A new differentially pumped plunger device to measure excited-state lifetimes in proton emitting nuclei

M.J. Taylor, D.M. Cullen, A.J. Smith, A. McFarlane, V. Twist, G.A. Alharshan, M.G. Procter, T. Braunroth, A. Dewald, E. Ellinger, C. Fransen, P.A. Butler, M. Scheck, D.T. Joss, B. Saygi, C.G. McPeake, T. Grahn, P.T. Greenlees, U. Jakobsson, P. Jones & 15 others R. Julin, S. Juutinen, S. Ketelhut, M. Leino, P. Nieminen, J. Pakarinen, P. Peura, P. Rahkila, P. Ruotsalainen, M. Sandzelius, J. Saren, C. Scholey, J. Sorri, S. Stolze, J. Uusitalo

Research output: Contribution to journalArticle

Abstract

A new plunger device has been designed and built to measure the lifetimes of unbound states in exotic nuclei beyond the proton drip-line. The device has been designed to work in both vacuum and dilute-gas environments made possible through the introduction of a low-voltage stepping motor. DPUNS will be used in conjunction with the gas-filled separator RITU and the vacuum separator MARA at the accelerator laboratory of the University of Jyvaskyla, Finland, to measure the lifetimes of excited states with low population cross-sections. This is achieved by eliminating the need for a carbon foil to isolate the helium gas of RITU from the beam line thus reducing the background from beam-foil reactions. The inclusion of a high-sampling rate data acquisition card increases further the sensitivity of the device. The plunger will be used to address many key facets of nuclear structure physics with particular emphasis on the effect of deformation on proton emission rates.
Original languageEnglish
Pages (from-to)143-148
Number of pages6
JournalNuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
Volume707
DOIs
Publication statusPublished - 11 Apr 2013
Externally publishedYes

Keywords

  • Plunger
  • Excited-state lifetimes
  • Nd-134
  • Proton-emitting nuclei
  • RDDS
  • DDCM
  • Gas mode
  • Vacuum mode

Cite this

Taylor, M.J. ; Cullen, D.M. ; Smith, A.J. ; McFarlane, A. ; Twist, V. ; Alharshan, G.A. ; Procter, M.G. ; Braunroth, T. ; Dewald, A. ; Ellinger, E. ; Fransen, C. ; Butler, P.A. ; Scheck, M. ; Joss, D.T. ; Saygi, B. ; McPeake, C.G. ; Grahn, T. ; Greenlees, P.T. ; Jakobsson, U. ; Jones, P. ; Julin, R. ; Juutinen, S. ; Ketelhut, S. ; Leino, M. ; Nieminen, P. ; Pakarinen, J. ; Peura, P. ; Rahkila, P. ; Ruotsalainen, P. ; Sandzelius, M. ; Saren, J. ; Scholey, C. ; Sorri, J. ; Stolze, S. ; Uusitalo, J. / A new differentially pumped plunger device to measure excited-state lifetimes in proton emitting nuclei. In: Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. 2013 ; Vol. 707. pp. 143-148.
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abstract = "A new plunger device has been designed and built to measure the lifetimes of unbound states in exotic nuclei beyond the proton drip-line. The device has been designed to work in both vacuum and dilute-gas environments made possible through the introduction of a low-voltage stepping motor. DPUNS will be used in conjunction with the gas-filled separator RITU and the vacuum separator MARA at the accelerator laboratory of the University of Jyvaskyla, Finland, to measure the lifetimes of excited states with low population cross-sections. This is achieved by eliminating the need for a carbon foil to isolate the helium gas of RITU from the beam line thus reducing the background from beam-foil reactions. The inclusion of a high-sampling rate data acquisition card increases further the sensitivity of the device. The plunger will be used to address many key facets of nuclear structure physics with particular emphasis on the effect of deformation on proton emission rates.",
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author = "M.J. Taylor and D.M. Cullen and A.J. Smith and A. McFarlane and V. Twist and G.A. Alharshan and M.G. Procter and T. Braunroth and A. Dewald and E. Ellinger and C. Fransen and P.A. Butler and M. Scheck and D.T. Joss and B. Saygi and C.G. McPeake and T. Grahn and P.T. Greenlees and U. Jakobsson and P. Jones and R. Julin and S. Juutinen and S. Ketelhut and M. Leino and P. Nieminen and J. Pakarinen and P. Peura and P. Rahkila and P. Ruotsalainen and M. Sandzelius and J. Saren and C. Scholey and J. Sorri and S. Stolze and J. Uusitalo",
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Taylor, MJ, Cullen, DM, Smith, AJ, McFarlane, A, Twist, V, Alharshan, GA, Procter, MG, Braunroth, T, Dewald, A, Ellinger, E, Fransen, C, Butler, PA, Scheck, M, Joss, DT, Saygi, B, McPeake, CG, Grahn, T, Greenlees, PT, Jakobsson, U, Jones, P, Julin, R, Juutinen, S, Ketelhut, S, Leino, M, Nieminen, P, Pakarinen, J, Peura, P, Rahkila, P, Ruotsalainen, P, Sandzelius, M, Saren, J, Scholey, C, Sorri, J, Stolze, S & Uusitalo, J 2013, 'A new differentially pumped plunger device to measure excited-state lifetimes in proton emitting nuclei' Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, vol. 707, pp. 143-148. https://doi.org/10.1016/j.nima.2012.12.120

