[ RadSafe ] Fw:"Occupational_Hazards_of_War_DEPLETED_URANIUM"newreport by Dr. RosalieBertell

Arvic Harms Arvic.Harms at npl.co.uk
Tue Sep 19 09:41:55 CDT 2006


Dear John,

There are several problems with this section.

- Pa-234m does decay to Pa-234, although (as you say) most of it (99.8+%) decays to U-234
- Pa-234 is not an alpha emitter
- U-234 is not in equilibrium with U-238 six months after producing fresh DU

Regards,

Arvic Harms
National Physical Laboratory

> -----Original Message-----
> From: radsafe-bounces at radlab.nl
> [mailto:radsafe-bounces at radlab.nl]On Behalf Of John R Johnson
> Sent: 17 September 2006 00:57
> To: mccarn at unileoben.ac.at; 'Roger Helbig'
> Cc: radsafe at radlab.nl
> Subject: RE: [ RadSafe ]
> Fw:"Occupational_Hazards_of_War_DEPLETED_URANIUM"newreport by
> Dr. RosalieBertell
>
>
> Dan
>
> Thanks for this.
>
>  I didn't read it because I've read too much of Rosalie's
> "stuff" over the
> last several decades to read any more.
>
> However, I think she is right this time. Th-234 decay to
> Pa-234m and Pa-234m
> decays to U-234 (99+%) and Pa-234 (~0.13%). Pa-234 has many
> gamma rays, but
> unless the other U-238 progeny are removed, they are difficult to see.
>
> John
>  _________________
> John R Johnson, Ph.D.
> *****
> President, IDIAS, Inc
> 4535 West 9-Th Ave
> Vancouver B. C.
> V6R 2E2
> (604) 222-9840
> idias at interchange.ubc.ca
> *****
>
> -----Original Message-----
> From: radsafe-bounces at radlab.nl
> [mailto:radsafe-bounces at radlab.nl]On Behalf
> Of Dan W McCarn
> Sent: September 16, 2006 4:25 PM
> To: 'Roger Helbig'
> Cc: radsafe at radlab.nl
> Subject: RE: [ RadSafe ] Fw:
> "Occupational_Hazards_of_War_DEPLETED_URANIUM"newreport by Dr. Rosalie
> Bertell
>
>
> What's with this (bottom of page 503) from Dr. Rosalie Bertell:
>
> "Thorium-234 decays to protactinium-234m (Pa-234m), an isomer
> of Pa-234,
> which has a half-life of 1.17 minutes and is a beta emitter.
> Protactinium-234m decays to Pa-234, which has a half-life of
> 6.7 hours and
> is an alpha emitter."
>
> Sorry, but Pa-234 was a beta emitter (with a very distinctive
> 1001 KeV gamma
> photopeak) decaying to U-234.
>
> >From Tuli's Nuclear Wallet Card, Pa-234m (β- : 99.84 %, IT :
> 0.16 %; 1.17 m
> 3) and Pa-234 (β- : 100.00 %; 6.70 h 5)
>
> See:
> http://www.nndc.bnl.gov/nudat2/wcbyz.jsp?z=91
>
> Dan W. McCarn
>
> -----Original Message-----
> From: radsafe-bounces at radlab.nl
[mailto:radsafe-bounces at radlab.nl] On Behalf
Of Roger Helbig
Sent: Saturday, September 16, 2006 4:59 AM
To: radsafelist
Subject: [ RadSafe ] Fw: "Occupational_Hazards_of_War_DEPLETED_URANIUM"
newreport by Dr. Rosalie Bertell

Critiques of the Gray Nun, now self-proclaimed expert in DU, Dr Bertel,
peace activist, are welcome.  Note the way that Moret, not an expert in much
of anything let alone DU where she makes her living preaching to the anti-DU
crusade all over the world, has sprayed this around to everyone including
the President of US.

Thanks.

Roger Helbig

----- Original Message -----
From: Leuren Moret
To: Dlind49 at aol.com ; bob.bobnichols at gmail.com ; asceptic at hotmail.co.uk ;
saigassistu at ignet.army.mil ; comments at whitehouse.gov ;
president at whitehouse.gov
Cc: baqaarefugeecamp at yahoo.co.uk
Sent: Friday, September 15, 2006 8:02 PM
Subject: "Occupational_Hazards_of_War_DEPLETED_URANIUM" new report by Dr.
Rosalie Bertell


Hi Doug - Here is the new report on depleted uranium
by Dr. Rosalie Bertell.  Please pass this around.
Leuren




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