Gamma ray imagingA coding mask apparatus for gamma rays is provided. The apparatus uses a nested mask in which at least one rotates relative to the other.(FIG.ボードマン,デビッドサーバット,アダムフリン,アリソンプロコポービッチ,デール...
The spatial distribution of a radioactive fluid can be measured indirectly by observing the emerging gamma rays. A method is proposed and analyzed for gamma-ray imaging by stochastic time modulation and cross-correlation. Theoretical comparison is made to collimation and coded aperture techniques in ...
Vertex Detection in a Stack of Si-Drift Detectors for High Resolution Gamma-Ray Imaging Usually the position resolution in imaging applications with gamma rays is limited due to the range of secondary reaction products to a few mm. Here a new ... Walenta, A.H,Brill, A.B,A Castoldi,......
In this context, gamma ray imaging in the 1–10 MeV energy range has lagged by a few decades owing to difficulties in the optimum detector configuration. In fact, gamma rays with energy greater than 1 MeV are difficult to collimate like in the SPECT scanner, whereas the energy is too...
The use of gamma-ray imaging has become established in the nuclear industry, especially in the fields of decommissioning and clean-up, for identifying the origins of elevated gamma dose rates. Since their first use in the mid 1990s, gamma-ray imaging devices, such as the Babcock RadScan, hav...
Novel γ ray imaging methods relying on the Compton effect are described. Ge tracking detectors, e.g. of AGATA-type, employing two-dimensional segmentation, pulse shape analysis and tracking of Compton scattered γ rays show omni-directional position sensitivity. The obtainable angular resolution paire...
Development and manufacture of collimators for gamma ray imagingHIGH-ACCURACY SLIT PATTERNSPRECISION ETHCINGFINITE-ELEMENT DESIGNCOLLIMATORSWe report the development of very fine collimator slit patterns for gamma ray imaging. Astronomical objects emitting gamma rays cannot be imaged in a classical way. ...
The use of a Fresnel zone plate as a coded aperture for imaging incoherent radiation such as gamma rays has been previously reported. The coded image is in many respects similar to a hologram and can be decoded or reconstructed with a coherent optical system. In this paper, the general theor...
This chapter provides a short overview of medical X-ray and gamma-ray imaging modalities, with a focus on high-Z materials in applications as radiation detectors. In most cases, medical X-ray imaging is based on a measurement of attenuation of X-rays by human tissues, with the patient place...
关键词: gamma-rays: survey BATSE 会议名称: The INTEGRAL Universe 会议地点: Munich(DE) 主办单位: School of Physics and Astronomy, University of Southampton, Hampshire, SO17 1BJ, United Kingdom 收藏 引用 批量引用 报错 分享 全部来源 免费下载 求助全文 掌桥科研 arXiv.org (全网免费下载) arXiv...