Results 1 to 10 of about 621 (137)

A prototype detection system for atmospheric monitoring of xenon radioisotopes

Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, 2018
Abstract The design of a radioxenon detection system utilizing a CdZeTe crystal and a plastic scintillator coupled to an array of SiPMs to conduct beta-gamma coincidence detection for atmospheric radioxenon monitoring, as well as the measurement of 135Xe and 133∕133m Xe, have been detailed previously.
Steven A Czyż, Abi T Farsoni, Lily Ranjbar   +2 more
exaly   +4 more sources

Single stage ECR ion source for the mass separation of xenon radioisotopes

Review of Scientific Instruments, 1990
The main features of ECR ion sources (high efficiency, almost unlimited lifetime, stable running conditions, low ion energy spread) make them, when optimized for a high yield at charge state 1+, ideally suited for on-line mass separation. For this reason a single stage 6.4 GHz test source was built for the Paul Scherrer Institute medical radioisotope ...
Hofer M
exaly   +3 more sources

Cosmogenic Activation in Double Beta Decay Experiments [PDF]

Universe, 2020
Double beta decay is a very rare nuclear process and, therefore, experiments intended to detect it must be operated deep underground and in ultra-low background conditions. Long-lived radioisotopes produced by the previous exposure of materials to cosmic
Susana Cebrián
doaj   +2 more sources

An Optimized Design of Single-Channel Beta-Gamma Coincidence Phoswich Detector by Geant4 Monte Carlo Simulations [PDF]

Science and Technology of Nuclear Installations, 2011
An optimized single-channel phoswich well detector design has been proposed and assessed in order to improve beta-gamma coincidence measurement sensitivity of xenon radioisotopes.
Weihua Zhang, Pawel Mekarski, Marc Bean, Jing Yi, Kurt Ungar   +4 more
doaj   +2 more sources

Determination of atmospheric concentrations of xenon radioisotopes. Progress report [PDF]

, 1995
Determination of radioactive xenon concentrations in the atmosphere over a two year period has been performed as part of a research program to develop real-time measurement capabilities. The initial measurements were made to develop, prove, and validate the authors technical approach, while the longer-term measurements are being undertaken to establish
Abel, K. H., Panisko, M. E., Hensley, W. K., Bowyer, T. W., Perkins, R. W.   +4 more
openaire   +3 more sources

Beta-efficiency of a typical gas-flow ionization chamber using GEANT4 Monte Carlo simulations [PDF]

Nuclear Technology and Radiation Protection, 2011
GEANT4 based Monte Carlo simulations have been carried out for the determination of efficiency and conversion factors of a gas-flow ionization chamber for beta particles emitted by 86 different radioisotopes covering the average-b energy range of 5.69
Hussain Abid, Mirza Sikander M., Mirza Nasir M., Siddique Muhammad T.   +3 more
doaj   +2 more sources

CALIBRATION OF THE LUX-ZEPLIN DUAL-PHASE XENON TIME PROJECTION CHAMBER WITH INTERNALLY INJECTED RADIOISOTOPES

, 2022
Self-shielding in ton-scale liquid xenon (LXe) detectors presents a unique challenge for calibrating detector response to interactions in the detector's innermost volume. Calibration radioisotopes must be injected directly into the LXe to reach the central volume, where they must either decay away with a short half life or be purified out.
Nedlik, Christopher D
openaire   +2 more sources

Radioiodination of Two Carborane-Based Dual Cyclooxygenase-2/5-Lipoxygenase Inhibitors and Their In Vitro and In Vivo Evaluation. [PDF]

Chembiochem
Two dicarbadodecaborane(12)‐based dual cyclooxygenase‐2/5‐lipoxygenase (COX‐2/5‐LO) inhibitors were 123I‐labeled. Refinement of labeling and formulation conditions and extensive in vitro characterization are presented. Cell uptake studies in COX‐2‐ and 5‐LO‐overexpressing cell lines showed COX‐2‐independent and partly 5‐LO‐dependent uptake.
Schädlich J, Ullrich M, Haase-Kohn C, Wodtke R, Braun S, Molitor M, Hofmann B, Steinhilber D, Kopka K, Hey-Hawkins E, Pietzsch J, Laube M.   +11 more
europepmc   +2 more sources

