High energy-resolution zero-degree facility for light-ion scattering and reactions at iThemba LABS

R. Neveling, H. Fujita, F. D. Smit, T. Adachi, G. P.A. Berg, E. Z. Buthelezi, J. Carter, J. L. Conradie, M. Couder, R. W. Fearick, S. V. Förtsch, D. T. Fourie, Y. Fujita, J. Görres, K. Hatanaka, M. Jingo, A. M. Krumbholz, C. O. Kureba, J. P. Mira, S. H.T. Murray & 10 others P. Von Neumann-Cosel, S. Obrien, P. Papka, I. Poltoratska, A. Richter, E. Sideras-Haddad, J. A. Swartz, A. Tamii, I. T. Usman, J. J. Van Zyl

Research output: Contribution to journalArticle

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Abstract

The setup and experimental techniques for measurements of zero-degree inelastic scattering and reactions involving light ions with the K=600 magnetic spectrometer at iThemba LABS are described. Measurements were performed for inelastic proton scattering at an incident energy of 200 MeV for targets ranging from 27Al to 208Pb. An energy-resolution of 45 keV (FWHM) was achieved by utilizing the faint-beam dispersion-matching technique. A background subtraction procedure was applied and allowed for the extraction of excitation energy spectra with low background. Measurements of the (p,t) reaction at zero degrees for Ep=100 and 200 MeV benefited from the difference in magnetic rigidity between the reaction products and the beam particles, resulting in background-free spectra with an excitation energy-resolution of 32 and 48 keV (FWHM), respectively, and a scattering angle resolution of 0.55° (FWHM). The addition of Double Sided Silicon Strip Detectors (DSSSD) at backward scattering angles allowed for coincident measurements of particle-decay of states excited in the (p,t) reaction at Ep=200MeV.

Original languageEnglish
Pages (from-to)29-39
Number of pages11
JournalNuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
Volume654
Issue number1
DOIs
Publication statusPublished - Oct 21 2011

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light ions
ion scattering
light scattering
Full width at half maximum
Scattering
Excitation energy
Ions
inelastic scattering
magnetic rigidity
excitation
particle decay
Particle beams
Inelastic scattering
energy
particle beams
proton scattering
Reaction products
scattering
Excited states
subtraction

All Science Journal Classification (ASJC) codes

  • Nuclear and High Energy Physics
  • Instrumentation

Cite this

Neveling, R. ; Fujita, H. ; Smit, F. D. ; Adachi, T. ; Berg, G. P.A. ; Buthelezi, E. Z. ; Carter, J. ; Conradie, J. L. ; Couder, M. ; Fearick, R. W. ; Förtsch, S. V. ; Fourie, D. T. ; Fujita, Y. ; Görres, J. ; Hatanaka, K. ; Jingo, M. ; Krumbholz, A. M. ; Kureba, C. O. ; Mira, J. P. ; Murray, S. H.T. ; Von Neumann-Cosel, P. ; Obrien, S. ; Papka, P. ; Poltoratska, I. ; Richter, A. ; Sideras-Haddad, E. ; Swartz, J. A. ; Tamii, A. ; Usman, I. T. ; Van Zyl, J. J. / High energy-resolution zero-degree facility for light-ion scattering and reactions at iThemba LABS. In: Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. 2011 ; Vol. 654, No. 1. pp. 29-39.
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abstract = "The setup and experimental techniques for measurements of zero-degree inelastic scattering and reactions involving light ions with the K=600 magnetic spectrometer at iThemba LABS are described. Measurements were performed for inelastic proton scattering at an incident energy of 200 MeV for targets ranging from 27Al to 208Pb. An energy-resolution of 45 keV (FWHM) was achieved by utilizing the faint-beam dispersion-matching technique. A background subtraction procedure was applied and allowed for the extraction of excitation energy spectra with low background. Measurements of the (p,t) reaction at zero degrees for Ep=100 and 200 MeV benefited from the difference in magnetic rigidity between the reaction products and the beam particles, resulting in background-free spectra with an excitation energy-resolution of 32 and 48 keV (FWHM), respectively, and a scattering angle resolution of 0.55° (FWHM). The addition of Double Sided Silicon Strip Detectors (DSSSD) at backward scattering angles allowed for coincident measurements of particle-decay of states excited in the (p,t) reaction at Ep=200MeV.",
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Neveling, R, Fujita, H, Smit, FD, Adachi, T, Berg, GPA, Buthelezi, EZ, Carter, J, Conradie, JL, Couder, M, Fearick, RW, Förtsch, SV, Fourie, DT, Fujita, Y, Görres, J, Hatanaka, K, Jingo, M, Krumbholz, AM, Kureba, CO, Mira, JP, Murray, SHT, Von Neumann-Cosel, P, Obrien, S, Papka, P, Poltoratska, I, Richter, A, Sideras-Haddad, E, Swartz, JA, Tamii, A, Usman, IT & Van Zyl, JJ 2011, 'High energy-resolution zero-degree facility for light-ion scattering and reactions at iThemba LABS', Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, vol. 654, no. 1, pp. 29-39. https://doi.org/10.1016/j.nima.2011.06.077

