Anisotropic alpha emission from on-line separated isotopes

A systematic on-line nuclear-orientation study of heavy isotopes using anisotropic ..cap alpha.. emission is reported for the first time. The anisotrophies recorded for /sup 199/At, /sup 201/At, and /sup 203/At are remarkably pronounced and strongly varying. At lower neutron number the ..cap alpha.....

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Veröffentlicht in:	Phys. Rev. Lett.; (United States) 1986-05, Vol.56 (18), p.1901-1904
Hauptverfasser:	Wouters, J, Vandeplassche, D, van Walle E, Severijns, N, Vanneste, L
Format:	Artikel
Sprache:	eng
Schlagworte:	651921 - Nuclear Properties & Reactions, A=190-219, Experimental- Mass, Abundance, & Binding Energy- (-1987) 651922 - Nuclear Properties & Reactions, A=190-219, Experimental- Radioactive Decay- (-1987) ALPHA DECAY ALPHA DECAY RADIOISOTOPES ANGULAR DISTRIBUTION ANISOTROPY ASTATINE 199 ASTATINE 201 ASTATINE 203 ASTATINE ISOTOPES BETA DECAY RADIOISOTOPES DATA DECAY DISTRIBUTION ELECTRON CAPTURE RADIOISOTOPES EVEN-ODD NUCLEI EXPERIMENTAL DATA HEAVY NUCLEI INFORMATION ISOTOPES MINUTES LIVING RADIOISOTOPES NUCLEAR PHYSICS AND RADIATION PHYSICS NUCLEAR PROPERTIES NUCLEAR RADII NUCLEI NUMERICAL DATA ODD-EVEN NUCLEI ORIENTED NUCLEI POLONIUM 199 POLONIUM ISOTOPES RADIOISOTOPES
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Beschreibung
Zusammenfassung:	A systematic on-line nuclear-orientation study of heavy isotopes using anisotropic ..cap alpha.. emission is reported for the first time. The anisotrophies recorded for /sup 199/At, /sup 201/At, and /sup 203/At are remarkably pronounced and strongly varying. At lower neutron number the ..cap alpha.. particles are more preferentially emitted perpendicularly to the nuclear-spin direction. This may be interpreted in terms of the high sensitivity of the ..cap alpha..-emission probability to changes in the nuclear shape.
ISSN:	0031-9007 1079-7114
DOI:	10.1103/PhysRevLett.56.1901