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NSR database version of April 26, 2024.

Search: Author = S.Collins

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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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2024RA01      Appl.Radiat.Isot. 203, 111103 (2024)

N.C.Ramirez, S.M.Collins

A new determination of the ⁶⁸Ga half-life and evaluation of literature data

RADIOACTIVITY ⁶⁸Ga(EC), (β⁺); measured decay products, Eγ, Iγ; deduced T_1/2. Comparison with available data.

doi: 10.1016/j.apradiso.2023.111103
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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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2023PO06      Appl.Radiat.Isot. 197, 110828 (2023)

S.Pomme, M.C.Veale, D.E.Pooley, F.Van Assche, F.Falksohn, S.M.Collins

Analysis of a neutron-induced conversion electron spectrum of gadolinium

NUCLEAR REACTIONS ^155,157Gd(n, γ), E=0.5–100 meV; measured reaction products, X-rays, Eβ, Iβ; deduced internal conversion electron (ICE) spectrum, relative ICE intensities, Comparison with with internal conversion coefficient (ICC) values calculated from the BrIcc database. The LOQ facility at the ISIS neutron and muon source.

doi: 10.1016/j.apradiso.2023.110828
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2022BE09      Appl.Radiat.Isot. 184, 110161 (2022)

D.E.Bergeron, K.Kossert, S.M.Collins, A.J.Fenwick

Realization and dissemination of activity standards for medically important alpha-emitting radionuclides

RADIOACTIVITY ^223,224Ra, ²²⁵Ac, ²²⁷Th(α); measured decay products, Eγ, Iγ; deduced activity standards for alpha-emitting nuclides. Comparison with ENSDF and DDEP data.

doi: 10.1016/j.apradiso.2022.110161
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2022CO02      Appl.Radiat.Isot. 182, 110140 (2022)

S.M.Collins, C.Gilligan, B.Pierson, N.Ramirez, M.Goodwin, A.K.Pearce, B.C.Archambault, M.M.Haney, P.H.Regan

Determination of the ¹⁶¹Tb half-life

RADIOACTIVITY ¹⁶¹Tb(β^-) [from ¹⁶⁰Gd(n, γ), E not given]; measured decay products, Eβ, Iβ, Eγ, Iγ; deduced γ-ray energies, T_1/2 and uncertainties. Comparison with available data.

doi: 10.1016/j.apradiso.2022.110140
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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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2021HA13      Phys.Rev. C 103, 034317 (2021)

G.Hafner, R.Lozeva, H.Naidja, M.Lebois, N.Jovancevic, D.Thisse, D.Etasse, R.L.Canavan, M.Rudigier, J.N.Wilson, E.Adamska, P.Adsley, M.Babo, K.Belvedere, J.Benito, G.Benzoni, A.Blazhev, A.Boso, S.Bottoni, M.Bunce, R.Chakma, N.Cieplicka-Orynczak, S.M.Collins, M.L.Cortes, P.J.Davies, C.Delafosse, M.Fallot, B.Fornal, L.M.Fraile, R.-B.Gerst, D.Gjestvang, V.Guadilla, K.Hauschild, C.Henrich, I.Homm, F.Ibrahim, L.W.Iskra, S.Jazwari, J.Jolie, A.Korgul, P.Koseoglou, Th.Kroll, T.Kurtukian-Nieto, L.Le-meur, J.Ljungvall, A.Lopez-Martens, I.Matea, L.Matthieu, 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, C.Schmitt, P.-A.Soderstrom, C.Surder, G.Tocabens, V.Vedia, D.Verney, N.Warr, B.Wasilewska, J.Wiederhold, M.S.Yavahchova, F.Zeiser, S.Ziliani

Spectroscopy and lifetime measurements in ^{134, 136, 138}Te isotopes and implications for the nuclear structure beyond N = 82

NUCLEAR REACTIONS ²³⁸U(n, F)¹³⁴Te/¹³⁶Te/¹³⁸Te, E AP 1.7 MeV; measured Eγ, Iγ, γγ-coin, half-lives of first 2+, 4+ and 6+ states in ^134,136,138Te and (12+) isomer in ¹³⁴Te by γγ(t) fast timing technique using HPGe and LaBr₃(Ce) detectors at the ALTO facility of IJCLab with the LICORNE neutron source and the hybrid ν-ball spectrometer. ^134,136,138Te; deduced levels, J, π, B(E2), mixed symmetry state, configurations. Comparison with previous measurements, and with state-of-the-art shell-model calculations.

