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NSR database version of April 27, 2024.

Search: Author = P.Ivanov

Found 17 matches.

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2024PI01      Appl.Radiat.Isot. 205, 111171 (2024)

L.Pibida, D.E.Bergeron, S.M.Collins, P.Ivanov, J.T.Cessna, R.P.Fitzgerald, J.Mewburn-Crook, B.E.Zimmerman, L.King

Absolute emission intensities of the gamma rays from the decay of ²²⁴Ra and ²¹²Pb progenies and the half-life of the ²¹²Pb decay

RADIOACTIVITY ²²⁴Ra(α), ²¹²Pb(β^-); measured decay products, Eγ, Iγ; deduced γ-ray energies and absolute emission intensities, T_1/2. Comparison with ENSDF library. NIST and NPL measurements.

doi: 10.1016/j.apradiso.2023.111171
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2023CO11      Appl.Radiat.Isot. 202, 111044 (2023)

S.M.Collins, U.Koster, A.P.Robinson, P.Ivanov, T.E.Cocolios, B.Russell, A.J.Fenwick, C.Bernerd, S.Stegemann, K.Johnston, A.M.Gerami, K.Chrysalidis, H.Mohamud, N.Ramirez, A.Bhaisare, J.Mewburn-Crook, D.M.Cullen, B.Pietras, S.Pells, K.Dockx, N.Stucki, P.H.Regan

Determination of the Terbium-152 half-life from mass-separated samples from CERN-ISOLDE and assessment of the radionuclide purity

RADIOACTIVITY ¹⁵²Tb(EC), (β⁺); measured decay products, Eγ, Iγ, Eβ, Iβ; deduced T_1/2 by three independent techniques from mass-separated samples. Comparison with available data. Two mass-separated samples from the CERN-ISOLDE facility have been assayed at the National Physical Laboratory.

doi: 10.1016/j.apradiso.2023.111044
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2023GJ01      Phys.Rev. C 108, 064602 (2023)

D.Gjestvang, J.N.Wilson, A.Al-Adili, S.Siem, Z.Gao, J.Randrup, D.Thisse, M.Lebois, N.Jovancevic, R.Canavan, M.Rudigier, D.Etasse, R.-B.Gerst, E.Adamska, P.Adsley, A.Algora, C.Belvedere, J.Benito, G.Benzoni, A.Blazhev, A.Boso, S.Bottoni, M.Bunce, R.Chakma, N.Cieplicka-Orynczak, S.Courtin, M.L.Cortes, P.Davies, C.Delafosse, M.Fallot, B.Fornal, L.Fraile, A.Gottardo, V.Guadilla, G.Hafner, K.Hauschild, M.Heine, C.Henrich, I.Homm, F.Ibrahim, L.W.Iskra, P.Ivanov, S.Jazrawi, A.Korgul, P.Koseoglou, T.Kroll, T.Kurtukian-Nieto, S.Leoni, J.Ljungvall, A.Lopez-Martens, R.Lozeva, I.Matea, K.Miernik, J.Nemer, S.Oberstedt, W.Paulsen, M.Piersa-Silkowska, Y.Popovitch, C.Porzio, L.Qi, P.H.Regan, K.Rezynkina, V.Sanchez-Tembleque, C.Schmitt, P.-A.Soderstrom, C.Surder, G.Tocabens, V.Vedia, D.Verney, N.Warr, B.Wasilewska, J.Wiederhold, M.Yavahchova, S.Ziliani

Examination of how properties of a fissioning system impact isomeric yield ratios of the fragments

doi: 10.1103/PhysRevC.108.064602
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2023SC09      Eur.Phys.J. A 59, 116 (2023)

M.Scheck, R.Chapman, J.Dobaczewski, C.Ederer, P.Ivanov, G.Lorusso, D.O'Donnell, C.Schroder

