NSR Query Results
Output year order : Descending NSR database version of April 11, 2024. Search: Author = R.G.Thomas Found 62 matches. 2024HI02 Chin.Phys.C 48, 024001 (2024) A.Hingu, S.Mukherjee, S.Parashari, A.Sangeeta, A.Gandhi, M.Upadhyay, M.Choudhary, S.Bamal, N.Singh, G.Mishra, S.De, S.Sood, S.Prasad, G.Saxena, A.Kumar, R.G.Thomas, B.K.Agrawal, K.Katovsky, A.Kumar Investigation of 58Ni(n, p)58Co reaction cross-section with covariance analysis NUCLEAR REACTIONS 58Ni(n, p), 115In(n, n'), E=1.7-2.7 MeV; measured reaction products, Eγ, Iγ; deduced σ and correlation matrix. Comparison with EXFOR, ENDF/B-VIII.0, JEFF-3.3, JENDL-4.0, and CENDL-3.2 libraries, TALYS calculations. The Folded Tendem Ion Accelerator (FOTIA) facility at the Bhabha Atomic Research Centre (BARC), Mumbai, India.
doi: 10.1088/1674-1137/ad0e5a
2024TA02 Nucl.Phys. A1042, 122805 (2024) N.S.Tawade, R.Tripathi, T.N.Nag, S.Patra, C.S.Datrik, P.K.Pujari, R.G.Thomas, G.Mishra, A.Kumar, S.De, H.Kumawat Measurement of fast neutron induced (n, γ) reaction cross-section of 152Sm, 154Sm and 150Nd in the energy range of 0.8 to 2 MeV NUCLEAR REACTIONS 152,154Sm, 150Nd, 86Sr, 127I(n, γ), Sr(n, n')87Sr, E=0.8-2 MeV; measured reaction products, Eγ, Iγ; deduced σ and uncertainties. Comparison with available data. Folded tandem ion accelerator (FOTIA), Bhabha Atomic Research Centre, Mumbai, India.
doi: 10.1016/j.nuclphysa.2023.122805
2023UP01 J.Phys.(London) G50, 125107 (2023) M.Upadhyay, M.Choudhary, N.Singh, A.Gandhi, A.Sharma, S.Bamal, A.Hingu, S.Mukherjee, G.Mishra, S.De, L.S.Danu, S.Sood, S.Prasad, A.Kumar, R.G.Thomas, A.Kumar Measurement of neutron induced reaction cross-section of 99Mo NUCLEAR REACTIONS 98Mo(n, γ), 115In(n, n'), E=1.67, 2.06, 2.66 MeV; measured reaction products, Eγ, Iγ; deduced σ and covariances. Comparison with the EXFOR library. The Folded Tandem Ion Accelerator (FOTIA) Facility, Bhabha Atomic Research Centre (BARC), Mumbai, India.
doi: 10.1088/1361-6471/ad0417
2022DE33 Eur.Phys.J. A 58, 217 (2022) S.De, R.G.Thomas, G.Mishra, A.Mitra, Ajay Kumar Prompt emission of γ-rays and neutrons from the fast neutron induced fission of 232Th at neutron energies near and above the fission threshold RADIOACTIVITY 252Cf(SF); measured decay products, Eγ, Iγ, En, In; deduced prompt fission γ-rays and neutron spectra. NUCLEAR REACTIONS 232Th(n, F), E=1.5, 2.1, 2.8 MeV; measured reaction products, Eγ, Iγ, En, In; deduced prompt fission γ-rays and neutrons, average energy of neutrons and γ-rays, prompt fission neutron spectra (PFNS). Comparison with GEF calculations and available data. The Folded Tandem Ion Accelerator (FOTIA) facility, BARC, Mumbai.
doi: 10.1140/epja/s10050-022-00877-6
2022HI12 Phys.Rev. C 106, 064614 (2022) D.J.Hinde, R.du Rietz, D.Y.Jeung, K.J.Cook, M.Dasgupta, E.C.Simpson, R.G.Thomas, M.Evers, C.J.Lin, D.H.Luong, L.R.Gasques, R.Rafiei, A.Wakhle, C.Simenel Experimental investigation of the role of shell structure in quasifission mass distributions NUCLEAR REACTIONS 154Sm, 162Dy, 170Er, 174Yb, 186W, 192Os, 196Pt, 200Hg(48Ti, F), E=198-245 MeV; measured reaction products; deduced fission fragment mass-angle distributions, ratio of the fusion-fission yield to the total fission yield, mass-ratio spectra, compound nuclei forming probability. Pointed that with increasing target (or equivalently compound nucleus)atomic number, a rapid transition occurs from dominant fusion-fission to dominantly quasifission. Comparison to GEF calculations. Position-sensitive multiwire proportional counters (MWPCs) at 14UD tandem electrostatic accelerator (Australian National University).