NUCLEAR STRUCTURE ^134,136,138Te; calculated levels, J, π for ^136,138Te, decomposition of the wave functions for several yrast states in all three nuclides. Large-scale shell-model calculations. Comparison with experimental data.

doi: 10.1103/PhysRevC.103.034317
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2021HA28      Phys.Rev. C 104, 014316 (2021)

G.Hafner, R.Lozeva, H.Naidja, M.Lebois, N.Jovancevic, D.Thisse, D.Etasse, R.L.Canavan, M.Rudigier, J.N.Wilson, 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.M.Collins, M.L.Cortes, P.J.Davies, C.Delafosse, M.Fallot, L.M.Fraile, R.-B.Gerst, D.Gjestvang, V.Guadilla, K.Hauschild, C.Henrich, I.Homm, F.Ibrahim, L.W.Iskra, S.Jazwari, A.Korgul, P.Koseoglou, Th.Kroll, T.Kurtukian-Nieto, L.Le-meur, S.Leoni, J.Ljungvall, A.Lopez-Martens, L.Matthieu, K.Miernik, J.Nemer, S.Oberstedt, W.Paulsen, M.Piersa-Silkowska, 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, N.Warr, B.Wasilewska, J.Wiederhold, M.S.Yavahchova, F.Zeiser, S.Ziliani

First lifetime investigations of N ≥ 82 iodine isotopes: The quest for collectivity

NUCLEAR REACTIONS ²³⁸U(n, F)¹³⁵I/¹³⁷I/¹³⁹I, E ∼ 1.7 MeV from LICORNE neutron source at the ALTO facility of IJCLab; measured Eγ, Iγ, γγ-coin, level T_1/2 by γγ(t) using ν-ball spectrometer of HPGe and LaBr₃(Ce) detectors. ^135,137,139I; deduced high-spin levels, J, π, B(E2), B(M1), B(E3), configurations; calculated occupations for the most prominent proton or neutron-proton configurations. Comparison with previous experimental data, and with large scale shell-model (LSSM) calculations using N3LOP (SM-I) and Kuo-Herling (SM-II) effective interactions. Systematics of B(E2) for yrast states of ^134,136,138Te and ^135,137,139I.

doi: 10.1103/PhysRevC.104.014316
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2020AD05      Acta Phys.Pol. B51, 843 (2020)

E.Adamska, A.Korgul, A.Fijalkowska, K.Miernik, M.Piersa, R.Canavan, D.Etasse, N.Jovancevic, M.Lebois, M.Rudigier, D.Thisse, J.N.Wilson, P.Adsley, A.Algora, M.Babo, K.Belvedere, J.Benito, A.Blazhev, G.Benzoni, A.Boso, S.Bottoni, M.Bunce, R.Chakma, N.Cieplicka-Orynczak, M.Ciemala, S.Collins, L.Cortes, P.Davies, C.Delafosse, M.Fallot, B.Fornal, L.M.Fraile, R.-B.Gerst, D.Gjestvang, A.Gottardo, V.Guadilla, G.Hafner, K.Hauschild, M.Heine, C.Henrich, I.Homm, F.Ibrahim, L.W.Iskra, P.Koseoglou, T.Kroll, T.Kurtukian Nieto, L.Le-Meur, S.Leoni, J.Ljungvall, A.Lopez-Martens, R.Lozeva, I.Matea, J.Nemer, S.Oberstedt, W.Paulsen, Y.Popovitch, 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, N.Warr, B.Wasilewska, M.Yavahchova, F.Zeiser

