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Semiconductor detectors made of CdTe crystal have high gamma-ray detection efficiency and are usable at room temperature. However, the energy resolution of CdTe detectors for MeV gamma-rays is rather poor because of the significant hole…

Instrumentation and Detectors · Physics 2011-12-22 T. Kikawa , A. K. Ichikawa , T. Hiraki , T. Nakaya

The optical and scintillation properties of undoped, Si-doped, and Si, B co-doped GaAs samples were studied. The light yield specification and X-ray luminescence of GaAs over a wide IR region by using Si and InGaAs photodetectors are…

Instrumentation and Detectors · Physics 2019-04-23 S. Vasiukov , F. Chiossi , C. Braggio , G. Carugno , F. Moretti , E. Bourret , S. Derenzo

We investigated the thermal stability of scintillation and the luminescence performances of (La, Gd)${}_{2}$Si${}_{2}$O${}_{7}$ single crystals at various Ce concentrations. We prepared (La${}_{0.25-x}$, Ce${}_{x}$,…

Localisation of gamma-ray interaction points in monolithic scintillator crystals can simplify the design and improve the performance of a future Compton telescope for gamma-ray astronomy. In this paper we compare the position resolution of…

Instrumentation and Methods for Astrophysics · Physics 2017-01-20 Alexei Ulyanov , Oran Morris , Oliver J. Roberts , Isaac Tobin , Lorraine Hanlon , Sheila McBreen , David Murphy , Nick Nelms , Brian Shortt

In recent years, a number of purpose-built scintillator-based polarimeters have studied bright astronomical sources for the first time in the hard X-ray band (tens to hundreds of keV). The addition of polarimetry can help data…

Instrumentation and Methods for Astrophysics · Physics 2019-08-08 Rakhee Kushwah , Nirmal K. Iyer , Mózsi Kiss , Theodor A. Stana , Mark Pearce

Tl$_2$LiYCl$_6$:Ce (TLYC) is a new dual-detection elpasolite scintillator that can detect and distinguish between gamma rays and neutrons using pulse-shape discrimination (PSD). It has a higher density and Z-number than the more mature and…

Instrumentation and Detectors · Physics 2020-04-22 M. M. Watts , K. E. Mesick , K. D. Bartlett , D. D. S. Coupland

We have studied the possibility of using Geiger mode multi-pixel photodiodes to read out long scintillator bars with a single wavelength-shifting fiber embedded along the bar. This detector configuration can be used in large volume…

Instrumentation and Detectors · Physics 2015-05-30 O. Mineev , Yu. Kudenko , Yu. Musienko , I. Polyansky , N. Yershov

Silicon photomultipliers (SiPMs) are a good alternative to photomultiplier tubes (PMTs) because their gain and quantum efficiency are comparable to PMTs. However, the largest single-chip SiPM is still less than 1~cm$^2$. In order to use…

Instrumentation and Detectors · Physics 2017-11-17 Felix Liang , Hartmut Brands , Les Hoy , Jeff Preston , Jason Smith

The development prospects of a scintillator-photodiode type detector with an improved energy resolution attaining few per cent, R from 1 to 2%, are considered. The main resolution components have been analyzed theoretically, their…

Instrumentation and Detectors · Physics 2007-05-23 S. V. Naydenov , V. D. Ryzhikov

A new type of the Multi-Pixel Photon Counter (MPPC), sensitive to Vacuum Ultra-Violet (VUV) light (wavelength {\lambda} < 150 nm), is recently developed and produced by Hamamatsu Photonics K.K. The basic properties of the new MPPC are…

Instrumentation and Detectors · Physics 2016-08-24 T. Igarashi , S. Naka , M. Tanaka , T. Washimi , K. Yorita

The main challenges posed by the design of future Positron Emission Tomography machines are the improvement of the spatial and timing resolution and the combined operation with magnetic resonance. The Micro Pixel Photon Counter by Hamamatsu…

Medical Physics · Physics 2008-05-06 N. D'Ascenzo , E. Garutti , M. Goettlich , H. C. Schultz-Coulon , A. Tadday

The scintillating properties of active materials used in high energy and particle physics experiments play an important role regarding the performances of both calorimeters and experiments. Two scintillator materials, a scintillating glass…

Instrumentation and Detectors · Physics 2018-09-11 Güral Aydın

To meet the need for a high counting rate and high time resolution in future high-energy physics experiments, a prototype of a gas photodetector with an RPC structure was developed. Garfield++ simulated the detector's performance, and the…

Instrumentation and Detectors · Physics 2024-07-30 Yiding Zhao , D. Hu , M. Shao , Y. Zhou , S. Lv , Xiangqi Tian , Anqi Wang , Xueshen Lin , Hao Pang , Y. Suna

We present a cylindrically curved GaAs x-ray spectrometer with energy resolution $\Delta E/E = 1.1\cdot 10^{-4}$ and wave-number resolution of $\Delta k/k = 3\cdot 10^{-3}$, allowing plasmon scattering at the resolution limits of the Linac…

A new comprehensive study on the Cs${_2}$ZrCl${_6}$ (CZC) crystal scintillating properties under different types of irradiation was performed over a wide temperature range from 5 to 300 K. The light yield (LY) at room temperature (RT),…

We describe the work carried out at MPIK to design, model, build and characterize a prototype cell filled with a novel indium-loaded scintillator of interest for real-time low energy solar neutrino spectroscopy. First, light propagation in…

Instrumentation and Detectors · Physics 2016-08-16 Dario Motta , Christian Buck , Francis Xavier Hartmann , Thierry Lasserre , Stefan Schönert , Ute Schwan

A tightly focused pulsed laser can locally modify the crystal structure inside the bulk of a scintillator. The result is incorporation of so-called optical barriers with a refractive index (RI) different from that of the crystal bulk, that…

Medical Physics · Physics 2018-07-11 Lisa Bläckberg , Georges El Fakhri , Hamid Sabet

Scintillation detector has lower energy resolution for Gamma-ray as compared to semiconductor detector, better spectra analysis method is essential to traditional method. A model for describing the response function of scintillation…

Instrumentation and Detectors · Physics 2014-07-04 Zhe Li , Yiwen Zhang , Shifeng Sun , Baoyi Wang , Long Wei

In the context of particle therapy monitoring, we are developing a gamma-ray detector to determine the ion range in vivo from the measurement of particle time-of-flight. For this application, a beam monitor capable to tag in time the…

The measurement of the 2D-Angular Correlation of Electron Positron Annihilation Radiation (ACAR) provides unique information about the bulk electronic structure of single crystals. We set up a new prototype for 2D-ACAR measurements using…

Instrumentation and Detectors · Physics 2024-12-23 Kilian Brenner , Francesco Guatieri , Christoph Hugenschmidt