Synchrotron radiation response characterization of coplanar grid CZT detectors

G. A. Carini; A. E. Bolotnikov; G. S. Camarda; G. W. Wright; G. De Geronimo; D. P. Siddons; R. B. James

doi:10.1109/TNS.2005.856759

Synchrotron radiation response characterization of coplanar grid CZT detectors

G. A. Carini, A. E. Bolotnikov, G. S. Camarda, G. W. Wright, G. De Geronimo, D. P. Siddons, R. B. James

Research output: Contribution to journal › Article › peer-review

17 Scopus citations

Abstract

Commercial 15 × 15 × 7.5 mm ³ coplanar grid CdZnTe detectors were studied on the micron-scale using a collimated high-energy X-ray beam provided by Brookhaven's National Synchrotron Light Source. This powerful tool enables simultaneous studies of detector response uniformity, electronic properties of the material, and effects related to the device's contact pattern and electric field distribution. The availability of a front-end Application Specific Integrated Circuit, developed at Brookhaven's Instrumentation Division, providing low noise amplification of grids and cathode signals, corresponding timing signal and adjustable relative gain, allowed to correlate performance mapping and fluctuations in collected charge. We observed the effect of the strip contacts comprising the coplanar grids on the energy resolution of the coplanar-grid device.

Original language	English
Pages (from-to)	1941-1944
Number of pages	4
Journal	IEEE Transactions on Nuclear Science
Volume	52
Issue number	5 III
DOIs	https://doi.org/10.1109/TNS.2005.856759
State	Published - Oct 2005
Externally published	Yes

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abstract = "Commercial 15 × 15 × 7.5 mm 3 coplanar grid CdZnTe detectors were studied on the micron-scale using a collimated high-energy X-ray beam provided by Brookhaven's National Synchrotron Light Source. This powerful tool enables simultaneous studies of detector response uniformity, electronic properties of the material, and effects related to the device's contact pattern and electric field distribution. The availability of a front-end Application Specific Integrated Circuit, developed at Brookhaven's Instrumentation Division, providing low noise amplification of grids and cathode signals, corresponding timing signal and adjustable relative gain, allowed to correlate performance mapping and fluctuations in collected charge. We observed the effect of the strip contacts comprising the coplanar grids on the energy resolution of the coplanar-grid device.",

author = "Carini, {G. A.} and Bolotnikov, {A. E.} and Camarda, {G. S.} and Wright, {G. W.} and {De Geronimo}, G. and Siddons, {D. P.} and James, {R. B.}",

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AU - Carini, G. A.

AU - Bolotnikov, A. E.

AU - Camarda, G. S.

AU - Wright, G. W.

AU - De Geronimo, G.

AU - Siddons, D. P.

AU - James, R. B.

PY - 2005/10

Y1 - 2005/10

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AB - Commercial 15 × 15 × 7.5 mm 3 coplanar grid CdZnTe detectors were studied on the micron-scale using a collimated high-energy X-ray beam provided by Brookhaven's National Synchrotron Light Source. This powerful tool enables simultaneous studies of detector response uniformity, electronic properties of the material, and effects related to the device's contact pattern and electric field distribution. The availability of a front-end Application Specific Integrated Circuit, developed at Brookhaven's Instrumentation Division, providing low noise amplification of grids and cathode signals, corresponding timing signal and adjustable relative gain, allowed to correlate performance mapping and fluctuations in collected charge. We observed the effect of the strip contacts comprising the coplanar grids on the energy resolution of the coplanar-grid device.

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Synchrotron radiation response characterization of coplanar grid CZT detectors

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