γ-ray Spectroscopy of 85Se Produced in ²³²Th Fission

doi: 10.5506/APhysPolB.51.843
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2020CA03      Phys.Rev. C 101, 024313 (2020)

R.L.Canavan, M.Rudigier, P.H.Regan, M.Lebois, J.N.Wilson, N.Jovancevic, P.-A.Soderstrom, S.M.Collins, D.Thisse, J.Benito, S.Bottoni, M.Brunet, N.Cieplicka-Orynczak, S.Courtin, D.T.Doherty, L.M.Fraile, K.Hadynska-Klek, G.Hafner, M.Heine, L.W.Iskra, V.Karayonchev, A.Kennington, P.Koseoglou, G.Lotay, G.Lorusso, M.Nakhostin, C.R.Nita, S.Oberstedt, Zs.Podolyak, L.Qi, J.-M.Regis, V.Sanchez-Tembleque, R.Shearman, V.Vedia, W.Witt

Half-life measurements in ^{164, 166}Dy using γ-γ fast-timing spectroscopy with the ν-Ball spectrometer

NUCLEAR REACTIONS ¹⁶⁴Dy(¹⁸O, ¹⁸O'), E=71, 76, 80 MeV pulsed beam; ¹⁶⁴Dy(¹⁸O, ¹⁶O)¹⁶⁶Dy, E=78 MeV; measured Eγ, Iγ, level half-lives by γγ(t) fast-timing triple coincidence method using ν-Ball with 24 HPGe clover detectors, ten coaxial HPGe detectors, and 20 LaBr₃ detectors. ^164,166Dy; deduced levels, J, π, B(E2), β₂ and transition quadrupole moments. Comparison with values for ¹⁶⁴Dy in the ENSDF database at NNDC.

doi: 10.1103/PhysRevC.101.024313
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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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2020FE10      Appl.Radiat.Isot. 166, 109294 (2020)

A.J.Fenwick, S.M.Collins, W.D.Evans, K.M.Ferreira, S.J.Paisey, A.P.Robinson, C.Marshall

Absolute standardisation and determination of the half-life and gamma emission intensities of ⁸⁹Zr

RADIOACTIVITY ⁸⁹Zr(EC); measured decay products, Eβ, Iβ, Eγ, Iγ; deduced γ-ray energies and intensities, T_1/2. Comparison with available data.

doi: 10.1016/j.apradiso.2020.109294
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2020GO07      Nucl.Instrum.Methods Phys.Res. A978, 164452 (2020)

M.A.Goodwin, R.Britton, A.V.Davies, S.J.Bell, S.M.Collins, P.H.Regan

A high-resolution β-γ coincidence spectrometry system for radioxenon measurements

RADIOACTIVITY ^133,135Xe(β^-), ^131,133Xe(IT), ²¹⁴Pb(β^-); measured decay products, Eγ, Iγ, Eβ, Iβ, X-rays; deduced radioxenon activities, X-ray branching ratios, β-spectra. International Monitoring System (IMS), Comprehensive Nuclear-Test-Ban Treaty (CTBT) radionuclide laboratory.

doi: 10.1016/j.nima.2020.164452
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2019BA36      Eur.Phys.J. A 55, 116 (2019)

G.S.Bali, V.M.Braun, S.Burger, S.Collins, M.Gockeler, M.Gruber, F.Hutzler, P.Korcyl, A.Schafer, W.Soldner, A.Sternbeck, P.Wein, for the RQCD Collaboration

Light-cone distribution amplitudes of octet baryons from lattice QCD

doi: 10.1140/epja/i2019-12803-6
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2019BO14      Appl.Radiat.Isot. 153, 108826 (2019)

C.Bobin, J.Bouchard, V.Chiste, S.M.Collins, P.Dryak, A.Fenwick, J.Keightley, M.-C.Lepy, V.Lourenco, A.P.Robinson, J.Sochorova, J.Solc, C.Thiam

Activity measurements and determination of nuclear decay data of ¹⁶⁶Ho in the MRT Dosimetry project

RADIOACTIVITY ¹⁶⁶Ho(β^-); measured decay products, Eγ, Iγ, X-rays, Eβ, Iβ; deduced T_1/2.

