Spectrometric response of large volume CdZnTe coplanar detectors

González, R.; Pérez, J. M.; Vela, O.; Burgos, E. de; Oller, J.C.; Gostilo, V.

doi:10.1109/tns.2005.856887

Cited by 10 publications

(8 citation statements)

References 14 publications

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“…6,7 There have also been studies that have investigated the influence of temperature on electron mobility within the crystal. 8 In addition, there is some experimental information in the literature that supports the theory that temperature significantly affects CZT detector performance. 2,9 According to Greaves et al, 10 there is significant degradation in detector performance on both sides of 0°C, where the pulser remains mostly unaffected by temperature.…”

Section: Introductionmentioning

confidence: 89%

Atmospheric Effects on the Performance of CdZnTe Single-Crystal Detectors

Washington

Teague²,

Duff

et al. 2010

Journal of Elec Materi

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The production of high-quality ternary single-crystal materials for radiation detectors has progressed over the past 15 years. One of the more common materials being studied is CdZnTe (CZT), which can be grown using several methods to produce detector-grade materials. The work presented herein examines the effects of environmental conditions including temperature and humidity on detector performance [full-width at half-maximum (FWHM)] using the single pixel with guard detector configuration. The effects of electrical probe placement, reproducibility, and aging are also presented.

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Section: Introductionmentioning

confidence: 89%

Atmospheric Effects on the Performance of CdZnTe Single-Crystal Detectors

Washington

Teague²,

Duff

et al. 2010

Journal of Elec Materi

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“…The two shaper outputs (cathode and pixel) were connected to the multiparametric multichannel analyzer described in [13], in which dual parametric studies were carried out. Considering the maximum amplitude of the cathode signal divided by the maximum amplitude of the pixel signal (CIA) as an estimate of the depth of interaction, depth sensing studies were carried out by dividing the detector thickness in 20 virtual discrete slices.…”

Section: A Crystal Characterizationmentioning

confidence: 99%

Recent developments on high spatial resolution CdZnTe pixel detectors

Pérez

2008

2008 IEEE Nuclear Science Symposium Conference Record

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“…Hence, in recent years, CdZnTe detectors have been commonly used in medicine, environmental remediation, and physics research [7][8][9]. The spectroscopic performances of large-volume coplanar grid CdZnTe detectors have great potential in gamma-ray spectroscopy due to their mainly improved energy resolution [10]. In parallel with technological developments, larger-volume crystals have been grown, thus providing higher detection effi ciency of gamma rays and neutrons.…”

Section: Introductionmentioning

confidence: 99%

Investigation of thermal neutron detection capability of a CdZnTe detector in a mixed gamma-neutron radiation field

et al. 2018

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The aim of this study was to investigate the thermal neutron measurement capability of a CdZnTe detector irradiated in a mixed gamma-neutron radiation field. A CdZnTe detector was irradiated in one of the irradiation tubes of a 241Am-Be source unit to determine the sensitivity factors of the detector in terms of peak count rate (counts per second [cps]) per neutron flux (in square centimeters per second) [cps/neutron·cm−2·s−1]. The CdZnTe detector was covered in a 1-mm-thick cadmium (Cd) cylindrical box to completely absorb incoming thermal neutrons via 113Cd(n,γ) capture reactions. To achieve, this Cd-covered CdZnTe detector was placed in a well-thermalized neutron field (f-ratio = 50.9 ± 1.3) in the irradiation tube of the 241Am-Be neutron source. The gamma-ray spectra were acquired, and the most intense gamma-ray peak at 558 keV (0.74 γ/n) was evaluated to estimate the thermal neutron flux. The epithermal component was also estimated from the bare CdZnTe detector irradiation because the epithermal neutron cutoff energy is about 0.55 eV at the 1-mm-thick Cd filter. A high-density polyethylene moderating cylinder box can also be fitted into the Cd filter box to enhance thermal sensitivity because of moderation of the epithermal neutron component. Neutron detection sensitivity was determined from the measured count rates from the 558 keV photopeak, using the measured neutron fluxes at different irradiation positions. The results indicate that the CdZnTe detector can serve as a neutron detector in mixed gamma-neutron radiation fields, such as reactors, neutron generators, linear accelerators, and isotopic neutron sources. New thermal neutron filters, such as Gd and Tb foils, can be tested instead of the Cd filter due to its serious gamma-shielding effect.

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Spectrometric response of large volume CdZnTe coplanar detectors

Cited by 10 publications

References 14 publications

Atmospheric Effects on the Performance of CdZnTe Single-Crystal Detectors

Atmospheric Effects on the Performance of CdZnTe Single-Crystal Detectors

Recent developments on high spatial resolution CdZnTe pixel detectors

Investigation of thermal neutron detection capability of a CdZnTe detector in a mixed gamma-neutron radiation field

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