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From: Harry Elston <harry.elston**At_Symbol_Here**gmail.com>
Subject: Re: FW: [DCHAS-L] Radiation Experiments
Date: Thu, 15 Aug 2013 20:05:27 -0500
Reply-To: DCHAS-L <DCHAS-L**At_Symbol_Here**MED.CORNELL.EDU>
Message-ID: CAAza6Ttma+ouViQexuidQg9fDOxaEqa+811T26Y8m3f8Lwz2iA**At_Symbol_Here**mail.gmail.com
In-Reply-To <4D0A3882C09D2E42BE7C6B7265CB0D5FCF5C7862**At_Symbol_Here**AVATAR.umhb.edu>


Ruth Ann:

Define "safe" in the instance.

If you define "safe" as "zero exposure" then the answer is no - because you and the audience are getting a beta-gamma dose from the uranium oxide in the glaze.

If you define "safe" as "the exposure is as low as reasonably achievable" with respect of to the intended lesson, then the answer is "yes." The field will be quite low (on the order of 10s uR/hr) so the total dose will also be low.

Chemistry is not a "zero exposure" occupation and we should not treat it as such. It should be a "zero overexposure" occupation. Most Fiestaware that I have encountered runs about 5-50 uR/hr on contact.


Harry


On Thu, Aug 15, 2013 at 5:22 PM, Murphy, Dr. Ruth Ann <rmurphy**At_Symbol_Here**umhb.edu> wrote:

From: Murphy, Dr. Ruth Ann
Sent: Thursday, August 15, 2013 5:21 PM
To: 'DCHAS-L'
Subject: Radiation Experiments

Hello, Everybody,

Are "radiation experiments" with Fiestaware considered "safe"? [Instructor would take readings.]

Thank you!

Ruth Ann

Ruth Ann Murphy, Ph.D.

Professor of Chemistry

Chairperson, Department of Chemistry, Environmental Science and Geology

Chairperson, Health Professions Advisory Committee

Amy LeVesconte Professorship of Chemistry

JAMP Faculty Director

Goldwater Scholarship Faculty Representative

The University of Mary Hardin-Baylor

900 College Street

Belton, TX 76513-2599




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Harry J. Elston, Ph.D., CIH
Editor, JCHAS
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