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. 2003 May 1;10(Pt 3):287-8.
doi: 10.1107/s0909049503003285. Epub 2003 Apr 25.

Beamstop with integrated X-ray sensor

Paul J Ellis  1 , Aina E Cohen, S Michael Soltis
Affiliations

Beamstop with integrated X-ray sensor

Paul J Ellis et al. J Synchrotron Radiat. .

Abstract

A versatile beamstop with an integrated sensor has been developed at the Stanford Synchrotron Radiation Laboratory (SSRL) using non-specialized components. A diameter of 1.5 mm was achieved using a commercial subminiature surface mount PIN diode (Phillips BAP64) molded into a tungsten epoxy composite cup. The cup is supported on a thin fiberglass arm with printed circuit traces to transmit the signal from the diode. The assembly has an active area of approximately 100 micro m in diameter. As the diode is encapsulated in plastic, the response diminishes with decreasing energy but is still useful at 6 keV.

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