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Development of Diamond-Based X-ray Detection for High Flux Beamline Diagnostics

Published online by Cambridge University Press:  31 January 2011

Jen Bohon ,
John Smedley ,
Erik M. Muller  and
Jeffrey W. Keister
Jen Bohon
Affiliation:
jbohon@bnl.gov, Case Western Reserve University, Center for Synchrotron Biosciences, Upton, New York, United States
John Smedley
Affiliation:
smedley@bnl.gov, Brookhaven National Laboratory, Instrumentation, Upton, New York, United States
Erik M. Muller
Affiliation:
emuller@bnl.gov, Stony Brook University, Stony Brook, New York, United States
Jeffrey W. Keister
Affiliation:
jkeister@bnl.gov, Brookhaven National Laboratory, NSLS-II, Upton, New York, United States
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Abstract

High quality single crystal and polycrystalline CVD diamond detectors with platinum contacts have been tested at the white beam X28C beamline at the National Synchrotron Light Source under high-flux conditions. The voltage dependence of these devices has been measured under DC and pulsed-bias conditions, establishing the presence or absence of photoconductive gain in each device. Linear response has been achieved over eleven orders of magnitude when combined with previous low flux studies. Temporal measurements with single crystal diamond detectors have resolved the ns scale pulse structure of the NSLS.

Keywords

diamonddevicesphotoconductivity

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