doi: 10.1103/PhysRevC.106.064614
2020DE17 Eur.Phys.J. A 56, 116 (2020) S.De, G.Mishra, R.G.Thomas, A.Kumar, A.Mitra, B.K.Nayak Measurement of prompt fission neutron and gamma spectra in the fast neutron induced fission o232Th
doi: 10.1140/epja/s10050-020-00127-7
2020PA33 Phys.Rev. C 102, 034618 (2020) P.N.Patil, N.M.Badiger, B.K.Nayak, S.Santra, P.C.Rout, A.Pal, G.Mohanto, K.Mahata, K.Ramachandran, R.G.Thomas, E.T.Mirgule, N.Madhavan, R.Gandhi, M.M.Hosamani, A.Vinayak, A.Kundu, S.De, S.P.Behera, B.Srinivasan, A.Saxena, V.D.Bharud Pre-scission neutron multiplicity in the 32S + 184W reaction NUCLEAR REACTIONS 184W(32S, F)216Th*, E=180 MeV or E*=71.3 MeV; measured complimentary fission fragments, E(n), I(n), (fragment)(fragment)n-correlations, (fragment)n(θ) using single-sided silicon strip detectors for fission fragments, and an array of 14 liquid scintillators for neutrons at the BARC-TIFR 14UD Pelletron-Linac accelerator facility; deduced double differential neutron multiplicity spectra, pre-scission and post-scission neutron multiplicities, neck coordinate versus elongation for fusion and nonfusion trajectories. Comparison with statistical model calculations using JOANNE2 code, and with dynamical model calculations using HICOL code.
doi: 10.1103/PhysRevC.102.034618
2020SU11 Eur.Phys.J. A 56, 80 (2020) V.Suman, C.Sunil, S.Pal, V.Nanal, K.Biju, R.G.Thomas, A.K.Mohanty Double differential neutron yield from 12C incident on thick 12C target at 116 MeV
doi: 10.1140/epja/s10050-020-00082-3
2019CH25 Europhys.Lett. 126, 12002 (2019) R.K.Choudhury, Ajay Kumar, R.G.Thomas, G.Mishra, A.Mitra, B.K.Nayak, A.Saxena Anomalous oscillatory features in neutron emission from D + D fusion in palladium at 100 keV implantation energy NUCLEAR REACTIONS 2H(d, X), E=100 keV; measured reaction products, En, In; deduced neutron yields. Comparison with GEANT4 calculations, EXFOR library.
doi: 10.1209/0295-5075/126/12002
2017PA41 Phys.Rev. C 96, 054613 (2017) A.Parihari, G.Mohanto, G.Kaur, A.Jhingan, K.Mahata, R.G.Thomas, P.C.Rout, E.T.Mirgule, V.V.Desai, B.Srinivasan, C.Joshi, V.Mishra, M.Kushwaha, S.Gupta, D.Sarkar, S.V.Suryanarayana, A.Shrivastava, N.L.Singh, A.Misra, B.K.Nayak, A.Saxena Experimental study of the transfer-induced fission fragment angular distribution in the 6Li + 238U reaction NUCLEAR REACTIONS 238U(6Li, F), E=36, 40 MeV; measured transfer-induced fission fragments, two-dimensional E-ΔE spectrum, σ(θ, E), fragment anisotropies, transfer-induced fragment angular distributions for α and d transfers using multiwire proportional counters (MWPCs) at BARC-TIFR 14-UD Pelletron-LINAC facility. Comparison with pre-equilibrium fission (PEF) model calculations.
doi: 10.1103/PhysRevC.96.054613
2016SH01 Nucl.Phys. A945, 67 (2016) A.Shamlath, M.Shareef, E.Prasad, P.Sugathan, R.G.Thomas, A.Jhingan, S.Appannababu, A.K.Nasirov, A.M.Vinodkumar, K.M.Varier, C.Yadav, B.R.S.Babu, S.Nath, G.Mohanto, Ish Mukul, D.Singh, S.Kailas Fission fragment mass distribution studies in 30Si + 180Hf reaction NUCLEAR REACTIONS 180Hf(30Si, F), E=128-148 MeV;194Pt(16O, F), E not given; measured fission fragments using two large area position-sensitive MWPCs; deduced fragment mass distribution; calculated fragment mass distribution, potential energy surface using CCFULL code, ratio quasifission σ to capture σ using DNS (Double Nuclear System) model.
doi: 10.1016/j.nuclphysa.2015.09.011
2015LA18 J.Phys.(London) G42, 095105 (2015) P.V.Laveen, E.Prasad, N.Madhavan, S.Pal, J.Sadhukhan, S.Nath, J.Gehlot, A.Jhingan, K.M.Varier, R.G.Thomas Fusion measurements for the 18O + 194Pt reaction and search for neutron shell closure effects NUCLEAR REACTIONS 194Pt(18O, X)212Rn, E=77.7-105.3 MeV; measured reaction products, fission fragments; deduced evaporation residue σ, fission fragments σ(θ). Comparison with statistical model analysis of the evaporation residue data employing shell-corrected free energy fission barrier height.
doi: 10.1088/0954-3899/42/9/095105
2015RA15 Pramana 85, 335 (2015) K.Ramachandran, A.Chatterjee, A.Navin, K.Mahata, A.Shrivastava, V.Tripathi, S.Kailas, V.Nanal, R.G.Pillay, A.Saxena, R.G.Thomas, D.R.Chakrabarty, V.M.Datar, S.Kumar, P.K.Sahu Fission time-scale from the measurement of pre-scission light particles and γ-ray multiplicities NUCLEAR REACTIONS 175Lu(28Si, X), E=159 MeV; measured fission products, En, In, Ep, Ip, Eα, Iα; deduced GDR γ-ray multiplicity spectra, pre-saddle, saddle-to-scission, total fission time scale.
doi: 10.1007/s12043-015-1048-y
2015TH04 Pramana 85, 303 (2015) Fission fragment mass and angular distributions: Probes to study non-equilibrium fission NUCLEAR REACTIONS 232Th(12C, X), (10B, X), (11B, X), E(cm)<70 MeV; analyzed available data; deduced experimental observables in non-equilibrium fission dependence to crucially depend on the interaction time (sticking time) of the dinuclear complex with respect to the characteristic relaxation time of various degrees of freedom, before it decays into binary fission-like fragments.
