Alpha-decay of light protactinium isotopes
Conference
·
· AIP Conf. Proc.; (United States)
OSTI ID:5462676
Light protactinium isotopes have been produced with /sup 204/Pb (/sup 19/F,xn) reactions. ..cap alpha..-activities with E/sub ..cap alpha../ = 9.90(5) MeV, T/sub 1/2/ = 53(10) ns and E/sub ..cap alpha../ = 9.65(5) MeV, T/sub 1/2/ = 0.78(16) ..mu..s could be attributed to the previously unobserved nuclei /sup 219/Pa and /sup 220/Pa with the help of excitation functions. The peak cross sections for the 4n and 3n evaporation channels are on the order of 10 ..mu..b. The decay energies as well as the halflives fit well into the systematics of these nuclei close to the magic neutron number N = 126. /sup 219/Pa is the shortest lived nuclide known with directly measured halflife.
- Research Organization:
- Technische Universitaet Muenchen, D8046 Garching, FRG
- OSTI ID:
- 5462676
- Report Number(s):
- CONF-870970-
- Conference Information:
- Journal Name: AIP Conf. Proc.; (United States) Journal Volume: 164:1
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
651920* -- Nuclear Properties & Reactions
A=190-219
Experimental
73 NUCLEAR PHYSICS AND RADIATION PHYSICS
ACTINIDE ISOTOPES
ALPHA DECAY
ALPHA DECAY RADIOISOTOPES
ALPHA SPECTRA
BARYONS
CHARGED-PARTICLE REACTIONS
DECAY
ELEMENTARY PARTICLES
ENERGY RANGE
FERMIONS
FLUORINE 19 REACTIONS
HADRONS
HALF-LIFE
HEAVY ION FUSION REACTIONS
HEAVY ION REACTIONS
ISOTOPES
LEAD 204 TARGET
MEV RANGE
MEV RANGE 10-100
NANOSEC LIVING RADIOISOTOPES
NUCLEAR REACTIONS
NUCLEI
NUCLEONS
ODD-EVEN NUCLEI
PROTACTINIUM 219
PROTACTINIUM ISOTOPES
RADIOISOTOPES
SPECTRA
TARGETS
A=190-219
Experimental
73 NUCLEAR PHYSICS AND RADIATION PHYSICS
ACTINIDE ISOTOPES
ALPHA DECAY
ALPHA DECAY RADIOISOTOPES
ALPHA SPECTRA
BARYONS
CHARGED-PARTICLE REACTIONS
DECAY
ELEMENTARY PARTICLES
ENERGY RANGE
FERMIONS
FLUORINE 19 REACTIONS
HADRONS
HALF-LIFE
HEAVY ION FUSION REACTIONS
HEAVY ION REACTIONS
ISOTOPES
LEAD 204 TARGET
MEV RANGE
MEV RANGE 10-100
NANOSEC LIVING RADIOISOTOPES
NUCLEAR REACTIONS
NUCLEI
NUCLEONS
ODD-EVEN NUCLEI
PROTACTINIUM 219
PROTACTINIUM ISOTOPES
RADIOISOTOPES
SPECTRA
TARGETS