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X-ray Optics and Instrumentation最新文献

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Thin Shell, Segmented X-Ray Mirrors 薄壳，分段x射线镜
X-ray Optics and Instrumentation Pub Date : 1900-01-01 DOI: 10.1155/2010/412323
R. Petre
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引用次数: 23
Kirkpatrick-Baez (KB) and Lobster Eye (LE) Optics for Astronomical and Laboratory Applications Kirkpatrick-Baez (KB)和龙虾眼(LE)光学的天文和实验室应用
X-ray Optics and Instrumentation Pub Date : 1900-01-01 DOI: 10.1155/2010/139148
R. Hudec
{"title":"Kirkpatrick-Baez (KB) and Lobster Eye (LE) Optics for Astronomical and Laboratory Applications","authors":"R. Hudec","doi":"10.1155/2010/139148","DOIUrl":"https://doi.org/10.1155/2010/139148","url":null,"abstract":"Most of grazing incidence (reflective) X-ray imaging systems used in astronomy and in other (laboratory) applications are based on the \u0000Wolter 1 (or modified) arrangement. But there were proposed also other designs and configurations, which are considered for future applications for both in laboratory and (finitely) in space. The Kirkpatrick-Baez (KB) lenses as well as various types of Lobster-Eye (LE) optics and MCP/Micropore optics serve as an example. Analogously to Wolter lenses, the X-rays are mostly reflected twice in these systems to create focal images. The KB systems have already found wide \u0000usage in laboratory and synchrotron, both application are reviewed and discussed in detail in this paper. While this paper focuses on future possible applications of non-Wolter grazing incidence systems in space and astronomy, we also discuss in detail applications in other areas of science, where (in contrary to astronomy) some of these systems have demonstrated their advantages.","PeriodicalId":193128,"journal":{"name":"X-ray Optics and Instrumentation","volume":"15 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128805893","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 23
Multi-MeV Flash Radiography in Shock Physics Experiments: Specific Assemblages of Monolithic Scintillating Crystals for Use in CCD-Based Imagers 冲击物理实验中的多mev闪光射线照相:用于基于ccd的成像仪的单片闪烁晶体的特定组合
X-ray Optics and Instrumentation Pub Date : 1900-01-01 DOI: 10.1155/2010/156984
D. Partouche-Sebban, I. Abraham, S. Lauriot, C. Missault
{"title":"Multi-MeV Flash Radiography in Shock Physics Experiments: Specific Assemblages of Monolithic Scintillating Crystals for Use in CCD-Based Imagers","authors":"D. Partouche-Sebban, I. Abraham, S. Lauriot, C. Missault","doi":"10.1155/2010/156984","DOIUrl":"https://doi.org/10.1155/2010/156984","url":null,"abstract":"We have developed a new CCD-based radiographic camera called CrystalEyeCam for use in shock physics experiments: it is composed of two turning mirrors and an objective to relay the (visible) image from a scintillator assembly to a highly sensitive, low noise CCD camera. The objective was specifically developed to match our needs and has few chromatic and geometric aberrations and high photometric performance. The scintillator assembly is constructed using a specific (patented) technique of assembling monolithic scintillating crystals. It replaces the segmented scintillator previously used at our facility and produces higher quality images (better resolution and no segmentation). The sensitivity, noise level, detection threshold and resolution of CrystalEyeCam were measured using an 18-MeV-bremsstrahlung spectrum, filtered with 10 cm of lead, and two 1 6 5 m m × 1 6 5 m m BGO assemblies: 20 and 30 mm in thickness, respectively. In particular, with the 30 mm-thick BGO assembly, the measured detection threshold of the imager (at S N R 0 = 2 ) is 1  μGy(air) and its resolution is ~1 mm. For 4-MeV incident photons, the estimated (energy) stopping power of the scintillator is 41%. The scintillator assembly thus proved to be a cheaper, effective alternative to segmented scintillators for use in CrystalEyeCam.","PeriodicalId":193128,"journal":{"name":"X-ray Optics and Instrumentation","volume":"10 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"120957699","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 13
X-Ray Focusing: Techniques and Applications x射线聚焦:技术与应用
X-ray Optics and Instrumentation Pub Date : 1900-01-01 DOI: 10.1155/2010/841391
A. Khounsary, S. O’Dell, G. Ice
{"title":"X-Ray Focusing: Techniques and Applications","authors":"A. Khounsary, S. O’Dell, G. Ice","doi":"10.1155/2010/841391","DOIUrl":"https://doi.org/10.1155/2010/841391","url":null,"abstract":"This Special Issue of X-Ray Optics and Instrumentation comprises ten review papers and six research articles, which collectively offer a broad overview of X-ray focusing techniques and applications in laboratory measurements, in synchrotron beamlines, and in X-ray astronomy. Focusing enables not only more intense illumination for reduced exposure time and higher signal-to-noise ratio, but higher spatial resolution through true imaging. Although X-ray focusing is accomplished through the application of some basic physical principles, such as reflection (mirrors), refraction (lenses), and diffraction (crystals or zone plates), stringent performance requirements coupled with physical, mechanical, environmental, and manufacturability imperatives or limitations make the task technically challenging. The diverse X-ray focusing techniques and applications covered in this Volume provide a glimpse into the scope, challenges, and future of this expanding field.","PeriodicalId":193128,"journal":{"name":"X-ray Optics and Instrumentation","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130951935","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
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