scholarly journals Ultrahigh energy gamma rays in the geomagnetic field and atmosphere

2003 ◽  
Vol 67 (4) ◽  
Author(s):  
H. P. Vankov ◽  
N. Inoue ◽  
K. Shinozaki
Keyword(s):  
Gamma Rays ◽  
Geomagnetic Field ◽  
Ultrahigh Energy ◽  
Energy Gamma

On the ultrahigh-energy gamma rays from Cygnus X-3

1982 ◽  
Vol 261 ◽  
pp. 251 ◽  
Author(s):  
W. T. Vestrand ◽  
D. Eichler
Keyword(s):  
Gamma Rays ◽  
Ultrahigh Energy ◽  
Energy Gamma

A Search for Ultrahigh-Energy Gamma Rays from EGRET-detected Active Galactic Nuclei Using CASA-MIA

1996 ◽  
Vol 469 ◽  
pp. 572 ◽  
Author(s):  
M. Catanese ◽  
A. Borione ◽  
C. E. Covault ◽  
J. W. Cronin ◽  
B. E. Fick ◽  
...  
Keyword(s):  
Active Galactic Nuclei ◽  
Gamma Rays ◽  
Galactic Nuclei ◽  
Ultrahigh Energy ◽  
Energy Gamma

INNER SHELL STUDIES USING INELASTIC COINCIDENCE SPECTROSCOPY OF LOW ENERGY GAMMA RAYS

1987 ◽  
Vol 48 (C9) ◽  
pp. C9-823-C9-826
Author(s):  
S. MANNINEN ◽  
K. HÄMÄLÄINEN ◽  
T. PAAKKARI ◽  
P. SUORTTI
Keyword(s):  
Gamma Rays ◽  
Low Energy ◽  
Energy Gamma ◽  
Coincidence Spectroscopy

Quasi-monochromatic and polarized high-energy gamma rays

1964 ◽  
Vol 83 (5) ◽  
pp. 3-34 ◽  
Author(s):  
F.R. Arutyunyan ◽  
V.A. Tumanyan
Keyword(s):  
Gamma Rays ◽  
High Energy ◽  
High Energy Gamma ◽  
Energy Gamma

Evaluation of the uncertainty associated with sample holders in NAA measurements in LAN/IPEN

2019 ◽  
Vol 7 (2A) ◽  
Author(s):  
Guilherme Soares Zahn ◽  
Regina Beck Ticianelli ◽  
Mitiko Saiki ◽  
Frederico Antonio Genezini
Keyword(s):  
Stainless Steel ◽  
Neutron Activation Analysis ◽  
Neutron Activation ◽  
Gamma Rays ◽  
Experimental Error ◽  
Steel Sample ◽  
Low Energy ◽  
Stainless Steel Sample ◽  
Gamma Emission ◽  
Energy Gamma

In IPEN’s Neutron Activation Laboratory (LAN/IPEN), thin stainless steel sample holders are used for gamma spectrometry in NAA measurements. This material is very practical, but its chemical composition may be troublesome, as it presents large amounts of elements with intermediate atomic number, with attenuation factors for low-energy gamma-rays that must not be neglected. In this study, count rates obtained using different sample holders were compared. To accomplish that, an Am-241 source, with 59-keV gamma emission, was used so that low-energy gamma attenuation differences can be determined. Moreover, in order to study the energy dependence of these differences, a Ho-166m source was also used. From these results, it was possible to analyze the experimental error associated to the variations between sample holders, with the aim of introducing an addictive term to the uncertainty analysis of comparative Neutron Activation Analysis results.

scholarly journals Response of LYSO:Ce scintillation crystals to low energy gamma-rays

2015 ◽  
Vol 12 (2) ◽  
pp. 319-324 ◽  
Author(s):  
K. G. Afanaciev ◽  
A. M. Artikov ◽  
V. Yu. Baranov ◽  
M. A. Batouritski ◽  
J. A. Budagov ◽  
...  
Keyword(s):  
Gamma Rays ◽  
Low Energy ◽  
Scintillation Crystals ◽  
Energy Gamma

Low-energy gamma rays from isotopes produced by (n, γ) reactions

1972 ◽  
Vol 10 (1) ◽  
pp. 125-135 ◽  
Author(s):  
M. Bruin ◽  
P. J. M. Korthoven
Keyword(s):  
Gamma Rays ◽  
Low Energy ◽  
Energy Gamma
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