R K Bhowmik
Articles written in Pramana – Journal of Physics
Volume 29 Issue 6 December 1987 pp 559-575 Nuclear Physics
Four quasi-particle level at 2256 keV in182Re
Y K Agarwal C V K Baba D Bhattacharya S K Bhattacherjee R K Bhowmik V M Datar H C Jain A Roy
In-beam nuclear spectroscopic studies of182Re, following the reaction181Ta(
Volume 53 Issue 3 September 1999 pp 425-429 Nuclear Structure And Dynamics
Transition strengths and shapes of 2-qp bands in 74Se and 76Kr
G Mukherjee P Joshi S N Roy S Datta R P Singh S Muralithar R K Bhowmik
The lifetimes of the states of −ve parity 2-qp bands of
Volume 53 Issue 3 September 1999 pp 559-562 Nuclear Reactions At Near And Sub-Barrier Energies
Coupled channels calculations for 18O and 16O break-up reaction
α angular correlations were calculated using the coupled channels formalism for 16,18O break-up reactions. Prominent
Volume 57 Issue 1 July 2001 pp 125-133 Invited Papers, Others
Instrumentation for multi-detector arrays
The new generation of detector arrays require complex instrumentation and data acquisition system to ensure increased reliability of operation, high degree of integration, software control and faster data handling capability. The main features of some of the existing multi-detector arrays like MSU 4π array, Gammasphere and Eurogam are summarized. The instrumentation for the proposed INGA array in India is discussed.
Volume 57 Issue 1 July 2001 pp 215-218 Contributed Papers, Others
The automatic liquid nitrogen filling system for GDA detectors
Rakesh Kumar A J Malyadri S Muralithar Ruby Shanti S K Saini Kusum Rani B P Ajith Kumar Rajesh Kumar R K Bhowmik
An indigenously developed automatic liquid nitrogen (LN2) filling system has been installed in gamma detector array (GDA) facility at Nuclear Science Centre. Electro-pneumatic valves are used for filling the liquid nitrogen into the high purity germanium detector cryostat. The temperature of the out-flowing gas/liquid from the cryostat is monitored using platinum resistor thermometer. The program allows for automatic filling at regular intervals with temperature monitoring from a remote terminal.
Volume 59 Issue 5 November 2002 pp 849-858
Superconducting linear accelerator system for NSC
P N Prakash T S Datta B P Ajith Kumar J Antony P Barua J Chacko A Choudhury G K Chadhari S Ghosh S Kar S A Krishnan Manoj Kumar Rajesh Kumar A Mandal D S Mathuria R S Meena R Mehta K K Mistri A Pandey M V Suresh Babu B K Sahu A Sarkar S S K Sonti A Rai S Venkatramanan J Zacharias R K Bhowmik A Roy
This paper reports the construction of a superconducting linear accelerator as a booster to the 15 UD Pelletron accelerator at Nuclear Science Centre, New Delhi. The LINAC will use superconducting niobium quarter wave resonators as the accelerating element. Construction of the linear accelerator has progressed sufficiently. Details of the entire accelerator system including the cryogenics facility, RF electronics development, facilities for fabricating niobium resonators indigenously, and present status of the project are presented.
Volume 59 Issue 5 November 2002 pp 881-884
First on-line test of the LINAC superbuncher at nuclear science centre
S Ghosh R Mehta P N Prakash A Mandal G K Chaudhari S S K Sonti D S Mathuria K K Mistry A Rai S Rao P Barua A Pandey B K Sahu A Sarkar G Joshi S K Datta R K Bhowmik A Roy
An on-line test of the LINAC superbuncher at Nuclear Science Centre has been successfully performed. DC O7+ beam of nominal energy 92 MeV was accelerated through the superbuncher resonator, operating at a field of 4.54 MV/m. The total energy gain of the beam was measured to be 4.5 MeV. For the pulsed beam test a phase locked bunched beam of O7+ of nominal energy 92 MeV, FWHM 1.3 ns from the pre-tandem multiharmonic buncher was injected into the superbuncher. By properly adjusting the phase and amplitude of the resonator, the best FWHM of the bunched beam was measured to be 185 ps near the entrance of the first LINAC module. Fully depleted cooled surface barrier detector was used for measuring the time width. In a separate experiment the intrinsic time resolution of the same detector was measured to be 134 ps. Consequently the intrinsic time width of the bunched beam, after correcting for the detector resolution, would be 127 ps. Details of the experiment and results are presented.
Volume 97, 2023
Continuous Article Publishing mode
Click here for Editorial Note on CAP Mode