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Title: Lightest Isotope of Bh Produced Via the 209Bi(52Cr,n)260BhReaction

Abstract

The lightest isotope of Bh known was produced in the new {sup 209}Bi({sup 52}Cr,n){sup 260}Bh reaction at the Lawrence Berkeley National Laboratory's 88-Inch Cyclotron. Positive identification was made by observation of eight correlated alpha particle decay chains in the focal plane detector of the Berkeley Gas-Filled Separator. {sup 260}Bh decays with a 35{sub -9}{sup +19} ms half-life by alpha particle emission mainly by a group at 10.16 MeV. The measured cross section of 59{sub -20}{sup +29} pb is approximately a factor of four larger than compared to recent model predictions. The influences of the N = 152 and Z = 108 shells on alpha decay properties are discussed.

Authors:
; ; ; ; ; ;
Publication Date:
Research Org.:
Ernest Orlando Lawrence Berkeley NationalLaboratory, Berkeley, CA (US)
Sponsoring Org.:
USDOE Director. Office of Science. NuclearPhysics
OSTI Identifier:
923353
Report Number(s):
LBNL-62629
Journal ID: ISSN 0031-9007; PRLTAO; R&D Project: NHEAVY; BnR: KB0401022; TRN: US0801814
DOE Contract Number:
DE-AC02-05CH11231
Resource Type:
Journal Article
Resource Relation:
Journal Name: Physical Review Letters; Journal Volume: 100; Related Information: Journal Publication Date: 2008
Country of Publication:
United States
Language:
English
Subject:
73; ALPHA DECAY; ALPHA PARTICLES; CROSS SECTIONS; DECAY; HALF-LIFE

Citation Formats

Nelson, Sarah L., Gregorich, Kenneth E., Dragojevic, Irena, Garcia, Mitch A., Gates, Jacklyn M., Sudowe, Ralf, and Nitsche, Heino. Lightest Isotope of Bh Produced Via the 209Bi(52Cr,n)260BhReaction. United States: N. p., 2007. Web.
Nelson, Sarah L., Gregorich, Kenneth E., Dragojevic, Irena, Garcia, Mitch A., Gates, Jacklyn M., Sudowe, Ralf, & Nitsche, Heino. Lightest Isotope of Bh Produced Via the 209Bi(52Cr,n)260BhReaction. United States.
Nelson, Sarah L., Gregorich, Kenneth E., Dragojevic, Irena, Garcia, Mitch A., Gates, Jacklyn M., Sudowe, Ralf, and Nitsche, Heino. Mon . "Lightest Isotope of Bh Produced Via the 209Bi(52Cr,n)260BhReaction". United States. doi:. https://www.osti.gov/servlets/purl/923353.
@article{osti_923353,
title = {Lightest Isotope of Bh Produced Via the 209Bi(52Cr,n)260BhReaction},
author = {Nelson, Sarah L. and Gregorich, Kenneth E. and Dragojevic, Irena and Garcia, Mitch A. and Gates, Jacklyn M. and Sudowe, Ralf and Nitsche, Heino},
abstractNote = {The lightest isotope of Bh known was produced in the new {sup 209}Bi({sup 52}Cr,n){sup 260}Bh reaction at the Lawrence Berkeley National Laboratory's 88-Inch Cyclotron. Positive identification was made by observation of eight correlated alpha particle decay chains in the focal plane detector of the Berkeley Gas-Filled Separator. {sup 260}Bh decays with a 35{sub -9}{sup +19} ms half-life by alpha particle emission mainly by a group at 10.16 MeV. The measured cross section of 59{sub -20}{sup +29} pb is approximately a factor of four larger than compared to recent model predictions. The influences of the N = 152 and Z = 108 shells on alpha decay properties are discussed.},
doi = {},
journal = {Physical Review Letters},
number = ,
volume = 100,
place = {United States},
year = {Mon May 07 00:00:00 EDT 2007},
month = {Mon May 07 00:00:00 EDT 2007}
}