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A characteristic of every inorganic scintillator crystal is its light yield, i.e., the amount of emitted scintillation photons per unit of energy deposited in the crystal. Light yield is known to be usually non-linear with energy, which…

仪器与探测器 · 物理学 2023-08-15 R. Campana , C. Evola , C. Labanti , L. Ferro , M. Moita , E. Virgilli , E. J. Marchesini , F. Frontera , P. Rosati

Scintillator-based X-ray imaging detectors are pivotal in numerous scientific and practical domains, including medical imaging, and security monitoring. Recent advancements have spurred interest in 4D X-ray imaging using synchrotron…

Detection of photons with scintillating inorganic crystals in the high-energy range (> 0.1 MeV) will be discussed, making a comparison with other available methods. Energy resolutions up to 2 % at 662 keV and fast decay time of the order of…

仪器与探测器 · 物理学 2025-05-13 M. Bonesini

In recent experiments, inorganic scintillators have been used to study the decays of exotic nuclei, providing an alternative to silicon detectors and enabling measurements that were previously impossible. However, proper use of these…

GAGG(Ce) is a novel scintillator with a fast response and high light output without a hygroscopic nature. It is expected to be a useful detector for charged particles at high-counting rates. However, the response of the GAGG(Ce)…

仪器与探测器 · 物理学 2021-10-14 T. Furuno , A. Koshikawa , T. Kawabata , M. Itoh , S. Kurosawa , T. Morimoto , M. Murata , K. Sakanashi , M. Tsumura , A. Yamaji

This paper is the first report describing how the concentrations of silicon and boron govern the cryogenic scintillation properties of n-type GaAs. It shows that valence band holes are promptly trapped on radiative centers and then combine…

We measure and explain scintillator non-proportionality and gamma quenching of CaWO4 at low energies and low temperatures. Phonons that are created following an interaction in the scintillating crystal at temperatures of 15mK are used for a…

Among the top priorities for high-energy astronomy in the coming decade are sensitive surveys in the hard X-ray/soft \gamma-ray (10-600 keV) and medium-energy \gamma-ray (0.2-80 MeV) bands. Historically, observations in the soft and medium…

天体物理仪器与方法 · 物理学 2013-02-26 Alexei Ulyanov , Lorraine Hanlon , Sheila McBreen , Suzanne Foley , David Byrne

We summarize the spectral characteristics of a sample of 22 bright gamma-ray bursts detected with the gamma-ray burst sensors aboard the satellite Ginga. This instrument employed a proportional and scintillation counter to provide…

天体物理学 · 物理学 2007-05-23 T. E. Strohmayer , E. E. Fenimore , T. Murakami , A. Yoshida

The multi-TeV energy region of the cosmic-ray spectra has been recently explored by direct detection experiments that used calorimetric techniques to measure the energy of the cosmic particles. Interesting spectral features have been…

A compact gamma-ray detector module was developed and characterized for spectroscopic applications across a wide energy range. The detector comprises a 4x4 array of silicon photomultipliers (SiPMs, Hamamatsu MPPC S13360-3050) coupled with…

仪器与探测器 · 物理学 2025-10-01 S. Nuruyev , G. Ahmadov , D. Berikov , M. Holik , F. Ahmadov , A. Sadigov , R. Akbarov , J. Naghiyev , I. Nuruyev , A. Mammadli

The HERMES (High Energy Rapid Modular Ensemble of Satellites) Pathfinder mission aims to develop a constellation of nanosatellites to study astronomical transient sources, such as gamma-ray bursts, in the X and soft $\gamma$ energy range,…

GAGG:Ce (Cerium-doped Gadolinium Aluminium Gallium Garnet) is a promising new scintillator crystal. A wide array of interesting features, such as high light output, fast decay times, almost non-existent intrinsic background and robustness,…

The recent discovery that GaAs(Si,B) is a bright cryogenic scintillator with no apparent afterglow offers new opportunities for detecting rare, low-energy, electronic excitations from interacting dark matter. This paper presents Monte Carlo…

仪器与探测器 · 物理学 2024-09-04 Stephen E. Derenzo

Radiation detection is vital for space, medical imaging, homeland security, and environmental monitoring applications. In the past, the Monte Carlo radiation transport toolkit, Geant4, has been employed to enable the effective development…

仪器与探测器 · 物理学 2024-10-14 Lysander Miller , Airlie Chapman , Katie Auchettl , Jeremy M. C. Brown

Measurements have been performed of scintillation light intensities emitted from various inorganic scintillators irradiated with low-energy beams of highly-charged ions from an electron beam ion source (EBIS) and an electron cyclotron…

原子物理 · 物理学 2008-11-26 M. Vogel , D. F. A. Winters , H. Ernst , H. Zimmermann , O. Kester

The high scintillation luminosity of n-type GaAs at 10K is surprising because (1) with a refractive index of about 3.5, escape is inhibited by total internal reflection and (2) narrow-beam experiments at 90K report infrared absorption…

仪器与探测器 · 物理学 2022-06-01 Stephen Derenzo

Scintillators are widely used in radiation detection, with continuous advancements enhancing their performance and developing new materials. This study presents a custom experimental setup for the characterization of crystal scintillators…

仪器与探测器 · 物理学 2025-06-17 L. Gironi , S. Dell'Oro , C. Gotti , N. Manenti , E. Mazzola , M. Nastasi , D. Peracchi

We constructed a gamma-ray detector by combining two types of scintillator array detectors with an MPPC array and evaluated the spectral performance by reading out the signals from the MPPC with a low-power integrated circuit (ASIC)…

仪器与探测器 · 物理学 2021-09-16 Daiki Nobashi , Kazutaka Yamaoka , Hiroyasu Tajima , Kazuya Ito

The proportional counter and scintillator on Ginga provided unprecented spectral coverage of GRBs, from 2 - 400 keV. Below 20 keV we find evidence for a positive spectral number index in approximately 40% of our burst sample, with some…

天体物理学 · 物理学 2009-10-30 T. E. Strohmayer , E. E. Fenimore , T. Murakami , Y. Yoshida
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