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Cadmium zinc telluride (CdZnTe, CZT) radiation detectors are suitable for a variety of applications, due to their high spatial resolution and spectroscopic energy performance at room temperature. However, state-of-the-art detector systems…

Instrumentation and Detectors · Physics 2016-10-13 P. Födisch , M. Berthel , B. Lange , T. Kirschke , W. Enghardt , P. Kaever

Modern PET systems reach a spatial resolution of 3-10 mm. A disadvantage of this technique is the diffusion of the positron before its decay with a typical range of ca. 1 mm (depending on its energy). This motion and Compton scattering of…

Instrumentation and Detectors · Physics 2012-02-03 C. Lang , D. Habs , P. G. Thirolf , A. Zoglauer

The Cadmium Zinc Telluride Imager (CZTI) onboard AstroSat is designed for hard X-ray imaging and spectroscopy in the energy range of 20 - 100 keV. The CZT detectors are of 5 mm thickness and hence have good efficiency for Compton…

Instrumentation and Methods for Astrophysics · Physics 2021-03-01 Abhay Kumar , Tanmoy Chattopadhyay , Santosh V Vadawale , A. R. Rao , Soumya Gupta , Mithun N. P. S. , Varun Bhalerao , Dipankar Bhattacharya

Cadmium telluride (CdTe) and cadmium zinc telluride (CdZnTe) have been regarded as promising semiconductor materials for hard X-ray and Gamma-ray detection. The high atomic number of the materials (Z_{Cd} =48, Z_{Te} =52) gives a high…

Astrophysics · Physics 2009-11-06 Tadayui Takahashi , Shin Watanabe

Cosmic ray muons passing through matter lose energy from inelastic collisions with electrons and are deflected from nuclei due to multiple Coulomb scattering. The strong dependence of scattering on atomic number Z and the recent…

Computational Physics · Physics 2017-02-01 Stylianos Chatzidakis , Chan K. Choi , Lefteri H. Tsoukalas

We are currently investigating the spatial resolution of highly pixelated Cadmium Zinc Telluride (CZT) detector for imaging applications. A 20 mm {\times} 20 mm {\times} 5 mm CZT substrate was fabricated with 600 {\mu}m pitch pixels (500…

Instrumentation and Detectors · Physics 2015-06-18 Yongzhi Yin , Qi Liu , Dapeng Xu , Ximeng Chen

The distribution of the prompt gamma emissions induced by proton interactions in a target material carries information concerning the proton range and target composition. In order to image prompt gamma we present different approaches. The…

The charge collection properties in different particle sensor materials with respect to the shape of the generated signals, the electric field within the detector, the charge carrier mobility and the carrier lifetime are studied with the…

Instrumentation and Detectors · Physics 2009-11-11 Johannes Fink , Hans Krueger , Philipp Lodomez , Norbert Wermes

PET is a functional imaging technique based on detection of annihilation photons following beta decay producing positrons. In this paper, we present the concept of a new PET system for preclinical applications consisting of a ring of twelve…

Instrumentation and Detectors · Physics 2015-03-19 A. Miceli , P. Amaudruz , F. Benard , D. A. Bryman , L. Kurchaninov , J. P. Martin , A. Muennich , F. Retiere , T. J. Ruth , V. Sossi , A. J. Stoessl

CdZnTe (CZT) is a wide bandgap II-VI semiconductor developed for the spectroscopic detection of X-rays and {\gamma}-rays at room temperature. The Swift Burst Alert Telescope is using an 5240 cm2 array of 2 mm thick CZT detectors for the…

Instrumentation and Methods for Astrophysics · Physics 2011-02-09 Qiang Li , M. Beilicke , Kuen Lee , Alfred Garson , Q. Guo , Jerrad Martin , Y. Yin , P. Dowkontt , G. De Geronimo , I. Jung , H. Krawczynski

Two major challenges in time-of-flight positron emission tomography (TOF-PET) are low spatial resolution and high radioactive dose to the patient, both of which result from limitations in detection technology rather than fundamental…

The next generation of very-short-baseline reactor experiments will require compact detectors operating at surface level and close to a nuclear reactor. This paper presents a new detector concept based on a composite solid scintillator…

The measurement of energy is a fundamental tool used, for example, in exploring the early universe, characterizing particle decay processes, as well as in quantum technology and computing. Some of the most sensitive energy detectors are…

Instrumentation and Detectors · Physics 2024-12-19 András Gunyhó , Kassius Kohvakka , Qi-Ming Chen , Jean-Philippe Girard , Roope Kokkoniemi , Wei Liu , Mikko Möttönen

Gamma-ray and fast-neutron imaging was performed with a novel liquid xenon (LXe) scintillation detector read out by a Gaseous Photomultiplier (GPM). The 100 mm diameter detector prototype comprised a capillary-filled LXe…

Instrumentation and Detectors · Physics 2017-10-04 I. Israelashvili , A. E. C. Coimbra , D. Vartsky , L. Arazi , S. Shchemelinin , E. N. Caspi , A. Breskin

Cadmium Zinc Telluride Imager (CZTI) onboard AstroSat has been a prolific Gamma-Ray Burst (GRB) monitor. While the 2-pixel Compton scattered events (100 - 300 keV) are used to extract sensitive spectroscopic information, the inclusion of…

We studied the application of statistical reconstruction algorithms, namely maximum likelihood and least squares methods, to the problem of event reconstruction in a dual phase liquid xenon detector. An iterative method was developed for…

GRETA, the Gamma-Ray Energy Tracking Array, is an array of highly-segmented HPGe detectors designed to track gamma-rays emitted in beam-physics experiments. Its high detection efficiency and state-of-the-art position resolution make it…

Instrumentation and Detectors · Physics 2021-07-05 Robert Crabbs , I-Yang Lee , Kai Vetter

The Cadmium Zinc Telluride Imager (CZTI) onboard AstroSat, an open detector above $\sim$100 keV, is a promising tool for the investigation of hard X-ray characteristics of $\gamma$-ray pulsars. A custom algorithm has been developed to…

High Energy Astrophysical Phenomena · Physics 2022-12-14 K. G. Anusree , Dipankar Bhattacharya , Varun Bhalerao , Akash Anumarlapudi

The Cadmium Zinc Telluride Imager (CZTI) is a high energy, wide-field imaging instrument on AstroSat. CZT's namesake Cadmium Zinc Telluride detectors cover an energy range from 20 keV to > 200 keV, with 11% energy resolution at 60 keV. The…