Background radiation reduction for a high-resolution gamma-ray spectrometer used for environmental radioactivity measurements

2013 ◽  
Vol 715 ◽  
pp. 112-118 ◽  
Author(s):  
I. Radulescu ◽  
A.M. Blebea-Apostu ◽  
R.M. Margineanu ◽  
N. Mocanu
Keyword(s):  
High Resolution ◽  
Gamma Ray ◽  
Background Radiation ◽  
Environmental Radioactivity ◽  
Radiation Reduction ◽  
Gamma Ray Spectrometer ◽  
Radioactivity Measurements ◽  
High Resolution Gamma

A High-Resolution Gamma-Ray Spectrometer for Use in Outer Space

1968 ◽  
Vol 15 (1) ◽  
pp. 242-251 ◽  
Author(s):  
J. Howard Marshall ◽  
Edward Halpern
Keyword(s):  
High Resolution ◽  
Gamma Ray ◽  
Outer Space ◽  
Gamma Ray Spectrometer ◽  
High Resolution Gamma

WINKLER: An imaging high resolution gamma-ray spectrometer

1991 ◽  
Vol 38 (2) ◽  
pp. 543-552 ◽  
Author(s):  
G.H. Nakano ◽  
W.G. Sandie ◽  
J.R. Kilner ◽  
F. Pang ◽  
B.B. Imai
Keyword(s):  
High Resolution ◽  
Gamma Ray ◽  
Gamma Ray Spectrometer ◽  
High Resolution Gamma

scholarly journals Study of the minimum detectable activity in gamma-ray spectrometry with various shielding configurations

2017 ◽  
Vol 1 (T4) ◽  
pp. 56-62
Author(s):  
Vuong Quang Le ◽  
Nguyen Hoang Vo ◽  
Chuong Dinh Huynh ◽  
Phuc Minh Lau ◽  
Thanh Thien Tran ◽  
...  
Keyword(s):  
Environmental Samples ◽  
Gamma Ray ◽  
Background Radiation ◽  
Environmental Radioactivity ◽  
Minimum Detectable Activity ◽  
The Other ◽  
Gamma Ray Spectrometry ◽  
Gamma Spectrometer ◽  
Detectable Activity ◽  
Gamma Ray Spectrometer

In the environmental radioactivity analyzing methods using gamma-ray spectrometry, the natural activities of radionuclides were required to be higher than the minimum detectable activity (MDA). To reduce MDA, one of the popular methods is to improve the ability of reducing the background radiation of the gamma-ray spectrometry. In this work, we designed the shielding configuration with 5 cm lead and 2 mm copper (thickness of walls and top). The MDAs of gamma-ray spectrometer were 2.6–4.24 times times for 40K (1460.8 keV), 232Th (208Tl- 2614.5 keV) and 238U (214Pb- 352 keV; 214Bi- 609.3 keV, 214Bi- 1764.5 keV). In the other hand, MDA for 238U with this shielding configuration is smaller than the activity of 238U inside surface soils in Vietnam. These results showed that the gamma spectrometer with NaI(Tl) detector and this shielding configuration was suitable for measurements activity of 238U in the environmental samples.

Gamma-ray burst observations by the HEAO-3 high-resolution gamma-ray spectrometer

1982 ◽  
Author(s):  
Wm. A. Wheaton ◽  
James C. Ling ◽  
William A. Mahoney ◽  
Guenter R. Riegler ◽  
Allan S. Jacobson
Keyword(s):  
High Resolution ◽  
Gamma Ray ◽  
Gamma Ray Burst ◽  
Gamma Ray Spectrometer ◽  
High Resolution Gamma

An Observation of SN1987A with a New High Resolution Gamma-Ray Spectrometer

Supernovae ◽  
1991 ◽  
pp. 283-285
Author(s):  
J. Matteson ◽  
M. Felling ◽  
B. Bowman ◽  
M. Briggs ◽  
R. Lingenfelter ◽  
...  
Keyword(s):  
High Resolution ◽  
Gamma Ray ◽  
Gamma Ray Spectrometer ◽  
High Resolution Gamma

An observation of the Galactic center region with the HEXAGONE high resolution gamma-ray spectrometer

1991 ◽  
Author(s):  
J. Matteson ◽  
M. Pelling ◽  
B. Bowman ◽  
M. Briggs ◽  
D. Gruber ◽  
...  
Keyword(s):  
High Resolution ◽  
Gamma Ray ◽  
Galactic Center ◽  
Gamma Ray Spectrometer ◽  
Center Region ◽  
High Resolution Gamma

A High-Resolution Gamma Ray Spectrum of Background Radiation

1971 ◽  
Vol 39 (11) ◽  
pp. 1396-1397 ◽  
Author(s):  
D. E. Raeside ◽  
J. Brnetich
Keyword(s):  
High Resolution ◽  
Gamma Ray ◽  
Background Radiation ◽  
High Resolution Gamma
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