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Related papers: VADER: a VAriable Dose-rate External 137Cs irradia…

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The detection of low abundances of $^{135}$Cs in environmental samples is of significant interest in different fields of environmental sciences, especially in combination with its shorter-lived sister isotope $^{137}$Cs. The method of…

Instrumentation and Detectors · Physics 2024-10-29 Alexander Wieser , Johannes Lachner , Martin Martschini , Dorian Zok , Alfred Priller , Peter Steier , Robin Golser

Detectors in next-generation high-energy physics experiments face several daunting requirements, such as high data rates, damaging radiation exposure, and stringent constraints on power, space, and latency. To address these challenges,…

Data Analysis, Statistics and Probability · Physics 2025-08-18 Alexander Yue , Haoyi Jia , Julia Gonski

In the sealed-off cesium vapor cell studied in this work, a residual rubidium fraction of approximately $\sim$1\% was observed. We investigate the optical response of these trace Rb atoms in a sealed 1~cm long Cs-filled vapor cell. Despite…

Atomic Physics · Physics 2026-03-11 Armen Sargsyan , Anahit Gogyan , David Sarkisyan

We present the X-ray analysis of a deep ~200 ksec Chandra observation of the compact steep spectrum radio-loud quasar 3C 186 (z=1.06) and investigate the contribution of the unresolved radio jet to the total X-ray emission. The spectral…

High Energy Astrophysical Phenomena · Physics 2015-06-04 G. Migliori , A. Siemiginowska , A. Celotti

The In-Vessel Viewing System (IVVS) units proposed for ITER are deployed to perform in-vessel examination. During plasma operations, the IVVS is located beyond the vacuum vessel, with shielding blocks envisaged to protect components from…

Instrumentation and Detectors · Physics 2014-12-04 A. Turner , R. Pampin , M. J. Loughlin , Z. Ghani , G. Hurst , A. Lo Bue , S. Mangham , A. Puiu , S. Zheng

The observation of short gamma ray bursts (SGRBs) in the TeV energy range plays an important role in understanding the radiation mechanism and probing new areas of physics such as Lorentz invariance violation. However, no SGRB has been…

Radiation therapy is considered to be one of important treatment protocols for cancers. Radiation therapy employs several beams of ionizing radiation to kill cancer tumors, but such irradiation also causes damage to normal tissues.…

Optimization and Control · Mathematics 2016-12-06 Shogo Kishimoto , Makoto Yamashita

We analyse the spectral energy distribution (SED) of the eclipsing supersoft X-ray source CAL 87 covering wavelengths from X-rays to the near-infrared. Our study incorporates 26 data points across ultraviolet to near-infrared, sourced from…

High Energy Astrophysical Phenomena · Physics 2025-09-16 Paulo E. Stecchini , Francisco Jablonski , Marcos P. Diaz , Alexandre S. Oliveira , Flavio D'Amico , Natália Palivanas

Context. Water vapor emission at 22 GHz from masers associated with star-forming regions is highly variable. Aims. We present a database of up to 20 years of monitoring of a sample of 43 masers within star-forming regions. The sample covers…

To prevent excessive radiation damage to its Silicon Vertex Tracker, the BaBar experiment at SLAC uses a radiation monitoring and protection system that triggers a beam abort whenever radiation levels are anomalously high. The existing…

Instrumentation and Detectors · Physics 2015-06-26 M. Bruinsma , P. Burchat , A. J. Edwards , H. Kagan , R. Kass , D. Kirkby , B. A. Petersen

Variational autoencoders (VAEs) are a popular generative model used to approximate distributions. The encoder part of the VAE is used in amortized learning of latent variables, producing a latent representation for data samples. Recently,…

Machine Learning · Statistics 2023-05-12 Daniel G. Edelberg , Roy R. Lederman

Negative hydrogen ion sources are used as injectors into accelerators and drive the neutral beam heating in ITER. Certain processes in low-temperature hydrogen plasmas are accompanied by the emission of vacuum ultraviolet (VUV) emission.…

The $\gamma$-ray emission properties of CTD 135, a typical compact symmetric object (CSO), are investigated with $\sim$11-year Fermi/LAT observations. We show that it has bright and significantly variable GeV emission, with the $\gamma$-ray…

High Energy Astrophysical Phenomena · Physics 2021-11-03 Ying-Ying Gan , Hai-Ming Zhang , Jin Zhang , Xing Yang , Ting-Feng Yi , Yun-Feng Liang , En-Wei Liang

Diffusing alpha-emitters radiation therapy (Alpha-DaRT) is a new modality that uses alpha particles to treat solid tumors. Alpha-DaRT employs interstitial sources loaded with low activities of Radium-224, which release a chain of…

{CircumStellar Envelopes (CSEs) of stars are complex chemical objects for which theoretical models encounter difficulties in elaborating a comprehensive overview of the occurring chemical processes. Along with photodissociation, ion-neutral…

Solar and Stellar Astrophysics · Physics 2022-12-08 Jérémy Bourgalais , David V. Bekaert , Aurore Bacmann , Bernard Marty , Nathalie Carrasco

Alpha-DaRT is a new method for treating solid tumors with alpha particles, relying on the release of the alpha-emitting daughter atoms of radium-224 from sources inserted into the tumor. The most important model parameters for Alpha-DaRT…

We report detections of six high-redshift (1.8 < z < 6.4), optically luminous, radio-quiet quasars at 350 micron, using the SHARC II bolometer camera at the Caltech Submillimeter Observatory. Our observations double the number of…

Astrophysics · Physics 2009-11-11 A. Beelen , P. Cox , D. J. Benford , C. D. Dowell , A. Kovacs , F. Bertoldi , A. Omont , C. L. Carilli

The Neutral beam Injectors of the ITER experiment will be based on negative ion sources for the generation of beams composed by 1 MeV H/D particles. The prototype of these sources is currently under testing in the SPIDER experiment, part of…

Plasma Physics · Physics 2023-08-30 M. Barbisan , R. Agnello , G. Casati , R. Pasqualotto , E. Sartori , G. Serianni

We monitored the M87 jet with the ACIS-S detector on Chandra with 5 observations between 2002 Jan and 2002 Jul. Our goal was to determine the presence and degree of variability in morphology, intensity, and spectral parameters. We find…

Astrophysics · Physics 2009-11-07 D. E. Harris

We have developed a novel in-vivo dosimeter based on glass encapsulated TLD rods. These encapsulated rods can be injected into mice and used for validating doses to an individual mouse in a protracted irradiation scenario where the mouse is…

Medical Physics · Physics 2019-09-18 Guy Garty , Monica C. Pujol , David J. Brenner