Radiation Protection Dosimetry Vol. 110 Nos. 1-4 © Oxford University Press 2004; all rights reserved
The use of passive personal neutron dosemeters to determine the neutron dose equivalent component of radiation fields in spacecraft
National Radiological Protection Board, Chilton, Didcot, Oxon OX11 0RQ, UK
* Corresponding author: david.bartlett{at}nrpb.org
For the altitude range and inclination of the International Space Station (ISS), secondary neutrons can be a major contributor to dose equivalent inside a spacecraft. The exact proportion is very dependent on the amount of shielding of the primary galactic cosmic radiation and trapped particles, but is likely to lie in the range of 1050%. Personal neutron dosemeters of simple design, processed using simple techniques developed for personal dosimetry, may be used to estimate this neutron component.