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NSR database version of April 27, 2024.

Search: Author = J.Paepen

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2024PO03      Nucl.Data Sheets 193, 79 (2024)

S.Pomme, H.Stroh, J.Paepen

Measurement of the ²²Na half-life and evidence supporting the exponential-decay law

RADIOACTIVITY ²²Na(EC), (β⁺); measured decay products, Eβ, Iβ; deduced T_1/2 using 523 activity measurements over 14.5 years with a re-entrant ionisation chamber in a temperature-stabilised room, the validity of the exponential-decay law.

doi: 10.1016/j.nds.2024.01.002
Citations: PlumX Metrics

2019PO04      Appl.Radiat.Isot. 153, 108848 (2019)

S.Pomme, J.Paepen, M.Marouli

Conversion electron spectroscopy of the 59.54 keV transition in ²⁴¹Am alpha decay

RADIOACTIVITY ²⁴¹Am(α); measured decay products, Eβ, Iβ; deduced CE intensities. Comparison with the theoretical internal conversion coefficient (ICC) values calculated from the BrIcc database.

doi: 10.1016/j.apradiso.2019.108848
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Data from this article have been entered in the XUNDL database. For more information, click here.

2018PO02      Appl.Radiat.Isot. 134, 6 (2018)

S.Pomme, H.Stroh, T.Altzitzoglou, J.Paepen, R.Van Ammel, K.Kossert, O.Nahle, J.D.Keightley, K.M.Ferreira, L.Verheyen, M.Bruggeman

Is decay constant?

RADIOACTIVITY ³H, ¹⁴C, ⁹⁰Sr, ¹³⁴Cs(β^-), ¹⁵²Eu(EC), (β^-), (β⁺), ²²Na, ⁶⁵Zn(β⁺), (EC), ⁵⁴Mn, ¹⁰⁹Cd(EC), ²⁰⁹Po, ²⁴¹Am(α), ²²⁶Ra(α); analyzed available data for presence of systematic modulations; deduced amplitudes of fitted oscillations to residuals from exponential decay do not exceed 3 times their standard uncertainty, contradiction of the assertion that neutrino-induced beta decay provides information about the deep solar interior.

doi: 10.1016/j.apradiso.2017.09.002
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2018PO10      Appl.Radiat.Isot. 140, 171 (2018)

S.Pomme, J.Paepen, R.Van Ammel

Linearity check of an ionisation chamber through ^99mTc half-life measurements

RADIOACTIVITY ⁹⁹Tc(IT); measured decay products; deduced T_1/2. Comparison with available data.

doi: 10.1016/j.apradiso.2018.07.004
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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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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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2016PO11      Appl.Radiat.Isot. 109, 183 (2016)

S.Pomme, J.Paepen, K.Perajarvi, J.Turunen, R.Pollanen

Conversion electron spectrometry of Pu isotopes with a silicon drift detector

doi: 10.1016/j.apradiso.2015.11.052
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2014MA14      Appl.Radiat.Isot. 87, 292 (2014)

M.Marouli, S.Pomme, V.Jobbagy, R.Van Ammel, J.Paepen, H.Stroh, L.Benedik

Alpha-particle emission probabilities of ²³⁶U obtained by alpha spectrometry

RADIOACTIVITY ²³⁶U(α); measured decay products, Eα, Iα; deduced α-emission probabilities, conversion electrons.

doi: 10.1016/j.apradiso.2013.11.020
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Data from this article have been entered in the XUNDL database. For more information, click here.

2014PO02      Appl.Radiat.Isot. 87, 315 (2014)

S.Pomme, E.Garcia-Torano, M.Marouli, M.T.Crespo, V.Jobbagy, R.Van Ammel, J.Paepen, H.Stroh

High-resolution alpha-particle spectrometry of ²³⁸U

RADIOACTIVITY ²³⁸U(α); measured decay products, Eα, Iα; deduced α-emission probabilities and their uncertainties.

doi: 10.1016/j.apradiso.2013.11.075
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Data from this article have been entered in the XUNDL database. For more information, click here.

