GAMMA-SPECTROSCOPY OF PA-231 BY PARTICLE-COINCIDENCES USING A NEW PIN-DIODE DETECTOR ARRAY

Authors
WURKNERS M DEBOER J LOEWE M STEFFENS H MAIER E SREBRNY J NAPIORKOWSKI PJ IWANICKI J KORDYASZ A KISIELINSKI M KOWALCZYK M CHOINSKI J CZOSNYKA T LEVON AI KVASIL J GUNTHER C SLETTEN G
Citation
M. Wurkners et al., GAMMA-SPECTROSCOPY OF PA-231 BY PARTICLE-COINCIDENCES USING A NEW PIN-DIODE DETECTOR ARRAY, ACT PHY P B, 28(1-2), 1997, pp. 97-100
Citations number
1
Categorie Soggetti
Physics
Journal title
ACTA PHYSICA POLONICA B
ISSN journal
05874254 → ACNP
Volume
28
Issue
1-2
Year of publication
1997
Pages
97 - 100
Database
ISI
SICI code
0587-4254(1997)28:1-2<97:GOPBPU>2.0.ZU;2-W
Abstract
The nucleus Pa-231 lies outside the calculated region of stable octupo le deformation. Investigating the K = 1/2(-) g.s. band and transitions therein can serve to test calculations in the quasiparticle-plus-phon on model including small octupole correlations. To this end a Pa-231 t arget was Coulomb-excited by 260 MeV Ni-58 projectiles. For background reduction a new PIN-diode-mosaic particle detector was constructed to enable the readout of the 20 germanium detectors of NORDBALL in coinc idence with the backscattered particles with good time resolution and position sensitivity. Doppler correction and gamma-gamma-coincidences help to clarify the structure of Pa-231.