doi: 10.1016/j.apradiso.2019.108826
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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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2018LO02      Europhys.Lett. 120, 22001 (2018)

G.Lorusso, S.M.Collins, K.Jagan, G.W.Hitt, A.M.Sadek, P.M.Aitken-Smith, D.Bridi, J.D.Keightley

Measuring radioactive half-lives via statistical sampling in practice

RADIOACTIVITY ²¹¹Pb(β^-); analyzed available data; deduced T_1/2.

doi: 10.1209/0295-5075/120/22001
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2017PO15      Metrologia 54, 19 (2017)

S.Pomme, H.Stroh, J.Paepen, R.Van Ammel, M.Marouli, T.Altzitzoglou, M.Hult, K.Kossert, O.Nahle, H.Schrader, F.Juget, C.Bailat, Y.Nedjadi, F.Bochud, T.Buchillier, C.Michotte, S.Courte, M.W.van Rooy, M.J.van Staden, J.Lubbe, B.R.S.Simpson, A.Fazio, P.De Felice, T.W.Jackson, W.M.Van Wyngaardt, M.I.Reinhard, J.Golya, S.Bourke, T.Roy, R.Galea, J.D.Keightley, K.M.Ferreira, S.M.Collins, A.Ceccatelli, L.Verheyen, M.Bruggeman, B.Vodenik, M.Korun, V.Chiste, M.-N.Amiot

On decay constants and orbital distance to the Sun-part II: beta minus decay

RADIOACTIVITY ³H, ¹⁴C, ⁶⁰Co, ⁸⁵Kr, ⁹⁰Sr, ¹²⁴Sb, ^134,137Cs, ¹⁵⁴Eu(β^-); analyzed available data from radionuclide metrology laboratories, residuals from the exponential decay curves for annual oscillations; deduced systematic deviations from a purely exponential decay curve differ in amplitude and phase from one data set to another and appear attributable to instabilities in the instrumentation and measurement conditions, oscillations in phase with Earth's orbital distance to the Sun could not be observed, no apparent indications for systematic oscillations at a level of weeks or months.

doi: 10.1088/1681-7575/54/1/19
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2017PO16      Metrologia 54, 1 (2017)

S.Pomme, H.Stroh, J.Paepen, R.Van Ammel, M.Marouli, T.Altzitzoglou, M.Hult, K.Kossert, O.Nahle, H.Schrader, F.Juget, C.Bailat, Y.Nedjadi, F.Bochud, T.Buchillier, C.Michotte, S.Courte, M.W.van Rooy, M.J.van Staden, J.Lubbe, B.R.S.Simpson, A.Fazio, P.De Felice, T.W.Jackson, W.M.Van Wyngaardt, M.I.Reinhard, J.Golya, S.Bourke, T.Roy, R.Galea, J.D.Keightley, K.M.Ferreira, S.M.Collins, A.Ceccatelli, L.Verheyen, M.Bruggeman, B.Vodenik, M.Korun, V.Chiste, M.-N.Amiot

On decay constants and orbital distance to the Sun-part I: alpha decay

RADIOACTIVITY ²⁰⁹Po, ²²⁶Ra, ²²⁸Th, ²³⁰U, ²⁴¹Am(α); analyzeed two decades of data from various nuclear metrology institutes around the globe, residuals from the exponential decay curves for annual oscillations; deduced that systematic deviations from a purely exponential decay curve differ in amplitude and phase from one data set to another are attributable to instabilities in the instrumentation and measurement conditions, lack of apparent indications for systematic oscillations at a level of weeks or months.

doi: 10.1088/1681-7575/54/1/1
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2017PO17      Metrologia 54, 36 (2017)

