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Spin dependence of rotational damping by the rotational plane mapping method

Abstract

In the study of deformed nuclei by gamma spectroscopy, the large quadrupole transition strength known from rotational bands at high excitation energy may be distributed over all final states of a given parity within an interval defined as the rotational damping width {Gamma}{sub rot} The method of rotational plane mapping extracts a value of {Gamma}{sub rot} from the width of valleys in certain planes in the grid plots of triple gamma coincidence data sets. The method was applied to a high spin triple data set on {sup 162,163}Tm taken with NORDBALL at the tandem accelerator of the Niels Bohr Institute, and formed in the reaction {sup 37}Cl + {sup 130}Te. The value {Gamma}{sub rot} = 85 keV was obtained. Generally, experimental values seem to be lower than theoretical predictions, although the only calculation made was for {sup 168}Yb. 6 refs., 3 figs.
Authors:
Leoni, S; Bracco, A; Million, B; [1]  Herskind, B; Dossing, T; Rasmussen, P; [2]  Bergstrom, M; Brockstedt, A; Carlsson, H; Ekstrom, P; Nordlund, A; Ryde, H; [3]  Ingebretsen, F; Tjom, P O; [4]  Lonnroth, T [5] 
  1. Milan Univ. (Italy). Ist. di Fisica
  2. Niels Bohr Inst., Copenhagen (Denmark)
  3. Lund Univ. (Sweden). Dept. of Physics
  4. Oslo Univ. (Norway)
  5. Aabo Akademi, Turku (Finland). Dept. of Physics
Publication Date:
Aug 01, 1992
Product Type:
Technical Report
Report Number:
AECL-10613(v.2); CONF-920548-; CONF-9205444-
Reference Number:
SCA: 663220; 663110; 663570; PA: AIX-28:057878; EDB-97:122633; SN: 97001841998
Resource Relation:
Conference: Workshop on large gamma-ray detector arrays, Ottawa (Canada); Chalk River (Canada), 18-23 May 1992; 19-23 May 1992; Other Information: PBD: Aug 1992; Related Information: Is Part Of Proceedings of the international conference on nuclear structure at high angular momentum and the workshop on large gamma-ray detector arrays; PB: 500 p.
Subject:
66 PHYSICS; HIGH SPIN STATES; E2-TRANSITIONS; THULIUM 163; DEFORMED NUCLEI; CHLORINE 37 REACTIONS; DAMPING; EXPERIMENTAL DATA; GAMMA CASCADES; GAMMA SPECTROSCOPY; HEAVY ION FUSION REACTIONS; MEV RANGE 100-1000; NUCLEAR MODELS; NUCLEAR STRUCTURE; ROTATIONAL STATES; TELLURIUM 130 TARGET; THULIUM 162; YRAST STATES
OSTI ID:
520610
Research Organizations:
Atomic Energy of Canada Ltd., Chalk River, ON (Canada). Chalk River Nuclear Labs.
Country of Origin:
Canada
Language:
English
Other Identifying Numbers:
Other: ON: DE97638960; TRN: CA9700461057878
Availability:
INIS; OSTI as DE97638960
Submitting Site:
INIS
Size:
pp. 66-70
Announcement Date:
Sep 23, 1997

Citation Formats

Leoni, S, Bracco, A, Million, B, Herskind, B, Dossing, T, Rasmussen, P, Bergstrom, M, Brockstedt, A, Carlsson, H, Ekstrom, P, Nordlund, A, Ryde, H, Ingebretsen, F, Tjom, P O, and Lonnroth, T. Spin dependence of rotational damping by the rotational plane mapping method. Canada: N. p., 1992. Web.
Leoni, S, Bracco, A, Million, B, Herskind, B, Dossing, T, Rasmussen, P, Bergstrom, M, Brockstedt, A, Carlsson, H, Ekstrom, P, Nordlund, A, Ryde, H, Ingebretsen, F, Tjom, P O, & Lonnroth, T. Spin dependence of rotational damping by the rotational plane mapping method. Canada.
Leoni, S, Bracco, A, Million, B, Herskind, B, Dossing, T, Rasmussen, P, Bergstrom, M, Brockstedt, A, Carlsson, H, Ekstrom, P, Nordlund, A, Ryde, H, Ingebretsen, F, Tjom, P O, and Lonnroth, T. 1992. "Spin dependence of rotational damping by the rotational plane mapping method." Canada.
@misc{etde_520610,
title = {Spin dependence of rotational damping by the rotational plane mapping method}
author = {Leoni, S, Bracco, A, Million, B, Herskind, B, Dossing, T, Rasmussen, P, Bergstrom, M, Brockstedt, A, Carlsson, H, Ekstrom, P, Nordlund, A, Ryde, H, Ingebretsen, F, Tjom, P O, and Lonnroth, T}
abstractNote = {In the study of deformed nuclei by gamma spectroscopy, the large quadrupole transition strength known from rotational bands at high excitation energy may be distributed over all final states of a given parity within an interval defined as the rotational damping width {Gamma}{sub rot} The method of rotational plane mapping extracts a value of {Gamma}{sub rot} from the width of valleys in certain planes in the grid plots of triple gamma coincidence data sets. The method was applied to a high spin triple data set on {sup 162,163}Tm taken with NORDBALL at the tandem accelerator of the Niels Bohr Institute, and formed in the reaction {sup 37}Cl + {sup 130}Te. The value {Gamma}{sub rot} = 85 keV was obtained. Generally, experimental values seem to be lower than theoretical predictions, although the only calculation made was for {sup 168}Yb. 6 refs., 3 figs.}
place = {Canada}
year = {1992}
month = {Aug}
}