Muhtasham Hussain
Physics Department, University of Dacca, Dacca, East-Pakistan
J. C. Dutt
Atomic Energy Commission (AEC), Dacca, East-Pakistan
Nurun Nabi Khondker
Atomic Energy Commission (AEC), Dacca, East-Pakistan
N. I. Molla
Atomic Energy Commission (AEC), Dacca, East-Pakistan