Diamond X-ray photodiode for white and monochromatic SR beams
High-purity, single-crystal CVD diamond plates are screened for quality and instrumented into a sensor assembly for quantitative characterization of flux and position sensitivity. Initial investigations have yielded encouraging results and have led to further development. Several limiting complicati...
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Published in | Nuclear instruments & methods in physics research. Section A, Accelerators, spectrometers, detectors and associated equipment Vol. 649; no. 1; pp. 91 - 93 |
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Main Authors | , , , , |
Format | Journal Article |
Language | English |
Published |
Netherlands
Elsevier B.V
01.09.2011
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Subjects | |
Online Access | Get full text |
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Summary: | High-purity, single-crystal CVD diamond plates are screened for quality and instrumented into a sensor assembly for quantitative characterization of flux and position sensitivity. Initial investigations have yielded encouraging results and have led to further development. Several limiting complications are observed and discussed, as well as mitigations thereof. For example, diamond quality requirements for X-ray diodes include low nitrogen impurity and crystallographic defectivity. Thin electrode windows and electronic readout performance are ultimately also critical to device performance. Promising features observed so far from prototype devices include calculable responsivity, flux linearity, position sensitivity and timing performance. Recent results from testing in high-flux and high-speed applications are described. |
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Bibliography: | ObjectType-Article-1 SourceType-Scholarly Journals-1 ObjectType-Feature-2 content type line 23 ObjectType-Article-2 ObjectType-Feature-1 BNL-96570-2011-JA DOE-OFFICE OF BIOLOGICAL & ENVIRONMENTAL RESEARCH DE-AC02-98CH10886 smedley@bnl.gov, affiliation and postal address: Instrumentation Division, Brookhaven National Laboratory, Bldg. 535-B, Upton, NY 11973-5000 USA emuller@bnl.gov, affiliation: Department of Physics and Astronomy, Stony Brook University, postal address: Brookhaven National Laboratory, Bldg. 535-B, Upton, NY 11973-5000 USA heroux@bnl.gov, affiliation and postal address: Biology Department, Brookhaven National Laboratory, Bldg. 463, Upton, NY 11973-5000 USA jbohon@bnl.gov, affiliation: Center for Synchrotron Biosciences, Case Western Reserve University, postal address: Brookhaven National Laboratory, Bldg. 725-X3B, Upton, NY 11973-5000 USA |
ISSN: | 0168-9002 1872-9576 |
DOI: | 10.1016/j.nima.2010.11.135 |