[ RadSafe ] Will Robert Cherry and John Johnson face thetruthabout DU?

[NIXON, Grant]

There is absolutely no chemical difference between natural uranium and
depleted uranium (DU). That is why physical separation of U-235 is
necessary. 

DU should present a lower radiological hazard (in cases where one might
exist) than natural uranium because it has been "depleted" of its
fissionable, natural radioisotope U-235 (the natural abundance of U-235
is 0.7% in chemically-purified uranium). People who inhale DU (e.g.,
from exploding munitions) are exposed essentially to U-238.

It could be argued that the greatest threat from airborne uranium
(depleted or not) would stem from toxicological effects rather than from
radiological effects (e.g., see the BEIR VI data on uranium miners and
the lack of statistically detectable excess cancers).

Grant Nixon, Ph.D.
Radiation Physicist

-----Original Message-----
From: radsafe-bounces at radlab.nl [mailto:radsafe-bounces at radlab.nl] On
Behalf Of Khalid Aleissa
Sent: Friday, March 03, 2006 5:54 AM
To: Sandy Perle; radsafe at radlab.nl
Subject: Re: [ RadSafe ] Will Robert Cherry and John Johnson face
thetruthabout DU?

I am one of those who faced too much controversy with regard to the 
misconception of the DU effect either by those refereeing to media with 
political motivation or those write with radio phobia background
motivation, 
and those who hold the existing scientific facts about it.

Since this is (as I assume) a scientific list, I expect only a
scientific 
argument with scientific studies ... In this regard I will post this 
question and expect to see the answer on scientific basis:

Does DU have different effect than Natural U? I know the physical 
difference, but those who claim finding DU within human body of veterans
or 
what so ever, did they find natural U in others bodies (or body fluids)
and 
observed different health effect?

Khalid Aleissa


----- Original Message ----- 
From: "Sandy Perle" <sandyfl at earthlink.net>
To: <radsafe at radlab.nl>
Sent: Thursday, March 02, 2006 12:35 AM
Subject: Re: [ RadSafe ] Will Robert Cherry and John Johnson face the 
truthabout DU?


> On 1 Mar 2006 at 12:59, James Salsman wrote:
>
>> I challenge those participating on this list to step forward:
>
> As a professional HP, and not an expert on DU, I would be interested
> in a factual discussion regarding the points posted, as well as the
> various references. I am not interested in just more name calling and
> other derogatory remarks focused on James Salsman, as has been the
> norm her eon Radsafe recently. Let's debate the facts and not engage
> in personal attacks. As stated, I am not an expert on DU and am
> interested in a true scientific debate. I've often observed what was
> once considered to be "without a doubt" later be found to be 180
> degrees from what we were told and taught.
>
> Let the true debate begin, on the evidence, not the perceptions.
>
> -------------------------------------
> Sandy Perle
> Senior Vice President, Technical Operations
> Global Dosimetry Solutions, Inc.
> 2652 McGaw Avenue
> Irvine, CA 92614
>
> Tel: (949) 296-2306 / (888) 437-1714  Extension 2306
> Fax:(949) 296-1144
>
> E-Mail: sperle at dosimetry.com
> E-Mail: sandyfl at earthlink.net
>
> Global Dosimetry Website: http://www.dosimetry.com/
> Personal Website: http://sandy-travels.com/
>
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