doi: 10.1007/s12043-015-1044-2
2015TR03 Phys.Rev. C 92, 024610 (2015) R.Tripathi, S.Sodaye, K.Sudarshan, B.K.Nayak, A.Jhingan, P.K.Pujari, K.Mahata, S.Santra, A.Saxena, E.T.Mirgule, R.G.Thomas Fission fragment mass distributions in 35Cl + 144, 154Sm reactions NUCLEAR REACTIONS 144,154Sm(35Cl, F), E=152.5, 156.1, 163.7 MeV; measured time-of-flight of the fission fragments and their mass distributions at BARC-TIFR Pelletron LINAC facility. Comparison with experimental data for 142Nd(40Ca, X) reaction. Fits of fragment mass distribution to Gaussian distribution. Relevance to asymmetric fission in A≈180 region.
doi: 10.1103/PhysRevC.92.024610
2015YA12 Phys.Rev. C 92, 014611 (2015) C.Yadav, R.G.Thomas, A.K.Mohanty, S.S.Kapoor Deduction of compound nucleus formation probability from the fragment angular distributions in heavy-ion reactions NUCLEAR REACTIONS 182W(32S, X)214Th*, 197Au(18O, X)215Fr*, 197Au(26Mg, X)223Pa*, 197Au(30Si, X)227Np*, 197Au(32S, X)229Am*, 197Au(36S, X)233Am*, 204Pb(11B, X)215Fr*, 208Pb(16O, X)224Th*, 208Pb(19F, X)227Pa*, 208Pb(24Mg, X)232Pu*, 208Pb(28Si, X)236Cm*, 208Pb(32S, X)240Cf*, 232Th(12C, X)244Cm*, 232Th(16O, X)248Cf*, 238U(16O, X)254Fm*, E(cm)/Vb-1.05-1.24 MeV; analyzed fragment angular distributions, mass asymmetry, compound nucleus fissility, and effective fissility; deduced PCN the probability of compound nucleus formation. Pre-equilibrium fission formalism. Relevance to heavy-element formation cross sections.
doi: 10.1103/PhysRevC.92.014611
2012LI03 Phys.Rev. C 85, 014611 (2012); Erratum Phys.Rev. C 96, 029901 (2017) C.J.Lin, R.du Rietz, D.J.Hinde, M.Dasgupta, R.G.Thomas, M.L.Brown, M.Evers, L.R.Gasques, M.D.Rodriguez Systematic behavior of mass distributions in 48Ti-induced fission at near-barrier energies NUCLEAR REACTIONS 144,154Sm, 162Dy, 174Yb, 186W, 192Os, 196Pt, 200Hg, 208Pb(48Ti, F), E=206-296 MeV; measured fission fragment spectra (fragment)(fragment)-coin, fission yields; deduced mass-ratio distributions, mass widths as functions of excitation energy of compound nucleus, and excitation energies at saddle and scission points, mass-width enhancement factors. Comparison with saddle-point and scission-point model calculations.
doi: 10.1103/PhysRevC.85.014611
2012PR04 Nucl.Phys. A882, 62 (2012) E.Prasad, K.M.Varier, R.G.Thomas, A.M.Vinodkumar, K.Mahata, S.Appannababu, P.Sugathan, K.S.Golda, B.R.S.Babu, A.Saxena, B.V.John, S.Kailas Fission fragment angular distribution measurements for 16O + 194Pt reaction at energies near the Coulomb barrier NUCLEAR REACTIONS 194Pt(16O, F), E=79-90 MeV; measured fission E(fragment), I(fragment, θ); calculated σ(θ), fission barrier, ER σ, neutron multiplicity using SSPM (saddle point statistical model) PACE code and RFRM (rotating FR model) moments of inertia; deduced fission fragments σ(θ), σ, fission probability, fission barrier, level density parameters.
doi: 10.1016/j.nuclphysa.2012.03.005
2012YA13 Phys.Rev. C 86, 034606 (2012) C.Yadav, R.G.Thomas, R.K.Choudhury, P.Sugathan, A.Jhingan, S.Appannababu, K.S.Golda, D.Singh, Ish Mukul, J.Gehlot, E.Prasad, H.J.Wollersheim Evidence of quasifission in asymmetric reactions forming the 250Cf compound system NUCLEAR REACTIONS 238U(12C, X)250Cf(*), E=61-76 MeV; 232Th(18O, X)250Cf(*), E=80-96 MeV; measured fission fragment distributions, TOF, mass ratio versus parallel velocity plots, mass-angle correlations, fission fragment mass distribution. Evidence of quasifission in the 18O+232Th system.
doi: 10.1103/PhysRevC.86.034606
2011AP01 Phys.Rev. C 83, 034605 (2011) S.Appannababu, S.Mukherjee, B.K.Nayak, R.G.Thomas, P.Sugathan, A.Jhingan, E.Prasad, D.Negi, N.N.Deshmukh, P.K.Rath, N.L.Singh, R.K.Choudhury Fission fragment mass distributions in reactions forming the 213Fr compound nucleus NUCLEAR REACTIONS 186W(27Al, X), E=123-140 MeV; 197Au(16O, X), E=79-100 MeV; measured fission fragment spectra; deduced density plots for mass ratio vs center of mass angle, mass ratio distributions 213Fr; deduced mass variance. Comparison with theoretical calculations.
