Cancer Mortality (1956-1985) among Male Employees of Atomic Energy of Canada Limited with Respect to Occupational Exposure to External Low-Linear-Energy-Transfer Ionizing Radiation

1993 ◽  
Vol 133 (3) ◽  
pp. 375 ◽  
Author(s):  
Moira A. Gribbin ◽  
John L. Weeks ◽  
Geoffrey R. Howe
Keyword(s):  
Energy Transfer ◽  
Occupational Exposure ◽  
Ionizing Radiation ◽  
Cancer Mortality ◽  
Linear Energy Transfer ◽  
Atomic Energy ◽  
Canada Limited

scholarly journals The effect of low LET (Linear Energy Transfer) ionizing radiation to catalase activity of wistar’s submandibular gland

2016 ◽  
Vol 1 (3) ◽  
pp. 145
Author(s):  
Nevy T. Putri ◽  
Sarianoferni Sarianoferni ◽  
Endah Wahjuningsih
Keyword(s):  
Energy Transfer ◽  
Ionizing Radiation ◽  
Submandibular Gland ◽  
Rattus Norvegicus ◽  
Catalase Activity ◽  
Linear Energy Transfer ◽  
Submandibular Salivary Gland ◽  
X Rays ◽  
X Ray ◽  
Bonferroni Test

Intraoral periapical radiograph examination is the additional examination which is the most widely used in Dentistry. This radiograph examination using an x-ray ionizing radiation with low LET (Linear Energy Transfer), and may affect submandibular salivary gland. Ionizing radiation exposure can cause damage by inducing a series of changes at the molecular and cellular level. This study aimed to prove the effects of x-ray ionizing radiation with low LET towards the catalase activity of Rattus norvegicus strain Wistar’s submandibular gland. The subjects were 28 male Wistar rats and divided into 4 groups (n=7). Three groups were exposed 4, 8 and 14 times to radiation with 0.002 µSv for each exposure. The catalase activity of each rat was examined by a spectrophotometer. Data were analyzed using one-way ANOVA followed by Bonferroni test. The results showed the average of catalase activity on Wistar rat’s submandibular gland, respectively for: 0.150±0.0895 (KK), 0.1405±0.0607 (K1), 0.1228±0.0290 (K2), 0.1227±0.0556 (K3). Data showed significant differences of catalase activity between test groups, but showed not significant differences of catalase activity between each groups of Rattus norvegicus strain Wistar’s submandibular gland. In this study concluded decreased catalase activity of Rattus norvegicus strain Wistar’s submandibular gland resulting from x-rays ionizing radiation by 4 times, 8 times and 14 times exposures.

A Diamond Detector for Registration of Ionizing Radiation with Low Linear Energy Transfer

2017 ◽  
Vol 60 (1) ◽  
pp. 75-81
Author(s):  
E. V. Gladchenkov ◽  
K. V. Zakharchenko ◽  
A. F. Kaperko ◽  
V. A. Kolyubin ◽  
V. P. Kulagin ◽  
...  
Keyword(s):  
Energy Transfer ◽  
Ionizing Radiation ◽  
Linear Energy Transfer ◽  
Diamond Detector

Low-level Effects of Low Linear-energy-transfer Ionizing Radiation on Leukocarcinogenesis in Mice

1989 ◽  
Vol 57 ◽  
pp. 327
Author(s):  
E. P. Cronkite ◽  
T. Inoue ◽  
V. P. Bond ◽  
J. Bullis ◽  
N. Pappas
Keyword(s):  
Energy Transfer ◽  
Ionizing Radiation ◽  
Linear Energy Transfer ◽  
Low Level

scholarly journals Withdrawal: Distinct roles of Ape1 protein, an enzyme involved in DNA repair, in high or low linear energy transfer ionizing radiation-induced cell killing.

2020 ◽  
Vol 295 (18) ◽  
pp. 6249-6249
Author(s):  
Hongyan Wang ◽  
Xiang Wang ◽  
Guangnan Chen ◽  
Xiangming Zhang ◽  
Xiaobing Tang ◽  
...  
Keyword(s):  
Dna Repair ◽  
Energy Transfer ◽  
Ionizing Radiation ◽  
Linear Energy Transfer ◽  
Cell Killing ◽  
Radiation Induced

Measurement System Design of Micro-Dose Experimental Spectrum

2020 ◽  
Vol 34 (12) ◽  
pp. 2054031
Author(s):  
Min Zhu ◽  
Ming Guo ◽  
Hao Hong ◽  
Sheng’ao Wang ◽  
Biao Li
Keyword(s):  
Energy Transfer ◽  
Ionizing Radiation ◽  
Radiation Field ◽  
Proportional Counter ◽  
Linear Energy Transfer ◽  
Photon Radiation ◽  
Radiation Quality ◽  
Detector Signal ◽  
Tissue Equivalent ◽  
Tissue Equivalent Proportional Counter

Tissue equivalent proportional counter (TEPC) is used to measure the micro-dose spectrum of ionizing radiation. Through changing tissue-equivalent gas pressure, TEPC can simulate the case of radiation energy deposition in different sizes of human cells. Various dosimetric quantities can be obtained such as absorbed dose, radiation quality factor and micro-dose equivalent. Because TEPC simulated cell size is less than the range of ionizing radiation particles, TEPC can be used as linear energy transfer spectroscopy, which can identify different linear energy transfer particles in a mixed radiation field and play an important role in mixed neutron–photon radiation field monitoring and protection. A tissue equivalent proportional counter is designed and manufactured in this paper. Through the built of micro-dose detector signal testing platform, and the realization of measurement of micro-dose detector signal debugging and important parameters (stability, energy resolution, etc.) by [Formula: see text] source method, micro-dose energy spectrum analysis and experimental measurements of Cf-252 source were ultimately achieved. Results show that the detector has good sealing performance and stability, with 12 h stability better than 2.7%. Based on all the above spectra, micro-dosing spectrum of Cf-252 source was experimentally obtained.

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