a Department of Physics, Jadavpur University, Calcutta, 700 032, India
b Department of Chemistry, Gurucharan College, Silchar, Assam, India
c Variable Energy Cyclotron Centre, 1/AF Bidhannagar, Calcutta, 700 064, India
Abstract:
SSNTD is one of the most commonly used detectors in the studies involving nuclear phenomena. The ease of registration of the presence of alpha particles and fission fragments has made it particularly suitable in studies where stable long exposures are needed to extract reliable information. Studies on the presence of alpha emitting nuclides in the environment assume importance since they are found to be carcinogenic. Lime samples from Silchar in Assam of Eastern India have shown the presence of spontaneous fission fragments besides alphas. In the present study we look at the ratio of the average mass distribution of these fission fragments, that gives us an indication of the presence of the traces of transuranic elements.