High energy-resolution zero-degree facility for light-ion scattering and reactions at iThemba LABS. / Neveling, R.; Fujita, H.; Smit, F. D.; Adachi, T.; Berg, G. P.A.; Buthelezi, E. Z.; Carter, J.; Conradie, J. L.; Couder, M.; Fearick, R. W.; Förtsch, S. V.; Fourie, D. T.; Fujita, Y.; Görres, J.; Hatanaka, K.; Jingo, M.; Krumbholz, A. M.; Kureba, C. O.; Mira, J. P.; Murray, S. H.T.; Von Neumann-Cosel, P.; Obrien, S.; Papka, P.; Poltoratska, I.; Richter, A.; Sideras-Haddad, E.; Swartz, J. A.; Tamii, A.; Usman, I. T.; Van Zyl, J. J.

In: Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 654, No. 1, 21.10.2011, p. 29-39.

Research output: Contribution to journalArticle

TY - JOUR

T1 - High energy-resolution zero-degree facility for light-ion scattering and reactions at iThemba LABS

AU - Neveling, R.

AU - Fujita, H.

AU - Smit, F. D.

AU - Adachi, T.

AU - Berg, G. P.A.

AU - Buthelezi, E. Z.

AU - Carter, J.

AU - Conradie, J. L.

AU - Couder, M.

AU - Fearick, R. W.

AU - Förtsch, S. V.

AU - Fourie, D. T.

AU - Fujita, Y.

AU - Görres, J.

AU - Hatanaka, K.

AU - Jingo, M.

AU - Krumbholz, A. M.

AU - Kureba, C. O.

AU - Mira, J. P.

AU - Murray, S. H.T.

AU - Von Neumann-Cosel, P.

AU - Obrien, S.

AU - Papka, P.

AU - Poltoratska, I.

AU - Richter, A.

AU - Sideras-Haddad, E.

AU - Swartz, J. A.

AU - Tamii, A.

AU - Usman, I. T.

AU - Van Zyl, J. J.

PY - 2011/10/21

Y1 - 2011/10/21

N2 - The setup and experimental techniques for measurements of zero-degree inelastic scattering and reactions involving light ions with the K=600 magnetic spectrometer at iThemba LABS are described. Measurements were performed for inelastic proton scattering at an incident energy of 200 MeV for targets ranging from 27Al to 208Pb. An energy-resolution of 45 keV (FWHM) was achieved by utilizing the faint-beam dispersion-matching technique. A background subtraction procedure was applied and allowed for the extraction of excitation energy spectra with low background. Measurements of the (p,t) reaction at zero degrees for Ep=100 and 200 MeV benefited from the difference in magnetic rigidity between the reaction products and the beam particles, resulting in background-free spectra with an excitation energy-resolution of 32 and 48 keV (FWHM), respectively, and a scattering angle resolution of 0.55° (FWHM). The addition of Double Sided Silicon Strip Detectors (DSSSD) at backward scattering angles allowed for coincident measurements of particle-decay of states excited in the (p,t) reaction at Ep=200MeV.

AB - The setup and experimental techniques for measurements of zero-degree inelastic scattering and reactions involving light ions with the K=600 magnetic spectrometer at iThemba LABS are described. Measurements were performed for inelastic proton scattering at an incident energy of 200 MeV for targets ranging from 27Al to 208Pb. An energy-resolution of 45 keV (FWHM) was achieved by utilizing the faint-beam dispersion-matching technique. A background subtraction procedure was applied and allowed for the extraction of excitation energy spectra with low background. Measurements of the (p,t) reaction at zero degrees for Ep=100 and 200 MeV benefited from the difference in magnetic rigidity between the reaction products and the beam particles, resulting in background-free spectra with an excitation energy-resolution of 32 and 48 keV (FWHM), respectively, and a scattering angle resolution of 0.55° (FWHM). The addition of Double Sided Silicon Strip Detectors (DSSSD) at backward scattering angles allowed for coincident measurements of particle-decay of states excited in the (p,t) reaction at Ep=200MeV.

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U2 - 10.1016/j.nima.2011.06.077

DO - 10.1016/j.nima.2011.06.077

M3 - Article

VL - 654

SP - 29

EP - 39

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

IS - 1

ER -