Nuclear Data Sheets for A = 239

Journal Article · Sat Nov 15 00:00:00 EST 2014 · Nuclear Data Sheets

DOI:https://doi.org/10.1016/J.NDS.2014.11.003· OSTI ID:22439777

Browne, E.; Tuli, J. K.

Spectroscopic data and level schemes from radioactive decay and nuclear reaction studies are presented here for all nuclei with mass number A=239. In general, a relatively small amount of new data on this mass chain has been reported since the previous evaluation in 2003. However, special evaluations, such as “Database of prompt gamma rays from slow neutron–capture from elemental analysis” (2007ChZX), have provided additional precise data for levels in {sup 239}U. Also, new Coulomb excitation measurements in {sup 239}Pu have extended the knowledge of the 1/2[631] rotational band up to Jπ=(55/2+), and that of the octupole vibrational band up to Jπ=(53/2−). For historical knowledge it is worth mentioning the report on the “Discovery of isotopes of the transuranium elements with 93 <= Z <= 98” (2013Fr02), where the information for elements Np, Pu, Am, and Cf with mass number A=239 is presented. The alpha hindrance factors (HF) presented in this evaluation were calculated using values of the radius parameter (r{sub 0}) interpolated from those for even–even adjacent nuclei given by 1998Ak04.

• OSTI ID: 22439777
• Journal Information: Nuclear Data Sheets, Vol. 122; Other Information: Copyright (c) 2014 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.; Country of input: International Atomic Energy Agency (IAEA); ISSN 0090-3752
• Country of Publication: United States
• Language: English

Related Subjects

73 NUCLEAR PHYSICS AND RADIATION PHYSICS
AMERICIUM 239
CALIFORNIUM 239
COULOMB EXCITATION
EVALUATED DATA
GAMMA RADIATION
NEPTUNIUM 239
NUCLEAR DATA COLLECTIONS
NUCLEAR DECAY
NUCLEAR REACTIONS
PLUTONIUM 239
ROTATIONAL STATES
SLOW NEUTRONS
URANIUM 239
VIBRATIONAL STATES