Segmented Monolithic Germanium Detector Arrays for X-ray Absorption Spectroscopy

Hull, Dr. Ethan L.

PHDs, Oak Ridge, TN

关键词: X-Ray;    46 Instrumentation Related To Nuclear Science And Technology;    X-Ray Spectroscopy;    Absorption Spectroscopy;    37 Inorganic, Organic, Physical And Analytical Chemistry;   

DOI  :  10.2172/937096
RP-ID  :  DOE/ER/84401-1 Final Report
RP-ID  :  FG02-06ER84401
RP-ID  :  937096

美国|英语

来源: UNT Digital Library

【 摘 要 】

The experimental results from the Phase I effort were extremely encouraging. During Phase I PHDs Co. made the first strides toward a new detector technology that could have great impact on synchrotron x-ray absorption (XAS) measurements, and x-ray detector technology in general. Detector hardware that allowed critical demonstration measurements of our technology was designed and fabricated. This new technology allows good charge collection from many pixels on a single side of a multi-element monolithic germanium planar detector. The detector technology provides “dot-like” collection electrodes having very low capacitance. The detector technology appears to perform as anticipated in the Phase I proposal. In particular, the 7-pixel detector studied showed remarkable properties; making it an interesting example of detector physics. The technology is enabled by the use of amorphous germanium contact technology on germanium planar detectors. Because of the scalability associated with the fabrication of these technologies at PHDs Co., we anticipate being able to supply larger detector systems at significantly lower cost than systems made in the conventional manner.