scholarly journals Effects of Low-Level Gamma Radiation on Common Nitroaromatic, Nitramine, and Nitrate Ester Explosives

ACS Omega ◽  
2022 ◽  
Author(s):  
Patricia L. Huestis ◽  
Jamie A. Stull ◽  
Joseph P. Lichthardt ◽  
Maryla A. Wasiolek ◽  
Lori Montano-Martinez ◽  
...  
Keyword(s):  
Gamma Radiation ◽  
Nitrate Ester ◽  
Low Level

scholarly journals VERIFYING NUCLEAR WASTE TILE-HOLES USING GAMMA RADIATION SCANNING

2019 ◽  
Vol 8 (1) ◽  
pp. 53-62
Author(s):  
James Johnston ◽  
Shuwei Yue ◽  
Jeremy Stewart
Keyword(s):  
Radioactive Waste ◽  
Gamma Radiation ◽  
Nuclear Waste ◽  
Isotope Production ◽  
Radiation Level ◽  
Low Level ◽  
Waste Storage ◽  
Below Ground ◽  
Radiation Sensors ◽  
Radiation Profile

Nuclear waste management facilities at Chalk River Laboratories (CRL) use below-ground “tile-holes” to store solid waste from various activities such as medical isotope production. After long periods of isotopic decay, some of the waste has decayed down to low activities and can be transferred to low-level waste storage facilities. This paper presents a method to verify the radiation level of the waste inside tile-holes by performing gamma radiation scans along the depth of waste storage tile-holes. Such measurements allow for noninvasive verification of tile-hole contents and provide input to the assessment of radiological risk associated with removal of the waste. Using the radiation profile system, the radiation level of the radioactive waste may be identified based on the radiation profile. This information will support planning for possible transfer of this waste to a licensed waste storage facility designed for low-level waste, thus freeing storage space for possible tile-hole re-use for more highly radioactive waste. CRL-developed small diode-based gamma radiation sensors have been used in these radiation scans. The diode sensors were deployed into verification tubes adjacent to the tile-holes to measure the radiation profile. Over 10 tile-holes have been scanned using this technique since 2009.

scholarly journals Radiometric 14C Dating: New Background Analysis, Basis of Improved Systems

Radiocarbon ◽  
1997 ◽  
Vol 40 (1) ◽  
pp. 157-166
Author(s):  
Pall Theodórsson
Keyword(s):  
Gamma Radiation ◽  
Radiocarbon Dating ◽  
Liquid Scintillation ◽  
General Analysis ◽  
14C Dating ◽  
Low Level ◽  
Its Analysis ◽  
Gamma Detectors

A recent broad study of the background of all types of low-level beta and gamma detectors has now made it possible to analyze its components more reliably and with greater detail. This general analysis is developed further here for gas proportional and liquid scintillation counters used in radiocarbon dating. The background of gas counters, which is dominated by secondary cosmic gamma radiation, is now well understood and can be described quantitatively. The background of liquid counters is less well understood and can only be described semiquantitatively, its analysis resting partly on estimates. Methods to reduce the background of both types of systems are described and their effectiveness discussed. This analysis may help in evaluating the quality of existing systems as well as in designing better ones.

The Effect of Continuous Low-Level Gamma Radiation on Alloxan-Induced Lethality in Mice

1967 ◽  
Vol 32 (1) ◽  
pp. 176
Author(s):  
Joseph A. Watson ◽  
Donald P. Doolittle
Keyword(s):  
Gamma Radiation ◽  
Low Level

Exploring the effects of low-level laser therapy on fibroblasts and tumor cells following gamma radiation exposure

2016 ◽  
Vol 9 (11-12) ◽  
pp. 1157-1166 ◽  
Author(s):  
Camila Ramos Silva ◽  
Fernanda Viana Cabral ◽  
Claudinei Francisco Morais de Camargo ◽  
Silvia Cristina Núñez ◽  
Tania Mateus Yoshimura ◽  
...  
Keyword(s):  
Gamma Radiation ◽  
Radiation Exposure ◽  
Tumor Cells ◽  
Laser Therapy ◽  
Low Level Laser Therapy ◽  
Low Level ◽  
Low Level Laser ◽  
Level Laser
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