In article <199510281917.OAA13346 at visar.wustl.edu>, nikolaic at VISAR.WUSTL.EDU (Nikolai Chitaev) writes:
>>>> I have a question to ask. What is the real function of exposure
>> the p32 X-ray film in -70 c?
>> I guess that at -70oC your ENHANCEMENT SCREENs will reflect emmited
> b-particles toward the film, so providing more energy otherwise being
No. The screen actually phosphoresces (or fluoresces); the b-particle hits
the screen, a photon(s) of light then comes back and darkens the film.
Richard P. Grant MA DPhil rpgrant at molbiol.ox.ac.uk
Nuffield Department of Obstetrics and Gynaecology, University of Oxford.
"Winds light to variable"