title: Transmission detectors for cyclotron in-vivo irradiations with neutrons.
abstract: The neutron fluence imparted to the irradiated subjects needs to be measured accurately in order to obtain meaningful results from diagnostic irradiations. A convenient neutron detector for this purpose is in the form of a transmission chamber, which covers the whole beam directed at the subject. In one design the detector is an ionization chamber, filled with propane gas, in another a thin sheet of plastic scintillator is coupled to a pair of photomultipliers.
mesh_terms: D009502:Neutrons; D013679:Technology, Radiologic / Q000295:instrumentation*