S.Pomme, H.Stroh, J.Paepen, R.Van Ammel, M.Marouli, T.Altzitzoglou, M.Hult, K.Kossert, O.Nahle, H.Schrader, F.Juget, C.Bailat, Y.Nedjadi, F.Bochud, T.Buchillier, C.Michotte, S.Courte, M.W.van Rooy, M.J.van Staden, J.Lubbe, B.R.S.Simpson, A.Fazio, P.De Felice, T.W.Jackson, W.M.Van Wyngaardt, M.I.Reinhard, J.Golya, S.Bourke, T.Roy, R.Galea, J.D.Keightley, K.M.Ferreira, S.M.Collins, A.Ceccatelli, L.Verheyen, M.Bruggeman, B.Vodenik, M.Korun, V.Chiste, M.-N.Amiot

On decay constants and orbital distance to the Sun-part III: beta plus and electron capture decay

RADIOACTIVITY ²²Na, ⁵⁴Mn, ⁵⁵Fe, ⁵⁷Co, ⁶⁵Zn, ^82,85Sr, ¹⁰⁹Cd, ¹³³Ba, ¹⁵²Eu(EC), (β⁺), ⁹⁰Sr, ¹²⁴Sb(β^-); analyzed available data on repeated over periods from 200 d up to more than four decades at 14 laboratories across the globe, residuals from the exponential nuclear decay curves for annual oscillations; deduced that systematic deviations from a purely exponential decay curve differ from one data set to another attributable to instabilities in the instrumentation and measurement conditions, oscillations in phase with Earth's orbital distance to the sun could not be observed, lack of apparent indications for systematic oscillations at a level of weeks or months.

doi: 10.1088/1681-7575/54/1/36
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2016AI01      Appl.Radiat.Isot. 110, 59 (2016)

P.M.Aitken-Smith, S.M.Collins

Measurement of the ²¹¹Pb half-life using recoil atoms from ²¹⁹Rn decay

RADIOACTIVITY ²¹¹Pb(α); measured decay products, Eα, Iα; deduced T_1/2. Comparison with available data.

doi: 10.1016/j.apradiso.2016.01.004
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2016CO01      Appl.Radiat.Isot. 108, 143 (2016)

S.M.Collins, A.V.Harms, P.H.Regan

Half-life determination of the ground state decay of ¹¹¹Ag

RADIOACTIVITY ¹¹¹Ag(β^-) [from ¹¹⁰Pd(n, γ), E not given]; measured decay products, Eγ, Iγ; deduced experimental and recommended T_1/2.

doi: 10.1016/j.apradiso.2015.12.044
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2016FE04      Appl.Radiat.Isot. 109, 151 (2016)

A.J.Fenwick, K.M.Ferreira, S.M.Collins

Measurement of the ¹⁰⁹Cd half-life

RADIOACTIVITY ¹⁰⁹Cd(EC); measured decay products, Eβ, Iβ, Eγ, Iγ; deduced T_1/2 and its uncertainty. Comparison with available data.

doi: 10.1016/j.apradiso.2015.11.049
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2016PO08      Phys.Lett. B 761, 281 (2016)

S.Pomme, H.Stroh, J.Paepen, R.Van Ammel, M.Marouli, T.Altzitzoglou, M.Hult, K.Kossert, O.Nahle, H.Schrader, F.Juget, C.Bailat, Y.Nedjadi, F.Bochud, T.Buchillier, C.Michotte, S.Courte, M.W.van Rooy, M.J.van Staden, J.Lubbe, B.R.S.Simpson, A.Fazio, P.De Felice, T.W.Jackson, W.M.Van Wyngaardt, M.I.Reinhard, J.Golya, S.Bourke, T.Roy, R.Galea, J.D.Keightley, K.M.Ferreira, S.M.Collins, A.Ceccatelli, M.Unterweger, R.Fitzgerald, D.E.Bergeron, L.Pibida, L.Verheyen, M.Bruggeman, B.Vodenik, M.Korun, V.Chiste, M.-N.Amiot