2013MA13      Appl.Radiat.Isot. 74, 123 (2013)

M.Marouli, G.Suliman, S.Pomme, R.Van Ammel, V.Jobbagy, H.Stroh, H.Dikmen, J.Paepen, A.Dirican, F.Bruchertseifer, C.Apostolidis, A.Morgenstern

Decay data measurements on ²¹³Bi using recoil atoms

RADIOACTIVITY ²¹³Bi(β^-), (α); measured decay products, Eα, Iα; deduced T_1/2, α-emission probabilities, branchings. Comparison with available data.

doi: 10.1016/j.apradiso.2012.12.005
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Data from this article have been entered in the XUNDL database. For more information, click here.

2013SU13      Appl.Radiat.Isot. 77, 32 (2013)

G.Suliman, S.Pomme, M.Marouli, R.Van Ammel, H.Stroh, V.Jobbagy, J.Paepen, A.Dirican, F.Bruchertseifer, C.Apostolidis, A.Morgenstern

Half-lives of ²²¹Fr, ²¹⁷At, ²¹³Bi, ²¹³Po and ²⁰⁹Pb from the ²²⁵Ac decay series

RADIOACTIVITY ²²¹Fr, ²¹⁷At(α), ²¹³Bi(β^-), ²¹³Po(α), ²⁰⁹Pb(β^-); measured decay products, Eα, Iα, Eβ, Iβ; deduced T_1/2 and their uncertainties. Comparison with available data.

doi: 10.1016/j.apradiso.2013.02.008
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Data from this article have been entered in the XUNDL database. For more information, click here.

2012MA30      Appl.Radiat.Isot. 70, 2270 (2012)

M.Marouli, S.Pomme, J.Paepen, R.Van Ammel, V.Jobbagy, A.Dirican, G.Suliman, H.Stroh, C.Apostolidis, K.Abbas, A.Morgenstern

High-resolution alpha-particle spectrometry of the ²³⁰U decay series

RADIOACTIVITY ²³⁰U, ²²⁶Th(α); measured decay products, Eα, Iα; deduced α-particle emission probabilities and energies, uncertainties. Comparison with available data.

doi: 10.1016/j.apradiso.2012.02.107
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2012PO12      Appl.Radiat.Isot. 70, 1900 (2012)

S.Pomme, T.Altzitzoglou, R.Van Ammel, G.Suliman, M.Marouli, V.Jobbagy, J.Paepen, H.Stroh, C.Apostolidis, K.Abbas, A.Morgenstern

Measurement of the ²³⁰U half-life

RADIOACTIVITY ²³⁰U(α); measured decay products, Eα, Iα, Eγ, Iγ, Eβ, Iβ; deduced T_1/2 and its uncertainties. Comparison with available data.

doi: 10.1016/j.apradiso.2012.02.053
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Data from this article have been entered in the XUNDL database. For more information, click here.

2012PO13      Appl.Radiat.Isot. 70, 1913 (2012)

S.Pomme, G.Suliman, M.Marouli, R.Van Ammel, V.Jobbagy, J.Paepen, H.Stroh, C.Apostolidis, K.Abbas, A.Morgenstern

Measurement of the ²²⁶Th and ²²²Ra half-lives

RADIOACTIVITY ²²⁶Th, ²²²Ra(α); measured decay products, Eα, Iα; deduced T_1/2 and their uncertainties. Comparison with available data.

doi: 10.1016/j.apradiso.2012.02.117
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Data from this article have been entered in the XUNDL database. For more information, click here.