A new avenue in the search for CP violation: Mossbauer spectroscopy of ²²⁷Ac

NUCLEAR STRUCTURE ^223,225,227Fr, ^{221,223,225,227}Ra, ^{223,225,227,229}Ac, ^229,231Th, ^229,231Pa; analyzed available data; deduced a new avenue in the search for CP-violating odd-electric and even-magnetic nuclear moments.

doi: 10.1140/epja/s10050-023-01000-z
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2023TH05      Eur.Phys.J. A 59, 153 (2023)

D.Thisse, M.Lebois, D.Verney, J.N.Wilson, N.Jovancevic, M.Rudigier, R.Canavan, D.Etasse, P.Adsley, A.Algora, M.Babo, K.Belvedere, J.Benito, G.Benzoni, A.Blazhev, A.Boso, S.Bottoni, M.Bunce, R.Chakma, N.Cieplicka-Orynczak, S.Courtin, M.L.Cortes, P.Davies, C.Delafosse, M.Fallot, B.Fornal, L.Fraile, D.Gjestvang, A.Gottardo, V.Guadilla, R.-B.Gerst, G.Hafner, K.Hauschild, M.Heine, C.Henrich, I.Homm, J.Hommet, F.Ibrahim, L.W.Iskra, P.Ivanov, S.Jazrawi, A.Korgul, P.Koseoglou, T.Kroll, T.Kurtukian-Nieto, L.Le Meur, S.Leoni, J.Ljungvall, A.Lopez-Martens, R.Lozeva, I.Matea, K.Miernik, J.Nemer, S.Oberstedt, W.Paulsen, M.Piersa-Silkowska, W.Poklepa, Y.Popovitch, C.Porzio, L.Qi, D.Ralet, P.H.Regan, D.Reygadas Tello, K.Rezynkina, V.Sanchez-Tembleque, S.Siem, C.Schmitt, P.-A.Soderstrom, K.Solak, C.Surder, G.Tocabens, V.Vedia, N.Warr, B.Wasilewska, J.Wiederhold, M.Yavahchova, F.Zeiser, S.Ziliani

Study of N = 50 gap evolution around Z = 32: new structure information for ⁸²Ge

NUCLEAR REACTIONS ²³²Th(n, F)⁸⁴Se/⁸²Ge, E fast; measured reaction products, Eγ, Iγ; deduced γ-ray energies and intensities, J, π, partial level scheme. Comparison with available data. LICORNE directional neutron source at the ALTO facility of IJCLab.

doi: 10.1140/epja/s10050-023-01051-2
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2022CO10      Appl.Radiat.Isot. 190, 110480 (2022)

S.M.Collins, A.P.Robinson, P.Ivanov, U.Koster, T.E.Cocolios, B.Russell, B.Webster, A.J.Fenwick, C.Duchemin, J.P.Ramos, E.Chevallay, U.Jakobsson, S.Stegemann, P.H.Regan, T.Stora

Half-life determination of ¹⁵⁵Tb from mass-separated samples produced at CERN-MEDICIS

RADIOACTIVITY ¹⁵⁵Tb(EC) [from Ta(p, X), E=1.4 GeV]; measured decay products, Eγ, Iγ; deduced T_1/2. Comparison with available data. The Proton Synchrotron Booster accelerator at CERN, the target foil was delivered to NPL.

doi: 10.1016/j.apradiso.2022.110480
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2021BE13      Appl.Radiat.Isot. 170, 109572 (2021)

D.E.Bergeron, S.M.Collins, L.Pibida, J.T.Cessna, R.Fitzgerald, B.E.Zimmerman, P.Ivanov, J.D.Keightley, E.Napoli

Ra-224 activity, half-life, and 241 keV gamma ray absolute emission intensity: A NIST-NPL bilateral comparison

RADIOACTIVITY ²²⁴Ra(α); measured decay products, Eγ, Iγ; deduced γ-ray energies and intensities, T_1/2. The national metrology institutes for the United Kingdom (UK) and the United States of America (USA) activity standards.

doi: 10.1016/j.apradiso.2020.109572
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2021WI12      Nature(London) 590, 566 (2021)

