Search Results - "Pommé, S."

Solar influence on radon decay rates: irradiance or neutrinos? by Pommé, S.

“…Radon decay rate data from 2007–2011, measured in a closed canister with one gamma counter and two alpha detectors, were made available for analysis by the…”
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On the recent claim of correlation between radioactive decay rates and space weather by Pommé, S., Pelczar, K.

“…In recent literature, several authors have challenged the validity of the exponential-decay law, based on observed variations in radioactive decay rate…”
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Role of ambient humidity underestimated in research on correlation between radioactive decay rates and space weather by Pommé, S., Pelczar, K.

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Air humidity and annual oscillations in 90Sr/90Y and 60Co decay rate measurements by Pommé, S., Pelczar, K., Kajan, I.

“…Parkhomov published decay rate measurements of 90 Sr/ 90 Y and 60 Co beta decay sources with Geiger–Müller counters which showed annual cyclic deviations with…”
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On the interpretation of annual oscillations in 32Si and 36Cl decay rate measurements by Pommé, S., Pelczar, K., Kossert, K., Kajan, I.

“…The 32 Si decay rate measurement data of Alburger et al. obtained in 1982–1986 at Brookhaven National Laboratory have been presented repeatedly as evidence for…”
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Measurement of the 145Sm half-life by Kajan, I., Pommé, S., Pelczar, K., Heinitz, S.

“…The half-life of 145Sm has been measured by means of the reference source method with a HPGe detector. The long-lived radionuclide 44Ti was mixed into the…”
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Measurement of the 171Tm half-life by Kajan, I., S. Pommé, Heinitz, S.

“…The half-life of 171 Tm was measured by gamma-ray spectrometry, using the reference source method. The measured point-like source was prepared by homogenous…”
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Conversion electron spectroscopy of the 59.54 keV transition in 241Am alpha decay by Pommé, S., Paepen, J., Marouli, M.

“…A windowless Peltier-cooled silicon drift detector (SDD) was used to measure internal conversion electron (ICE) spectra of thin 241Am sources. The ICE peaks…”
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Standardisation of 241Am activity for a key comparison by Pommé, S., Altzitzoglou, T., Van Ammel, R., Sibbens, G.

“…The JRC applied six measurement techniques to standardise the activity of an 241 Am solution in the frame of the 2003 key comparison CCRI(II)-K2.Am-241. The…”
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On the Claim of Modulations in 36Cl Beta Decay and Their Association with Solar Rotation by Pommé, S., Kossert, K., Nähle, O.

“…Recently, claims were made by Sturrock et al. ( Astropart. Phys. 42 , 62, 2013 ), Sturrock, Fischbach, and Scargle ( Solar Phys. 291 , 3467, 2016 ; arXiv ,…”
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Linearity check of an ionisation chamber through 99 mTc half-life measurements by Pommé, S., Paepen, J., Van Ammel, R.

“…The half-life of 99 mTc was measured at the JRC using the ionisation chamber 'IC1' (type Centronic IG12). The result, T1/2(99 mTc) = 6.00660 (18) h, is in good…”
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Comparing significance criteria for cyclic modulations in time series by Pommé, S.

“…General solutions are derived for least-squares fits of amplitude, phase shift and baseline shift of sinusoidal modulations to normally distributed time…”
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Evidence against solar influence on nuclear decay constants by Pommé, S., Stroh, H., Paepen, J., Van Ammel, R., Marouli, M., 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., Unterweger, M., Fitzgerald, R., Bergeron, D.E., Pibida, L., Verheyen, L., Bruggeman, M., Vodenik, B., Korun, M., Chisté, V., Amiot, M.-N.

“…The hypothesis that proximity to the Sun causes variation of decay constants at permille level has been tested and disproved. Repeated activity measurements of…”
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Alpha-particle emission probabilities of 231Pa derived from first semiconductor spectrometric measurements by García-Toraño, E., Crespo, T., Marouli, M., Jobbágy, V., Pommé, S., Ivanov, P.

“…The nuclide 231Pa is a member of the 235U decay chain. It is a complex alpha emitter with 25 identified alpha emissions. Formerly published alpha-particle…”
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Deconvolution of 238,239,240 Pu conversion electron spectra measured with a silicon drift detector by Pommé, S, Marouli, M, Paepen, J, Marković, N, Pöllänen, R

“…Internal conversion electron (ICE) spectra of thin Pu sources, measured with a windowless Peltier-cooled silicon drift detector (SDD), were deconvoluted and…”
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Deconvolution of 238,239,240Pu conversion electron spectra measured with a silicon drift detector by Pommé, S., Marouli, M., Paepen, J., Marković, N., Pöllänen, R.

“…Internal conversion electron (ICE) spectra of thin 238,239,240Pu sources, measured with a windowless Peltier-cooled silicon drift detector (SDD), were…”
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Unbiased equations for 95Zr–95Nb chronometry by Pommé, S., Collins, S.M.

“…Formulae are presented for 95Zr–95Nb chronometry of a nuclear event. In particular, they allow for a bias-free calculation of the moment of a nuclear…”
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Neutrino-Induced Decay: A Critical Review of the Arguments by Pommé, S., Pelczar, K.

“…There has been scientific debate about speculations that ‘neutrino-induced’ radioactive decay causes apparent violations of the exponential-decay law. Sturrock…”
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Fundamental uncertainty equations for nuclear dating applied to the 140Ba-140La and 227Th-223Ra chronometers by Pommé, S., Collins, S.M., Harms, A., Jerome, S.M.

“…Basic equations for age dating through activity ratio measurements are presented and applied to nuclear chronometers based on parent-daughter decay…”
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Fundamental uncertainty equations for nuclear dating applied to the 140 Ba- 140 La and 227 Th- 223 Ra chronometers by Pommé, S, Collins, S M, Harms, A, Jerome, S M

“…Basic equations for age dating through activity ratio measurements are presented and applied to nuclear chronometers based on parent-daughter decay…”
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