نتایج جستجو برای: 60co γ

تعداد نتایج: 75652  

1998
R. F. Laitano P. J. Lamperti M. P. Toni

A comparison was made between the National Institute of Standards and Technology (NIST) and Ente per le Nuove Tecnologie l'Energia e l'Ambiente (ENEA) air kerma standards for medium energy x rays and 60Co gamma rays. The comparison took place at ENEA in June 1994. Two different transfer chambers from NIST were used for the comparison. The measurements were made at radiation qualities similar to...

2015
Bing Deng Jingwei Hou Yi Quan Lan Dong Zhaoyi Tan

In this study, the yields of unstable chromosome aberrations in human lymphocytes induced by β particles from low-dose HTO have been measured. HTO was mixed with heparinized blood in varying amounts so that a dose of 6.24 × 10−4 Gy to 1.23 Gy were delivered in 24 and 48 h, respectively. After 72-h culture, the dicentric yield was measured as a function of dose to the blood and compared with dat...

Journal: :Journal of Education, Health and Sport 2021

Introduction. Ionizing radiation in low doses of intensity causes prolonged activation lipid per oxidation and depletion the antioxidant system a living organism. Moreover, Ademethionine is currently being considered as promising antioxidant.Method. Experimental studies were carried out on 60 sexually mature male Wistar rats. The animals irradiated total dose 1Gy γ-therapeutic device AGAT-R No....

Journal: :Macedonian Journal of Chemistry and Chemical Engineering 2021

Spices are food additives that used in many different areas of technology. Most the spices contain essential oils sensitive to thermal degradation processes. Therefore, an alternate method decontamination, other than thermal, should be so microbial safety is ensured. This study was focused on evaluation effect ionizing radiation, known as radurization, microbiological samples red pepper, black ...

Journal: :Biomedical and environmental sciences : BES 2017
Shuang Li Xue Lu Jiang Bin Feng Mei Tian Qing Jie Liu

The aim of the present study is to analyze the global research trend of radiation-responsive genes and identify the highly reproducible radiation-responsive genes. Bibliometric methods were applied to analyze the global research trend of radiation-responsive genes. We found 79 publications on radiation-responsive genes from 2000 to 2017. A total of 35 highly reproducible radiation-responsive ge...

2016
Vijay K. Singh Oluseyi O. Fatanmi Stephen Y. Wise Victoria L. Newman Patricia L.P. Romaine Thomas M. Seed

This study was designed to evaluate the possible potentiation of survival protection afforded by relatively low-dose amifostine prophylaxis against total body irradiation in combination with a protective, less toxic agent, gamma-tocotrienol (GT3). Mice were administered amifostine and/or GT3, then exposed to 9.2 Gy 60Co γ-irradiation and monitored for survival for 30 days. To investigate cytoki...

2016
Jian Xiang Liu Yan Pan Jian Lei Ruan Chunnan Piao Xu Su

As part of a regional International Atomic Energy Agency-coordinated research project with the support from the National Health and Family Planning Commission of China, 22 laboratories participated in the intercomparison in cytogenetic dosimetry in China. Slides for chromosomal aberrations were prepared by the Department of Radiation Epidemiology, National Institute for Radiological Protection,...

Journal: :Journal of radiation research 2006
Kook Jin Chun Suck Ho Hah Hyun Moon Kim Gwang Ho Yoo

The EGS4 Monte Carlo simulation technique was used to obtain the energy spectra of photons arriving at a detector from the pulse height distributions measured by the same detector. First, the measured pulse height distribution for incident photons from several radiation sources such as 60Co, 137Cs, 152Eu and 207Bi with a collimator are compared with those calculated using the EGS4 code to inves...

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