J.N.Wilson, D.Thisse, M.Lebois, N.Jovancevic, D.Gjestvang, R.Canavan, M.Rudigier, D.Etasse, R.-B.Gerst, L.Gaudefroy, E.Adamska, P.Adsley, A.Algora, M.Babo, K.Belvedere, J.Benito, G.Benzoni, A.Blazhev, A.Boso, S.Bottoni, M.Bunce, R.Chakma, N.Cieplicka-Orynczak, S.Courtin, M.L.Cortes, P.Davies, C.Delafosse, M.Fallot, B.Fornal, L.Fraile, A.Gottardo, V.Guadilla, G.Hafner, K.Hauschild, M.Heine, C.Henrich, I.Homm, F.Ibrahim, L.W.Iskra, P.Ivanov, S.Jazrawi, A.Korgul, P.Koseoglou, T.Kroll, T.Kurtukian-Nieto, L.Le Meur, S.Leoni, J.Ljungvall, A.Lopez-Martens, R.Lozeva, I.Matea, K.Miernik, J.Nemer, S.Oberstedt, W.Paulsen, M.Piersa, Y.Popovitch, C.Porzio, L.Qi, D.Ralet, P.H.Regan, K.Rezynkina, V.Sanchez-Tembleque, S.Siem, C.Schmitt, P.-A.Suderstrom, C.Surder, G.Tocabens, V.Vedia, D.Verney, N.Warr, B.Wasilewska, J.Wiederhold, M.Yavahchova, F.Zeiser, S.Ziliani

Angular momentum generation in nuclear fission

NUCLEAR REACTIONS ²³²Th(n, F), E ∼ 1.9 MeV; measured reaction products, Eγ, Iγ. ^82,84Ge, ^84,86,88Se, ^88,90,92,94Kr, ^92,94,96,98Sr, ^98,100Zr, ^130,132Sn, ^{132,134,136,138}Te, ^138,140,142Xe, ^142,144,146Ba, ^148,150Ce; deduced average J, 0+ side-feeding, fission yields, the intensity ratio of the transition from the first excited state to the ground state, and the transition(s) feeding the first excited state, dependence of average spin on fragment mass. Comparison with statistical theory, ²³³Th.

NUCLEAR REACTIONS ²³⁸U(n, F), E ∼ 1.9 MeV; measured reaction products, Eγ, Iγ. ⁸²Ge, ^84,86,88Se, ^88,90,92,94Kr, ^94,96,98Sr, ^{98,100,102,104}Zr, ^102,104Mo, ^130,132,134Sn, ^{132,134,136,138}Te, ^138,140,142Xe, ^{142,144,146,148}Ba, ^148,150Ce; deduced average J, 0+ side-feeding, fission yields, the intensity ratio of the transition from the first excited state to the ground state, and the transition(s) feeding the first excited state, dependence of average spin on fragment mass. Comparison with statistical theory, ²³⁹U.

RADIOACTIVITY ²⁵²Cf(SF); measured decay products, Eγ, Iγ, TOF. ^94,96,98Sr, ^{98,100,102,104}Zr, ^{102,104,106,108}Mo, ^108,110,112Ru, ^112,114,116Pd, ^130,132Sn, ^134,136Te, ^138,140,142Xe, ^142,144,146Ba, ^148,150Ce, ^152,154Nd; deduced average J, 0+ side-feeding, fission yields, dependence of average spin on fragment mass. Comparison with statistical theory.

doi: 10.1038/s41586-021-03304-w
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2020CO02      Appl.Radiat.Isot. 157, 109021 (2020)

S.M.Collins, R.Shearman, P.Ivanov, P.H.Regan

The impact of high-energy tailing in high-purity germanium gamma-ray spectrometry on the activity determination of ²²⁴Ra using the 241.0 keV emission

RADIOACTIVITY ²²⁴Ra(α); measured decay products, Eγ, Iγ; deduced impact of ²¹²Pb on activity determination.

