Results 41 to 50 of about 4,053,623 (330)

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

Electronic 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, P. Arunachalam, A. Mothilal, N. Senthil, G. Hemalatha, C. Vanniarajan, J. Souframanien   +6 more
doaj   +1 more source

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

Electronic 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, C. Vanniarajan and, J. Souframanien   +2 more
doaj   +1 more source

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

, 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, D. KOLB, Kolb D., Marinov A., Marinov A., Marinov A., S. GELBERG, wiok S.   +7 more
core   +2 more sources

Constraining Very Heavy Dark Matter Using Diffuse Backgrounds of Neutrinos and Cascaded Gamma Rays [PDF]

, 2012
We consider multi-messenger constraints on very heavy dark matter (VHDM) from recent Fermi gamma-ray and IceCube neutrino observations of isotropic background radiation.
K. Murase, J. Beacom
semanticscholar   +1 more source

Observation of thundercloud-related gamma rays and neutrons in Tibet [PDF]

, 2012
During the 2010 rainy season in Yangbajing (4300 m above sea level) in Tibet, China, a long-duration count enhancement associated with thunderclouds was detected by a solar-neutron telescope and neutron monitors installed at the Yangbajing Comic Ray ...
H. Tsuchiya, K. Hibino, K. Kawata, N. Hotta, N. Tateyama, M. Ohnishi, M. Takita, D. Chen, J. Huang, M. Miyasaka, I. Kondo, E. Takahashi, S. Shimoda, Y. Yamada, H. Lu, J. Zhang, X. X. Yu, Y. Tan, S. Nie, K. Munakata, T. Enoto, K. Makishima   +21 more
semanticscholar   +1 more source

Multiwavelength Variability Analysis of 3C 279

Frontiers 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, Sunil Fernandes, Vahram Chavushyan, Erique López-Rodríguez, Jonathan León-Tavares, Eric M. Schlegel, Luis Carrasco, José R. Valdés, Alberto Carramiñana   +8 more
doaj   +1 more source

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

Journal 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, F. Z. Khiari, F. A. Liadi, Khateeb ur-Rehman, M. Raashid, A. A. Isab   +5 more
doaj   +1 more source

Gamma Rays from Compton Scattering in the Jets of Microquasars: Application to LS 5039

, 2005
Recent HESS observations show that microquasars in high-mass systems are sources of VHE gamma-rays. A leptonic jet model for microquasar gamma-ray emission is developed.
Bednarek W., Bosch-Ramon V., Charles D. Dermer, Dermer C. D., Guilbert P. W., Markus Bottcher, Paredes J. M., Ribo M., Romero G. E.   +8 more
core   +1 more source

Fermi-LAT Observations of the Diffuse Gamma-Ray Emission: Implications for Cosmic Rays and the Interstellar Medium [PDF]

, 2012
The γ-ray sky > 100 MeV is dominated by the diffuse emissions from interactions of cosmic rays with the interstellar gas and radiation fields of the Milky Way.
The Fermi-LAT Collaboration
semanticscholar   +1 more source

Detection of Pulsed Gamma Rays Above 100 GeV from the Crab Pulsar [PDF]

Science, 2011
This detection constrains the mechanism and emission region of gamma-ray radiation in the pulsar’s magnetosphere. We report the detection of pulsed gamma rays from the Crab pulsar at energies above 100 giga–electron volts (GeV) with the Very Energetic ...
E. Aliu, T. Arlen, T. Aune, M. Beilicke, W. Benbow, A. Bouvier, S. Bradbury, J. Buckley, V. Bugaev, K. Byrum, A. Cannon, A. Cesarini, J. Christiansen, L. Ciupik, E. Collins-Hughes, M. Connolly, W. Cui, R. Dickherber, C. Duke, M. Errando, A. Falcone, J. Finley, G. Finnegan, L. Fortson, A. Furniss, N. Galante, D. Gall, Karine A. Gibbs, G. Gillanders, S. Godambe, S. Griffin, J. Grube, R. Guenette, G. Gyuk, D. Hanna, J. Holder, H. Huan, G. Hughes, C. Hui, T. Humensky, A. Imran, P. Kaaret, N. Karlsson, M. Kertzman, D. Kieda, H. Krawczynski, F. Krennrich, M. Lang, M. Lyutikov, A. Madhavan, G. Maier, P. Majumdar, S. McArthur, A. McCann, M. McCutcheon, P. Moriarty, R. Mukherjee, P. Nuñez, R. Ong, M. Orr, A. Otte, N. Park, J. Perkins, F. Pizlo, M. Pohl, H. Prokoph, J. Quinn, K. Ragan, L. Reyes, P. Reynolds, E. Roache, H. Rose, J. Ruppel, D. B. Saxon, M. Schroedter, G. Sembroski, G. Şentürk, Andrew W. Smith, D. Staszak, G. Tesic, M. Theiling, S. Thibadeau, K. Tsurusaki, J. Tyler, A. Varlotta, V. Vassiliev, S. Vincent, M. Vivier, S. Wakely, J. Ward, T. Weekes, A. Weinstein, T. Weisgarber, D. Williams, B. Zitzer   +94 more
semanticscholar   +1 more source