Measurement of bone mineral density in space

Charles, Harry K.; Beck, T. J.; Feldmesser, Howard S.; Magee, Thomas C.; Chen, M.H.; Spisz, Thomas S.

doi:10.1109/iembs.2002.1053222

Cited by 4 publications

(1 citation statement)

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“…A wide range of applications can benefit from the combination of good position resolution and multi-energy photon counting. Examples can be found in medical imaging where the radiation dose to the patient must be minimized, as in the case of dual-energy absorptiometry [1][2][3][4][5]; in security applications where fast real-time measurements are needed, as in the case of multi-energy baggage inspection [6,7]; and in industrial applications where there is an increasing interest in fast non-invasive measurement techniques [8,9].…”

Section: Introductionmentioning

confidence: 99%

ASIC with Multiple Energy Discrimination for High-Rate Photon Counting Applications

Geronimo¹,

Dragone²,

Grosholz³

et al. 2006

2006 IEEE Nuclear Science Symposium Conference Record

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An ASIC for high rate photon counting measurements with multiple energy discrimination is presented. Optimized for pixelated CdZnTe sensors, the ASIC is composed of 64 channels with low-noise charge preamplification, high-order shaping (40ns minimum peaking time), and five window-discriminators with associated 16-bit counters. An efficient readout scheme allows simultaneous measurement and readout through a 60 MHz 16-bit output bus. The ASIC architecture and experimental results are reported, and the impact of the shaper order on the resolution, ballistic deficit, and pile-up is discussed. strumentation Division, Brookhaven National Laboratory, Upton, NY 1973. J. Grosholz is with the eV PRODUCTS, Div. of 1I-VI Inc., Saxonburg, PA 16056 USA.

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