doi: 10.1016/j.apradiso.2019.109021
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2020GE11      Phys.Rev. C 102, 064323 (2020)

R.-B.Gerst, A.Blazhev, N.Warr, J.N.Wilson, M.Lebois, N.Jovancevic, D.Thisse, R.Canavan, M.Rudigier, D.Etasse, E.Adamska, P.Adsley, A.Algora, M.Babo, K.Belvedere, J.Benito, G.Benzoni, A.Boso, S.Bottoni, M.Bunce, R.Chakma, N.Cieplicka-Orynczak, S.Courtin, M.L.Cortes, P.Davies, C.Delafosse, M.Fallot, B.Fornal, L.M.Fraile, D.Gjestvang, A.Gottardo, V.Guadilla, G.Hafner, K.Hauschild, M.Heine, C.Henrich, I.Homm, F.Ibrahim, L.W.Iskra, P.Ivanov, S.Jazrawi, A.Korgul, P.Koseoglou, T.Kroll, T.Kurtukian-Nieto, L.Le Meur, S.Leoni, J.Ljungvall, A.Lopez-Martens, R.Lozeva, I.Matea, K.Miernik, J.Nemer, S.Oberstedt, W.Paulsen, M.Piersa, Y.Popovitch, C.Porzio, L.Qi, D.Ralet, P.H.Regan, D.Reygadas Tello, K.Rezynkina, V.Sanchez-Tembleque, C.Schmitt, P.-A.Soderstrom, C.Surder, G.Tocabens, V.Vedia, D.Verney, B.Wasilewska, J.Wiederhold, M.Yavachova, F.Zeiser, S.Ziliani

Prompt and delayed γ spectroscopy of neutron-rich ⁹⁴Kr and observation of a new isomer

NUCLEAR REACTIONS ²³⁸U(n, F), E=fast neutrons from ¹H(⁷Li, ⁷Be)n, E=16 MeV; measured prompt and delayed Eγ, Iγ, γγ-coin, half-life of a new isomer in ⁹⁴Kr using the ν-Ball array of 24 HPGe Clover detectors, 10 coaxial HPGe detectors, all with BGO Compton shielding, and 20 LaBr₃ detectors at the ALTO facility of IPN-Orsay. ⁹⁴Kr; deduced levels, J, π, isomer, B(E1), B(E2), ground-state band up to 10+, two-quasiparticle neutron state for the isomer consistent with Gogny CHFB calculations. Comparison with level schemes of ⁹²Se and ⁹⁶Sr.

doi: 10.1103/PhysRevC.102.064323
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2019CO04      Appl.Radiat.Isot. 145, 240 (2019)

S.M.Collins, J.D.Keightley, P.Ivanov, A.Arinc, S.M.Jerome, A.J.Fenwick, A.K.Pearce

The potential radio-immunotherapeutic α-emitter ²²⁷Th - part I: Standardisation via primary liquid scintillation techniques and decay progeny ingrowth measurements

RADIOACTIVITY ²²⁷Th(α); measured decay products, Eγ, Iγ; deduced primary standardisation of the activity.

doi: 10.1016/j.apradiso.2018.12.012
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2019CO05      Appl.Radiat.Isot. 145, 251 (2019)

S.M.Collins, J.D.Keightley, P.Ivanov, A.Arinc, A.J.Fenwick, A.K.Pearce

The potential radio-immunotherapeutic α-emitter ²²⁷Th - part II: Absolute γ-ray emission intensities from the excited levels of ²²³Ra

RADIOACTIVITY ²²⁷Th(α); measured decay products, Eγ, Iγ; deduced γ-ray energies and intensities. Comparison with available data.

doi: 10.1016/j.apradiso.2018.10.023
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2019GA34      Appl.Radiat.Isot. 154, 108863 (2019)

E.Garcia-Torano, T.Crespo, M.Marouli, V.Jobbagy, S.Pomme, P.Ivanov

Alpha-particle emission probabilities of ²³¹Pa derived from first semiconductor spectrometric measurements

