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公开(公告)号：US4456823A
公开(公告)日：1984-06-26
申请号：US322442
申请日：1981-11-18
CPC分类号： G01D18/00
摘要： A mixed gamma emitting gas standard in the form of a multiple isotope standard in a glass sphere which can be used to calibrate a gamma spectrometer system for gas counting in a wide energy range and without the need for any additional standards. Total and partial transfers of gas standard material to counting containers without leakage is enabled. The mixed gas standard is contained in a spherical vial equipped with ground glass stopcocks and a septum port in one tubular arm separated from the spherical vial by one stopcock. A gas transfer syringe, venting needle, assorted septa, and a length of hose are included with the spherical vial assembly to enable accurate volumetric transfers to several different gas counting geometries.
摘要翻译： 玻璃球中多重同位素标准形式的混合伽马发射气体标准，可用于校准伽马光谱仪系统，用于在广泛能量范围内进行气体计数，无需任何其他标准。 将气体标准物质全部和部分转移给无泄漏的计数容器。 混合气体标准品包含在装有磨玻璃旋塞阀的球形小瓶和一个管状臂中的隔膜口中，该管状臂通过一个旋塞与球形小瓶分离。 球形小瓶组件包括气体输送注射器，通气针，各种隔片和一段长度的软管，以实现精确的体积转移到几种不同的气体计数几何形状。
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2.发明授权
公开(公告)号：US4430258A
公开(公告)日：1984-02-07
申请号：US267802
申请日：1981-05-28
IPC分类号： G21G4/04
CPC分类号： G21G4/04 , Y10T436/10
摘要： Method of producing liquid equivalent solid gamma ray calibration standards comprising the steps of adding a first organic solvent to a calibrated aqueous solution of radioactive material, either in the form of a single isotope or mixed isotopes, to form a first solution; mixing the first solution with a polymerizible resin dissolved in a second organic solvent together with a hardening catalyst to form a second solution; and curing the second solution. With isotope standards requiring highly acidic conditions, a stabilizing agent is added to the first solvent to complex with metal and hydrogen ions so as to prevent plate-out.
摘要翻译： 制备液体当量固体γ射线校准标准品的方法，包括以下步骤：将第一有机溶剂加入经过校准的放射性物质的水溶液，其形式为单一同位素或混合同位素，以形成第一溶液; 将第一溶液与溶解在第二有机溶剂中的可聚合树脂与硬化催化剂一起混合以形成第二溶液; 并固化第二溶液。 对于需要高酸性条件的同位素标准，将稳定剂加入到第一溶剂中以与金属和氢离子复合，以防止析出。
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