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  • 1960-1964  (2)
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  • 1
    Electronic Resource
    Electronic Resource
    Springer
    Czechoslovak journal of physics 13 (1963), S. 754-764 
    ISSN: 1572-9486
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract The authors describe the arrangement of a slow-fast coincidence system for a fast neutron time-of-flight spectrometer. In the “fast” section of the instrument a fast differential coincidence circuit is used. Compared with the original arrangement [1] the circuit permits a higher system stability to be achieved. In the concluding part of the paper results are given of measurements on neutrons from the Li7(d, n) Be8 reaction.
    Type of Medium: Electronic Resource
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  • 2
    Electronic Resource
    Electronic Resource
    Springer
    Czechoslovak journal of physics 10 (1960), S. 715-721 
    ISSN: 1572-9486
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Description / Table of Contents: Abstract В работе описан спект рометр для быстрых не йтронов, основанный н а принципе измерения времени пр олета нейтронов. Нейт ронные вспышки образ уются на мишени в результате отклоне ния ионного пучка уск орителя под действие м высокочастотного напряжения на деφлек торе. Время пролета не йтронов измеряется б ыстро-медленной схемой совпадений с б ыстрым совпадением н а измерительной коак сиалной линии. На спектрометре измеря лись нейтроновые спе ктры реакций D(d, n) He3,T(d, n) He4, Li7 (d, n) Be8, Li7(d, n) 2α Be9(d, n) В10. Нейтроны с энергией 4,06 MeV реакции Li7(d, n) Be8 до сих пор не были опи саны в литературе. Они соответствуют уровн ю 11,7 MeV в ядре Be2, известному из других ядерных реакц ий.
    Notes: Abstract A description is given of a fast neutron spectrometer, based on the principle of measuring the time-of-flight of the neutrons. Neutron bursts are formed in a target by deflection of the ion beam of an accelerator by a radio-frequency voltage on the deflector. The time-of-flight of neutrons is measured by a slow-fast coincidence system with fast coincidence on the measuring line. The spectrometer was used to measure the neutron spectra of the reactions D(d, n)He3, T(d, n)He4, Li7(d, n)Be8, Li7(d, n)2α, Be9(d, n)B10. Neutrons with energy 4·06 MeV from the reaction Li7(d, n)Be8 have not yet been reported in the literature. They correspond to the 11·7 MeV level in the nucleus Be8, known from other nuclear reactions.
    Type of Medium: Electronic Resource
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