A comparison of two methods of in vivo dosimetry for a high energy neutron beam.
Two methods of in vivo dosimetry have been compared in a high energy neutron beam. These were activation dosimetry and thermoluminescence dosimetry (TLD). Their suitability was determined by comparison with estimates of total dose, obtained using a tissue equivalent ionization chamber. Measurements were made on the central axis and a profile of a 10 x 10 cm square field and also behind a shielding block in order to simulate conditions of clinical use. The TLD system was found to provide the best estimate of total dose.
Blake
S W
SW
Physics Department, Clatterbridge Hospital, Merseyside.
Bonnett
D E
DE
Finch
J
J
D005214:Fast Neutrons; D006801:Humans; D011829:Radiation Dosage; D011834:Radiation Monitoring / Q000295:instrumentation / Q000379:methods*; D013819:Thermoluminescent Dosimetry / Q000295:instrumentation / Q000379:methods*