scholarly journals Radiation-induced damage in T4 bacteriophage: the effect of superoxid radicals and molecular oxygen. Progress report, December 1, 1977--November 30, 1978. [. gamma. -irradiated in phosphate buffer suspensions]

1978 ◽  
Author(s):  
A Samuni ◽  
M Chevion ◽  
Y S Halpern ◽  
Y A Ilan ◽  
G Czapski
Keyword(s):  
Molecular Oxygen ◽  
Phosphate Buffer ◽  
Progress Report ◽  
T4 Bacteriophage ◽  
Radiation Induced ◽  
Gamma Irradiated

Radiation-Induced Damage in T4 Bacteriophage: The Effect of Superoxide Radicals and Molecular Oxygen

1978 ◽  
Vol 75 (3) ◽  
pp. 489 ◽  
Author(s):  
Amram Samuni ◽  
Mordechai Chevion ◽  
Yeheskel S. Halpern ◽  
Yael A. Ilan ◽  
Gidon Czapski
Keyword(s):  
Molecular Oxygen ◽  
Superoxide Radicals ◽  
T4 Bacteriophage ◽  
Radiation Induced

Investigation of Gamma Radiation on Hydroxyapatite Synthesized from Chicken Eggshell by ESR Spectroscopy

2015 ◽  
Vol 1125 ◽  
pp. 416-420
Author(s):  
Kanokwan Boonsook ◽  
Weeranuch Kaewwiset ◽  
Ekachai Hoonnivathana ◽  
Pichet Limsuwan ◽  
Kittisakchai Naemchanthara
Keyword(s):  
Electron Spin Resonance ◽  
Gamma Radiation ◽  
Electron Spin ◽  
Esr Spectroscopy ◽  
Chemical Precipitation ◽  
Precipitation Method ◽  
Spin Resonance ◽  
Chicken Eggshell ◽  
Radiation Induced ◽  
Gamma Irradiated

The purpose of this work was investigated the properties and characteristic of gamma radiation on hydroxyapatite which synthesized from biowaste chicken eggshell via the chemical precipitation method. The hydroxyapatite from biowaste chicken eggshell was gamma irradiated in rage 10 Gy to 1 kGy and analyzed by electron spin resonance (ESR). The optimize parameter set ESR read out of Hydroxyapatite were such as microwave power and modulate amplitude corresponded 63.34 mW and 2 mT, respectively. The ESR signal based on the measurement of the concentration of radiation induced radicals CO2- molecular ion also formed in hydroxyapatite. The relative of ESR intensity and dose response was linear. These experiments indicated that the hydroxyapatite from biowaste chicken eggshell could be used good dosimeter in rage 20 to 100 Gy.

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