Integral measurements for higher actinides in CFRMF. [0. 1 to 2000 keV]

Conference · Mon Jan 01 00:00:00 EST 1979

OSTI ID:5906681

Harker, Y. D.; Anderl, R. A.; Turk, E. H.; Schroeder, N. C.

To improve upon the lack of fast integral data for higher actinides, an effort is underway to measure integral capture and fission cross sections for /sup 242/Pu, /sup 241/Am and /sup 243/Am in the fast neutron zone of the Couple Fast Reactivity Measurements Facility (CFRMF). Fission cross sections are determined based on the Ge(Li) gamma spectrometric measurements of the absolute emission rates of the 537-keV and/or 1596-keV lines in the /sup 140/Ba - /sup 140/La decay. The capture rate for /sup 242/Pu is based on the measurement of the absolute emission rate of the 84.0 keV line in the /sup 243/Pu ..beta../sup -/ decay. Although the capture cross sections for /sup 241/Am and /sup 243/Am are not obtained directly, the cross sections for production of /sup 242/Cm and /sup 244/Cm are based on the quantitative alpha spectrometry and total alpha counting. Measured integral and capture cross sections for /sup 242/Pu are 357 mb +- 10% and 146 mb +- 15%. Corresponding spectral averaged cross sections calculated using ENDF/B-IV data and 489 mb and 238 mb, respectively. For /sup 241/Am fission and capture the measured cross sections are 504 mb +- 12% and 1.01 b +- 3%, respectively. For /sup 243/Am fission and capture, the measure cross sections are 0.352 b and .10 b, respectively. 19 references.

• Research Organization: EG and G Idaho, Inc., Idaho Falls (USA); Exxon Nuclear Idaho Co., Inc., Idaho Falls (USA)
• Sponsoring Organization: USDOE
• DOE Contract Number: EY-76-C-07-1570
• OSTI ID: 5906681
• Report Number(s): CONF-791058-21; TRN: 80-000434
• Resource Relation: Conference: International conference on nuclear cross sections for technology, Knoxville, TN, USA, 22 Oct 1979
• Country of Publication: United States
• Language: English

Related Subjects

73 NUCLEAR PHYSICS AND RADIATION PHYSICS
AMERICIUM 241 TARGET
NEUTRON REACTIONS
AMERICIUM 243 TARGET
CAPTURE
FISSION
PLUTONIUM 242 TARGET
EV RANGE 100-1000
EXPERIMENTAL DATA
INTEGRAL CROSS SECTIONS
ISOLATED VALUES
KEV RANGE
MEV RANGE 01-10
NUCLEAR REACTION KINETICS
BARYON REACTIONS
CROSS SECTIONS
DATA
DATA FORMS
ENERGY RANGE
EV RANGE
HADRON REACTIONS
INFORMATION
KINETICS
MEV RANGE
NUCLEAR REACTIONS
NUCLEON REACTIONS
NUMERICAL DATA
REACTION KINETICS
TARGETS
652025* - Nuclear Properties & Reactions
A=220 & above
Experimental- Nuclear Reactions & Scattering- (-1987)
652026 - Nuclear Properties & Reactions
A=220 & above
Experimental- Spontaneous & Induced Fission- (-1987)