An Apparatus for the Direct Determination of Slow Neutron Velocity Distributions

Autor:	J. H. Manley, E. A. Luebke, L. J. Haworth
Rok vydání:	1941
Předmět:	Physics business.industry Astrophysics::High Energy Astrophysical Phenomena Nuclear Theory Detector Neutron temperature Optics Deuterium Electric field Neutron Oscilloscope Nuclear Experiment business Instrumentation Beam (structure) Voltage
Zdroj:	Review of Scientific Instruments. 12:591-597
ISSN:	1089-7623 0034-6748
DOI:	10.1063/1.1769807
Popis:	Apparatus is described by means of which a modulated source of slow neutrons is produced and their intensity determined as a function of time. The deuteron beam of a high voltage tube is deflected by a modulated electrostatic field in such a way as to produce square bursts of fast neutrons of any desired length. After being slowed by hydrogenous material a selected beam of neutrons falls on a suitable detector at a measured distance from the source. Pulses from the detector are impressed on an oscilloscope screen, together with a sharply defined time scale and photographic records made. The time analysis of the neutron distribution is then made by a numerical count of the neutron pulses as a function of the time interval in which they occur.
Databáze:	OpenAIRE
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