Results 31 to 40 of about 596,755 (352)
Establishment of Anti-cosmic Ray HPGe Gamma Spectrometer
Yuanzineng kexue jishu, 2023 Radionuclide verification is one of the four monitoring technologies used in International Monitoring System of Comprehensive Nuclear-Test-Ban Treaty (CTBT). The activity of radionuclides concerned by CTBT generally performs at the low-level.
ZHU Yuchen;LI Qi;FAN Yuanqing;ZHAO Yungang;WANG Shilian;ZHANG Xinjun;JIA Huaimao;ZHANG Ruiqin;LI Ruiying;ZHOU Jianliang
doaj
, 2022 Gamma-ray bursts (GRB) are short and intense bursts of $\sim$100 keV$-$1MeV photons, usually followed by long-lasting decaying afterglow emission in a wide range of electromagnetic wavelengths from radio to X-ray and, sometimes, even to GeV gamma-rays.
Yu, Yun-Wei +3 more
openaire +2 more sources
Nuclear Engineering and Technology, 2020 A beta ray scanner was proposed for in-situ discrimination of beta and gamma ray radioactivity. This scanner is based on the principle that gamma and beta rays experience different changes in detection efficiency in scintillators with different ...
Jun Woo Bae, Hee Reyoung Kim
doaj +1 more source
Particles, Strings and Cosmology (PASCOS 99), 2000 Ultra-high-energy, >10^19 eV, cosmic-ray and high energy, ~10^14 eV, neutrino production in GRBs is discussed in the light of recent GRB and cosmic-ray observations. Emphasis is put on model predictions that can be tested with operating and planned cosmic-ray and neutrino detectors, and on the prospects of testing for neutrino properties.
openaire +4 more sources
BL Lacertae Objects and the Extragalactic Gamma-Ray Background
, 2011 A tight correlation between gamma-ray and radio emission is found for a sample of BL Lacertae (BL Lac) objects detected by Fermi Gamma-ray Space Telescope (Fermi) and the Energetic Gamma-Ray Experiment Telescope (EGRET).
Abdo +39 more
core +1 more source
COMPTEL observations of cosmic gamma‐ray bursts [PDF]
, 1991 The imaging γ‐ray telescope COMPTEL on board NASA’s Compton Gamma‐Ray Observatory (GRO) has observed many cosmic gamma‐ray bursts during the early mission phase of GRO. COMPTEL records time‐resolved burst spectra over 0.1 MeV to 10 MeV energies, and, for
Bennett, K +26 more
core +2 more sources
Outliers in Spectral Time Lag-Selected Gamma Ray Bursts
Universe, 2022 It is possible that astrophysical samples are polluted by some outliers, which might belong to a different sub-class. By removing the outliers, the underlying statistical features may be revealed.
Fei-Fei Wang, Yuan-Chuan Zou
doaj +1 more source
The Gamma‐Ray Observatory [PDF]
Annals of the New York Academy of Sciences, 1989 AbstractThe Gamma-Ray Observatory (GRO), a Shuttle-launched free-flying Observatory is currently scheduled for launch in November 1990. The mission provides nearly six orders of magnitude in spectral coverage, from about 50 KeV to about 30 GeV, with a sensitivity over the entire range over an order of magnitude greater than that of previous ...
openaire +3 more sources
Discovery of gamma-ray emission from a strongly lobe-dominated quasar 3C 275.1
, 2015 We systematically analyze the 6-year {\it Fermi}/LAT data of the lobe-dominated quasars (LDQs) in the complete LDQ sample from 3CRR survey and report the discovery of high-energy $\gamma$-ray emission from 3C 275.1. The $\gamma$-ray emission of 3C 207 is
Bai, Jin-Ming +9 more
core +1 more source
130GeV gamma-ray line through axion conversion
, 2015 We apply the axion-photon conversion mechanism to the 130 GeV $\gamma$-ray line observed by the Fermi satellite. Near the Galactic center, some astrophysical sources and/or particle dark matter can produce energetic axions (or axionlike particles), and ...
Ioka, Kunihito +3 more
core +1 more source