Results 71 to 80 of about 6,570 (187)

Forward Diffracted Parametric X Radiation From a Thick Tungsten Single Crystal at 855 MeV Electron Energy [PDF]

, 2006
Features of forward diffracted Parametric X-Radiation (PXR) were investigated at experiments with the 855 MeV electron beam of the Mainz Microtron MAMI employing a 410 micrometer thick tungsten single crystal.
Backe, H., Gogolev, A. S., Kunz, P., Lauth, W., Potylitsyn, A. P., Scharafutdinov, A. F.   +5 more
core   +2 more sources

Light‐Induced Surface Recombination Suppression, Carrier Lifetime Improvement, and Deep Defect Formation in Lead Halide Perovskites

Laser &Photonics Reviews, Volume 19, Issue 18, September 18, 2025.
Lead halide perovskites exhibit significant potential for optoelectronic applications, yet their instability under illumination remains a challenge. This study investigates light‐induced changes in CH₃NH₃PbBr₃ single crystals, revealing enhanced charge carrier collection due to reduced surface recombination and increased hole lifetime.
Katarína Pekárková, Roman Grill, Martin Ledinský, Lucie Landová, Zdeněk Remeš, Eduard Belas, Petr Praus, Aleš Vlk, Jakub Pekárek, Neda Neykova   +9 more
wiley   +1 more source

A Decade of Lead Halide Perovskites for Direct‐Conversion X‐ray and Gamma Detection: Technology Readiness Level and Challenges

Advanced Materials, Volume 37, Issue 27, July 10, 2025.
This review summarizes the first decade of research on lead halide perovskite (LHP)‐based X‐ray and gamma‐ray radiation detectors, emphasizing their exceptional detection properties, advances in synthesis, processing, and device architectures, and outlines current challenges regarding achieved Technology Readiness Levels (TRLs).
Kostiantyn Sakhatskyi, Aditya Bhardwaj, Gebhard J. Matt, Sergii Yakunin, Maksym V. Kovalenko   +4 more
wiley   +1 more source

Investigation of charge sharing among electrode strips for a CdZnTe detector [PDF]

, 2001
We have investigated charge sharing among the anode strips of a CdZnTe (CZT) detector using a 30 micrometer collimated gamma-ray beam. We compared the laboratory measurements with the predictions from our modeling of the charge transport within the ...
Barret, Bolotnikov, Du, E Kalemci, He, J.L Matteson, Ramo   +6 more
core   +2 more sources

Noise in CdZnTe detectors

2000 IEEE Nuclear Science Symposium. Conference Record (Cat. No.00CH37149), 2001
Noise in CdZnTe devices with different electrode configurations was investigated. Measurements on devices with guard-ring electrode structures showed that surface leakage current does not produce any significant noise. The parallel white noise component of the devices appeared to be generated by the bulk current alone, even though the surface current ...
Luke, P.N., Amman, M., Lee, J.S., Manfredi, P.F.   +3 more
openaire   +2 more sources

Ambipolar Charge Transport in Perovskite CsPbBr3 γ‐Ray Detectors with Superior Uniformity and Spectral Resolution by Zone Refining Processing

Advanced Science, Volume 12, Issue 26, July 10, 2025.
Zone refining processing has been proposed to achieve ultrahigh purity level in perovskite CsPbBr3 crystals, enabling ambipolar charge transport by enhancing the electron transport properties, thereby resulting in better γ‐ray detector performance with exceptional uniformity and reproducibility.
Bao Xiao, Yuquan Wang, Ning Ding, Haoming Qin, Nannan Shen, Xuchang He, Qihao Sun, Yihui He   +7 more
wiley   +1 more source

High Resistivity of Single Crystal CsPbBr3 Semiconductor for Radiation Detection via Proposed Temperature‐Concentration Balance Method

Advanced Electronic Materials, Volume 11, Issue 11, July 2025.
This study introduces a temperature‐concentration balance (TCB) method to grow high‐quality CsPbBr₃ single crystal with improved phase purity and structural stability. The crystals exhibits a sharp emission peak at 527 nm, narrow full width at half maximum (21.1 nm), and high resistivity (up to 3.97 × 10¹⁰ Ω·cm).
Xuebao Zhang, Qingbo Wang, Ying Gao, Junying Zhang, Youpeng Wu, Peijie Ma, Lin Ma, Jianing Cai, Fenglei Niu, Qiang Zhao, Yunchao Tang, Junwei Bian, Chenming Liang, Chunxia Shen, Zeqian Wu, Fang Liu, Zhiling Hou, Jinxing Cheng   +17 more
wiley   +1 more source

Chargеs collection efficiency in gamma-ray detectors with different electrodes configuration [PDF]

Технологія та конструювання в електронній апаратурі, 2012
The dependence of the charge collection efficiency n in gamma-ray detectors based on CdZnTe on the impurity composition of the material has been investigated. Plane-parallel, cylindrical and spherical electrodes have been considered.
A. I. Kondrik
doaj   +1 more source

Bragg Diffraction Imaging of CdZnTe Single Crystals

Journal of Electronic Materials, 2020
A high-quality CdZnTe single crystal has been imaged with micrometer resolution using monochromatic x-ray Bragg diffraction at the bending magnet (BM)-05 beamline of the European Synchrotron Radiation Facility. Since this material is used to produce substrates for the epitaxial growth of infrared sensitive HgCdTe photon detectors, imaging the defects ...
Yildirim, C., Gout, E., Pagot, A., Caliste, Thi, Baruchel, J., Brellier, D., Ballet, P.   +6 more
openaire   +2 more sources

Quantitative assessment of ohmic‐type CdTe sensor response in a photon‐counting X‐ray imaging detector under continuous 12–49 keV irradiations

Journal of Synchrotron Radiation, Volume 32, Issue 4, Page 951-960, July 2025.
This paper presents the evaluation results of the response of a pixelated photon‐counting detector, equipped with ohmic‐type cadmium telluride sensors, under high‐energy X‐ray irradiations.For several years, photon‐counting X‐ray imaging detectors with cadmium telluride (CdTe) sensors have been used in high‐energy synchrotron experiments.
Fabienne Orsini, Yasuhiko Imai, Takaki Hatsui   +2 more
wiley   +1 more source