Photon spectra in the workplace

["Monty Charles" <charlemw@novell1.bham.ac.uk>]

Dear Colleagues

I am trying to obtain data on the photon spectra (fluence vs 
energy) in the workplace (nuclear power plant, reprocessing plant, 
hospitals etc).  Can anyone help?

Why am I interested in this?  Most of the photon dose delivered to 
the Japanese bomb survivors was between 2-5 MeV.  In most 
occupational exposures the energy will be much less than this.  This 
leaves open the possibility that the radiation risk estimates from 
Japan may not be totally appropriate for routine exposures.  In an 
attempt to evaluate the magnitude of this effect I need some photon 
spectra.

Many thanks

Monty Charles
Dr Monty Charles, Reader in Radiation Physics
School of Physics & Space Research
University of Birmingham
Edgbaston
Birmingham B15 2TT
England
TEL +44  0121 414 3483
FAX +44  0121 414 4725
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