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[FWD: ED for C-14 Sodium Lactate









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There are 2 messages totalling 99 lines in this issue.



Topics of the day:



  1. Effective dose per unit administered activity

  2. NRC Licensing under new regulations



Date:    Mon, 15 Jul 2002 09:07:48 +1000

From:    Paul Einsiedel <Paul.Einsiedel@DHS.VIC.GOV.AU>

Subject: Effective dose per unit administered activity



Dear colleagues,



I wondering if any body out there has done any work with or would be able

to provide me with a reference to the effective dose per unit administered

activity for the following mixture: l-[U-14C]Lactic acid, sodium salt.



I have looked at ICRP 80 without success. The effective dose is required to

be placed in a consent form for research involving the exposure of human

volunteers. The researchers are proposing to administer  80 microcuries.



Apparently, the researchers have attempted to find out this information but

have been unsuccessful.



______________________________________________

Paul Einsiedel

Physicist

Radiation Safety Program

Department of Human Services

17th Floor

120 Spencer Street

Melbourne Victoria 3000

Phone: (03) 96374179

Fax:     (03) 96374508

email : paul.einsiedel@dhs.vic.gov.au

http://www.dhs.vic.gov.au/phd/hprot/rsu/



------------------------------



Date:    Sun, 14 Jul 2002 21:55:38 -0600

From:    Jerry White <gerald.white@MINDSPRING.COM>

Subject: Re: NRC Licensing under new regulations



Scott:



The NRC has issued a draft copy of NUREG 1556 which was supposed to be

the guidance document associated with the new part 35.  Unfortunately,

it was written a year of so before part 35 was finalized.  It contains

a great many prescriptive recommendations that are contrary to the

letter of part 35 and more generally, contrary to the "risk informed.

performance based" philosophy that the NRC used to create the new part 35.



The AAPM and ACR spent a lot of time and effort in encouraging the NRC

to modify the NUREG and the associated inspection guidelines.   There is

no guarantee of success, but I anticipate that there may well be some

substantial changes in the final version of NUREG 1556.  The final

version should be out in a month or so.



My suggestion would be to wait until the final NUREG  is published, see

what it looks like and what sort of guidance AAPM and ACR put out and

then think about how you might like to amend your license.



Jerry



Scott DUBE wrote:



>It's my understanding that the new 10 CFR Parts 20, 32, and 35 go into

effect on 10/24/02.  We would like to amend our NRC license "in its

entirety" so we can operate under the new regulations and leave all the old

prescriptive language behind.

>

>Does anyone know if there is a Reg Guide which explains how to do this?

Or is it even necessary?

>

>Thanks for your help, Scott

>~~~~~~~~~~~~~~~~~~~~~~~~~~~~

>Medical Physics Organizations  http://aapm.org/orglist/