doi: 10.1103/PhysRevC.83.034605
2011AP02 Phys.Rev. C 83, 067601 (2011); Pub Note Phys.Rev. C 83, 069902 (2011) S.Appannababu, R.G.Thomas, L.S.Danu, P.K.Rath, Y.K.Gupta, B.V.John, B.K.Nayak, D.C.Biswas, A.Saxena, S.Mukherjee, R.K.Choudhury Fission fragment angular distributions in the 9Be + 232Th reaction NUCLEAR REACTIONS 232Th(9Be, X), E=39, 41, 44, 50 MeV; measured fission fragment spectra, σ(E, θ). Comparison with standard statistical saddle-point model (SSPM), and the preequilibrium fission (PEQ) model. Comparison of fission anisotropies for projectiles of 7Li, 9Be, 11B, 12C, 16O and 19F on 232Th target.
doi: 10.1103/PhysRevC.83.067601
2011DU02 Phys.Rev.Lett. 106, 052701 (2011) R.du Rietz, D.J.Hinde, M.Dasgupta, R.G.Thomas, L.R.Gasques, M.Evers, N.Lobanov, A.Wakhle Predominant Time Scales in Fission Processes in Reactions of S, Ti and Ni with W: Zeptosecond versus Attosecond NUCLEAR REACTIONS 184W(64Ni, F), E=310-341 MeV; 186W(48Ti, F), E= 220-260 MeV; 186W(34S, F), E=149-189 MeV; measured quasifission products; deduced mass-angle distributions, time scale differences. Comparison with CCFULL calculations.
doi: 10.1103/PhysRevLett.106.052701
2011GU19 Phys.Rev. C 84, 031603 (2011) Y.K.Gupta, D.C.Biswas, R.K.Choudhury, A.Saxena, B.K.Nayak, B.John, K.Ramachandran, R.G.Thomas, L.S.Danu, B.N.Joshi, K.Mahata, S.K.Pandit, A.Chatterjee Systematics of pre- and near-scission α-particle multiplicities in heavy-ion-induced fusion-fission reactions NUCLEAR REACTIONS 232Th(11B, X), E=62 MeV; measured E(α), α(fission fragment)-coin, α-particle multiplicity spectra; deduced prescission and near-scission components. Systematics of α(pre-scission) and α(near-scission) σ for Ag+37Cl, 124Sn+37Cl, 141Pr+28Si, 164,167,170Er+28Si, 175Lu+28Si, 181Ta+19F, 197Au+12C, 197Au+16O, 197Au+19F, 197Au+28Si, 208Pb+19F, 208Pb+28Si, 232Th+16O, 232Th+19F, 232Th+28Si, 232Th+40Ar systems.
doi: 10.1103/PhysRevC.84.031603
2010DA03 Phys.Rev. C 81, 014311 (2010) L.S.Danu, D.C.Biswas, A.Saxena, A.Shrivastava, A.Chatterjee, B.K.Nayak, R.G.Thomas, R.K.Choudhury, R.Palit, I.Mazumdar, P.Datta, S.Chattopadhyay, S.Pal, S.Bhattacharya, S.Muralithar, K.S.Golda, R.K.Bhowmik, J.J.Das, R.P.Singh, N.Madhavan, J.Gerl, S.K.Patra, L.Satpathy Fine structure dips in the fission fragment mass distribution for the 238U(18O, f) reaction NUCLEAR REACTIONS 238U(18O, F)Sr/Zr/Mo/Ru/Pd/Cd/Sn/Te/Xe/Ba/Ce/Nd/Sm, E=100 MeV; measured Eγ, Iγ, γγ-coin, fission fragment mass distribution and yields of Sr (A=90-96), Zr (A=96-102), Mo (A=98-108), Ru (A=104-112), Pd (A=108-116), Cd (A=114-122), Sn (A=116-128), Te (A=124-134), Xe (A=130-138), Ba (A=136-144), Ce (A=142-148), Nd (A=146-152) and Sm (A=150-158) using INGA array. Discussed effect of nuclear structure in the dynamical evolution of fissioning nucleus. 128Te; measured Eγ and γγ-coin.
doi: 10.1103/PhysRevC.81.014311
2010PR05 Phys.Rev. C 81, 054608 (2010) E.Prasad, K.M.Varier, R.G.Thomas, P.Sugathan, A.Jhingan, N.Madhavan, B.R.S.Babu, R.Sandal, S.Kalkal, S.Appannababu, J.Gehlot, K.S.Golda, S.Nath, A.M.Vinodkumar, B.P.A.Kumar, B.V.John, G.Mohanto, M.M.Musthafa, R.Singh, A.K.Sinha, S.Kailas Conclusive evidence of quasifission in reactions forming the 210Rn compound nucleus NUCLEAR REACTIONS 186W(24Mg, X)210Rn, E=111-125 MeV; 194Pt(16O, X)210Rn, E=75-102 MeV; measured fission fragment mass ratio distributions and mass ratio widths. Comparison with coupled-channel calculations.
doi: 10.1103/PhysRevC.81.054608
2010PR08 Nucl.Phys. A834, 208c (2010) E.Prasad, K.M.Varier, B.R.S.Babu, N.Madhavan, K.S.Golda, S.Nath, B.P.A.Kumar, J.J.Das, J.Gehlot, P.Sugathan, A.Jhingan, A.K.Sinha, B.R.Behera, R.Sandal, H.Singh, R.Singh, R.G.Thomas, S.Kailas Study of fission fragment mass distribution for 16O + 194Pt reaction NUCLEAR REACTIONS 194Pt(16O, F), E=75-102 MeV; measured fission fragment mass and angular distributions using TOF method. Comparison with calculations.
