Pile-up corrections for high-precision superallowed beta decay half-life measurements via gamma-ray photopeak counting

G. F. Grinyer; C. E. Svensson; C. Andreoiu; A. N. Andreyev; R. A. E. Austin; G. C. Ball; D. Bandyopadhyay; R. S. Chakrawarthy; P. Finlay; P. E. Garrett; G. Hackman; B. Hyland; W. D. Kulp; K. G. Leach; J. R. Leslie; A. C. Morton; C. J. Pearson; A. A. Phillips; F. Sarazin; M. A. Schumaker; M. B. Smith; J. J. Valiente-Dobon; J. C. Waddington; S. J. Williams; J. Wong; J. L. Wood; E. F. Zganjar

doi:10.1016/j.nima.2007.05.323

Pile-up corrections for high-precision superallowed beta decay half-life measurements via gamma-ray photopeak counting

G. F. Grinyer^*, C. E. Svensson, C. Andreoiu, A. N. Andreyev, R. A. E. Austin, G. C. Ball, D. Bandyopadhyay, R. S. Chakrawarthy, P. Finlay, P. E. Garrett, G. Hackman, B. Hyland, W. D. Kulp, K. G. Leach, J. R. Leslie, A. C. Morton, C. J. Pearson, A. A. Phillips, F. Sarazin, M. A. SchumakerM. B. Smith, J. J. Valiente-Dobon, J. C. Waddington, S. J. Williams, J. Wong, J. L. Wood, E. F. Zganjar

^*Corresponding author for this work

Physics

Research output: Contribution to journal › Article › peer-review

Abstract

A general technique that corrects gamma-ray gated beta decay-curve data for detector pulse pile-up is presented. The method includes corrections for non-zero time-resolution and energy-threshold effects in addition to a special treatment of saturating events due to cosmic rays. This technique is verified through a Monte Carlo simulation and experimental data using radioactive beams of Na-26 implanted at the center of the 8 pi gamma-ray spectrometer at the ISAC facility at TRIUMF in Vancouver, Canada. The P-decay half-life of Na-26 obtained from counting 1809-keV gamma-ray photopeaks emitted by the daughter Mg-26 was determined to be T-1/2 = 1.07167 +/- 0.00055 s following a 27 sigma correction for detector pulse pile-up. This result is in excellent agreement with the result of a previous measurement that employed direct beta counting and demonstrates the feasibility of high-precision beta-decay half-life measurements through the use of high-purity germanium gamma-ray detectors. The technique presented here, while motivated by superallowed-Fermi P decay studies, is general and can be used for all half-life determinations (e.g. alpha-, beta-, X-ray, fission) in which a gamma-ray photopeak is used to select the decays of a particular isotope. (c) 2007 Elsevier B.V. All rights reserved.

Original language	English
Pages (from-to)	1005-1033
Number of pages	29
Journal	Nuclear instruments & methods in physics research section a-Accelerators spectrometers detectors and associated equipment
Volume	579
Issue number	3
DOIs	https://doi.org/10.1016/j.nima.2007.05.323
Publication status	Published - 11 Sep 2007

Keywords

RADIOACTIVE BEAM
high-precision half-life measurements
detector pulse pile-up
O-14
LIVES
gamma-ray counting

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10.1016/j.nima.2007.05.323

Cite this

Grinyer, G. F., Svensson, C. E., Andreoiu, C., Andreyev, A. N., Austin, R. A. E., Ball, G. C., Bandyopadhyay, D., Chakrawarthy, R. S., Finlay, P., Garrett, P. E., Hackman, G., Hyland, B., Kulp, W. D., Leach, K. G., Leslie, J. R., Morton, A. C., Pearson, C. J., Phillips, A. A., Sarazin, F., ... Zganjar, E. F. (2007). Pile-up corrections for high-precision superallowed beta decay half-life measurements via gamma-ray photopeak counting. Nuclear instruments & methods in physics research section a-Accelerators spectrometers detectors and associated equipment, 579(3), 1005-1033. https://doi.org/10.1016/j.nima.2007.05.323