ATMOSPHERIC PARTICULATE AND XENON RADIOISOTOPES MONITORING OVER CANADA AND HEALTH IMPACT ESTIMATION BEFORE AND AFTER THE FUKUSHIMA NUCLEAR ACCIDENT

Radiation Protection Dosimetry, 2017
This article presents the results of atmospheric radioactivity monitoring obtained by three Canadian radiation monitoring stations before, after and during Fukushima-Daiichi accident. It includes 210Pb, 212Pb and 7Be (naturally occurring radionuclides) and 131I, 132I, 129Te, 129mTe, 132Te, 134Cs, 136Cs, 137Cs and 133Xe (Fukushima contaminants).
Weihua Zhang, Kurt Ungar
openaire   +3 more sources

Measurement of cosmic-ray muon spallation products in a xenon-loaded liquid scintillator with KamLAND [PDF]

, 2023
Cosmic-ray muons produce various radioisotopes when passing through material. These spallation products can be backgrounds for rare event searches such as in solar neutrino, double-beta decay, and dark matter search experiments.
Nakamura, K., Nakamura, K, Fu, Z, Dell'Oro, S, Dell'Oro, S., Nakamura, R, Fu, Z., Grant, C, Karwowski, H. J., Inoue, K, Futagi, S., Grant, C., Li, A., Hata, K., Shimizu, I, Decowski, MP, Asami, S, Learned, JG, Weerman, KM, Kamei, Y, Kamei, Y., Fujikawa, B. K., Nakahata, T., Smolsky, J, Nakamura, R., Gando, Y., Enomoto, S., Efremenko, Y, Obara, S., Miyake, H, Detwiler, JA, Ichikawa, AK, Goto, A, Ieki, S., Takeuchi, A, Berger, BE, :, Kotera, K, Detwiler, J. A., Weerman, K., Collaboration, KamLAND-Zen, Ikeda, H, Song, H., Kishimoto, Y., Suzuki, A., Gando, A., Watanabe, H, Urano, Y, Smolsky, J., Suzuki, Y., Axani, S. N., O'Donnell, T., Obara, S, Takeuchi, A., Kurasawa, M, Tornow, W, Fushimi, K., Kawada, N, Eizuka, M., Shimizu, I., Kishimoto, Y, Yoshida, Y, Miyake, H., Futagi, S, Efremenko, Y., Hachiya, T, Yoshida, S, Mitsui, T., Shirai, J., Watanabe, H., Markoff, D. M., Ishidoshiro, K., Hata, K, Berger, B. E., Koga, M, Ozaki, H, Hosokawa, K, Ieki, S, Shiraishi, K., Tamae, K, Markoff, DM, Ishidoshiro, K, Eizuka, M, Umehara, S., Kotera, K., Suzuki, A, Fushimi, K, Abe, S., Karwowski, HJ, Fujikawa, BK, Maricic, J., Learned, J. G., Suzuki, Y, Shiraishi, K, Gima, T., Koga, M., Tamae, K., Song, H, Yoshida, Y., Winslow, LA, Gando, A, Shirai, J, Hosokawa, K., Maricic, J, Kawada, N., O'Donnell, T, Gima, T, Decowski, M. P., Sakai, T, Enomoto, S, Ichimura, K., Winslow, L. A., Axani, SN, Urano, Y., Li, A, Mitsui, T, Kurasawa, M., Ichikawa, A. K., Gando, Y, Ichimura, K, Abe, S, Hachiya, T., Goto, A., Sakai, T., Tornow, W., Inoue, K., Ozaki, H., Umehara, S, Asami, S., Yoshida, S., Ikeda, H., Nakahata, T   +131 more
core   +2 more sources