TY - JOUR
T1 - Electron paramagnetic resonance dose response studies for neutron irradiated human teeth
AU - Khan, Rao F.H.
AU - Aslam,
AU - Rink, W. J.
AU - Boreham, D. R.
N1 - Funding Information:
The authors wish to thank Chemical Biological Radiological and Nuclear (CBRN) Research and Technology Initiative (CRTI) of the Government of Canada for providing research support for this project. Jack Rink appreciates the generous contribution of Canada Foundation for Innovation (CFI) and Natural Sciences and Engineering Research Council (NSERC) of Canada in this research.
PY - 2004/10
Y1 - 2004/10
N2 - The dosimetric response of neutron irradiated human tooth enamel has been investigated using electron paramagnetic resonance (EPR) dosimetry. Continuous energy fast neutrons of mean energy less than 450 keV were produced from the McMaster University 3 MV K.N. Van de Graaff accelerator employing a thick lithium target via 7Li(p,n)7Be interaction. Prior to its use for various experiments, the gamma dose contamination of the neutron beams was determined at the selected proton beam energies using the tissue-equivalent proportional counter (TEPC). The neutron sensitivity (/Gy-100 mg) of human tooth enamel remained constant for various mean neutron energies ranging from 167 to 450 keV. Similarly, the EPR signal intensity remained independent of the neutron dose rate variation from 0.5 to 2.4 Gy/h.
AB - The dosimetric response of neutron irradiated human tooth enamel has been investigated using electron paramagnetic resonance (EPR) dosimetry. Continuous energy fast neutrons of mean energy less than 450 keV were produced from the McMaster University 3 MV K.N. Van de Graaff accelerator employing a thick lithium target via 7Li(p,n)7Be interaction. Prior to its use for various experiments, the gamma dose contamination of the neutron beams was determined at the selected proton beam energies using the tissue-equivalent proportional counter (TEPC). The neutron sensitivity (/Gy-100 mg) of human tooth enamel remained constant for various mean neutron energies ranging from 167 to 450 keV. Similarly, the EPR signal intensity remained independent of the neutron dose rate variation from 0.5 to 2.4 Gy/h.
KW - Accelerator-based neutron source
KW - Dose rate variations
KW - Electron paramagnetic resonance
KW - Human tooth enamel
KW - Passive neutron dosimetry
UR - http://www.scopus.com/inward/record.url?scp=4544289947&partnerID=8YFLogxK
U2 - 10.1016/j.nimb.2004.05.029
DO - 10.1016/j.nimb.2004.05.029
M3 - Article
AN - SCOPUS:4544289947
SN - 0168-583X
VL - 225
SP - 528
EP - 534
JO - Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms
JF - Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms
IS - 4
ER -