Speaker
Dr
Hasan TUNER
(Department of Physics, Faculty of Science and Literature, University of Balikesir, Balikesir, Turkey)
Description
Potential ESR dosimetric application of different compounds of sodium tartrate such as sodium tartrate dihydrate (NaTA), sodium bitartrate monohydrate (Na-bTA), and potassium sodium tartrate tetrahydrate (KNaTA) were investigated in the range of 0.5 – 50 Gy. Comparisons were also made with alanine (AL) [1], ammonium tartrate (AmTA) [2] and lithium formate (LiF) [3] samples. It is found that NaTA presents almost singlet ESR spectra with a shoulder at both sides of the singlet, while other compounds present more complex ESR spectra. From dosimetric point of view, NaTA has presented a better dose-response than other tartrate compounds (Na-bTA, KNaTA and AmTA) and AL. However NaTA has a good radiation dose response LiF has a slightly better response in the interested dose range. Nevertheless, the narrow linewidth of NaTA (~0.6 mT) makes it a good candidate to be used as a low-dose ESR dosimetric material [4].
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[2] a) Bartolotta A., D’Oca M.C., Brai M., Caputo V., De Caro V., Giannola L.I.,. Phys. Med. Biol. 46, 461–471 (2001); b) Marrale, M., Brai M., Triolo A., Bartolotta A., D’Oca M.C., Radiat. Res. 166, 802–809 (2006).
[3] a) Lund E., Gustafsson H., Danilczuk M., Sastry M., Lund A., Vestad T.A., Malinen E., Hole, E.O., Sagstuen E., Appl. Radiat. Isot. 62, 317–324 (2005); b) Vestad T.A., Malinen E., Lund A., Hole E.O., Sagstuen E., Appl. Radiat. Isot. 59, 181–188 (2003).
[4] a) Ikeya M., Hassan G.M., Sasaoka H., Kinoshita Y., Takaki S. and Yamanaka C., Appl. Radiat. Isot. 52, 1209–1215 (2000); b)Lund A., Olsson S., Bonora M., Lund E. and Gustafsson H., Spectrochim. Acta A. 58, 1301–1311 (2002).
Acknowledgements: The authors want to thank for the financial support to the Turkish Research Council (TUBITAK), grant no: 110T825.
Primary author
Dr
Hasan TUNER
(Department of Physics, Faculty of Science and Literature, University of Balikesir, Balikesir, Turkey)
Co-authors
Mr
Mehmet Bal
(Department of Physics, Institute of Science, University of Balikesir, Balikesir, Turkey.)
Mr
Mehmet Kayikci
(Department of Physics, Institute of Science, University of Balikesir, Balikesir, Turkey.)
