This report describes the research which was conducted by Texas Nuclear Corporation on two possible neutron spectral measuring devices based on the detection of recoil protons.nA scintillation detector is described which has the ability to differentiate between neutrons and gamma rays by means of the different decay times of recoil proton and Compton electron scintillations. This detector has been incorporated into a neutron spectrometer which is highly insensitive to gamma rays over a detectable neutron energy region of approximately 0.8 Mev to greater than 17 Mev. Data obtained with the spectrometer are presented.nIn addition to the scintillation detector, investigations into the feasibility of using a spark counter as an energy sensitive neu¬tron detector are also described. The results of these investigations are discussed and representative data are presented.
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