2012PO14      Appl.Radiat.Isot. 70, 2608 (2012)

S.Pomme, M.Marouli, G.Suliman, H.Dikmen, R.Van Ammel, V.Jobbagy, A.Dirican, H.Stroh, J.Paepen, F.Bruchertseifer, C.Apostolidis, A.Morgenstern

Measurement of the ²²⁵Ac half-life

RADIOACTIVITY ²²⁵Ac(α); measured decay products, Eα, Iα, Eγ, Iγ, Eβ, Iβ; deduced T_1/2 and its uncertainties. Comparison with available data.

doi: 10.1016/j.apradiso.2012.07.014
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Data from this article have been entered in the XUNDL database. For more information, click here.

2012SU11      Appl.Radiat.Isot. 70, 1907 (2012)

G.Suliman, S.Pomme, M.Marouli, R.Van Ammel, V.Jobbagy, J.Paepen, H.Stroh, C.Apostolidis, K.Abbas, A.Morgenstern

Measurements of the half-life of ²¹⁴Po and ²¹⁸Rn using digital electronics

RADIOACTIVITY ²¹⁴Po, ²¹⁸Rn(α); measured decay products, Eα, Iα; deduced T_1/2 and their uncertainties. Comparison with available data.

doi: 10.1016/j.apradiso.2012.02.095
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Data from this article have been entered in the XUNDL database. For more information, click here.

2011PO07      Appl.Radiat.Isot. 69, 1267 (2011)

S.Pomme, J.Paepen, T.Altzitzoglou, R.Van Ammel, E.Yeltepe

Measurement of the ¹⁷⁷Lu half-life

RADIOACTIVITY ¹⁷⁷Lu(β^-) [from ¹⁷⁶Lu(n, γ), E=thermal]; measured decay products; deduced T_1/2 and uncertainties. Comparison with evaluated data.

doi: 10.1016/j.apradiso.2011.04.021
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2011VA02      Appl.Radiat.Isot. 69, 785 (2011)

R.Van Ammel, S.Pomme, J.Paepen, G.Sibbens

Measurement of the ¹⁰⁹Cd half-life

RADIOACTIVITY ¹⁰⁹Cd(EC); measured ionization, Eγ, Iγ; deduced T_1/2 and uncertainties. Comparison with experimental data.

doi: 10.1016/j.apradiso.2011.01.020
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2010BE18      Appl.Radiat.Isot. 68, 2026 (2010)

M.-M.Be, B.Chauvenet, M.-N.Amiot, C.Bobin, M.-C.Lepy, T.Branger, I.Laniece, A.Luca, M.Sahagia, A.C.Watjen, K.Kossert, O.Ott, O.Nahle, P.Dryak, J.Sochorova, P.Kovar, P.Auerbach, T.Altzitzoglou, S.Pomme, G.Sibbens, R.Van Ammel, J.Paepen, A.Iwahara, J.U.Delgado, R.Poledna

International exercise on ¹²⁴Sb photon emission intensities determination

RADIOACTIVITY ¹²⁴Sb(β^-); measured Eγ, Iγ; deduced γ-ray and x-rays intensities per decay, branching ratio.

doi: 10.1016/j.apradiso.2010.01.038
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2010PA07      Appl.Radiat.Isot. 68, 1555 (2010)

J.Paepen, T.Altzitzoglou, R.Van Ammel, G.Sibbens, S.Pomme

Half-life measurement of ¹²⁴Sb

RADIOACTIVITY ¹²⁴Sb(β^-) [from Sb(n, X)]; measured Eγ, Iγ, Ee, Ie; deduced precise value for T_1/2.

COMPILATION ¹²⁴Sb; compiled experimental values for T_1/2.

doi: 10.1016/j.apradiso.2009.11.050
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2010VA13      Appl.Radiat.Isot. 68, 2387 (2010)

R.Van Ammel, J.Paepen, S.Pomme, G.Sibbens

Measurement of the ⁵⁴Mn half-life

RADIOACTIVITY ⁵⁴Mn(EC); measured decay products, Eγ, Iγ; deduced T_1/2. Comparison with other experimental and evaluated results.

doi: 10.1016/j.apradiso.2010.06.010
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