Re: Thermal issues for Co-60

["Jean-Pierre Degrange" <degrange@cepn.asso.fr>]

>Date: Tue,  2 Mar 2004 16:27:29 +0000

>From: mark.ramsay@ionactive.co.uk

>Subject: Thermal issues for Co-60

>

>Dear All

>

>I'm sure I should work this out, my excuse - too tired :)

>

>Take a 10000 TBq Co-60 source (lets say its a point source). Are there any

>useful rules of thumb for working out the thermal (heat output) of that

source ?

>

>cheers

>

>Mark





Mark,



The Nuclides 2000 software, published by the European Commission,

(see http://itumagill.fzk.de/NUCLIDES_2000/) gives you for 60Co:



- specific activity                            4.2E13 Bq/g

- isotopic power (beta)                    6.5E-1 W/g

- isotopic power (beta+gamma)      1.7E1 W/g



It gives you thus for 60Co an isotopic power (gamma) per unit activity of

4.1E-12 W/Bq that you can use for your calculation



Hoping this will help, receive my best regards



Jean-Pierre



Jean-Pierre Degrange, CEPN, BP 48

92263 Fontenay aux Roses CEDEX France

e-mail: degrange@cepn.asso.fr

WEB: www.cepn.asso.fr







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