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Correction of Doppler broadening of {gamma}-ray lines induced by particle emission in heavy-ion induced fusion-evaporation reactions

Abstract

The effect of particle emission on the peak shape of {gamma}-ray lines have been investigated using the NORDBALL detector system. By detecting neutrons, protons and {alpha} particles emitted in the {sup 32}S (95 MeV) + {sup 27}Al reaction, the energy and direction of emission of the residual nuclei could be determined and subsequently used for an event-by -event Doppler correction of the detected {gamma} rays. Extensive Monte Carlo simulations were performed to study how the different Doppler phenomena influence the peak shape and in particular which particle detector properties are important for the Doppler correction. (author). 2 refs., 1 tab., 4 figs.
Authors:
Nyberg, J; Seweryniak, D; Fahlander, C; Insua-Cao, P; [1]  Johnson, A; Cederwall, B; [2]  Adamides, E; Piiparinen, M; [3]  Atac, A; Norlin, L O; [4]  Ideguchi, E; Mitarai, S; [5]  Julin, R; Juutinen, S; Tormanen, S; Virtanen, A; [6]  Karczmarczyk, W; Kownacki, J; [7]  Schubart, R [8] 
  1. Uppsala Univ. (Sweden). Dept. of Radiation Sciences
  2. Manne Siegbahn Inst. of Physics, Stockholm (Sweden)
  3. National Centre for Scientific Research, Ag. Paraskevi, Attiki (Greece)
  4. Niels Bohr Inst., Copenhagen (Denmark)
  5. Kyushu Univ., Fukuoka (Japan). Dept. of Physics
  6. Jyvaeskylae Univ. (Finland). Dept. of Physics
  7. Warsaw Univ. (Poland)
  8. Hahn-Meitner-Institut Berlin GmbH (Germany)
Publication Date:
Aug 01, 1992
Product Type:
Conference
Report Number:
AECL-10613(v.2); CONF-920548-; CONF-9205444-
Reference Number:
SCA: 440103; 663220; PA: AIX-28:057412; EDB-97:120194; SN: 97001841638
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:
44 INSTRUMENTATION, INCLUDING NUCLEAR AND PARTICLE DETECTORS; 66 PHYSICS; GAMMA SPECTROSCOPY; DOPPLER BROADENING; ALPHA PARTICLES; ALUMINIUM 27 TARGET; CHROMIUM 50; COMPUTERIZED SIMULATION; CORRECTIONS; ENERGY SPECTRA; FOUR-PI COUNTING; HEAVY ION FUSION REACTIONS; MONTE CARLO METHOD; NEUTRONS; PROTONS; SULFUR 32 REACTIONS
OSTI ID:
520540
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: CA9700518057412
Availability:
INIS; OSTI as DE97638960
Submitting Site:
INIS
Size:
pp. 423-427
Announcement Date:
Sep 23, 1997

Citation Formats

Nyberg, J, Seweryniak, D, Fahlander, C, Insua-Cao, P, Johnson, A, Cederwall, B, Adamides, E, Piiparinen, M, Atac, A, Norlin, L O, Ideguchi, E, Mitarai, S, Julin, R, Juutinen, S, Tormanen, S, Virtanen, A, Karczmarczyk, W, Kownacki, J, and Schubart, R. Correction of Doppler broadening of {gamma}-ray lines induced by particle emission in heavy-ion induced fusion-evaporation reactions. Canada: N. p., 1992. Web.
Nyberg, J, Seweryniak, D, Fahlander, C, Insua-Cao, P, Johnson, A, Cederwall, B, Adamides, E, Piiparinen, M, Atac, A, Norlin, L O, Ideguchi, E, Mitarai, S, Julin, R, Juutinen, S, Tormanen, S, Virtanen, A, Karczmarczyk, W, Kownacki, J, & Schubart, R. Correction of Doppler broadening of {gamma}-ray lines induced by particle emission in heavy-ion induced fusion-evaporation reactions. Canada.
Nyberg, J, Seweryniak, D, Fahlander, C, Insua-Cao, P, Johnson, A, Cederwall, B, Adamides, E, Piiparinen, M, Atac, A, Norlin, L O, Ideguchi, E, Mitarai, S, Julin, R, Juutinen, S, Tormanen, S, Virtanen, A, Karczmarczyk, W, Kownacki, J, and Schubart, R. 1992. "Correction of Doppler broadening of {gamma}-ray lines induced by particle emission in heavy-ion induced fusion-evaporation reactions." Canada.
@misc{etde_520540,
title = {Correction of Doppler broadening of {gamma}-ray lines induced by particle emission in heavy-ion induced fusion-evaporation reactions}
author = {Nyberg, J, Seweryniak, D, Fahlander, C, Insua-Cao, P, Johnson, A, Cederwall, B, Adamides, E, Piiparinen, M, Atac, A, Norlin, L O, Ideguchi, E, Mitarai, S, Julin, R, Juutinen, S, Tormanen, S, Virtanen, A, Karczmarczyk, W, Kownacki, J, and Schubart, R}
abstractNote = {The effect of particle emission on the peak shape of {gamma}-ray lines have been investigated using the NORDBALL detector system. By detecting neutrons, protons and {alpha} particles emitted in the {sup 32}S (95 MeV) + {sup 27}Al reaction, the energy and direction of emission of the residual nuclei could be determined and subsequently used for an event-by -event Doppler correction of the detected {gamma} rays. Extensive Monte Carlo simulations were performed to study how the different Doppler phenomena influence the peak shape and in particular which particle detector properties are important for the Doppler correction. (author). 2 refs., 1 tab., 4 figs.}
place = {Canada}
year = {1992}
month = {Aug}
}