Long-lived radiation-induced electron spin resonances in an aqueous biological system

1965 ◽  
Vol 21 (1) ◽  
pp. 61-65 ◽  
Author(s):  
Harold M. Swartz ◽  
Robert P. Molenda ◽  
Robert T. Lofberg
Keyword(s):  
Electron Spin ◽  
Biological System ◽  
Radiation Induced ◽  
Spin Resonances

scholarly journals Electron Spin Resonance Studies of Primary Processes in Radiation-induced Reactions. III. 1,3-Butadiene in Organic Rigid Matrices.

1972 ◽  
Vol 26 ◽  
pp. 383-392 ◽  
Author(s):  
Tetsuo Shiga ◽  
Anders Lund ◽  
Per-Olof Kinell ◽  
Jean Galy ◽  
W. B. Pearson ◽  
...  
Keyword(s):  
Electron Spin Resonance ◽  
Electron Spin ◽  
Spin Resonance ◽  
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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