsafe-bounces at agni.phys.iit.edu on behalf of Busby, Chris
Sent: Sun 26/06/2011 09:07
To: The International Radiation Protection (Health Physics) Mailing List
Subject: Re: [ RadSafe ] Hot particles on automobile air filters
 

Oh, I see I have to pdf it. Right, Ill do that.
C

-----Original Message-----
From: radsafe-bounces at agni.phys.iit.edu on behalf of Dimiter Popoff
Sent: Sun 26/06/2011 03:36
To: radsafe at agni.phys.iit.edu
Subject: Re: [ RadSafe ] Hot particles on automobile air filters
 
The spectrum did not make it to the list.
I was asking because I was under the impression the airfilters were said
to be from North America, not Japan. That some contamination can be
sampled there is less surprising. Quantitative assessment will not be
an easy thing to do - especially without knowing the mileage behind
this filter, nor its route during the measured period. Still I would
be curious to look at some spectra.

Thanks,

Dimiter

------------------------------------------------------
Dimiter Popoff               Transgalactic Instruments

http://www.tgi-sci.com
------------------------------------------------------

>From: "Busby, Chris" <C.Busby at ulster.ac.uk>
>To: "The International Radiation Protection (Health Physics) Mailing List"
>	<radsafe at agni.phys.iit.edu>
>Subject: Re: [ RadSafe ] Hot particles on automobile air filters
>
>Dear Dimiter,
>
>Yes, I have the spectrum in front of me. The peaks show Cs137 and Cs134.
>I attach the spectrum for your interest. The vehicle filter was from =
>Tokyo.
>Maybe you can find the Radon daughter peaks.
>This spectrum must not be put on the internet but can be used for =
>helpful comment.
>
>I expect Mr Franz and Mr Dapra will say I made it up on photoshop.
>
>
>Sincerely
>Chris
>
>
>
>-----Original Message-----
>From: radsafe-bounces at agni.phys.iit.edu on behalf of Dimiter Popoff
>Sent: Sat 25/06/2011 13:22
>To: radsafe at agni.phys.iit.edu
>Subject: Re: [ RadSafe ] Hot particles on automobile air filters
>=20
>But did you (or anyone else) see these 134Cs peaks you are talking
>about in these spectra?
>
>Thanks,
>Dimiter
>
>------------------------------------------------------
>Dimiter Popoff               Transgalactic Instruments
>
>http://www.tgi-sci.com
>------------------------------------------------------
>http://www.flickr.com/photos/didi_tgi/sets/72157600228621276/
 
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