doi: 10.1016/j.nuclphysa.2009.12.042
2009AP03 Phys.Rev. C 80, 024603 (2009) S.Appannababu, S.Mukherjee, N.L.Singh, P.K.Rath, G.Kiran Kumar, R.G.Thomas, S.Santra, B.K.Nayak, A.Saxena, R.K.Choudhury, K.S.Golda, A.Jhingan, R.Kumar, P.Sugathan, H.Singh Absence of entrance channel effects in fission fragment anisotropies of the 215Fr compound nucleus NUCLEAR REACTIONS 197Au(18O, X)215Fr, E=77.7-96.7 MeV; 204Pb(11B, X)215Fr, E=51.5-63.5 MeV; measured fission fragment angular distributions and anisotropies of the 215Fr compound nucleus; deduced fission excitation functions, fusion barrier distributions. Comparison with standard saddle-point statistical model (SSPSM) calculations.
doi: 10.1103/PhysRevC.80.024603
2009GA07 Phys.Rev. C 79, 034605 (2009) L.R.Gasques, D.J.Hinde, M.Dasgupta, A.Mukherjee, R.G.Thomas Suppression of complete fusion due to breakup in the reactions 10, 11B + 209Bi NUCLEAR REACTIONS 209Bi(10B, X), (11B, X)209Rn/210Rn/211Rn/212Rn/213Rn/213Ra/214Ra/215Ra/216Ra/217Ra/210Po/211Po/210At/211At/212At/213At/, E(cm)=52-72 MeV; measured Eα, σ, complete fusion cross section, fission σ, summed σ for (xn), summed σ for (pxn), summed σ for (xn), summed σ for (αxn), summed σ for (xn); deduced complete fusion suppression factors and approximate fraction of incomplete fusion as a function of breakup threshold. Comparisons with cross sections for 186W(30Si, X) reaction. 209Bi(10B, X), (11B, X), E=5-7.5 MeV/nucleon; 209Bi(7Li, X), (6Li, X), E=3.9-7.5 MeV/nucleon; 209Bi(α, X), E=7.5-9.3 MeV/nucleon; deduced empirical fission probabilities. Single-barrier penetration model (SBPM) calculations using Sao Paulo potential of fusion process without breakup, and statistical model calculations.
doi: 10.1103/PhysRevC.79.034605
2008AJ01 Phys.Rev. C 77, 021601 (2008) B.P.Ajitkumar, K.M.Varier, B.V.John, A.Saxena, B.K.Nayak, D.C.Biswas, R.G.Thomas, S.Kailas Fission fragment anisotropies for the 13C+235U system at near-Coulomb barrier energies NUCLEAR REACTIONS 235U(13C, X), E(cm)=55-85 MeV; measured fission fragment spectra, anisotropies, excitation functions. 236U(12C, X); compared fission anisotropies.
doi: 10.1103/PhysRevC.77.021601
2008AJ02 Phys.Rev. C 77, 21601 (2008) B.P.Ajitkumar, K.M.Varier, B.V.John, A.Saxena, B.K.Nayak, D.C.Biswas, R.G.Thomas, S.Kailas Fission fragment anisotropies for the 13C + 235U system at near-Coulomb barrier energies NUCLEAR REACTIONS 235U(13C, f), E=59.7-79.6 MeV; measured products; deduced σ, σ(E). Data were imported from EXFOR entry D6032.
doi: 10.1103/physrevc.77.021601
2008EV01 Phys.Rev. C 78, 034614 (2008) M.Evers, M.Dasgupta, D.J.Hinde, L.R.Gasques, M.L.Brown, R.Rafiei, R.G.Thomas Systematic study of the nuclear potential diffuseness through high precision back-angle quasi-elastic scattering NUCLEAR REACTIONS 144,154Sm, 166Er, 186W, 197Au, 208Pb(16O, 16O), E=17-26 MeV; measured yields, σ(θ), diffuseness parameter. Coupled-channel calculations.
doi: 10.1103/PhysRevC.78.034614
2008HI07 Phys.Rev.Lett. 100, 202701 (2008) D.J.Hinde, R.G.Thomas, R.du Rietz, A.Diaz-Torres, M.Dasgupta, M.L.Brown, M.Evers, L.R.Gasques, R.Rafiei, M.D.Rodriguez Disentangling Effects of Nuclear Structure in Heavy Element Formation NUCLEAR REACTIONS 186W(46Ti, X), 184W(48Ti, X), 182W(50Ti, X), E=222-241 MeV; measured232Cm compound nucleus mass-angle distributions, mass ratio distributions, fission cross sections; model independent analysis; shell structure effects; comparison with FRLDM calculations.
doi: 10.1103/PhysRevLett.100.202701
2008HI14 Phys.Rev.Lett. 101, 092701 (2008) D.J.Hinde, R.du Rietz, M.Dasgupta, R.G.Thomas, L.R.Gasques Two Distinct Quasifission Modes in the 32S + 232Th Reaction NUCLEAR REACTIONS 232Th(32S, X)264Hs, E=157.8-195.0 MeV; measured absolute σ, fission fragmentσ, σ(θ) and anisotropy, mass-angle and mass-ratio distributions, barrier distributions; comparison with transition state model, Coupled channel calculations.
