Neutron QFs

["R. Ryder" <ha@cxa.dl.ac.uk>]

This is a reply to Jeffrey Pettigrews request for information
about the reactions of variuos  bodies, particularly non-US
about the ICRP increase of neutron quality factors.

The British Committee for Radiation Protection, way back in 1986
(J. Soc. Radiol. Prot, 6,(3),139(1986) ) decided that the evidence 
for an increase was weak, particularly for neutrons alone, and
reccommended that ICRP 21 QFs continue to be used. 

I understand that a similar position has been adopted throughout
The European Community.

I believe that the next revision of the Hisoshima / Nasaki bomb
survivors will provide more convincing data.

Roy Ryder
Daresbury Laboratory
Science and Engineering Council
UK