Evidence against solar influence on nuclear decay constants

RADIOACTIVITY ²⁰⁹Po, ²²⁶Ra, ²²⁸Th, ²³⁰U, ²⁴¹Am(α), ³H, ¹⁴C, ⁶⁰Co, ⁸⁵Kr, ⁹⁰Sr, ¹²⁴Sb, ^134,137Cs(β^-), ⁵⁴Mn, ⁵⁵Fe, ⁵⁷Co, ^82,85Sr, ¹⁰⁹Cd, ¹³³Ba(EC), ²²Na, ⁶⁵Zn, ²⁰⁷Bi(EC), (β⁺), ¹⁵²Eu(β^-), (EC), (β⁺); measured decay products; deduced decay constant vs. solar activity, exponential nature of nuclear decay.

doi: 10.1016/j.physletb.2016.08.038
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2015CO02      Appl.Radiat.Isot. 99, 46 (2015)

S.M.Collins, A.K.Pearce, K.M.Ferreira, A.J.Fenwick, P.H.Regan, J.D.Keightley

Direct measurement of the half-life of ²²³Ra

RADIOACTIVITY ²²³Ra(α); measured decay products, Eα, Iα, Eγ, Iγ; deduced T_1/2 and its uncertainties. Comparison with available data.

doi: 10.1016/j.apradiso.2015.02.003
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2015CO07      Appl.Radiat.Isot. 102, 15 (2015)

S.M.Collins, A.K.Pearce, P.H.Regan, J.D.Keightley

Precise measurements of the absolute γ-ray emission probabilities of ²²³Ra and decay progeny in equilibrium

RADIOACTIVITY ²²³Ra, ²¹⁹Rn, ²¹⁵Po, ²¹¹Bi(α), ²¹¹Pb, ²⁰⁷Tl(β^-); measured decay products, Eγ, Iγ; deduced γ-ray emission probabilities, α-transition probabilities of the ²²³Ra. Comparison with available data.

doi: 10.1016/j.apradiso.2015.04.008
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2015CO11      Appl.Radiat.Isot. 104, 203 (2015)

S.M.Collins, S.Pomme, S.M.Jerome, K.M.Ferreira, P.H.Regan, A.K.Pearce

The half-life of ²²⁷Th by direct and indirect measurements

RADIOACTIVITY ²²⁷Th(α); measured decay products, Eγ, Iγ, Eα, Iα; deduced T_1/2 and its uncertainties. Comparison with available data.

doi: 10.1016/j.apradiso.2015.07.001
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2014CO08      Appl.Radiat.Isot. 87, 107 (2014)

S.Collins, J.Keightley, C.Gilligan, J.Gasparro, A.Pearce

Determination of the gamma emission intensities of ¹¹¹Ag

RADIOACTIVITY ¹¹¹Ag(β^-); measured decay products, Eγ, Iγ; deduced γ-ray intensities, energy levels. Comparison with available data.

doi: 10.1016/j.apradiso.2013.11.007
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2010AL16      Eur.Phys.J. A 43, 107 (2010)

A.Al-Haydari, A.Ali Khan, V.M.Braun, S.Collins, M.Gockeler, G.N.Lacagnina, M.Panero, A.Schafer, G.Schierholz, for the QCDSF Collaboration

Semileptonic form factors D → π, K and B → π, K from a fine lattice

doi: 10.1140/epja/i2009-10893-3
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2004WO02      Appl.Radiat.Isot. 60, 257 (2004)

M.J.Woods, S.M.Collins

Half-life data - a critical review of TECDOC-619 update

COMPILATION ^23,24Na, ⁴⁰K, ⁴⁶Sc, ⁵¹Cr, ^54,56Mn, ^55,59Fe, ^56,57,58,60Co, ⁶⁴Cu, ⁶⁵Zn, ^66,67,68Ga, ⁷⁵Se, ⁸⁵Kr, ⁸⁵Sr, ⁸⁸Y, ^93m,94,95Nb, ⁹⁹Mo, ^99mTc, ^103,106Ru, ¹⁰⁶Rh, ¹⁰⁹Cd, ^110mAg, ¹¹¹In, ¹¹³Sn, ^{123,125,129,131}I, ^123mTe, ¹²⁵Sb, ¹³³Ba, ^134,137Cs, ^139,141,144Ce, ^152,154,155Eu, ¹⁵³Sm, ^166,166mHo, ¹⁶⁹Yb, ¹⁷⁰Tm, ¹⁹⁸Au, ²⁰¹Tl, ²⁰³Hg, ²⁰⁷Bi, ²²⁶Ra, ²²⁸Th, ^234mPa, ^241,243Am; compiled, analyzed T_1/2.

