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NSR database version of April 11, 2024.

Search: Author = D.G.Medvedev

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2021FO05      Phys.Rev. C 103, 034601 (2021)

M.B.Fox, A.S.Voyles, J.T.Morrell, L.A.Bernstein, A.M.Lewis, A.J.Koning, J.C.Batchelder, E.R.Birnbaum, C.S.Cutler, D.G.Medvedev, F.M.Nortier, E.M.O'Brien, C.Vermeulen

Investigating high-energy proton-induced reactions on spherical nuclei: Implications for the preequilibrium exciton model

NUCLEAR REACTIONS 93Nb(p, X)72Se/73As/74As/75Se/81Rb/82mRb/83Rb/83Sr/84Rb/85mY/86Rb/86Y/86Zr/87Y/87mY/88Y/88Zr/89Zr/90Nb/90Mo/91mNb/92mNb/93mNb, E=192.38, 177.11, 163.31, 148.66, 133.87, 119.8, 104.2, 91.21, 79.32, 72.52, 67.14, 63.06, 60.08, 57.47, 55.58, 53.62, 51.61 MeV; 93Nb(p, 4n)90Mo, (p, 3np)90Nb, (p, nα)89Zr, (p, 3n2p)89Zr, (p, 3npα)86Y, (p, 2α)88Zr, (p, n)93mMo, (p, np)92mNb, (p, 3nα)87Zr, (p, npα)88Y, (p, 4nα)86Zr, (p, 4np)89Nb, (p, 2npα)87Y, (p, np2α)84Rb, E=25-200 MeV; 139La(p, 5n)135Ce, (p, 6n)134Ce, (p, 4np)135La, (p, 7n)133mCe, (p, 3nα)133Ba/133mBa, (p, 3n)137Ce/137mCe, (p, n)139Ce, (p, 8n)132Ce, (p, 6np)133La, (p, 3npα)132Cs, (p, 5nα)131Ba, E=20-100 MeV; measured Eγ, Iγ, σ(E) by activation method in a Tri-lab collaboration among the Lawrence Berkeley, Los Alamos, and Brookhaven National Laboratories. Comparison with literature data, and with calculations of the nuclear model codes: TALYS, CoH, EMPIRE, and ALICE; deduced best parametrization for the preequilibrium two-component exciton model.

doi: 10.1103/PhysRevC.103.034601
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Data from this article have been entered in the EXFOR database. For more information, access X4 datasetC2631.

2021FO13      Phys.Rev. C 104, 064615 (2021)

M.B.Fox, A.S.Voyles, J.T.Morrell, L.A.Bernstein, J.C.Batchelder, E.R.Birnbaum, C.S.Cutler, A.J.Koning, A.M.Lewis, D.G.Medvedev, F.M.Nortier, E.M.O'Brien, Ch.Vermeulen

Measurement and modeling of proton-induced reactions on arsenic from 35 to 200 MeV

