Results 21 to 30 of about 157,734 (293)
Multiple-Collision Free-Electron Laser Compton Backscattering for a High-Yield Gamma-Ray Source
We observed multiple-collision free-electron laser (FEL)-Compton backscattering in which a multi-bunch electron beam makes head-on collisions with multi-pulse FELs in an optical cavity, using an infrared FEL system in the storage ring NIJI-IV.
Norihiro Sei, Hiroshi Ogawa, QiKa Jia
doaj +1 more source
Nuclear enhancement factor in calculation of Galactic diffuse gamma-rays: A new estimate with DPMJET-3 [PDF]
A new calculation of nuclear enhancement factor, used in estimation of Galactic diffuse gamma-ray flux from proton-proton interaction in order to take account of heavy nuclei included in cosmic-rays and interstellar matter, is presented by use of a Monte Carlo simulator, DPMJET-3.
arxiv +1 more source
An astrophysics application of a low noise Double-sided Silicon Strip Detector (DSSD) is described. A Semiconductor Multiple-Compton Telescope (SMCT) is being developed to explore the gamma-ray universe in the 0.1-20 MeV energy band. Excellent energy resolution and polarization sensitivity are key features of the SMCT.
openaire +4 more sources
Ascertaining gamma ray dosage sensitivity of in vitro cultures in banana cv. Ney Poovan (Musa AB)
In a vegetatively propagated and parthenocarpic crop like banana, the mutation breeding method offers considerable scope to create genetic variability for crop improvement.
C.Y. Shalini Udaya, K. Soorianathasundaram, M. Ganga, P. Paramaguru and U. Sivakumar
doaj +1 more source
Study on Induced Current of Iron Plate Irradiated by Pulsed Gamma Rays
To obtain the transient current response law of the metal component irradiated by pulsed gamma rays, the pulsed gamma ray irradiation experiment of the iron plate was carried out on “Qiangguang-I” accelerator.
Zuo Yinghong+3 more
doaj +1 more source
EXTRAGALACTIC GAMMA-RAYS: GAMMA RAY BURSTS AND BLAZARS [PDF]
The extragalactic gamma-ray sky is dominated by two classes of sources: Gamma-Ray Bursts (GRBs) and radio loud active galactic nuclei whose jets are pointing at us (blazars). We believe that the radiation we receive from them originates from the transformation of bulk relativistic energy into random energy.
openaire +3 more sources
Neutron is an indirectly ionizing particle without charge, which is normally measured by detecting reaction products. Neutron detection system based on measuring gadolinium-converted gamma-rays is a good way to monitor the neutron because the ...
J. Byun+8 more
doaj
Multi-tracer imaging can provide useful information in the definitive diagnosis and research of medical, biological, and pharmaceutical sciences. Single-photon emission computed tomography (SPECT) is one of the nuclear medicine imaging modalities widely ...
Mizuki Uenomachi+3 more
doaj +1 more source
The H.E.S.S. View of the Central 200 Parsecs [PDF]
The inner few hundred parsecs of our galaxy provide a laboratory for the study of the production and propagation of energetic particles. Very-high-energy gamma-rays provide an effective probe of these processes and, especially when combined with data ...
Holland L+3 more
core +2 more sources
Recent observations have shown that some compact stellar binaries radiate the highest energy light in the universe. The challenge has been to determine the nature of the compact object and whether the very high energy gamma-rays are ultimately powered by pulsar winds or relativistic jets.
openaire +3 more sources