skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Ground-state and isomeric-state cross sections for 181 Ta( n , 2 n ) 180 Ta between 8 and 15 MeV

Abstract

Using the activation technique, the cross section for the reaction 181Ta(n,2n) 180gTa was measured from 8 to 15 MeV in small energy steps to resolve inconsistencies in the existing database. The 93.4 keV γ ray from the decay of the 180gTa ground state was recorded with a high-purity germanium (HPGe) detector. The monitor reactions 27Al(n,α) 24Na and 197Au(n,2n) 196Au were used for neutron fluence determination. The ENDF VII.1 and TENDL 2011 evaluations are in considerable disagreement with the present data, which in turn agree very well with the majority of the existing data in the 14 MeV energy region. Furthermore, a detailed analysis using the code TALYS was performed to describe the present data and to predict the (n,2n) cross section to the isomeric state of 180Ta.

Authors:
 [1];  [2];  [1];  [3]
  1. Duke Univ., Durham, NC (United States); Triangle Univ. Nuclear Lab., Durham, NC (United States)
  2. Triangle Univ. Nuclear Lab., Durham, NC (United States); North Carolina State Univ., Raleigh, NC (United States)
  3. Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
Publication Date:
Research Org.:
Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1224408
Report Number(s):
LLNL-JRNL-615497
Journal ID: ISSN 0556-2813; PRVCAN
DOE Contract Number:  
AC52-07NA27344
Resource Type:
Journal Article
Journal Name:
Physical Review. C, Nuclear Physics
Additional Journal Information:
Journal Volume: 87; Journal Issue: 3; Journal ID: ISSN 0556-2813
Publisher:
American Physical Society (APS)
Country of Publication:
United States
Language:
English
Subject:
73 NUCLEAR PHYSICS AND RADIATION PHYSICS

Citation Formats

Bhatia, C., Gooden, M. E., Tornow, W., and Tonchev, A. P. Ground-state and isomeric-state cross sections for 181Ta( n,2n )180Ta between 8 and 15 MeV. United States: N. p., 2013. Web. doi:10.1103/PhysRevC.87.031601.
Bhatia, C., Gooden, M. E., Tornow, W., & Tonchev, A. P. Ground-state and isomeric-state cross sections for 181Ta( n,2n )180Ta between 8 and 15 MeV. United States. https://doi.org/10.1103/PhysRevC.87.031601
Bhatia, C., Gooden, M. E., Tornow, W., and Tonchev, A. P. Thu . "Ground-state and isomeric-state cross sections for 181Ta( n,2n )180Ta between 8 and 15 MeV". United States. https://doi.org/10.1103/PhysRevC.87.031601. https://www.osti.gov/servlets/purl/1224408.
@article{osti_1224408,
title = {Ground-state and isomeric-state cross sections for 181Ta( n,2n )180Ta between 8 and 15 MeV},
author = {Bhatia, C. and Gooden, M. E. and Tornow, W. and Tonchev, A. P.},
abstractNote = {Using the activation technique, the cross section for the reaction 181Ta(n,2n)180gTa was measured from 8 to 15 MeV in small energy steps to resolve inconsistencies in the existing database. The 93.4 keV γ ray from the decay of the 180gTa ground state was recorded with a high-purity germanium (HPGe) detector. The monitor reactions 27Al(n,α)24Na and 197Au(n,2n)196Au were used for neutron fluence determination. The ENDF VII.1 and TENDL 2011 evaluations are in considerable disagreement with the present data, which in turn agree very well with the majority of the existing data in the 14 MeV energy region. Furthermore, a detailed analysis using the code TALYS was performed to describe the present data and to predict the (n,2n) cross section to the isomeric state of 180Ta.},
doi = {10.1103/PhysRevC.87.031601},
url = {https://www.osti.gov/biblio/1224408}, journal = {Physical Review. C, Nuclear Physics},
issn = {0556-2813},
number = 3,
volume = 87,
place = {United States},
year = {2013},
month = {3}
}