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

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

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

Extragalactic Origin of Low Energy Gamma Rays

Nature ◽  
1972 ◽  
Vol 235 (5337) ◽  
pp. 319-320 ◽  
Author(s):  
S. V. DAMLE ◽  
R. R. DANIEL ◽  
GEORGE JOSEPH ◽  
P. J. LAVAKARE
Keyword(s):  
Gamma Rays ◽  
Low Energy ◽  
Energy Gamma

Bone Mineral (Apatite) Assay by Photon Scattering - A Survey of Sources and Experimental Evaluation

1974 ◽  
Vol 18 ◽  
pp. 545-556 ◽  
Author(s):  
Luther E. Preuss ◽  
Dennis G. Piper ◽  
Claudius Bugenis
Keyword(s):  
Bone Mineral Content ◽  
Bone Mineral ◽  
Gamma Rays ◽  
Experimental Evaluation ◽  
Mineral Content ◽  
Low Energy ◽  
X Rays ◽  
Photon Scattering ◽  
Energy Gamma

AbstractCurrent methods of measuring bone mineral content In vitro are either inaccurate or measure density in non-intuitive units. A recently developed system overcomes these difficulties by utilizing the Compton scattering of photons from bone. Two sources of monoenergetic photons with related properties are required. The range includes energetic x-rays and low energy gamma rays. This study analyzes a number of the possible nuclide source combinations, and reports experimental results accomplished with a 153Gd-170-Tm combination. In vitro measurement of the density of ox bones by this method agreed with Archimedean measurements within three percent.

scholarly journals A Search for Low-energy Gamma-rays from the Quasar 3C286

Nature ◽  
1965 ◽  
Vol 207 (4995) ◽  
pp. 396-396 ◽  
Author(s):  
D. J. ADAMS ◽  
R. R. HILLIER ◽  
A. F. JANES
Keyword(s):  
Gamma Rays ◽  
Low Energy ◽  
Energy Gamma

scholarly journals Absorption of high energy gamma-rays by low energy intergalactic photons

1996 ◽  
Vol 75 (1-2) ◽  
pp. 401-412 ◽  
Author(s):  
F. W. Stecker ◽  
O. C. De Jager
Keyword(s):  
Gamma Rays ◽  
High Energy ◽  
Low Energy ◽  
High Energy Gamma ◽  
Energy Gamma
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