@article{f66f2bb216c441ea96f7c471a8a80346,

title = "Pile-up corrections for high-precision superallowed beta decay half-life measurements via gamma-ray photopeak counting",

abstract = "A general technique that corrects gamma-ray gated beta decay-curve data for detector pulse pile-up is presented. The method includes corrections for non-zero time-resolution and energy-threshold effects in addition to a special treatment of saturating events due to cosmic rays. This technique is verified through a Monte Carlo simulation and experimental data using radioactive beams of Na-26 implanted at the center of the 8 pi gamma-ray spectrometer at the ISAC facility at TRIUMF in Vancouver, Canada. The P-decay half-life of Na-26 obtained from counting 1809-keV gamma-ray photopeaks emitted by the daughter Mg-26 was determined to be T-1/2 = 1.07167 +/- 0.00055 s following a 27 sigma correction for detector pulse pile-up. This result is in excellent agreement with the result of a previous measurement that employed direct beta counting and demonstrates the feasibility of high-precision beta-decay half-life measurements through the use of high-purity germanium gamma-ray detectors. The technique presented here, while motivated by superallowed-Fermi P decay studies, is general and can be used for all half-life determinations (e.g. alpha-, beta-, X-ray, fission) in which a gamma-ray photopeak is used to select the decays of a particular isotope. (c) 2007 Elsevier B.V. All rights reserved.",

keywords = "RADIOACTIVE BEAM, high-precision half-life measurements, detector pulse pile-up, O-14, LIVES, gamma-ray counting",

author = "Grinyer, {G. F.} and Svensson, {C. E.} and C. Andreoiu and Andreyev, {A. N.} and Austin, {R. A. E.} and Ball, {G. C.} and D. Bandyopadhyay and Chakrawarthy, {R. S.} and P. Finlay and Garrett, {P. E.} and G. Hackman and B. Hyland and Kulp, {W. D.} and Leach, {K. G.} and Leslie, {J. R.} and Morton, {A. C.} and Pearson, {C. J.} and Phillips, {A. A.} and F. Sarazin and Schumaker, {M. A.} and Smith, {M. B.} and Valiente-Dobon, {J. J.} and Waddington, {J. C.} and Williams, {S. J.} and J. Wong and Wood, {J. L.} and Zganjar, {E. F.}",

year = "2007",

month = sep,

day = "11",

doi = "10.1016/j.nima.2007.05.323",

language = "English",

volume = "579",

pages = "1005--1033",

journal = "Nuclear instruments & methods in physics research section a-Accelerators spectrometers detectors and associated equipment",

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Grinyer, GF, Svensson, CE, Andreoiu, C, Andreyev, AN, Austin, RAE, Ball, GC, Bandyopadhyay, D, Chakrawarthy, RS, Finlay, P, Garrett, PE, Hackman, G, Hyland, B, Kulp, WD, Leach, KG, Leslie, JR, Morton, AC, Pearson, CJ, Phillips, AA, Sarazin, F, Schumaker, MA, Smith, MB, Valiente-Dobon, JJ, Waddington, JC, Williams, SJ, Wong, J, Wood, JL & Zganjar, EF 2007, 'Pile-up corrections for high-precision superallowed beta decay half-life measurements via gamma-ray photopeak counting', Nuclear instruments & methods in physics research section a-Accelerators spectrometers detectors and associated equipment, vol. 579, no. 3, pp. 1005-1033. https://doi.org/10.1016/j.nima.2007.05.323

Pile-up corrections for high-precision superallowed beta decay half-life measurements via gamma-ray photopeak counting. / Grinyer, G. F.; Svensson, C. E.; Andreoiu, C. et al.

In: Nuclear instruments & methods in physics research section a-Accelerators spectrometers detectors and associated equipment, Vol. 579, No. 3, 11.09.2007, p. 1005-1033.

Research output: Contribution to journal › Article › peer-review

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T1 - Pile-up corrections for high-precision superallowed beta decay half-life measurements via gamma-ray photopeak counting

AU - Grinyer, G. F.

AU - Svensson, C. E.

AU - Andreoiu, C.

AU - Andreyev, A. N.

AU - Austin, R. A. E.

AU - Ball, G. C.

