Fast Neutron Time-of-Flight Spectrometer Used with the Karlsruhe Isochronous Cyclotron
- 1 September 1968
- journal article
- research article
- Published by AIP Publishing in Review of Scientific Instruments
- Vol. 39 (9) , 1279-1288
- https://doi.org/10.1063/1.1683651
Abstract
A high resolution, fast neutron, time‐of‐flight spectrometer used for neutron energies between about several hundred kiloelectron volts and 30 MeV is described. A 1 nsec neutron pulse occurring with a repetition rate of 20 kc is obtained with a novel ``bunching deflection'' system operating on the internal beam of the fixed energy Karlsruhe isochronous cyclotron. By the timing of the neutrons over a 57 m flight path a resolution of 0.025 nsec/m at optimum was obtained. Detector counts are accumulated in a 2×8000 channel time analyzer system with 1 nsec channel width. A planned flight path of 180 m and an increase of the repetition rate from 20 kc at present to 200 kc is expected to provide further improvements of the spectrometer.Keywords
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