Study of the charge collection efficiency of CdZnTe radiation detectors

Nemirovsky, Y.; Ruzin, A.; Asa, G.; Gorelik, Julia

doi:10.1007/bf02655012

Cited by 74 publications

(24 citation statements)

References 3 publications

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“…The measured data points have been fitted using the Hecht equation which for an induced charge signal due to the drift of electrons alone is reduced to [12] …”

Section: Average Charge Collection Efficiency Measurements and Hecht mentioning

confidence: 99%

Charge transport properties of CdMnTe radiation detectors

Rafiei

Boardman

Reinhard

et al. 2012

EPJ Web of Conferences

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Abstract. Growth, fabrication and characterization of indium-doped cadmium manganese telluride (CdMnTe) radiation detectors have been described. Alpha-particle spectroscopy measurements and time resolved current transient measurements have yielded an average charge collection efficiency approaching 100 %. Spatially resolved charge collection efficiency maps have been produced for a range of detector bias voltages. Inhomogeneities in the charge transport of the CdMnTe crystals have been associated with chains of tellurium inclusions within the detector bulk. Further, it has been shown that the role of tellurium inclusions in degrading charge collection is reduced with increasing values of bias voltage. The electron drift velocity was calculated from the rise time distribution of the preamplifier output pulses at each measured bias. From the dependence of drift velocity on applied electric field the electron mobility was found to be µ n = (718 ± 55) cm 2 /Vs at room temperature.

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“…The measured data points have been fitted using the Hecht equation which for an induced charge signal due to the drift of electrons alone is reduced to [12] …”

Section: Average Charge Collection Efficiency Measurements and Hecht mentioning

confidence: 99%

Charge transport properties of CdMnTe radiation detectors

Rafiei

Boardman

Reinhard

et al. 2012

EPJ Web of Conferences

View full text Add to dashboard Cite

show abstract

“…The samples were mechanically polished using a I pm deionized water-based slurry of Alz03 which wa followed by decreasing alumina particle sizes of 0. the drift of electrons alone is reduced to [18] 4 Spatially resolved charge collection efficiency measurements…”

Section: Crystals and Detector Fabricationmentioning

confidence: 99%

Charge transport properties of CdMnTe radiation detectors

Kim¹,

Rafiel²,

Boardman³

et al. 2012

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“…The surrounding air and container were modeled to account for fringe effects. Following Nemirovsky (1996), the dielectric constant of CdZnTe was assumed to be 11. Because the electrodes are not centered on the face of the detector, the weighting potential for circuit A varies across the detector (from left to right).…”

Section: Response Functions For a Coplanar-grid Detectormentioning

confidence: 99%