High-spin study of octupole-deformed 222Th and reduction of the background from prompt fission.

J. F. Smith; N. J. Hammond; P. Bednarczyk; D. M. Cullen; D. Curien; O. Dorvaux; A. M. Fletcher; B. P. Gall; J. C. Lisle; L. K. Pattison; N. Schulz; G. Sletten; A. G. Smith; M. Whitehead

High-spin study of octupole-deformed 222Th and reduction of the background from prompt fission.

J. F. Smith, N. J. Hammond, P. Bednarczyk, D. M. Cullen, D. Curien, O. Dorvaux, A. M. Fletcher, B. P. Gall, J. C. Lisle, L. K. Pattison, N. Schulz, G. Sletten, A. G. Smith, M. Whitehead

Research output: Chapter in Book/Conference proceeding › Conference contribution

Abstract

High-spin states have been studied in the octupole-deformed 222Th nucleus using the 208Pb(18O,4n) reaction. De-excitation gamma rays were detected using the Euroball-IV gamma-ray spectrometer. The large background of gamma rays from prompt fission fragments, which generally hampers the spectroscopy of actinide nuclei in fusion-evapn. reactions, has been reduced using the Euroball-IV inner BGO ball as a sum-energy filter. With the requirement that the summed gamma-ray energy detected in the reaction is less than 10 MeV, the intensity of 222Th gamma-rays, relative to the prompt fission background is significantly improved. The expt. and data anal. are discussed, and preliminary spectroscopic results are presented. [on SciFinder (R)]

Original language	English
Title of host publication	AIP Conference Proceedings
Volume	656
Publication status	Published - 2003

Keywords

Nuclear energy level (of thorium 222); Gamma ray (of thorium 222 and redn. of the background from prompt fission); Fission (redn. of gamma ray background from prompt fission)

Cite this

@inproceedings{df00c82eb42945d89b298f636fc51c79,

title = "High-spin study of octupole-deformed 222Th and reduction of the background from prompt fission.",

abstract = "High-spin states have been studied in the octupole-deformed 222Th nucleus using the 208Pb(18O,4n) reaction. De-excitation gamma rays were detected using the Euroball-IV gamma-ray spectrometer. The large background of gamma rays from prompt fission fragments, which generally hampers the spectroscopy of actinide nuclei in fusion-evapn. reactions, has been reduced using the Euroball-IV inner BGO ball as a sum-energy filter. With the requirement that the summed gamma-ray energy detected in the reaction is less than 10 MeV, the intensity of 222Th gamma-rays, relative to the prompt fission background is significantly improved. The expt. and data anal. are discussed, and preliminary spectroscopic results are presented. [on SciFinder (R)]",

keywords = "Nuclear energy level (of thorium 222); Gamma ray (of thorium 222 and redn. of the background from prompt fission); Fission (redn. of gamma ray background from prompt fission)",

author = "Smith, {J. F.} and Hammond, {N. J.} and P. Bednarczyk and Cullen, {D. M.} and D. Curien and O. Dorvaux and Fletcher, {A. M.} and Gall, {B. P.} and Lisle, {J. C.} and Pattison, {L. K.} and N. Schulz and G. Sletten and Smith, {A. G.} and M. Whitehead",

year = "2003",

language = "English",

volume = "656",

booktitle = "AIP Conference Proceedings",

}

TY - GEN

T1 - High-spin study of octupole-deformed 222Th and reduction of the background from prompt fission.

AU - Smith, J. F.

AU - Hammond, N. J.

AU - Bednarczyk, P.

AU - Cullen, D. M.

AU - Curien, D.

AU - Dorvaux, O.

AU - Fletcher, A. M.

AU - Gall, B. P.

AU - Lisle, J. C.

AU - Pattison, L. K.

AU - Schulz, N.

AU - Sletten, G.

AU - Smith, A. G.

AU - Whitehead, M.

PY - 2003

Y1 - 2003

N2 - High-spin states have been studied in the octupole-deformed 222Th nucleus using the 208Pb(18O,4n) reaction. De-excitation gamma rays were detected using the Euroball-IV gamma-ray spectrometer. The large background of gamma rays from prompt fission fragments, which generally hampers the spectroscopy of actinide nuclei in fusion-evapn. reactions, has been reduced using the Euroball-IV inner BGO ball as a sum-energy filter. With the requirement that the summed gamma-ray energy detected in the reaction is less than 10 MeV, the intensity of 222Th gamma-rays, relative to the prompt fission background is significantly improved. The expt. and data anal. are discussed, and preliminary spectroscopic results are presented. [on SciFinder (R)]

AB - High-spin states have been studied in the octupole-deformed 222Th nucleus using the 208Pb(18O,4n) reaction. De-excitation gamma rays were detected using the Euroball-IV gamma-ray spectrometer. The large background of gamma rays from prompt fission fragments, which generally hampers the spectroscopy of actinide nuclei in fusion-evapn. reactions, has been reduced using the Euroball-IV inner BGO ball as a sum-energy filter. With the requirement that the summed gamma-ray energy detected in the reaction is less than 10 MeV, the intensity of 222Th gamma-rays, relative to the prompt fission background is significantly improved. The expt. and data anal. are discussed, and preliminary spectroscopic results are presented. [on SciFinder (R)]

KW - Nuclear energy level (of thorium 222); Gamma ray (of thorium 222 and redn. of the background from prompt fission); Fission (redn. of gamma ray background from prompt fission)

M3 - Conference contribution

VL - 656

BT - AIP Conference Proceedings

ER -

High-spin study of octupole-deformed 222Th and reduction of the background from prompt fission.

Abstract

Keywords

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