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Title: Alpha-decay of light protactinium isotopes

Abstract

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.

Authors:
; ; ; ;
Publication Date:
Research Org.:
Technische Universitaet Muenchen, D8046 Garching, FRG
OSTI Identifier:
5462676
Report Number(s):
CONF-870970-
Journal ID: CODEN: APCPC; TRN: 88-012608
Resource Type:
Conference
Journal Name:
AIP Conf. Proc.; (United States)
Additional Journal Information:
Journal Volume: 164:1; Conference: 5. international conference on nuclei far from stability, Lake Rosseau, Canada, 14 Sep 1987
Country of Publication:
United States
Language:
English
Subject:
73 NUCLEAR PHYSICS AND RADIATION PHYSICS; FLUORINE 19 REACTIONS; HEAVY ION FUSION REACTIONS; LEAD 204 TARGET; PROTACTINIUM 219; ALPHA DECAY; ALPHA SPECTRA; HALF-LIFE; MEV RANGE 10-100; NUCLEONS; ACTINIDE ISOTOPES; ALPHA DECAY RADIOISOTOPES; BARYONS; CHARGED-PARTICLE REACTIONS; DECAY; ELEMENTARY PARTICLES; ENERGY RANGE; FERMIONS; HADRONS; HEAVY ION REACTIONS; ISOTOPES; MEV RANGE; NANOSEC LIVING RADIOISOTOPES; NUCLEAR REACTIONS; NUCLEI; ODD-EVEN NUCLEI; PROTACTINIUM ISOTOPES; RADIOISOTOPES; SPECTRA; TARGETS; 651920* - Nuclear Properties & Reactions, A=190-219, Experimental

Citation Formats

Faestermann, T, Gillitzer, A, Hartel, K, Henning, W, and Kienle, P. Alpha-decay of light protactinium isotopes. United States: N. p., 1987. Web.
Faestermann, T, Gillitzer, A, Hartel, K, Henning, W, & Kienle, P. Alpha-decay of light protactinium isotopes. United States.
Faestermann, T, Gillitzer, A, Hartel, K, Henning, W, and Kienle, P. 1987. "Alpha-decay of light protactinium isotopes". United States.
@article{osti_5462676,
title = {Alpha-decay of light protactinium isotopes},
author = {Faestermann, T and Gillitzer, A and Hartel, K and Henning, W and Kienle, P},
abstractNote = {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.},
doi = {},
url = {https://www.osti.gov/biblio/5462676}, journal = {AIP Conf. Proc.; (United States)},
number = ,
volume = 164:1,
place = {United States},
year = {Thu Dec 10 00:00:00 EST 1987},
month = {Thu Dec 10 00:00:00 EST 1987}
}

Conference:
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