RADIOACTIVITY ²³¹Pa(α); measured decay products, Eα, Iα, Eγ, Iγ; deduced α-particle emission probabilities and uncertainties.

doi: 10.1016/j.apradiso.2019.108863
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2000AC06      Nucl.Phys. A675, 320c (2000)

M.N.Achasov, V.M.Aulchenko, K.I.Beloborodov, A.V.Berdyugin, A.V.Bozhenok, D.A.Bukin, S.V.Burdin, T.V.Dimova, S.I.Dolinsky, A.A.Drozdetsky, V.P.Druzhinin, M.S.Dubrovin, I.A.Gaponenko, V.B.Golubev, V.N.Ivanchenko, P.M.Ivanov, A.A.Korol, S.V.Koshuba, G.A.Kukartsev, I.N.Nesterenko, A.V.Otboev, E.V.Pakhtusova, V.M.Popov, A.A.Salnikov, S.I.Serednyakov, V.V.Shary, Yu.M.Shatunov, V.A.Sidorov, Z.K.Silagadze, Yu.V.Usov, A.V.Vasiljev, A.S.Zakharov

New Experimental Data for the Decays φ → μ⁺μ^- and φ → π⁺π^- from SND Detector

doi: 10.1016/S0375-9474(00)00274-8
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2000AK07      Nucl.Phys. A675, 424c (2000)

R.R.Akhmetshin, E.V.Anashkin, V.M.Aulchenko, V.Sh.Banzarov, L.M.Barkov, S.E.Baru, N.S.Bashtovoy, A.E.Bondar, D.V.Bondarev, A.V.Bragin, D.V.Chernyak, S.I.Eidelman, G.V.Fedotovitch, N.I.Gabyshev, A.A.Grebeniuk, D.N.Grigoriev, V.W.Hughes, P.M.Ivanov, S.V.Karpov, V.F.Kazanin, B.I.Khazin, I.A.Koop, M.S.Korostelev, P.P.Krokovny, L.M.Kurdadze, A.S.Kuzmin, I.B.Logashenko, P.A.Lukin, A.P.Lysenko, K.Yu.Mikhailov, I.N.Nesterenko, V.S.Okhapkin, A.V.Otboev, E.A.Perevedentsev, A.A.Polunin, A.S.Popov, T.A.Purlatz, N.I.Root, A.A.Ruban, N.M.Ryskulov, A.G.Shamov, Yu.M.Shatunov, A.I.Shekhtman, B.A.Shwartz, A.L.Sibidanov, V.A.Sidorov, A.N.Skrinsky, V.P.Smakhtin, I.G.Snopkov, E.P.Solodov, P.Yu.Stepanov, A.I.Sukhanov, J.A.Thompson, V.M.Titov, A.A.Valishev, Yu.V.Yudin, S.G.Zverev

Status of Experiments and Recent Results from CMD-2 Detector at VEPP-2M

doi: 10.1016/S0375-9474(00)00300-6
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1994MI20      Nucl.Instrum.Methods Phys.Res. B85, 340 (1994)

V.Miteva, D.Karpuzov, P.Ivanov, St.Angelova

Stoichiometry Effects at Cu-Ni Alloy Surfaces During 5 keV Ar Ion Sputtering at Room Temperatures

doi: 10.1016/0168-583X(94)95840-8
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1988DA21      At.Energ. 65, 147 (1988); Sov.At.Energy 65, 698 (1988)

M.G.Davydov, P.B.Ivanov, N.E.Shvartsman, B.N.Ryvkin

Effect of Energy Instability of Electron-Accelerators on Errors of Gamma-Activation Analysis

NUCLEAR REACTIONS ¹⁹⁷Au(γ, γ'), E ≈ 11-25 MeV; calculated error in energies. Instability effects of accelerators.

Note: The following list of authors and aliases matches the search parameter P.Ivanov: , P.B.IVANOV, P.M.IVANOV