doi: 10.1103/PhysRevLett.101.092701
2008RA07 Phys.Rev. C 77, 024606 (2008) R.Rafiei, R.G.Thomas, D.J.Hinde, M.Dasgupta, C.R.Morton, L.R.Gasques, M.L.Brown, M.D.Rodriguez Strong evidence for quasifission in asymmetric reactions forming 202Po NUCLEAR REACTIONS 186Os(16O, X)202Po, E=74-105 MeV; 178Hf(24Mg, X)202Po, E=106-144 MeV; 168Er(34S, X)202Po, E=141-174 MeV; 154Sm(48Ti, X)202Po, E=198-235 MeV; measured mass-angle correlations, mass ratio distributions, cross sections.
doi: 10.1103/PhysRevC.77.024606
2008TH01 Phys.Rev. C 77, 034610 (2008) R.G.Thomas, D.J.Hinde, D.Duniec, F.Zenke, M.Dasgupta, M.L.Brown, M.Evers, L.R.Gasques, M.D.Rodriguez, A.Diaz-Torres Entrance channel dependence of quasifission in reactions forming 220Th NUCLEAR REACTIONS 204Pb(16O, X), E=1-1.26 MeV; 186W(34S, X), E=0.95-1.25, 188.9 MeV; 166,170Er(48Ti, X), (50Ti, X), E=0.95-1.25, 208.0, 245.0 MeV; measured mass-angle correlations, mass ratio distributions, standard deviation of fission fragments.
doi: 10.1103/PhysRevC.77.034610
2007GA39 Phys.Rev. C 76, 024612 (2007) L.R.Gasques, M.Evers, D.J.Hinde, M.Dasgupta, P.R.S.Gomes, R.M.Anjos, M.L.Brown, M.D.Rodriguez, R.G.Thomas, K.Hagino Systematic study of the nuclear potential through high precision back-angle quasi-elastic scattering measurements NUCLEAR REACTIONS 170Er, 186W, 197Au, 208Pb(32S, X), E=90-155 MeV; measured quasi-elastic scattering excitation functions. Compared results to single and coupled channel calculations.
doi: 10.1103/PhysRevC.76.024612
2007HI06 Phys.Rev. C 76, 014617 (2007) D.J.Hinde, R.L.Ahlefeldt, R.G.Thomas, K.Hagino, M.L.Brown, M.Dasgupta, M.Evers, L.R.Gasques, M.D.Rodriguez Probing the tail of the nuclear potential between identical nuclei with quasi-elastic Mott scattering NUCLEAR REACTIONS 58Ni(58Ni, 58Ni), E=260=220 MeV; measured angular distributions. Deduced Mott oscillations.
doi: 10.1103/PhysRevC.76.014617
2007KA37 Nucl.Phys. A787, 259c (2007) S.Kailas, K.Mahata, R.G.Thomas, S.S.Kapoor Nuclear structure and dynamics from heavy - ion induced fission reactions NUCLEAR REACTIONS 194,198Pt(12C, X), (12C, F), (12C, xn), E*=35-55 MeV; 188,192Os(19F, X), (19F, F), (19F, xn), E*=40-65 MeV; analyzed σ. Statistical model.
doi: 10.1016/j.nuclphysa.2006.12.041
2007NA12 Phys.Rev. C 75, 054615 (2007) B.K.Nayak, R.K.Choudhury, A.Saxena, P.K.Sahu, R.G.Thomas, D.C.Biswas, B.V.John, E.T.Mirgule, Y.K.Gupta, M.Bhike, H.G.Rajprakash Evidence for Coulomb effects on the fusion barrier distribution for deformed projectile nuclei NUCLEAR REACTIONS 115In(16O, X), E=49-69 MeV; 115In(28Si, X), E=92-114 MeV; 115In(30Si, X), E=92-120 MeV; measured cross sections, quasielastic excitation functions. Deduced fusion barrier distributions.
doi: 10.1103/PhysRevC.75.054615
2007TH01 Phys.Rev. C 75, 024604 (2007) R.G.Thomas, A.Saxena, P.K.Sahu, R.K.Choudhury, I.M.Govil, S.Kailas, S.S.Kapoor, M.Barbui, M.Cinausero, G.Prete, V.Rizzi, D.Fabris, M.Lunardon, S.Moretto, G.Viesti, G.Nebbia, S.Pesente, B.Dalena, G.D'Erasmo, E.M.Fiore, M.Palomba, A.Pantaleo, V.Paticchio, G.Simonetti, N.Gelli, F.Lucarelli Fission and binary fragmentation reactions in 80Se + 208Pb and 80Se + 232Th systems NUCLEAR REACTIONS 208Pb, 232Th(80Se, X), E=470-630 MeV; measured fragments kinetic energy and mass distributions, neutron multiplicities; deduced reaction mechanism features.
doi: 10.1103/PhysRevC.75.024604
2006RA14 Phys.Rev. C 73, 064609 (2006) K.Ramachandran, A.Chatterjee, A.Navin, K.Mahata, A.Shrivastava, V.Tripathi, S.Kailas, V.Nanal, R.G.Pillay, A.Saxena, R.G.Thomas, S.Kumar, P.K.Sahu Fission time scale from prescission neutron, proton, and α particle multiplicities in 28Si+175Lu NUCLEAR REACTIONS 175Lu(28Si, nX), (28Si, pX), (28Si, αX), E=159 MeV; measured prescission neutron, proton, and α multiplicities, σ(E, θ). 203At deduced fission time scale. Deformation dependent particle binding energies and transmission co-efficients, dynamical effects.
