Achieving accurate nuetron-multiplicity analysis of metals and oxides with weighted point model equations.
Abstract
Neutron multiplicity counting is a technique for the rapid, nondestructive measurement of plutonium mass in pure and impure materials. This technique is very powerful because it uses the measured coincidence count rates to determine the sample mass without requiring a set of representative standards for calibration. Interpreting measured singles, doubles, and triples count rates using the three-parameter standard point model accurately determines plutonium mass, neutron multiplication, and the ratio of ({alpha},n) to spontaneous-fission neutrons (alpha) for oxides of moderate mass. However, underlying standard point model assumptions - including constant neutron energy and constant multiplication throughout the sample - cause significant biases for the mass, multiplication, and alpha in measurements of metal and large, dense oxides.
- Authors:
-
- Jane M.
- William H.
- Merlyn S.
- Douglas R.
- Publication Date:
- Research Org.:
- Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)
- Sponsoring Org.:
- USDOE
- OSTI Identifier:
- 977717
- Report Number(s):
- LA-UR-04-4357
TRN: US1004154
- Resource Type:
- Conference
- Resource Relation:
- Conference: Submitted to: 45th Annual INMM Meeting, Orlando, FL, July 18-22, 2004
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; CALIBRATION; MULTIPLICITY; NEUTRONS; OXIDES; PLUTONIUM; SPONTANEOUS FISSION
Citation Formats
Burward-Hoy, J M, Geist, W H, Krick, M S, and Mayo, D R. Achieving accurate nuetron-multiplicity analysis of metals and oxides with weighted point model equations.. United States: N. p., 2004.
Web.
Burward-Hoy, J M, Geist, W H, Krick, M S, & Mayo, D R. Achieving accurate nuetron-multiplicity analysis of metals and oxides with weighted point model equations.. United States.
Burward-Hoy, J M, Geist, W H, Krick, M S, and Mayo, D R. 2004.
"Achieving accurate nuetron-multiplicity analysis of metals and oxides with weighted point model equations.". United States. https://www.osti.gov/servlets/purl/977717.
@article{osti_977717,
title = {Achieving accurate nuetron-multiplicity analysis of metals and oxides with weighted point model equations.},
author = {Burward-Hoy, J M and Geist, W H and Krick, M S and Mayo, D R},
abstractNote = {Neutron multiplicity counting is a technique for the rapid, nondestructive measurement of plutonium mass in pure and impure materials. This technique is very powerful because it uses the measured coincidence count rates to determine the sample mass without requiring a set of representative standards for calibration. Interpreting measured singles, doubles, and triples count rates using the three-parameter standard point model accurately determines plutonium mass, neutron multiplication, and the ratio of ({alpha},n) to spontaneous-fission neutrons (alpha) for oxides of moderate mass. However, underlying standard point model assumptions - including constant neutron energy and constant multiplication throughout the sample - cause significant biases for the mass, multiplication, and alpha in measurements of metal and large, dense oxides.},
doi = {},
url = {https://www.osti.gov/biblio/977717},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Thu Jan 01 00:00:00 EST 2004},
month = {Thu Jan 01 00:00:00 EST 2004}
}