http://192.168.1.40:8080/xmlui/handle/123456789/1115 2026-05-31T13:43:54Z http://192.168.1.40:8080/xmlui/handle/123456789/1954 Consistency of nuclear thermometric measurements at moderate excitation Rana, T. K.; Bhattacharya, C.; Kundu, S.; Banerjee, K.; Bhattacharya, Sabita; Dey, A.; Ghosh, T. K.; Mukherjee, G; Meena, J.K; Gupta, Dhruba; Mukhopadhyay, S.; Pandit, D.; Banerjee, S. R.; Roy, A.; Dhara, P. A comparison of various thermometric techniques used for the estimation of nuclear temperature has been made from the decay of hot composite (32)S* produced in the reaction (20)Ne (145 MeV) + (12)C. It is shown that the temperatures estimated by different techniques, known to vary significantly in the Fermi energy domain, are consistent with each other within experimental limits for the system studied here. DOI: 10.1103/PhysRevC.78.027602 2008-08-28T00:00:00Z http://192.168.1.40:8080/xmlui/handle/123456789/1953 Fragment emission studies of the 16O+12C reaction Kundu, S.; Dey, A.; Banerjee, K.; Rana, T. K.; Muhkopadhayay, S.; Gupta, Dhruba; Saha, R.; Bhattacharya, Sabita; Bhattacharya, C. The inclusive energy distributions of the fragments (3 <= Z <= 5) emitted in the reaction (16)O+(12)C have been measured in the angular range 9(degrees) to 29(degrees), at the energies 117, 125, 145, and 160 MeV, respectively. The centroids of the fragments energy distributions follow Viola systematics, which suggest that the fragments are emitted from a fully energy relaxed composite-as expected for both FF and orbiting processes. The center of mass angular distributions of the fragments B, Be, and Li obtained at all the bombarding energies follow 1/sin theta(c.m.) like variation-which further corroborates the conjecture of emission from fully equilibrated composite. The average < Q > values for the fragments B, Be, and Li are found to be independent of the center of mass emission angles, which further suggest that at all angles, the fragments are emitted from completely equilibrated source at all incident energies considered here. The yields of the fragments Li and Be are in agreement with statistical-model predictions. The enhanced yields of entrance channel fragment B indicate the survival of orbiting-like process in (16)O+(12)C system at these energies. DOI: 10.1103/PhysRevC.78.044601 2008-10-01T00:00:00Z http://192.168.1.40:8080/xmlui/handle/123456789/1677 Light-charged-particle emission from hot S-32* formed in Ne-20+C-12 reaction Dey, A.; Bhattacharya, Sabita; Bhattacharya, C.; Banerjee, K.; Rana, T. K.; Kundu, S.; Banerjee, S. R.; Mukhopadhyay, S.; Gupta, Dhruba; Saha, R. Inclusive energy distributions for light charged particles (p, d, t and alpha) have been measured in the Ne-20 (158, 170, 180, 200MeV)+ C-12 reactions in the angular range 10 degrees-50 degrees. Exclusive light-charged-particle energy distribution measurements were also done for the same system at 158MeV bombarding energy by in-plane light charged particle - fragment coincidence. Pre-equilibrium components have been separated out from proton energy spectra using the moving source model considering two sources. The data have been compared with the predictions of the statistical model code CASCADE. It has been observed that significant deformation effects were needed to be introduced in the compound nucleus in order to explain the shape of the evaporated d, t energy spectra. For protons, evaporated energy spectra were rather insensitive to nuclear deformation, though angular distributions could not be explained without deformation. The decay sequence of the hot S-32 nucleus has been investigated through exclusive light-charged-particle measurements using the Ne-20 (158MeV)+ C-12 reaction. Information on the sequential decay chain has been extracted through a comparison of the experimental data with the predictions of the statistical model. It is observed from the present analysis that exclusive light-charged-particle data may be used as a powerful tool to probe the decay sequence of hot light compound systems. DOI: 10.1140/epja/i2009-10772-y 2009-07-01T00:00:00Z http://192.168.1.40:8080/xmlui/handle/123456789/1672 Variation of neutron detection characteristics with dimension of BC501A neutron detector Banerjee, K.; Ghosh, T. K.; Kundu, S.; Rana, T. K.; Bhattacharya, C.; Meenaa, J. K.; Mukherjee, G.; Mali, P.; Gupta, Dhruba; Mukhopadhyay, S.; Pandit, D.; Banerjee, S. R.; Bhattacharya, Sabita; Bandyopadhyay, T.; Chatterjee, S. A systematic study of the variation of neutron detection characteristics (efficiency, pulse shape discrimination) and the intrinsic time resolution with the active volume of the detector has been carried out with liquid scintillator (BC501A)-based neutron detectors of various dimensions designed and fabricated for this purpose. Energy-dependent neutron detection efficiency has been measured using associated particle technique and its dependence on detector dimension has been studied. The measured efficiencies have been compared with those obtained from GEANT4 simulations. DOI: 10.1016/j.nima.2009.07.034 2009-09-21T00:00:00Z