NUCLEAR REACTIONS 75As(p, X)56Co/57Co/58Co/60Co/65Zn/69mZn/66Ga/67Ga/68Ga/72Ga/66Ge/68Ge/69Ge/70As/71As/72As/73As/74As/72Se/73Se/75Se, E=35-200 MeV; Cu(p, X)44mSc/46Sc/47Sc/48V/48Cr/49Cr/51Cr/52Mn/54Mn/56Mn/55Co/56Co/57Co/60Co/56Ni/57Ni/59Fe/60Cu/61Cu/64Cu/62Zn/63Zn/65Zn, E=35-200 MeV; Ti(p, X)42K/43K/43Sc/44Sc/44mSc/46Sc/47Sc/48Sc/44Ti/47Ca/48V, E=35-200 MeV; measured production σ(E) using stacked-target technique, and off-line γ-ray spectrometry, Eγ, Iγ at the LBNL 88-Inch Cyclotron for E(p)<55 MeV, at LANL, IPF for E(p)=50-100 MeV, and at BNL, BLIP for E(p)=100-200 MeV. 75As(p, 4n)72Se, (p, 3n)73Se, (p, 3np)72As, (p, X)56Co/57Co/58Co/60Co/65Zn/69mZn/66Ga/67Ga/68Ga/72Ga/66Ge/68Ge/69Ge/70As/71As/73As/74As/75Se, E=25-200 MeV; Ti(p, X)44Sc/44mSc, E=10-200 MeV; Ti(p, X)42K/43K/43Sc/44Sc/44mSc/46Sc/47Sc/48Sc/47Ca/44Ti/48V, E=25-200 MeV; Cu(p, X)44mSc/46Sc/47Sc/48V/48Cr/49Cr/51Cr/52Mn/54Mn/56Mn/55Co/56Co/57Co/60Co/56Ni/57Ni/59Fe/60Cu/61Cu/64Cu/62Zn/63Zn/65Zn, E=25-200 MeV; comparison of measured s(E) in the present work and previous experiments with theoretical cross sections using ALICE-20, CoH-3.5.3, EMPIRE-3.2.3, TALYS-1.95 and TENDL-2019. 75As(p, n)75Se, (p, np)74As, E<200 MeV; 75As(p, 3n)73Se, (p, 2np)73As, (p, 4n)72Se, (p, X)71As/69Ge/68Ga/67Ga, E=25-200; TALYS default and adjusted σ(E) calculations for residual products. 75As(p, 3np)72As, (p, X)72Ga/70As/65Zn/69mZn/68Ge/66Ge/66Ga/56Co/57Co/58Co/60Co, E=25-200 MeV; TALYS default and adjusted calculations extended to residual products not used in the parameter adjustment sensitivity studies. 68,71,73As, 72,73Se, 69Ge, 67,69Ga; adjusted level density scalings in global fitting procedure for residual products. Relevance to production cross sections for positron emission tomography (PET) generator system of 72Se/72As and 68Ge/68Ga.

doi: 10.1103/PhysRevC.104.064615
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Data from this article have been entered in the EXFOR database. For more information, access X4 datasetC2702.

2019DE14      Radiochim.Acta 107, 279 (2019)

A.J.DeGraffenreid, D.G.Medvedev, T.E.Phelps, M.D.Gott, S.V.Smith, S.S.Jurisson, C.S.Cutler

Cross-section measurements and production of 72Se with medium to high energy protons using arsenic containing targets

NUCLEAR REACTIONS 75As(p, xn)72Se/75Se, E=52-105 MeV; measured reaction products; deduced σ. Comparison with TALYS 1.4 and EMPIRE 3.1 (Rivoli) nuclear model code calculations.

doi: 10.1515/ract-2018-2931
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2016GR18      Appl.Radiat.Isot. 118, 366 (2016)

J.R.Griswold, D.G.Medvedev, J.W.Engle, R.Copping, J.M.Fitzsimmons, V.Radchenko, J.C.Cooley, M.E.Fassbender, D.L.Denton, K.E.Murphy, A.C.Owens, E.R.Birnbaum, K.D.John, F.M.Nortier, D.W.Stracener, L.H.Heilbronn, L.F.Mausner, S.Mirzadeh

Large scale accelerator production of 225Ac: Effective cross sections for 78-192 MeV protons incident on 232Th targets

NUCLEAR REACTIONS 232Th(p, X)225Ac/226Ac/227Ac/227Th/228Th/99Mo/140Ba/139Ce/141Ce/143Ce/144Ce, E=78-192 MeV; measured reaction products, Eγ, Iγ; deduced effective production σ, yields. Comparison with available data.

doi: 10.1016/j.apradiso.2016.09.026
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Data from this article have been entered in the EXFOR database. For more information, access X4 datasetC2251.

2011ME10      J.Labelled Compd.Radiopharm. Supp.1., 54, S236 (2011)

D.G.Medvedev, L.F.Mausner, S.O.Kurczak, S.Srivastava

Overview of the development of large scale production of 86Y at Brookhaven Linac Isotope Producer

NUCLEAR REACTIONS 88Sr(p, 2n), 86Sr(p, n), E=16.6-45.5 MeV; measured reaction products, Eγ, Iγ; deduced yields.

2011ME16      Radiochim.Acta 99, 755 (2011)

D.G.Medvedev, L.F.Mausner, S.C.Srivastava

Irradiation of strontium chloride targets at proton energies above 35 MeV to produce PET radioisotope Y-86

NUCLEAR REACTIONS 88Sr(p, 3n), (p, xn)85Y/86Y/87Y/88Y, E=37 MeV; measured reaction products; deduced 86Y production yields. Chemical separation methods.

doi: 10.1524/ract.2011.1880
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Data from this article have been entered in the EXFOR database. For more information, access X4 datasetC1954.

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