doi: 10.1103/PhysRevC.73.064609
2006SA20 Phys.Rev. C 73, 064604 (2006) P.K.Sahu, A.Saxena, B.K.Nayak, R.G.Thomas, B.V.John, R.K.Choudhury Fusion barrier distribution derived from quasielastic excitation functions in 11B, 12C, 13C + 209Bi reactions NUCLEAR REACTIONS 209Bi(12C, X), (13C, X), E=50-72 MeV; 209Bi(11B, X), E=40-62 MeV; measured quasielastic excitation functions; deduced fusion barrier distributions.
doi: 10.1103/PhysRevC.73.064604
2005KU38 Phys.Rev. C 72, 067601 (2005); Erratum Phys.Rev. C 73, 039901 (2006) B.P.A.Kumar, K.M.Varier, R.G.Thomas, K.Mahata, B.V.John, A.Saxena, H.G.Rajprakash, S.Kailas Fission fragment angular distributions of the 13C + 232Th system at near-barrier energies NUCLEAR REACTIONS 232Th(13C, X), E=55-75 MeV; measured fission fragment angular distributions, anisotropies, fusion σ.
doi: 10.1103/PhysRevC.72.067601
2005SA49 Phys.Rev. C 72, 034604 (2005) P.K.Sahu, R.G.Thomas, A.Saxena, R.K.Choudhury, S.S.Kapoor, L.M.Pant, M.Barbui, M.Cinausero, G.Prete, V.Rizzi, D.Shetty, D.Fabris, M.Lunardon, S.Moretto, G.Viesti, G.Nebbia, S.Pesente, B.Dalena, G.D'Erasmo, D.Di Santo, E.M.Fiore, M.Palomba, A.Pantaleo, V.Paticchio, G.Simonetti, N.Gelli, F.Lucarelli, A.Brondi, E.Vardaci Binary fragmentations of excited nuclear systems in the 372 MeV 56Fe + 232Th reaction NUCLEAR REACTIONS 232Th(56Fe, X), E=372 MeV; measured fragments kinetic energy and mass distributions, neutron spectra and multiplicities, (neutron)(fragment)-coin; deduced binary fragmentation features.
doi: 10.1103/PhysRevC.72.034604
2004BE28 Phys.Rev. C 69, 064603 (2004) B.R.Behera, M.Satpathy, S.Jena, S.Kailas, R.G.Thomas, K.Mahata, A.Chatterjee, S.Roy, P.Basu, M.K.Sharan, S.K.Datta Fission fragment angular distributions for the systems 14N + 232Th and 11B + 235U at near and sub-barrier energies NUCLEAR REACTIONS 232Th(14N, X), E=72-92 MeV; 235U(11B, X), E=51-74 MeV; measured fission σ, fragment angular distributions, anisotropy; deduced reaction mechanism features. Comparison with standard statistical saddle-point model predictions.
doi: 10.1103/PhysRevC.69.064603
2004SA57 Phys.Rev. C 70, 051602 (2004) Y.S.Sawant, A.Saxena, R.K.Choudhury, P.K.Sahu, R.G.Thomas, L.M.Pant, B.K.Nayak, D.C.Biswas Temperature and fissility dependence of fragment mass variance in heavy ion induced fission NUCLEAR REACTIONS Pb, 209Bi, 235U(12C, X), 209Bi(11B, X), E ≈ barrier; measured fission fragment kinetic energy and mass distributions; deduced temperature and fissility dependence, related features.
doi: 10.1103/PhysRevC.70.051602
2003PA02 Eur.Phys.J. A 16, 43 (2003) L.M.Pant, A.Saxena, R.G.Thomas, D.C.Biswas, R.K.Choudhury Pre- and Post-scission neutron multiplicities in 19F + 209Bi reaction at 108 MeV NUCLEAR REACTIONS 209Bi(19F, nF), E=108 MeV; measured pre- and post-scission neutron spectra, multiplicities, fragment mass distributions, angular correlations; deduced fusion fission dynamical time, other reaction mechanism features.
doi: 10.1140/epja/i2002-10072-2
2003SA54 Phys.Rev. C 68, 054612 (2003) P.K.Sahu, A.Saxena, R.K.Choudhury, B.K.Nayak, D.C.Biswas, L.M.Pant, R.G.Thomas, Y.S.Sawant Investigation of target shell effect in heavy ion induced transfer reactions in 11B + 208Pb and 11B + 209Bi reactions NUCLEAR REACTIONS 208Pb(11B, 12C), (11B, 12B), (11B, 13C), (11B, 9Be), (11B, 14C), (11B, 10Be), (11B, 10B), (11B, 7Li), E=69 MeV; 209Bi(11B, 8Li), (11B, 9Li), E=69 MeV; measured σ(θ), particle spectra, total transfer σ; deduced target shell closure effect.
doi: 10.1103/PhysRevC.68.054612
2003TH02 Phys.Rev. C 67, 041601 (2003) R.G.Thomas, R.K.Choudhury, A.K.Mohanty, A.Saxena, S.S.Kapoor Fission fragment angular distributions: A probe to study heavy-ion fusion dynamics NUCLEAR REACTIONS 232Th, 238U(16O, F), E(cm) ≈ 70-120 MeV; 232Th(12C, F), (10B, F), (11B, F), E(cm) ≈ 40-80 MeV; 235,236,238U(12C, F), E(cm) ≈ 50-90 MeV; analyzed fission fragment angular distributions, anisotropy; deduced role of pre-equilibrium fission, related reaction mechanism features.
doi: 10.1103/PhysRevC.67.041601
2002TH06 Phys.Rev. C65, 057601 (2002) R.G.Thomas, B.K.Nayak, A.Saxena, D.C.Biswas, L.M.Pant, R.K.Choudhury Fission Fragment Anisotropies of 10B, 11B + 237Np Reactions NUCLEAR REACTIONS 237Np(10B, F), (11B, F), E ≈ 50-70 MeV; measured fission excitation functions, fragment angular distributions, anisotropies. Comparison with entrance-channel-dependent K-state model.
