A system is described for measuring high resolution (e.g., 1 kev) total neutron cross sections at high counting rate in the range above 50-kev neutron energy using as a neutron detector a thick proton recoil detector. The pulsed-beam time-of-flight technique is used to identify the neutrons of interest, which are produced in the target of an electrostatic accelerator. Energy modulation of the accelerator makes it possible to make observations at 100 energy points simultaneously. Illustrative results are given on the 585-kev resonance in sulfur and on aluminum in the neighborhood of 585 kev. The gain in speed of taking data over conventional systems is greater than a factor of 100.
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Cranberg et al. (1957) studied this question.
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