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

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On decay constants and orbital distance to the Sun—part III: beta plus and electron capture decay. / Pommé, Stefaan; Stroh, H; Paepen, J; Van Ammel, Raf; Marouli, H; Altzitzoglou, T; Hult, M; Kossert, K; Nähle, O; Schrader, H; Juget, F; Bailat, C; Nedjadi, Y ; Bochud, F ; Buchillier, T ; Michotte, C; Courte, S; van Rooy, M W; van Staden, M J; Lubbe, J ; Simpson, B R S ; Fazio, A; De Felice, P; Jackson, T W; Van Wyngaardt, W M ; Reinhard, M I ; Golya, J ; Bourke, S; Roy, T ; Galea, R; Keightley, J D ; Ferreira, K M ; Collins, S M; Ceccatelli, A; Verheyen, Leen; Bruggeman, Michel; Vodenik, Branko; Korun , M ; Chisté, V; Amiot, M N.

In: Metrologia, Vol. 54, 28.11.2016, p. 36-50.

Research output: Contribution to journalArticle

Harvard

Pommé, S, Stroh, H, Paepen, J, Van Ammel, R, Marouli, H, Altzitzoglou, T, Hult, M, Kossert, K, Nähle, O, Schrader, H, Juget, F, Bailat, C, Nedjadi, Y, Bochud, F, Buchillier, T, Michotte, C, Courte, S, van Rooy, MW, van Staden, MJ, Lubbe, J, Simpson, BRS, Fazio, A, De Felice, P, Jackson, TW, Van Wyngaardt, WM, Reinhard, MI, Golya, J, Bourke, S, Roy, T, Galea, R, Keightley, JD, Ferreira, KM, Collins, SM, Ceccatelli, A, Verheyen, L, Bruggeman, M, Vodenik, B, Korun , M, Chisté, V & Amiot, MN 2016, 'On decay constants and orbital distance to the Sun—part III: beta plus and electron capture decay', Metrologia, vol. 54, pp. 36-50. https://doi.org/10.1088/1681-7575/54/1/36

APA

Pommé, S., Stroh, H., Paepen, J., Van Ammel, R., Marouli, H., Altzitzoglou, T., ... Amiot, M. N. (2016). On decay constants and orbital distance to the Sun—part III: beta plus and electron capture decay. Metrologia, 54, 36-50. https://doi.org/10.1088/1681-7575/54/1/36

Vancouver

Pommé S, Stroh H, Paepen J, Van Ammel R, Marouli H, Altzitzoglou T et al. On decay constants and orbital distance to the Sun—part III: beta plus and electron capture decay. Metrologia. 2016 Nov 28;54:36-50. https://doi.org/10.1088/1681-7575/54/1/36

Author

Pommé, Stefaan ; Stroh, H ; Paepen, J ; Van Ammel, Raf ; Marouli, H ; Altzitzoglou, T ; Hult, M ; Kossert, K ; Nähle, O ; Schrader, H ; Juget, F ; Bailat, C ; Nedjadi, Y ; Bochud, F ; Buchillier, T ; Michotte, C ; Courte, S ; van Rooy, M W ; van Staden, M J ; Lubbe, J ; Simpson, B R S ; Fazio, A ; De Felice, P ; Jackson, T W ; Van Wyngaardt, W M ; Reinhard, M I ; Golya, J ; Bourke, S ; Roy, T ; Galea, R ; Keightley, J D ; Ferreira, K M ; Collins, S M ; Ceccatelli, A ; Verheyen, Leen ; Bruggeman, Michel ; Vodenik, Branko ; Korun , M ; Chisté, V ; Amiot, M N. / On decay constants and orbital distance to the Sun—part III: beta plus and electron capture decay. In: Metrologia. 2016 ; Vol. 54. pp. 36-50.