A new differentially pumped plunger device to measure excited-state lifetimes in proton emitting nuclei. / Taylor, M.J.; Cullen, D.M.; Smith, A.J.; McFarlane, A.; Twist, V.; Alharshan, G.A.; Procter, M.G.; Braunroth, T.; Dewald, A.; Ellinger, E.; Fransen, C.; Butler, P.A.; Scheck, M.; Joss, D.T.; Saygi, B.; McPeake, C.G.; Grahn, T.; Greenlees, P.T.; Jakobsson, U.; Jones, P.; Julin, R.; Juutinen, S.; Ketelhut, S.; Leino, M.; Nieminen, P.; Pakarinen, J.; Peura, P.; Rahkila, P.; Ruotsalainen, P.; Sandzelius, M.; Saren, J.; Scholey, C.; Sorri, J.; Stolze, S.; Uusitalo, J.

In: Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 707, 11.04.2013, p. 143-148.

Research output: Contribution to journalArticle

TY - JOUR

T1 - A new differentially pumped plunger device to measure excited-state lifetimes in proton emitting nuclei

AU - Taylor, M.J.

AU - Cullen, D.M.

AU - Smith, A.J.

AU - McFarlane, A.

AU - Twist, V.

AU - Alharshan, G.A.

AU - Procter, M.G.

AU - Braunroth, T.

AU - Dewald, A.

AU - Ellinger, E.

AU - Fransen, C.

AU - Butler, P.A.

AU - Scheck, M.

AU - Joss, D.T.

AU - Saygi, B.

AU - McPeake, C.G.

AU - Grahn, T.

AU - Greenlees, P.T.

AU - Jakobsson, U.

AU - Jones, P.

AU - Julin, R.

AU - Juutinen, S.

AU - Ketelhut, S.

AU - Leino, M.

AU - Nieminen, P.

AU - Pakarinen, J.

AU - Peura, P.

AU - Rahkila, P.

AU - Ruotsalainen, P.

AU - Sandzelius, M.

AU - Saren, J.

AU - Scholey, C.

AU - Sorri, J.

AU - Stolze, S.

AU - Uusitalo, J.

PY - 2013/4/11

Y1 - 2013/4/11

N2 - A new plunger device has been designed and built to measure the lifetimes of unbound states in exotic nuclei beyond the proton drip-line. The device has been designed to work in both vacuum and dilute-gas environments made possible through the introduction of a low-voltage stepping motor. DPUNS will be used in conjunction with the gas-filled separator RITU and the vacuum separator MARA at the accelerator laboratory of the University of Jyvaskyla, Finland, to measure the lifetimes of excited states with low population cross-sections. This is achieved by eliminating the need for a carbon foil to isolate the helium gas of RITU from the beam line thus reducing the background from beam-foil reactions. The inclusion of a high-sampling rate data acquisition card increases further the sensitivity of the device. The plunger will be used to address many key facets of nuclear structure physics with particular emphasis on the effect of deformation on proton emission rates.

AB - A new plunger device has been designed and built to measure the lifetimes of unbound states in exotic nuclei beyond the proton drip-line. The device has been designed to work in both vacuum and dilute-gas environments made possible through the introduction of a low-voltage stepping motor. DPUNS will be used in conjunction with the gas-filled separator RITU and the vacuum separator MARA at the accelerator laboratory of the University of Jyvaskyla, Finland, to measure the lifetimes of excited states with low population cross-sections. This is achieved by eliminating the need for a carbon foil to isolate the helium gas of RITU from the beam line thus reducing the background from beam-foil reactions. The inclusion of a high-sampling rate data acquisition card increases further the sensitivity of the device. The plunger will be used to address many key facets of nuclear structure physics with particular emphasis on the effect of deformation on proton emission rates.

KW - Plunger

KW - Excited-state lifetimes

KW - Nd-134

KW - Proton-emitting nuclei

KW - RDDS

KW - DDCM

KW - Gas mode

KW - Vacuum mode

U2 - 10.1016/j.nima.2012.12.120

DO - 10.1016/j.nima.2012.12.120

M3 - Article

VL - 707

SP - 143

EP - 148

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

ER -