doi: 10.1016/j.apradiso.2003.11.026
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1999CO28      Fizika(Zagreb) B8, 239 (1999)

S.Collins

Latest Results from Lattice NRQCD

1989CO01      J.Phys.(London) G15, 321 (1989)

S.P.Collins, S.A.Eid, S.A.Hamada, W.D.Hamilton, F.Hoyler

A Search for Mixed-Symmetry States in the Mass A ≈ 50 Region

RADIOACTIVITY ⁵⁶Mn(β^-); measured γ(θ). ⁵⁶Fe levels deduced δ. Cryogenically oriented nuclei.

NUCLEAR REACTIONS ⁴⁷Ti, ⁵³Cr, ⁵⁷Fe(n, γ), E=thermal; measured γγ(θ). ⁴⁸Ti, ⁵⁴Cr, ⁵⁸Fe levels deduced δ, μ, B(λ). Enriched target, on-line directional correlations.

doi: 10.1088/0954-3899/15/3/010
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1988CO05      Nucl.Phys. A481, 494 (1988)

S.F.Collins, G.G.Shute, B.M.Spicer, V.C.Officer, D.W.Devins, D.L.Friesel, W.P.Jones

The Spectroscopy of ¹³C by Inelastic Proton Scattering

NUCLEAR REACTIONS ¹³C(p, p)(p, p'), E=135 MeV; ¹³C(polarized p, p)(polarized p, p'), E=119 MeV; measured σ(θ), A(θ). Optical model, DWA analyses, density-dependent t-matrices.

doi: 10.1016/0375-9474(88)90342-9
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1986AN30      Nucl.Phys. A459, 317 (1986)

P.R.Andrews, G.G.Shute, B.M.Spicer, S.F.Collins, V.C.Officer, J.M.Wastell, H.Nann, D.W.Devins, Q.Li, W.P.Jones, C.Olmer, A.D.Bacher, G.T.Emery

Location of Multiparticle-Multihole Strength in ¹⁶N via the 3-Particle Transfer Reaction ¹³C(α, p)¹⁶N at 118 MeV

NUCLEAR REACTIONS ¹³C(α, p), E=118 MeV; measured σ(θ). ¹⁶N levels deduced J, π, multiparticle-multihole strength. DWBA analysis, microscopic form factors.

doi: 10.1016/0375-9474(86)90137-5
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1985SH04      Phys.Lett. 153B, 221 (1985)

T.L.Shaw, V.R.Green, N.J.Stone, J.Rikovska, P.M.Walker, S.Collins, S.A.Hamada, W.D.Hamilton, I.S.Grant

On-Line Nuclear Orientation of ¹¹⁸I and the Identification of the g_9/2 Intruder Orbital

RADIOACTIVITY ^118,118mI(β⁺), (EC) [from ⁹³Nb(³²S, xnyp), E=175 MeV]; measured γγ-coin, γγ(θ), γ(θ), oriented nuclei; deduced μ. ¹¹⁸Te deduced level, J, π, K, γ-multipolarity, possible shape coexistence role.

doi: 10.1016/0370-2693(85)90535-0
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1985SH16      Hyperfine Interactions 22, 539 (1985)

T.L.Shaw, V.R.Green, N.J.Stone, P.M.Walker, W.D.Hamilton, S.Collins, I.Grant, J.Rikovska

Nuclear Orientation and Coincidence Studies of ¹¹⁸I and ¹¹⁸Cs Isotopes

RADIOACTIVITY ^118,118mI(β^-), ^118,118mCs(β⁺), (EC) [from ⁹³Nb(³²S, X), (³⁴S, X), E=175 MeV]; measured γγ(θ), γ(θ), oriented nuclei in Fe. ¹¹⁸I deduced isomer μ. ¹¹⁸Te deduced levels, γ-branching, J, π. ¹¹⁸Xe deduced transition energy.