Bibtex - Download

@article{83841e34014e48d69a37608553a50695,
title = "On decay constants and orbital distance to the Sun—part III: beta plus and electron capture decay",
abstract = "The hypothesis that seasonal changes in proximity to the Sun cause variation of decay constants at permille level has been tested for radionuclides disintegrating through electron capture and beta plus decay. Activity measurements of 22Na, 54Mn, 55Fe, 57Co, 65Zn, 82+85Sr, 90Sr, 109Cd, 124Sb, 133Ba, 152Eu, and 207Bi sources were 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 were inspected for annual oscillations. Systematic deviations from a purely exponential decay curve differ 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 within 10−4–10−5 range precision. The most stable activity measurements of β+ and EC decaying sources set an upper limit of 0.006{\%} or less to the amplitude of annual oscillations in the decay rate. There are no apparent indications for systematic oscillations at a level of weeks or months.",
keywords = "half-life, decay constant, non-exponential decay, adioactivity, Sun, neutrino",
author = "Stefaan Pomm{\'e} and H Stroh and J Paepen and {Van Ammel}, Raf and H Marouli and T Altzitzoglou and M Hult and K Kossert and O N{\"a}hle and H Schrader and F Juget and C Bailat and Y Nedjadi and F Bochud and T Buchillier and C Michotte and S Courte and {van Rooy}, {M W} and {van Staden}, {M J} and J Lubbe and Simpson, {B R S} and A Fazio and {De Felice}, P and Jackson, {T W} and {Van Wyngaardt}, {W M} and Reinhard, {M I} and J Golya and S Bourke and T Roy and R Galea and Keightley, {J D} and Ferreira, {K M} and Collins, {S M} and A Ceccatelli and Leen Verheyen and Michel Bruggeman and Branko Vodenik and M Korun and V Chist{\'e} and Amiot, {M N}",
note = "Score=10",
year = "2016",
month = "11",
day = "28",
doi = "10.1088/1681-7575/54/1/36",
language = "English",
volume = "54",
pages = "36--50",
journal = "Metrologia",
issn = "0026-1394",
publisher = "IOP - IOP Publishing",

}

RIS - Download

TY - JOUR

T1 - On decay constants and orbital distance to the Sun—part III: beta plus and electron capture decay

AU - Pommé, Stefaan

AU - Stroh, H

AU - Paepen, J

AU - Van Ammel, Raf

AU - Marouli, H

AU - Altzitzoglou, T

AU - Hult, M

AU - Kossert, K

AU - Nähle, O

AU - Schrader, H

AU - Juget, F

AU - Bailat, C

AU - Nedjadi, Y

AU - Bochud, F

AU - Buchillier, T

AU - Michotte, C

AU - Courte, S

AU - van Rooy, M W

AU - van Staden, M J

AU - Lubbe, J

AU - Simpson, B R S

AU - Fazio, A

AU - De Felice, P

AU - Jackson, T W

AU - Van Wyngaardt, W M

AU - Reinhard, M I

AU - Golya, J

AU - Bourke, S

AU - Roy, T

AU - Galea, R

AU - Keightley, J D

AU - Ferreira, K M

AU - Collins, S M

AU - Ceccatelli, A

AU - Verheyen, Leen

AU - Bruggeman, Michel

AU - Vodenik, Branko

AU - Korun , M

AU - Chisté, V

AU - Amiot, M N

N1 - Score=10

PY - 2016/11/28

Y1 - 2016/11/28

N2 - The hypothesis that seasonal changes in proximity to the Sun cause variation of decay constants at permille level has been tested for radionuclides disintegrating through electron capture and beta plus decay. Activity measurements of 22Na, 54Mn, 55Fe, 57Co, 65Zn, 82+85Sr, 90Sr, 109Cd, 124Sb, 133Ba, 152Eu, and 207Bi sources were 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 were inspected for annual oscillations. Systematic deviations from a purely exponential decay curve differ 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 within 10−4–10−5 range precision. The most stable activity measurements of β+ and EC decaying sources set an upper limit of 0.006% or less to the amplitude of annual oscillations in the decay rate. There are no apparent indications for systematic oscillations at a level of weeks or months.

AB - The hypothesis that seasonal changes in proximity to the Sun cause variation of decay constants at permille level has been tested for radionuclides disintegrating through electron capture and beta plus decay. Activity measurements of 22Na, 54Mn, 55Fe, 57Co, 65Zn, 82+85Sr, 90Sr, 109Cd, 124Sb, 133Ba, 152Eu, and 207Bi sources were 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 were inspected for annual oscillations. Systematic deviations from a purely exponential decay curve differ 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 within 10−4–10−5 range precision. The most stable activity measurements of β+ and EC decaying sources set an upper limit of 0.006% or less to the amplitude of annual oscillations in the decay rate. There are no apparent indications for systematic oscillations at a level of weeks or months.

KW - half-life

KW - decay constant

KW - non-exponential decay

KW - adioactivity

KW - Sun

KW - neutrino

UR - http://ecm.sckcen.be/OTCS/llisapi.dll/open/26405828

U2 - 10.1088/1681-7575/54/1/36

DO - 10.1088/1681-7575/54/1/36

M3 - Article

VL - 54

SP - 36

EP - 50

JO - Metrologia

JF - Metrologia

SN - 0026-1394

ER -

ID: 3132099