1. Radiation Applications Research School, Nuclear Science and Technology Research Institute, North Karegar St., P. O. Box 11365-3486, Tehran, Iran
2. Nuclear Agriculture Research School, Nuclear Science and Technology Research Institute, North Karegar St., P. O. Box 11365-3486, Tehran, Iran
3. Radioisotope Products and Radiation Technology Section, Division of Physical and Chemical Sciences, Department of Nuclear Sciences and Applications, International Atomic Energy Agency, Vienna. International Centre, PO Box 100, 1400 Vienna, Austria
4. Pars Isotope Company, Tehran, Iran