[ RadSafe ] Uranium Work with powers and other solids

[Douglas Minnema]

The simple answer is, it depends on the enrichment.

At lower enrichments the chemical toxicity dominates the concern; at higher enrichments the radiological toxicity dominates the concerns.

DOE's standard DOE-STD-1136-2009, "Guide of Good Practices for Occupational Radiological Protection in Uranium Facilities" should help you with your questions.  The document on DOE's technical standards website, which should be freely available.

Doug Minnema, PhD, CHP
US Defense Nuclear Facilities Safety Board

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From: radsafe-bounces at health.phys.iit.edu [radsafe-bounces at health.phys.iit.edu] on behalf of Thomas O'Dou [tomodou at icloud.com]
Sent: Tuesday, March 12, 2013 12:41 PM
To: The International Radiation Protection Mailing List
Subject: [ RadSafe ] Uranium Work with powers and other solids

Good Day RADSAFE!



I am interested in anyone's  experiences regarding the following questions.




How much uranium powder is cause for concern regarding intake at your facility?


When working with uranium powders, at what amount do you consider the necessity to provide intake prevention controls (isolation, face shields, etc.)?



At what level of bioassay response do you consider a dose evaluation necessary?


Thank You!

Tom O'Dou
tomodou at icloud.com .msg-quote p.MsoNormal, li.MsoNormal, div.MsoNormal {margin: 0in 0in 0pt; font-family: "Calibri","sans-serif"; font-size: 11pt;} .msg-quote li.MsoNormal, div.MsoNormal {margin: 0in 0in 0pt; font-family: "Calibri","sans-serif"; font-size: 11pt;} .msg-quote div.MsoNormal {margin: 0in 0in 0pt; font-family: "Calibri","sans-serif"; font-size: 11pt;} .msg-quote a:link, span.MsoHyperlink {color: blue; text-decoration: underline; mso-style-priority: 99;} .msg-quote span.MsoHyperlink {color: blue; text-decoration: underline; mso-style-priority: 99;} .msg-quote a:visited, span.MsoHyperlinkFollowed {color: purple; text-decoration: underline; mso-style-priority: 99;} .msg-quote span.MsoHyperlinkFollowed {color: purple; text-decoration: underline; mso-style-priority: 99;} .msg-quote span.EmailStyle17 {color: rgb(0, 32, 96); font-family: "Comic Sans MS"; font-style: normal; font-weight: normal; mso-style-type: personal-compose;} .msg-quote .MsoChpDefault {mso-style-type:
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