A5061929543- Nuclear physics research studies
- Atmospheric Ozone and Climate
- Advanced Chemical Physics Studies
- Nuclear Physics and Applications
- Atomic and Molecular Physics
- Spectroscopy and Laser Applications
- Astronomical and nuclear sciences
- Semiconductor Quantum Structures and Devices
- Nuclear reactor physics and engineering
- Advanced Semiconductor Detectors and Materials
- Atmospheric chemistry and aerosols
- Quantum Dots Synthesis And Properties
- Photochemistry and Electron Transfer Studies
- X-ray Spectroscopy and Fluorescence Analysis
- Nuclear Materials and Properties
- Integrated Circuits and Semiconductor Failure Analysis
- Quantum Chromodynamics and Particle Interactions
- GaN-based semiconductor devices and materials
- Luminescence Properties of Advanced Materials
- Molecular Spectroscopy and Structure
- High-pressure geophysics and materials
- Semiconductor materials and devices
- Metal and Thin Film Mechanics
- Glass properties and applications
- Particle accelerators and beam dynamics
Bhabha Atomic Research Centre
2015-2024
Homi Bhabha National Institute
2024
University of Mumbai
2017
Bhabha Atomic Research Center Hospital
2013-2015
Laboratoire de Physique Corpusculaire de Caen
2004-2005
École Nationale Supérieure d'Ingénieurs de Caen
2004-2005
Centre National de la Recherche Scientifique
2004-2005
Max Planck Society
1987
Max Planck Institute for Nuclear Physics
1986
Fission-fragment angular distributions in reactions of $^{10}\mathrm{B}$, $^{12}\mathrm{C}$, $^{16}\mathrm{O}$${+}^{232}$Th and $^{237}\mathrm{Np}$, $^{19}\mathrm{F}$${+}^{237}$Np have been measured. While the measured anisotropies B- C-induced fission are found to be agreement with predictions standard Halpern-Strutinsky theory, they anomalously large case O- F-induced fission. Such a discontinuous behavior anisotropy respect entrance-channel mass-to-charge asymmetry provides an...
The electronic absorption spectrum of N,N-dimethylformamide (DMF) is studied in the 45 000–80 000 cm−1 (5.6–9.9 eV) region using synchrotron radiation. vacuum ultraviolet (VUV) comprises mostly Rydberg series ns, np, and nd types converging to first two ionization potentials (IPs). Quantum defect values obtained are consistent with excitation an electron from highest occupied molecular orbitals localized on nitrogen (4a″) oxygen (16a′); addition, 3s transition third IP (3a″) observed at 8.95...
The multiplicities of prescission protons and \ensuremath{\alpha} particles in the reaction $^{19}\mathrm{F}$${+}^{232}$Th at 104, 110, 116, 118 MeV have been measured. observed are much larger than prediction statistical model without introduction fission delay. An analysis proton data along with that for neutrons (measured earlier) has made using deformed optical deformation-dependent particle binding energies. Simultaneous fits to charged neutron required a total time scale range...
The fission fragment anisotropies for ${}^{12}\mathrm{C}{+}^{198}\mathrm{Pt}$ populating ${}^{210}\mathrm{Po}$ are found to be systematically higher than that ${}^{12}\mathrm{C}{+}^{194}\mathrm{Pt}$, the difference decreasing over energy range $1.0\ensuremath{\le}E/{V}_{B}\ensuremath{\le}1.4$. parameters required a statistical model analysis of data were constrained by cross section and measuring evaporation residue sections. While measured ${}^{12}\mathrm{C}{+}^{194}\mathrm{Pt}$ in...
In order to determine the relative importance of role played by inelastic excitations and transfer channels colliding nuclei, in near-barrier fusion enhancement, cross sections have been measured for ${}^{12}\mathrm{C}{+}^{194,198}\mathrm{Pt}$ energy range $0.9<~{E/V}_{B}<~1.2.$ Additional data quasielastic nucleon(s)-exchange also at an ${1.2V}_{B}.$ The strength form factors required simplified coupled-channels calculations has obtained from reaction measurements using a semiclassical...
Fission fragment angular distributions have been measured for ${}^{19}\mathrm{F}{+}^{194,198}\mathrm{Pt}$ systems in the laboratory energy range from 88 to 104 MeV and fission anisotropy data compared with statistical saddle-point model calculations. The ${}^{19}\mathrm{F}{+}^{198}\mathrm{Pt}{(}^{217}\mathrm{Fr}$ compound nucleus neutron number ${N}_{c}=130)$ are good accord calculations over entire of bombarding energies except at highest point. However,...
The electronically excited states of ethyl bromide and its deuterated isotopologue (C2H5Br C2D5Br) are studied using synchrotron radiation based photoabsorption spectroscopy in the wavenumber region 50 000-86 000 cm-1. A detailed spectral analysis supported by quantum chemical calculations is presented. complex Rydberg series structure comprising nsa1, npa1, npe, nda1 nde series, converging to each two spin-orbit split components first ionization potential (2E3/2 2E1/2) observed for both...
In(Ga)As/GaAs-based quantum dot infrared photodetectors (QDIPs) have emerged as one of the most suitable devices for detection. However, suffer from lower efficiencies due to a low fill-factor (∼20%–25%) dots. Here, we report post-growth technique improving QDIP performance using energy light ion (H−) implantation. At high bias, there is evidence suppression in field-assisted tunneling component dark current. Enhancement peak detectivity (D*), measure signal-to-noise ratio, by more than...
The electronic absorption spectrum of diiodomethane in the 30 000–95 000 cm−1 region is investigated using synchrotron radiation; 50 000–66 500 reported for first time. bands 000–50 are attributed to valence transitions, while vacuum ultraviolet (VUV) (50 cm−1) dominated by several Rydberg series converging four ionization potentials CH2I2 at 9.46, 9.76, 10.21, and 10.56 eV corresponding removal an electron from outermost 3b2, 2b1, 1a2, 4a1 non-bonding orbitals, respectively. ns, np, nd type...
Differential cross sections for the elastic scattering of alpha particles from $^{209}\mathrm{Bi}$ have been measured over a wide angular range at number energies between 24 and 70 MeV. The present data along with existing in this energy analyzed using optical model both phenomenological double-folded potentials. application dispersion relation Mahaux, Ng\^o, Satchler allows reproduction observed dependence real part potential. A nearside-farside decomposition clearly reveals large-angle...