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Title: Status update on the NIFFTE high precision fission cross section measurement program

Abstract

The Neutron Induced Fission Fragment Tracking Experiment (NIFFTE) program has been underway for nearly two years. The program's mission is to measure fission cross sections of the primary fissionable and fissile materials ({sup 235}U, {sup 239}Pu, {sup 238}U) as well as the minor actinides across energies from approximately 50 keV up to 20 MeV with an absolute uncertainty of less than one percent while investigating energy ranges from below an eV to 600 MeV. This basic nuclear physics data is being reinvestigated to support the next generation power plants and a fast burner reactor program. Uncertainties in the fast, resolved and unresolved resonance regions in plutonium and other transuranics are extremely large, dominating safety margins in the next generation nuclear power plants and power plants of today. This basic nuclear data can be used to support all aspects of the nuciear renaissance. The measurement campaign is utilizing a Time Projection Chamber or TPC as the tool to measure these cross sections to these unprecedented levels. Unlike traditional fission cross section measurements using time-of-flight and a multiple fission foil configurations in which fission cross sections in relation to that of {sup 235}U are performed, the TPC project uses time-of-flight and hydrogenmore » as the benchmark cross section. Using the switch to hydrogen, a simple, smooth cross section that can be used which removes the uncertainties associated with the resolved and unresolved resonances in {sup 235}U.« less

Authors:
 [1];  [1];  [2];  [3];  [4];  [5];  [2];  [6];  [7];  [8];  [4];  [8];  [9];  [4];  [6];  [10];  [10];  [10];  [3];  [10] more »;  [10];  [10] « less
  1. Los Alamos National Laboratory
  2. GEORGIA INSTITUTE OF TECH
  3. COLORADO SCHOOL OF THE MINES
  4. OHIO UNIV
  5. LLNL
  6. IDAHO NATIONAL LABORATORY
  7. ABILENE CHRISTIN UNIV
  8. CALIFORNIA POLYTECHNIC STATE UNIV
  9. OREGON STATE UNIV
  10. ABILENE CHRISTIAN UNIV
Publication Date:
Research Org.:
Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1023417
Report Number(s):
LA-UR-10-04750; LA-UR-10-4750
TRN: US1104534
DOE Contract Number:  
AC52-06NA25396
Resource Type:
Conference
Resource Relation:
Conference: American Nuclear Society: 2010 Annual Meeting ; June 13, 2010 ; San Diego, CA
Country of Publication:
United States
Language:
English
Subject:
46; 73; ACCURACY; ACTINIDES; BENCHMARKS; BURNERS; CROSS SECTIONS; ENERGY RANGE; FISSILE MATERIALS; FISSION; FISSION FRAGMENTS; HYDROGEN; NEUTRONS; NUCLEAR PHYSICS; NUCLEAR POWER PLANTS; PLUTONIUM; POWER PLANTS; RESONANCE; SAFETY MARGINS; TIME PROJECTION CHAMBERS

Citation Formats

Laptev, Alexander B, Tovesson, Fredrik, Burgett, Eric, Greife, Uwe, Grimes, Steven, Heffner, Michael D, Hertel, Nolan E, Hill, Tony, Isenhower, Donald, Klay, Jennifer L, Kornilov, Nickolay, Kudo, Ryuho, Loveland, Walter, Massey, Thomas, Mc Grath, Chris, Pickle, Nathan, Qu, Hai, Sharma, Sarvagya, Snyder, Lucas, Thornton, Tyler, Towell, Rusty S, and Watson, Shon. Status update on the NIFFTE high precision fission cross section measurement program. United States: N. p., 2010. Web.
Laptev, Alexander B, Tovesson, Fredrik, Burgett, Eric, Greife, