{"title":"用于硬x射线望远镜的轻型屏蔽探测器组合","authors":"H. Griffiths , R.R. Hillier","doi":"10.1016/0167-5087(84)90281-3","DOIUrl":null,"url":null,"abstract":"<div><p>By coupling a simple, passive shield of tin with a thin NaI (Tl) detector the atmospheric background counting rate in the energy range 15–95 keV can be attenuated by a factor of approximately 12.5. Including the weight of the collimator, a telescope built with this combination would have a total surface density of only ∼ 3 g cm<sup>−2</sup>, allowing a sensitive area of ∼ 30 m<sup>2</sup> to be constructed within the normal restrictions of weight on a balloon experiment. To measure the of effectiveness of different types of shielding, the atmospheric gamma radiation was simulated using a tank of water containing radioactive sources.</p></div>","PeriodicalId":100972,"journal":{"name":"Nuclear Instruments and Methods in Physics Research","volume":"225 2","pages":"Pages 418-421"},"PeriodicalIF":0.0000,"publicationDate":"1984-08-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/0167-5087(84)90281-3","citationCount":"1","resultStr":"{\"title\":\"A lightweight shield-detector combination for use in hard X-ray telescopes\",\"authors\":\"H. Griffiths , R.R. Hillier\",\"doi\":\"10.1016/0167-5087(84)90281-3\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><p>By coupling a simple, passive shield of tin with a thin NaI (Tl) detector the atmospheric background counting rate in the energy range 15–95 keV can be attenuated by a factor of approximately 12.5. Including the weight of the collimator, a telescope built with this combination would have a total surface density of only ∼ 3 g cm<sup>−2</sup>, allowing a sensitive area of ∼ 30 m<sup>2</sup> to be constructed within the normal restrictions of weight on a balloon experiment. To measure the of effectiveness of different types of shielding, the atmospheric gamma radiation was simulated using a tank of water containing radioactive sources.</p></div>\",\"PeriodicalId\":100972,\"journal\":{\"name\":\"Nuclear Instruments and Methods in Physics Research\",\"volume\":\"225 2\",\"pages\":\"Pages 418-421\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"1984-08-15\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"https://sci-hub-pdf.com/10.1016/0167-5087(84)90281-3\",\"citationCount\":\"1\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Nuclear Instruments and Methods in Physics Research\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://www.sciencedirect.com/science/article/pii/0167508784902813\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Nuclear Instruments and Methods in Physics Research","FirstCategoryId":"1085","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/0167508784902813","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 1
摘要
通过将一个简单的无源锡屏蔽与一个薄的NaI (Tl)探测器耦合，可以将15-95 keV能量范围内的大气背景计数率衰减约12.5倍。包括准直器的重量在内，用这种组合建造的望远镜的总表面密度只有~ 3 g cm−2，允许在气球实验的正常重量限制下建造~ 30 m2的敏感区域。为了测量不同类型屏蔽的有效性，使用一个装有放射源的水箱模拟了大气伽马辐射。
A lightweight shield-detector combination for use in hard X-ray telescopes
By coupling a simple, passive shield of tin with a thin NaI (Tl) detector the atmospheric background counting rate in the energy range 15–95 keV can be attenuated by a factor of approximately 12.5. Including the weight of the collimator, a telescope built with this combination would have a total surface density of only ∼ 3 g cm−2, allowing a sensitive area of ∼ 30 m2 to be constructed within the normal restrictions of weight on a balloon experiment. To measure the of effectiveness of different types of shielding, the atmospheric gamma radiation was simulated using a tank of water containing radioactive sources.
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