1. Materials Chemistry and Metal Fuel Cycle Group, Indira Gandhi Centre for Atomic Research , Kalpakkam 603 102 , India
2. Homi Bhabha National Institute, Training School Complex, Anushakti Nagar , Mumbai 400094 , India
3. Materials Chemistry and Metal Fuel Cycle Group, Indira Gandhi Centre for Atomic Research , Kalpakkam 603 102 , India , Tel.: +91 44 27480500 extn. 24082, 24148, Fax: +91 44 27480065