Abstract
A Philips continuous mode 14.4 MeV neutron generator has been modified to pulsed operation at a repetition frequency of 1 kHz. The torso section of a Bush phantom containing a tissue-equivalent solution, located 5 cm above a 15 cm diameter*12.5 cm NaI(Tl) detector, was irradiated with a 3 cm*10 cm neutron beam. The detection of the induced gamma emission from the phantom in four sampling intervals during the pulsing cycle has permitted the separation of prompt events due to inelastic scattering of fast neutrons, prompt radiative capture and delayed emission. The reproducibility of 25 measurements of the major soft tissue elements carbon, hydrogen and oxygen was +or-9.3, +or-2.0 and +or-8.3% for a measured collimated dose of 0.17 mSv per measurement. If a 1 m section of the human body were similarly irradiated, the dose average would be less than 10 mu Sv.
Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
