Results 11 to 20 of about 291,201 (341)

Multiple-Collision Free-Electron Laser Compton Backscattering for a High-Yield Gamma-Ray Source

open access: yesApplied Sciences, 2020
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

An imaging neutron/gamma-ray spectrometer [PDF]

open access: yes, 2013
We present the test results of a neutron/gamma-ray imaging spectrometer for the identification and location of radioactive and special nuclear materials. Radioactive materials that could be fashioned into a radiation dispersal device typically emit gamma
Bloser, Peter F.   +8 more
core   +2 more sources

Gamma-Ray Localization of Terrestrial Gamma-Ray Flashes [PDF]

open access: yesPhysical Review Letters, 2010
5 pages, 4 figures, 1 table, available at http://prl.aps.org/abstract/PRL/v105/i12 ...
Marisaldi M   +61 more
openaire   +4 more sources

Study on Induced Current of Iron Plate Irradiated by Pulsed Gamma Rays

open access: yesE3S Web of Conferences, 2018
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

ON GAMMA-RAY BURSTS [PDF]

open access: yesThe Eleventh Marcel Grossmann Meeting, 2008
(Shortened) We show by example how the uncoding of Gamma-Ray Bursts (GRBs) offers unprecedented possibilities to foster new knowledge in fundamental physics and in astrophysics. After recalling some of the classic work on vacuum polarization in uniform electric fields by Klein, Sauter, Heisenberg, Euler and Schwinger, we summarize some of the efforts ...
R. RUFFINI   +14 more
openaire   +5 more sources

Ascertaining gamma ray dosage sensitivity of in vitro cultures in banana cv. Ney Poovan (Musa AB)

open access: yesElectronic Journal of Plant Breeding, 2021
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

Gamma-ray polarimetry [PDF]

open access: yesNuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, 2003
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   +2 more sources

Gamma-ray luminosity function of gamma-ray bright AGNs [PDF]

open access: yesResearch in Astronomy and Astrophysics, 2009
Detection of Gamma-ray emission from a class of active galactic nuclei (viz blazars), has been one of the important findings from the Compton Gamma Ray Observatory (CGRO). However, their Gamma-ray luminosity function has not been well determined. Few attempts have been made in earlier works, where BL Lacs and Flat Spectrum Radio Quasars (FSRQs) have ...
Bhattacharya, Debbijoy   +2 more
openaire   +2 more sources

Gamma- and Cosmic-Ray observations with the GAMMA-400 Gamma-Ray telescope [PDF]

open access: yesAdvances in Space Research, 2022
The future space-based GAMMA-400 gamma-ray telescope will operate onboard the Russian astrophysical observatory in a highly elliptic orbit during 7 years to observe Galactic plane, Galactic Center, Fermi Bubbles, Crab, Vela, Cygnus X, Geminga, Sun, and other regions and measure gamma- and cosmic-ray fluxes.
N.P. Topchiev   +23 more
openaire   +2 more sources

Simultaneous multi-nuclide imaging via double-photon coincidence method with parallel hole collimators

open access: yesScientific Reports, 2021
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

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