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NSR database version of April 27, 2024.

Search: Author = K.Atreya

Found 8 matches.

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2024RO02      Appl.Radiat.Isot. 204, 111140 (2024)

A.S.Roy, K.Banerjee, P.Roy, R.Shil, R.Ravishankar, R.Datta, A.Sen, S.Manna, T.K.Ghosh, G.Mukherjee, T.K.Rana, S.Kundu, S.S.Nayak, R.Pandey, D.Paul, K.Atreya, S.Basu, S.Mukhopadhyay, D.Pandit, M.S.Kulkarni, C.Bhattacharya

Measurement of energy and directional distribution of neutron ambient dose equivalent for the ⁷Li(p, n)⁷Be reaction

NUCLEAR REACTIONS ⁷Li(p, n), E=7.9, 12 MeV; measured reaction products, En, In, TOF; deduced neutron fluence distributions, neutron ambient dose equivalents using the measured fluence distribution using ICRP (International Commission on Radiological Protection) recommended fluence to dose equivalent conversion coefficients.

doi: 10.1016/j.apradiso.2023.111140
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2023AT02      Phys.Rev. C 108, 034615 (2023)

K.Atreya, A.Sen, T.K.Ghosh, A.K.Nasirov, D.Paul, M.M.Shaikh, K.Banerjee, C.Bhattacharya, S.Kundu, S.Manna, G.Mukherjee, S.Nandi, R.Pandey, T.K.Rana, P.Roy, S.Mukhopadhyay, R.K.Santra

Exploring quasifission dynamics in reactions leading to the formation of ²²⁵Pa

doi: 10.1103/PhysRevC.108.034615
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2021MA77      Eur.Phys.J. A 57, 286 (2021)

S.Manna, T.K.Rana, C.Bhattacharya, S.Kundu, R.Pandey, K.Banerjee, P.Roy, A.Sen, T.K.Ghosh, G.Mukherjee, D.Mondal, M.M.Shaikh, J.K.Meena, P.Karmakar, D.Paul, K.Atreya, S.Basu, V.Srivastava, A.Chaudhuri, T.Roy, A.Asgar, A.Dey, A.Dhal, M.Sinha, J.K.Sahoo, A.K.Saha, R.M.Saha, S.Bhattacharya

Search for the Hoyle analogue state in ¹⁶O

NUCLEAR REACTIONS ¹⁶O, ¹²C(α, X), E=45 MeV; measured reaction products, Eα, Iα. ¹⁶O, ¹²C, ⁸Be; deduced σ, specific decay channels, lack of evidence for the Hoyle analogue state.

doi: 10.1140/epja/s10050-021-00592-8
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2021PA30      Phys.Rev. C 104, 024604 (2021)

D.Paul, A.Sen, T.K.Ghosh, Md.M.Shaikh, K.Atreya, R.Santra, S.Kundu, T.K.Rana, K.Banerjee, C.Bhattacharya, S.Bhattacharya, J.K.Meena, D.C.Biswas, B.N.Joshi, N.Kumar, G.K.Prajapati, Y.K.Gupta, K.Mahata, K.Ramachandran, S.Pal

Fission fragment mass and folding angle distributions in the reaction ⁹Be +²³⁸U

NUCLEAR REACTIONS ²³⁸U(⁹Be, F), E=37.5, 39, 42, 47 MeV pulsed beam from BARC-TIFR Pelletron facility in Mumbai; measured fission fragments, σ(E) using two position-sensitive multiwire proportional counters (MWPC) and time-of-flight (TOF) method; deduced folding angle distributions, yields, fission fragment mass distributions, σ(E)(exp)/σ(E)(theory), incomplete fusion fission (ICF) σ(E), half-mass distribution in the fission of the compound nucleus ²⁴⁷Cm at 47 MeV. Comparison with experimental results from ^6,7Li-induced reactions on actinide targets, and ²³⁸U(p, F), (α, F) and ²³²Th(¹²C, F) reactions. Comparison with semiempirical theoretical calculation using GEF code, and with macro-microscopic two-center shell model calculations, considering the admixture of incomplete fusion fission mechanism.

doi: 10.1103/PhysRevC.104.024604
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2021RO07      Phys.Rev. C 103, 024602 (2021)

P.Roy, S.Mukhopadhyay, M.Aggarwal, D.Pandit, T.K.Rana, S.Kundu, T.K.Ghosh, K.Banerjee, G.Mukherjee, S.Manna, A.Sen, R.Pandey, D.Mondal, S.Pal, D.Paul, K.Atreya, C.Bhattacharya

