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The luminescence of fifteen representative Eu$^{2+}$-doped phosphors used for white-LED and scintillation applications is studied through a Constrained Density Functional Theory. Transition energies and Stokes shift are deduced from…

Materials Science · Physics 2017-09-20 Yongchao Jia , Anna Miglio , Samuel Poncé , Masayoshi Mikami , Xavier Gonze

We investigate the effect of high order radiative corrections in unpolarized electron proton elastic scattering and compare with the calculations at lowest order, which are usually applied to experimental data. Particular attention is…

High Energy Physics - Phenomenology · Physics 2015-06-17 E. A. Kuraev , A. I. Ahmadov , Yu. M. Bystritskiy , E. Tomasi-Gustafsson

In this work, the effects of $^\text{60}$Co $\gamma$-ray irradiation on high resistivity $p$-type diodes have been investigated. The diodes were exposed to dose values of 0.1, 0.2, 1, and \SI{2}{\mega Gy}. Both macroscopic ($I$--$V$,…

The performance of a silicon photomultiplier has been assessed at low temperature in order to evaluate its suitability as a scintillation readout device in liquid argon particle physics detectors. The gain, measured as 2.1E6 for a constant…

Instrumentation and Detectors · Physics 2011-06-09 P. K. Lightfoot , G. J. Barker , K. Mavrokoridis , Y. A. Ramachers , N. J. C. Spooner

Liquid scintillator (LS) will be adopted as the detector material in JUNO (Jiangmen Underground Neutrino Observatory). The energy resolution requirement of JUNO is 3%, which has never previously been reached. To achieve this energy…

The effect of magnetron power on the room temperature 1.54 $\mu$m infra-red photoluminescence intensity of erbium doped AlN films grown by r. f. magnetron sputtering, has been studied. The AlN:Er thin films were deposited on (001) Silicon…

Materials Science · Physics 2019-09-25 Syed Sajjad Hussain , Valerie Brien , Hervé Rinnert , Philippe Pigeat

The observation of the electro-optic effect in strained silicon waveguides has been considered as a direct manifestation of an induced $\chi^{(2)}$ non-linearity in the material. In this work, we perform high frequency measurements on…

Background: Ultra-high dose rate proton therapy shows promise in tissue sparing by enhancing therapeutic ratio through the FLASH effect. In radiotherapy, accurate in vivo dosimetry is crucial for quality assurance, but remains challenging…

LiF:Mg,Ti and LiF:Mg,Cu,P are well known thermoluminescence (TL) dosimetry materials since many years. A few years ago their properties seemed well known and it was widely believed that they are not suitable for the measurement of doses…

Instrumentation and Detectors · Physics 2014-02-27 Barbara Obryk , Helen J. Khoury , Vinicius S. de Barros , Pedro L. Guzzo , Paweł Bilski

In this paper we show that state-of-the-art commercial off-the-shelf Flash memory chip technology (20 nm technology node with multi-level cells) is quite sensitive to ionizing radiation. We find that the fail-bit count in these Flash chips…

Instrumentation and Detectors · Physics 2018-09-25 Preeti Kumari , Levi Davies , Narayana P. Bhat , En Xia Zhang , Michael W. McCurdy , Daniel M. Fleetwood , Biswajit Ray

Purpose: Our aim was to elucidate the critical factors responsible for inducing the FLASH effect, focusing on the role of free radicals through simulation and experimental approaches. Methods and Materials: The whole abdomen of C57BL/6 mice…

This study introduces the HYPERSCINT research platform, the first commercially available scintillation dosimetry platform capable of multi-point dosimetry through the hyperspectral approach. Optic and dosimetric performances of the system…

Instrumentation and Detectors · Physics 2021-04-19 Emilie Jean , Francois Therriault-Proulx , Luc Beaulieu

This paper presents the results of measurements of fluorescing cerium-doped yttrium aluminum garnet crystals after being irradiated by an accelerated electron beam with energy of around 4 MeV. The measurements were performed using the PHIL…

Instrumentation and Detectors · Physics 2021-03-04 K. Burdonov , P. Forestier-Colleoni , J. -N. Cayla , T. Ceccotti , S. Chance , V. Chaumat , N. Delerue , H. Guler , V. Lelasseux , B. Lucas , J. Fuchs

In the solid state, a large variety of single-photon emitters present high quality photophysical properties together with a potential for integration. However, in many cases, the host matrix induces fluctuations of the emission wavelength…

Optics · Physics 2026-02-05 Aymeric Delteil , Stéphanie Buil , Jean-Pierre Hermier

Ionizing radiation (X-rays, proton beams) causes structural changes in materials. If a vibrating metallic wire is subjected to such radiation, the natural frequency of the wire is affected as a result of changes in the elastic…

A plastic scintillator bar with dimensions 300 cm x 2.5 cm x 11 cm was exposed to a focused muon beam to study its light yield and timing characteristics as a function of position and angle of incidence. The scintillating light was read out…

Instrumentation and Detectors · Physics 2017-08-07 A. Blondel , D. Breton , A. Dubreuil , A. Khotyantsev , A. Korzenev , J. Maalmi , A. Mefodev , P. Mermod , E. Noah

In particle accelerators, the build-up of electron cloud may have important influence on beam quality. Especially for the positron and proton accelerators, massive electrons lead to electron cloud, which affects the stability, energy,…

Accelerator Physics · Physics 2015-07-28 Jie Wang , Yan-Hui Xu , Bo Zhang , Yong Wang , Wei Wei

Fluctuations in photon production in scintillator could contribute to the total energy resolution of a scintillation detector. This contribution, called intrinsic resolution (IR), is one of the factors limiting the total energy resolution…

Instrumentation and Detectors · Physics 2023-10-16 O. Smirnov

In this manuscript we report on the scintillation properties and pulse shape discrimination (PSD) performance of new organic glass scintillator. Two cylindrical samples with dimensions of 2x2 inches were tested. Additionally, this two…

We have studied the scintillation of pure and doped sodium iodide crystals handled in low humidity conditions under external $\alpha$ and $\gamma$ excitation from room temperature down to 4K. The light yield of pure sodium iodide was seen…

Instrumentation and Detectors · Physics 2022-05-25 M. Clark , F. Froborg , P. C. F. Di Stefano , F. Calaprice