ANALYSIS OF CHARGE COLLECTION EFFICIENCY FOR A PLANAR CdZnTe DETECTOR

Infrared reflectance and transmission spectra in II-VI alloys and superlattices

“…Apart from bulk materials, II-VI-based thin films, epilayers, ternary alloys, and superlattice (SL) structures grown on various substrates have presented strong interest in many applications, including photonics, photoconduction, photovoltaic, x-ray detectors for medical imaging, and diagnostics. [48][49][50][51][52] While the high-absorption coefficient of Cd 1−x Zn x Te has made it enviable for room temperature x-ray and γ -ray detectors, the band gap of ∼1.5 eV of CdTe is perfectly matched to the distribution of photons in the solar spectrum for its use in the high-efficiency photovoltaic cells. [53][54][55] Despite the significance of II-VI epilayers, alloys, and low-dimensional systems for optic and photonic applications, [48][49][50][51][52][53][54][55] only a limited number of investigations have been carried out of their basic properties [56][57][58][59][60][61][62][63][64][65][66][67][68] especially the physics behind those characteristics that determine the importance of such materials at a practical level.…”

Determination of the uranium enrichment without calibration standards using a 500 mm3 CdZnTe room temperature detector with a hybrid methodology based on peak ratios method and Monte Carlo counting efficiency simulations

“…Secondly, the socalled physics based peak shape models can be used to determine the net peak areas in poor quality statistics gamma-ray peaks. Such peak shape models explicitly account for poor charge collection properties in a CZT crystal (Park et al, 2007;Kim et al, 2009) and recently have shown to be a promising alternative to traditional tailed Gaussian-based functionals used to approximate the gamma-ray peak shapes (Iwata and Hasegawa, 1999;Sato et al, 2002). A particular advantage of such physics-based peak shape models is in the fact that parametrization is accomplished via the lifetime-mobility products (Sato et al, 2002) and thus is not dependent on the statistical quality of the spectra it is fitted to.…”

Toward utilization of MCNP5 particle track output file for simulation problems in photon spectrometry

“…To [12,[15][16][17] and [18]. A new method for spectrometry simulation that uses MCNP5 software and integrates the Hecht equation is presented in this paper.…”