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; 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

doi:10.1016/j.nima.2012.12.120

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. JonesR. 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 journal › Article › peer-review

26 Citations (Scopus)

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 language	English
Pages (from-to)	143-148
Number of pages	6
Journal	Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
Volume	707
DOIs	https://doi.org/10.1016/j.nima.2012.12.120
Publication status	Published - 11 Apr 2013
Externally published	Yes

Keywords

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

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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., ... 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, 707, 143-148. https://doi.org/10.1016/j.nima.2012.12.120

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

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.",

keywords = "Plunger, Excited-state lifetimes, Nd-134, Proton-emitting nuclei, RDDS, DDCM, Gas mode, Vacuum mode",

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",

year = "2013",

month = apr,

day = "11",

doi = "10.1016/j.nima.2012.12.120",

language = "English",

volume = "707",

pages = "143--148",

journal = "Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment",

issn = "0168-9002",

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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. et al.
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 journal › Article › peer-review

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

SN - 0168-9002

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

ER -

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

Abstract

Keywords

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