Bone powder as EPR dosimetry system for electron and gamma radiation

• Autorzy: Ziaie F. , Hajiloo N. , Fathollahi H. , Mehtieva S. I.
• Języki publikacji: EN

Abstrakty

EN

In this work bovine bone powder samples were irradiated at three different dose rates of 100, 260 and 630 kGy/min for the absorbed dose range of 3 to 110 kGy, using 10 MeV electron beam radiation. The samples were subjected to EPR measurement at room temperature in air. The variation of EPR signal intensities were constructed and evaluated base on quantitative data related to the absorbed doses. Moreover, they were compared with the obtained results from the samples irradiated by a 60Co gamma-ray source with a dose rate of 2.65 kGy/h. The time and temperature effects on the EPR response of this dosimeter were also studied. The results indicated that the bone sample was a suitable dosimeter especially for electron beam at high doses.

Słowa kluczowe

EN

bone powder dosimeter; EPR response; dose rate; electron beam; gamma ray

• Wydawca: Institute of Nuclear Chemistry and Technology
• Czasopismo: Nukleonika
• Rocznik: 2009
• Tom: Vol. 54, No. 4
• Strony: 267--270
• Opis fizyczny: Bibliogr. 7 poz., rys.

Twórcy

autor

Ziaie F.

autor

Hajiloo N.

autor

Fathollahi H.

autor

Mehtieva S. I.

• Agricultural, Medical and Industrial Research School (AMIRS), Nuclear Science and Technology Research Institute, P. O. Box 31485-498, Karaj, Iran, Tel.: [phone], Fax: [phone],

Bibliografia

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• 2. Eaton SS, Eaton GR (2003) Electron spin relaxation times for the alanine radical in two dosimeters. Appl Radiat Isot 62;2:129–132
• 3. EN 1786 (1996) European Standard. Detection of irradiated food containing bone – method by ESR spectroscopy. European Committee for Standardization, Brussels
• 4. Mahesh K, Vij DR (eds) (1985) Techniques of radiation dosimeter. Wiley Eastern Ltd., New Delhi, India
• 5. Stachowicz W, Burlińska G, Michalik J, Dziedzic--Gocławska A, Ostrowski K (1993) The role of long-lived EPR active species produced by ionizing radiation in biological materials as used in medical, dosimetric and agricultural studies. Nukleonika 38;3:67–82
• 6. Stachowicz W, Ostrowski K, Dziedzic-Goclawska A, Komender A (1970) On free radicals evoked by radiosterilization in preserved bone grafts. In: Sterilization and preservation of biological tissues by ionizing radiation. Panel Proc Series STVPUB/247. IAEA, Vienna, pp 15–27
• 7. Ziaie F, Stachowicz W, Strzelczak G, Al-Osaimi S (1999) Using bone powder for dosimetric system EPR response under the action of gamma irradiation. Nukleonika 44;4:603–608