AU - Bandyopadhyay, D.

AU - Chakrawarthy, R. S.

AU - Finlay, P.

AU - Garrett, P. E.

AU - Hackman, G.

AU - Hyland, B.

AU - Kulp, W. D.

AU - Leach, K. G.

AU - Leslie, J. R.

AU - Morton, A. C.

AU - Pearson, C. J.

AU - Phillips, A. A.

AU - Sarazin, F.

AU - Schumaker, M. A.

AU - Smith, M. B.

AU - Valiente-Dobon, J. J.

AU - Waddington, J. C.

AU - Williams, S. J.

AU - Wong, J.

AU - Wood, J. L.

AU - Zganjar, E. F.

PY - 2007/9/11

Y1 - 2007/9/11

N2 - A general technique that corrects gamma-ray gated beta decay-curve data for detector pulse pile-up is presented. The method includes corrections for non-zero time-resolution and energy-threshold effects in addition to a special treatment of saturating events due to cosmic rays. This technique is verified through a Monte Carlo simulation and experimental data using radioactive beams of Na-26 implanted at the center of the 8 pi gamma-ray spectrometer at the ISAC facility at TRIUMF in Vancouver, Canada. The P-decay half-life of Na-26 obtained from counting 1809-keV gamma-ray photopeaks emitted by the daughter Mg-26 was determined to be T-1/2 = 1.07167 +/- 0.00055 s following a 27 sigma correction for detector pulse pile-up. This result is in excellent agreement with the result of a previous measurement that employed direct beta counting and demonstrates the feasibility of high-precision beta-decay half-life measurements through the use of high-purity germanium gamma-ray detectors. The technique presented here, while motivated by superallowed-Fermi P decay studies, is general and can be used for all half-life determinations (e.g. alpha-, beta-, X-ray, fission) in which a gamma-ray photopeak is used to select the decays of a particular isotope. (c) 2007 Elsevier B.V. All rights reserved.

AB - A general technique that corrects gamma-ray gated beta decay-curve data for detector pulse pile-up is presented. The method includes corrections for non-zero time-resolution and energy-threshold effects in addition to a special treatment of saturating events due to cosmic rays. This technique is verified through a Monte Carlo simulation and experimental data using radioactive beams of Na-26 implanted at the center of the 8 pi gamma-ray spectrometer at the ISAC facility at TRIUMF in Vancouver, Canada. The P-decay half-life of Na-26 obtained from counting 1809-keV gamma-ray photopeaks emitted by the daughter Mg-26 was determined to be T-1/2 = 1.07167 +/- 0.00055 s following a 27 sigma correction for detector pulse pile-up. This result is in excellent agreement with the result of a previous measurement that employed direct beta counting and demonstrates the feasibility of high-precision beta-decay half-life measurements through the use of high-purity germanium gamma-ray detectors. The technique presented here, while motivated by superallowed-Fermi P decay studies, is general and can be used for all half-life determinations (e.g. alpha-, beta-, X-ray, fission) in which a gamma-ray photopeak is used to select the decays of a particular isotope. (c) 2007 Elsevier B.V. All rights reserved.

KW - RADIOACTIVE BEAM

KW - high-precision half-life measurements

KW - detector pulse pile-up

KW - O-14

KW - LIVES

KW - gamma-ray counting

U2 - 10.1016/j.nima.2007.05.323

DO - 10.1016/j.nima.2007.05.323

M3 - Article

VL - 579

SP - 1005

EP - 1033

JO - Nuclear instruments & methods in physics research section a-Accelerators spectrometers detectors and associated equipment

JF - Nuclear instruments & methods in physics research section a-Accelerators spectrometers detectors and associated equipment

SN - 0168-9002

IS - 3

ER -

Grinyer GF, Svensson CE, Andreoiu C, Andreyev AN, Austin RAE, Ball GC et al. Pile-up corrections for high-precision superallowed beta decay half-life measurements via gamma-ray photopeak counting. Nuclear instruments & methods in physics research section a-Accelerators spectrometers detectors and associated equipment. 2007 Sep 11;579(3):1005-1033. doi: 10.1016/j.nima.2007.05.323