Performing the differential decay curve method on gamma-ray transitions with unresolved Doppler-shifted components

L. Barber*, D.M. Cullen, M.M. Giles, B.S. Nara Singh, M.J. Mallaburn, M. Beckers, A. Blazhev, T. Braunroth, A. Dewald, C. Fransen, A. Goldkuhle, J. Jolie, F. Mammes, C. Muller-Gatermann, D. Wolk, K.O. Zell

*Corresponding author for this work

Research output: Contribution to journalArticle

Abstract

A new method of extracting the gamma-ray intensities necessary to perform lifetime measurements using the differential decay curve method (DDCM) is presented in this work, the unresolved Doppler-shifted components method (UDCM). The UDCM allows for a DDCM analysis to be performed using a gamma-ray transition for which the fully Doppler-shifted and degraded components are unresolvable in energy and so are detected as a single peak. This technique was used to measure the known lifetime of the 2_1^+ yrast state in 50Mn with a depopulating transition that does not have resolvable fully Doppler-shifted and degraded components. The lifetime measured through applying the UDCM was consistent with the standard DDCM measurement of the 2_1^+ state. Use of the UDCM allows for DDCM lifetime measurements to be made using transitions of smaller gamma-ray energies, smaller recoil velocities and, in some cases, with a smaller uncertainty. In contrast to a standard DDCM analysis, a UDCM analysis is also independent of the widths of the fully Doppler-shifted and degraded components and as a result they do not need to be determined.
Original languageEnglish
Article number162965
Number of pages6
JournalNuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
Volume950
Early online date14 Oct 2019
DOIs
Publication statusPublished - 11 Jan 2020
Externally publishedYes

Fingerprint

Gamma rays
gamma rays
decay
curves
life (durability)
yrast state
energy
Uncertainty

Keywords

  • RDDS
  • DDCM
  • UDCM
  • Plunger
  • Nuclear-state lifetimes
  • Unresolved Doppler-shifted components

Cite this

Barber, L. ; Cullen, D.M. ; Giles, M.M. ; Nara Singh, B.S. ; Mallaburn, M.J. ; Beckers, M. ; Blazhev, A. ; Braunroth, T. ; Dewald, A. ; Fransen, C. ; Goldkuhle, A. ; Jolie, J. ; Mammes, F. ; Muller-Gatermann, C. ; Wolk, D. ; Zell, K.O. / Performing the differential decay curve method on gamma-ray transitions with unresolved Doppler-shifted components. In: Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. 2020 ; Vol. 950.
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abstract = "A new method of extracting the gamma-ray intensities necessary to perform lifetime measurements using the differential decay curve method (DDCM) is presented in this work, the unresolved Doppler-shifted components method (UDCM). The UDCM allows for a DDCM analysis to be performed using a gamma-ray transition for which the fully Doppler-shifted and degraded components are unresolvable in energy and so are detected as a single peak. This technique was used to measure the known lifetime of the 2_1^+ yrast state in 50Mn with a depopulating transition that does not have resolvable fully Doppler-shifted and degraded components. The lifetime measured through applying the UDCM was consistent with the standard DDCM measurement of the 2_1^+ state. Use of the UDCM allows for DDCM lifetime measurements to be made using transitions of smaller gamma-ray energies, smaller recoil velocities and, in some cases, with a smaller uncertainty. In contrast to a standard DDCM analysis, a UDCM analysis is also independent of the widths of the fully Doppler-shifted and degraded components and as a result they do not need to be determined.",
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author = "L. Barber and D.M. Cullen and M.M. Giles and {Nara Singh}, B.S. and M.J. Mallaburn and M. Beckers and A. Blazhev and T. Braunroth and A. Dewald and C. Fransen and A. Goldkuhle and J. Jolie and F. Mammes and C. Muller-Gatermann and D. Wolk and K.O. Zell",
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Barber, L, Cullen, DM, Giles, MM, Nara Singh, BS, Mallaburn, MJ, Beckers, M, Blazhev, A, Braunroth, T, Dewald, A, Fransen, C, Goldkuhle, A, Jolie, J, Mammes, F, Muller-Gatermann, C, Wolk, D & Zell, KO 2020, 'Performing the differential decay curve method on gamma-ray transitions with unresolved Doppler-shifted components', Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, vol. 950, 162965. https://doi.org/10.1016/j.nima.2019.162965

