Results 31 to 40 of about 196,917 (331)

Radiation effect on germination and seedling traits in rice (Oryza sativa L.)

open access: yesElectronic Journal of Plant Breeding, 2019
The biological effect of new source of physical mutagen viz., electron beam over gamma rays were studied with different dosages in the M1 generation of rice during 2017-18.
R. Lalitha   +6 more
doaj   +1 more source

The Gamma‐Ray Observatory [PDF]

open access: yesAnnals 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

Probit analysis and effect of electron beam and gamma rays in blackgram (Vigna mungo (L.) Hepper)

open access: yesElectronic Journal of Plant Breeding, 2017
An experimental investigation was carried out to determine the lethal dose (LD50) of electron beam and gamma rays on two black gram varieties viz., MDU 1, VBN (Bg) 4. The lethal dose was determined by probit analysis. Dry seeds of both the varieties were
K. Veni   +2 more
doaj   +1 more source

Discovery of Long-Lived Shape Isomeric States which Decay by Strongly Retarded High-Energy Particle Radioactivity

open access: yes, 2000
The reaction 28Si + 181Ta has been studied at E(Lab) = 125 and 135 MeV. Coincidences between high energy particles and various X- and gamma-rays from abnormally long-lived states were observed. e.g.
A. MARINOV   +7 more
core   +2 more sources

Multiwavelength Variability Analysis of 3C 279

open access: yesFrontiers in Astronomy and Space Sciences, 2017
We present a multifrequency analysis of the variability in the flat-spectrum radio quasar 3C 279 from 2008 to 2014. Our multiwavelength datasets range from 1 mm to gamma-rays, with additional optical polarimetry.
Víctor M. Patiño-Álvarez   +8 more
doaj   +1 more source

The Gamma-ray Window to Intergalactic Magnetism

open access: yesUniverse, 2021
One of the most promising ways to probe intergalactic magnetic fields (IGMFs) is through gamma rays produced in electromagnetic cascades initiated by high-energy gamma rays or cosmic rays in the intergalactic space.
Rafael Alves Batista, Andrey Saveliev
doaj   +1 more source

Gamma-Ray Polarimetry

open access: yes, 2022
While the scientific potential of high-energy X-ray and gamma-ray polarimetry has long been recognized, measuring the polarization of high-energy photons is challenging. To date, there has been very few significant detections from an astrophysical source.
Bernard, Denis   +3 more
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 ...
Reshmi Mukherjee   +3 more
openaire   +4 more sources

Multiple Gamma-Ray Detection Capability of a CeBr3 Detector for Gamma Spectroscopy

open access: yesJournal of Spectroscopy, 2017
The newly developed cerium tribromide (CeBr3) detector has reduced intrinsic gamma-ray activity with gamma energy restricted to 1400–2200 keV energy range.
A. A. Naqvi   +5 more
doaj   +1 more source

Gamma radiation: A potential tool for abiotic stress mitigation and management of agroecosystem

open access: yesPlant Stress, 2022
Context: Being sessile, it is impossible for the plants to evade from the unfavourable environmental conditions prevailing due to various abiotic stresses like heat, salinity, drought, flood, heavy metals, and high radiance amongst many others.
Priya Katiyar   +2 more
doaj   +1 more source

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