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首页> 外文期刊>Review of Scientific Instruments >An apparatus for studying scintillator properties at high isostatic pressures
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An apparatus for studying scintillator properties at high isostatic pressures

机译：用于研究高等静压下闪烁体特性的设备

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We describe the design and operation of a unique hydraulic press for the study of scintillator materials under isostatic pressure. This press, capable of developing a pressure of a gigapascal, consists of a large sample chamber pressurized by a two-stage hydraulic amplifier. The optical detection of the scintillation light emitted by the sample is performed, through a large aperture optical port, by a photodetector located outside the pressure vessel. In addition to providing essential pressure-dependent studies on the emission characteristics of radioluminescent materials, this apparatus is being developed to elucidate the mechanisms behind the recently observed dependency of light-yield nonproportionality on electronic band structure. The variation of the light output of a Tl:CsI crystal under 511-keV gamma excitation and hydrostatic pressure is given as an example.
机译：我们描述了用于研究等静压下闪烁体材料的独特液压机的设计和操作。该压力机能够产生千兆帕斯卡的压力，它由一个大的样品室组成，该样品室由两级液压放大器加压。样品发出的闪烁光的光学检测是通过大口径光学端口，通过位于压力容器外部的光电探测器进行的。除了提供有关放射性发光材料发射特性的基本压力相关研究之外，该设备的开发还旨在阐明最近观察到的光产率与电子能带比例不相关的机理。例如，给出了在511keV伽玛激发和静水压力下Tl：CsI晶体的光输出变化。

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