Performing the differential decay curve method on gamma-ray transitions with unresolved Doppler-shifted components. / Barber, L.; Cullen, D.M.; Giles, M.M.; Nara Singh, B.S.; Mallaburn, M.J.; Beckers, M.; Blazhev, A.; Braunroth, T.; Dewald, A.; Fransen, C.; Goldkuhle, A.; Jolie, J.; Mammes, F.; Muller-Gatermann, C.; Wolk, D.; Zell, K.O.

In: Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 950, 162965, 11.01.2020.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Performing the differential decay curve method on gamma-ray transitions with unresolved Doppler-shifted components

AU - Barber, L.

AU - Cullen, D.M.

AU - Giles, M.M.

AU - Nara Singh, B.S.

AU - Mallaburn, M.J.

AU - Beckers, M.

AU - Blazhev, A.

AU - Braunroth, T.

AU - Dewald, A.

AU - Fransen, C.

AU - Goldkuhle, A.

AU - Jolie, J.

AU - Mammes, F.

AU - Muller-Gatermann, C.

AU - Wolk, D.

AU - Zell, K.O.

PY - 2020/1/11

Y1 - 2020/1/11

N2 - A new method of extracting the gamma-ray intensities necessary to perform lifetime measurements using the differential decay curve method (DDCM) is presented in this work, the unresolved Doppler-shifted components method (UDCM). The UDCM allows for a DDCM analysis to be performed using a gamma-ray transition for which the fully Doppler-shifted and degraded components are unresolvable in energy and so are detected as a single peak. This technique was used to measure the known lifetime of the 2_1^+ yrast state in 50Mn with a depopulating transition that does not have resolvable fully Doppler-shifted and degraded components. The lifetime measured through applying the UDCM was consistent with the standard DDCM measurement of the 2_1^+ state. Use of the UDCM allows for DDCM lifetime measurements to be made using transitions of smaller gamma-ray energies, smaller recoil velocities and, in some cases, with a smaller uncertainty. In contrast to a standard DDCM analysis, a UDCM analysis is also independent of the widths of the fully Doppler-shifted and degraded components and as a result they do not need to be determined.

AB - A new method of extracting the gamma-ray intensities necessary to perform lifetime measurements using the differential decay curve method (DDCM) is presented in this work, the unresolved Doppler-shifted components method (UDCM). The UDCM allows for a DDCM analysis to be performed using a gamma-ray transition for which the fully Doppler-shifted and degraded components are unresolvable in energy and so are detected as a single peak. This technique was used to measure the known lifetime of the 2_1^+ yrast state in 50Mn with a depopulating transition that does not have resolvable fully Doppler-shifted and degraded components. The lifetime measured through applying the UDCM was consistent with the standard DDCM measurement of the 2_1^+ state. Use of the UDCM allows for DDCM lifetime measurements to be made using transitions of smaller gamma-ray energies, smaller recoil velocities and, in some cases, with a smaller uncertainty. In contrast to a standard DDCM analysis, a UDCM analysis is also independent of the widths of the fully Doppler-shifted and degraded components and as a result they do not need to be determined.

KW - RDDS

KW - DDCM

KW - UDCM

KW - Plunger

KW - Nuclear-state lifetimes

KW - Unresolved Doppler-shifted components

U2 - 10.1016/j.nima.2019.162965

DO - 10.1016/j.nima.2019.162965

M3 - Article

VL - 950

JO - Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment

JF - Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment

SN - 0168-9002

M1 - 162965

ER -