首页> 美国政府科技报告 >THE TRANSMISSION OF NEUTRONS AND GAMMA-RAYS THROUGH AIR SLOTS PART Ⅱ. THE TRANSMISSION OF NEUTRONS THROUGH STRAIGHT SLOTS IN WATER
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THE TRANSMISSION OF NEUTRONS AND GAMMA-RAYS THROUGH AIR SLOTS PART Ⅱ. THE TRANSMISSION OF NEUTRONS THROUGH STRAIGHT SLOTS IN WATER

机译:通过空气槽传输中子和伽马射线第二部分。通过水中直槽的中子传输

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In an investigation such as this it would be desireable to take both fast and slow neutron data over the slots for the entire di¬mensional spectrum. However, a serious limitation is imposed by the gamma-ray' fluxes present on the use of the only available fast neutron detector;i.e., a Hurst-type dosimeter. This restricts its use to the longer slots. It was decided, therefore, that thermal neutron detectors be employed over the entire range of slot dimensions and that some checks be made, when possible, with the fast neutron dosimeter. A good correlation should not be expected, a priori, for those regions throughout which the thermal neutron portion of the spectrum is not in equilibrium with the high energy part.

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