doi: 10.1103/PhysRevC.65.057601
2000NA27 Phys.Rev. C62, 031601 (2000) B.K.Nayak, R.G.Thomas, R.K.Choudhury, A.Saxena, P.K.Sahu, S.S.Kapoor, R.Varma, D.Umakanth Effect of Projectile Ground State Spin on Fission Fragment Anisotropies in 10B, 11B + 232Th Reactions NUCLEAR REACTIONS 232Th(10B, F), (11B, F), E=52, 54, 58, 68 MeV; measured fission σ, fragment angular distributions; deduced role of projectile spin. Comparison with model predictions.
doi: 10.1103/PhysRevC.62.031601
2000SI04 Phys.Rev. C61, 034612 (2000) S.Sinha, R.Varma, R.K.Choudhury, B.K.Nayak, A.Saxena, R.G.Thomas, B.V.Dinesh Measurement of Quasielastic and Transfer Excitation Functions in 16O, 19F + 232Th Reactions NUCLEAR REACTIONS 232Th(16O, X), (16O, 14N), (16O, 15N), (16O, 12C), (16O, 13C), (16O, 14C), E=73-99 MeV; 232Th(19F, X), (19F, 16O), (19F, 17O), (19F, 18O), (19F, 14N), (19F, 15N), (19F, 16N), (19F, 12C), (19F, 13C), (19F, 14C), (19F, 15C), E=83-109 MeV; measured quasielastic and transfer excitation functions; deduced fusion barrier distributions, transfer probabilities. Comparison with semiclassical model.
doi: 10.1103/PhysRevC.61.034612
1998VA11 Phys.Rev. C57, 3462 (1998) R.Varma, S.Sinha, B.K.Nayak, R.G.Thomas, A.Saxena, D.C.Biswas, L.M.Pant, D.M.Nadkarni, R.K.Choudhury, P.Bhattacharya Fusion Barrier and Spin Distributions in 12C + 232Th Reaction Via Quasielastic Scattering NUCLEAR REACTIONS 232Th(12C, X), E=51-79 MeV; measured quasielastic σ(E, θ); deduced fusion barrier, spin distributions. Model comparisons.
doi: 10.1103/PhysRevC.57.3462
1968TH08 Nucl.Phys. A106, 323 (1968) Excitation functions for (p, n) and (p, 2n) interactions in Sc, Cr, Mo, Cd and W between 8 and 14 MeV NUCLEAR REACTIONS 45Sc(p, n), Cr(p, n), Mo(p, 2n), Mo(p, n), Cd(p, 2n), Cd(p, n), W(p, 2n), W(p, n), E=7.8-14.4 MeV; measured products, 45Ti, Eν, Iν; deduced σ, σ(E). Data were imported from EXFOR entry C0696.
doi: 10.1016/0375-9474(67)90877-9
1967CH40 Nucl.Phys. A93, 648 (1967) G.Chodil, R.C.Jopson, H.Mark, C.D.Swift, R.G.Thomas, M.K.Yates (p, n) and (p, 2n) cross sections on nine elements between 7.0 and 15.0 MeV
doi: 10.1016/0375-9474(67)90312-0
1967TH07 Phys.Rev. 159, 1022 (1967) Neutron Production in Ag, Ta, Au, Pt, and Pb by the Interaction of 7. 5-14-MeV Protons NUCLEAR REACTIONS Ag(p, 2n), Ag(p, n), Ag(p, np), 181Ta(p, 2n), 181Ta(p, n), 181Ta(p, np), Pt(p, 2n), Pt(p, n), Pt(p, np), 197Au(p, 2n), 197Au(p, n), 197Au(p, np), Pb(p, 2n), Pb(p, n), Pb(p, np), E=7.6-13.9 MeV; measured products, Eπ, Iπ; deduced σ, σ(E). Data were imported from EXFOR entry C0695.
doi: 10.1103/PhysRev.159.1022
1958LA73 Rev.Mod.Phys. 30, 257 (1958) R-Matrix Theory of Nuclear Reactions
doi: 10.1103/RevModPhys.30.257
1956PO48 Phys.Rev. 104, 483 (1956) Fluctuations of Nuclear Reaction Widths
doi: 10.1103/PhysRev.104.483
1956TH06 Phys.Rev. 101, 759 (1956) R.G.Thomas, M.Walt, R.B.Walton, R.C.Allen Spin Dependence of the s-Wave Neutron Interaction with Li7
doi: 10.1103/PhysRev.101.759
1955LA56 Phys.Rev. 98, 693 (1955) A.M.Lane, R.G.Thomas, E.P.Wigner Giant Resonance Interpretation of the Nucleon-Nucleus Interaction
doi: 10.1103/physrev.98.693
1952TH24 Phys.Rev. 88, 969 (1952) Magnetic Lens Spectrometer Measurements of the Radiations from Light Nuclear Reactions
doi: 10.1103/PhysRev.88.969
1949TH05 Phys.Rev. 75, 1612 (1949) R.G.Thomas, S.Rubin, W.A.Fowler, C.C.Lauritsen Beryllium-Proton Reactions and Scattering NUCLEAR REACTIONS 9Be(p, α), (p, d), (p, p), E=250-1300 keV; measured σ(θ=138°).
doi: 10.1103/PhysRev.75.1612
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