Excitation energy and angular momentum dependence of the nuclear level density parameter around A ≈ 110

NUCLEAR REACTIONS ⁹³Nb(¹⁶O, X), E=116, 142, 160 MeV; ⁹³Nb(²⁰Ne, X), E=145, 180 MeV; measured E(n), I(n), Eγ, Iγ, nγ-coin, n(θ), time-of-flight using eight liquid-scintillator-based neutron detectors, and 50-element BaF₂ detector array for γ detection at the K130 cyclotron facility of VECC, Kolkata; deduced differential σ(E, θ), multiplicity of low-energy γ rays, excitation energy and temperature dependence of the inverse nuclear level density parameter, average angular momenta in the residual nuclei and inverse nuclear level density parameters. ¹⁰⁴Ag, ^107,108In, ^111,112Sb; deduced nuclear density parameters, and compared with microscopic statistical-model calculations.

doi: 10.1103/PhysRevC.103.024602
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2021RO09      Eur.Phys.J. A 57, 48 (2021)

P.Roy, K.Banerjee, T.K.Rana, S.Kundu, D.Pandit, N.Quang Hung, T.K.Ghosh, S.Mukhopadhyay, D.Mondal, G.Mukherjee, S.Manna, A.Sen, S.Pal, R.Pandey, D.Paul, K.Atreya, C.Bhattacharya

Nuclear level density and thermal properties of ¹¹⁵Sn from neutron evaporation

NUCLEAR REACTIONS ¹¹⁵In(p, n), E=9, 12 MeV; measured reaction products, Eγ, Iγ, En, In; deduced σ(θ), neutron energy spectra, nuclear level density. Comparison with with the microscopic Hartree-Fock BCS (HFBCS), Hartree-Fock-Bogoliubov plus combinatorial (HFB+C), TALYS nuclear model code.

doi: 10.1140/epja/s10050-021-00373-3
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Data from this article have been entered in the EXFOR database. For more information, access X4 datasetD6395.

2020PA45      Phys.Rev. C 102, 054604 (2020)

D.Paul, A.Sen, T.K.Ghosh, Md.M.Shaikh, K.Atreya, S.Kundu, K.Banerjee, C.Bhattacharya, S.Bhattacharya, J.K.Meena, D.C.Biswas, B.N.Joshi, N.Kumar, G.K.Prajapati, Y.K.Gupta, K.Mahata, K.Ramachandran, S.Pal

Measurement of fragment-mass distributions from fission of ²¹⁴At following the ⁹Be + ²⁰⁵Tl reaction

NUCLEAR REACTIONS ²⁰⁵Tl(⁹Be, X)²¹⁴At^*, E=42, 43.5, 45, 47 MeV; measured reaction products, yields, time-of-flight difference of the fission fragments, Angular correlations using two position-sensitive multiwire proportional counters (MWPC) at the BARC-TIFR Pelletron facility; deduced fission-fragments mass distributions, half-mass yield distribution, slight asymmetric mass distribution. Comparison with theoretical predictions from a recent macroscopic-microscopic calculation.

doi: 10.1103/PhysRevC.102.054604
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2020RO22      Phys.Rev. C 102, 061601 (2020)

P.Roy, K.Banerjee, T.K.Rana, S.Kundu, S.Manna, A.Sen, D.Mondal, J.Sadhukhan, M.T.Senthil Kannan, T.K.Ghosh, S.Mukhopadhyay, D.Pandit, G.Mukherjee, S.Pal, D.Paul, K.Atreya, C.Bhattacharya

Evidence for the reduction of nuclear level density away from the β-stability line

NUCLEAR REACTIONS ¹¹⁵In(p, X)¹¹⁶Sn^*, E=9, 12 MeV; ¹¹²Sn(α, X)¹¹⁶Te^*, E=28 MeV; measured En, In, angular distribution of neutrons, prompt γ radiation, Eγ, Iγ, double-differential σ(E) using the time-of-flight (TOF) technique for neutrons, and a 50-element BaF₂ detector array for γ rays at the K130 cyclotron facility of VECC-Kolkata; deduced reduction of nuclear level density away from the β-stability line. Comparison with Hauser-Feshbach theoretical predictions using TALYS code with nuclear level density parameters from Gilbert-Cameron (GC), backshifted Fermi gas (BSFG), and generalized superfluid model (GSM). Prediction of level-density parameter compared with microscopic shell-model calculation with Woods-Saxon mean field.

doi: 10.1103/PhysRevC.102.061601
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