doi: 10.1007/BF02064022
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1984AM04      Nucl.Phys. A413, 255 (1984)

K.Amos, W.Bauhoff, I.Morrison, S.F.Collins, R.S.Henderson, B.M.Spicer, G.G.Shute, V.C.Officer, D.W.Devins, D.L.Friesel, W.P.Jones

Microscopic and Macroscopic Aspects of 135 MeV Proton Scattering from ¹⁶O

NUCLEAR REACTIONS ¹⁶O(p, p'), E=135 MeV; measured σ(θ). ¹⁶O deduced level, tentative J, π. Optical model, DWBA analyses, collective, shell model wave functions, density-dependent t-matricies.

doi: 10.1016/0375-9474(84)90375-0
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1983BA57      Nucl.Phys. A410, 180 (1983)

W.Bauhoff, S.F.Collins, R.S.Henderson, G.G.Shute, B.M.Spicer, V.C.Officer, K.A.Amos, I.Morrison, D.W.Devins, D.L.Friesel, W.P.Jones

Density-Dependent Forces and Large-Basis Structure Models in the Analyses of ¹²C(p, p') Reactions at 135 MeV

NUCLEAR REACTIONS ¹²C(p, p'), (p, p), E=135 MeV; measured σ(θ). Optical model, DWBA analyses, density-dependent t-matrices.

doi: 10.1016/0375-9474(83)90198-7
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1982CO08      Nucl.Phys. A380, 445 (1982)

S.F.Collins, G.G.Shute, B.M.Spicer, V.C.Officer, I.Morrison, K.A.Amos, D.W.Devins, D.L.Friesel, W.P.Jones

A Study of the ¹³C(p, p') Reactions at 135 MeV

NUCLEAR REACTIONS ¹³C(p, p), (p, p'), E=135 MeV; measured σ(θ). ¹³C levels deduced possible configuration. Optical model, DWBA analyses.

doi: 10.1016/0375-9474(82)90570-X
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1982RI05      Aust.J.Phys. 35, 9 (1982); Corrigendum Aust.J.Phys. 35, 351 (1982)

L.Rikus, S.F.Collins, K.A.Amos, B.M.Spicer, G.G.Shute, I.Morrison, V.C.Officer, R.Smith, D.W.Devins, D.L.Friesel, W.P.Jones

Excitation of the 9.50 MeV (9/2+) States of ¹³C in Intermediate Energy Scattering Experiments

NUCLEAR REACTIONS ¹³C(p, p'), E=135 MeV; measured σ(θ). ¹³C state deduced total angular momentum transfer, configuration. Microscopic DWBA analysis.

1981DE19      Phys.Rev. C24, 59 (1981)

D.W.Devins, D.L.Friesel, W.P.Jones, A.C.Attard, S.F.Collins, G.G.Shute, B.M.Spicer, V.C.Officer, I.D.Svalbe, R.S.Henderson, W.E.Dollhopf

⁴⁰Ca(d, ³He)³⁹K Reaction at 76 MeV

NUCLEAR REACTIONS ⁴⁰Ca(d, ³He), E=76 MeV; measured σ(θ, E(³He)). ³⁹K deduced levels, J, π, L, C²S. Enriched targets. DWBA, CCBA analyses.

doi: 10.1103/PhysRevC.24.59
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1981HE21      Nucl.Phys. A372, 117 (1981)

R.S.Henderson, S.F.Collins, B.M.Spicer, G.G.Shute, V.C.Officer, D.W.Devins, D.L.Friesel, W.P.Jones

The Scattering of 136 MeV Protons from ⁶Li

NUCLEAR REACTIONS ⁶Li(p, p), (p, p'), E=136 MeV; measured σ(θ). Optical model, DWBA analyses.

doi: 10.1016/0375-9474(81)90090-7
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Note: The following list of authors and aliases matches the search parameter S.Collins: , S.F.COLLINS, S.M.COLLINS, S.P.COLLINS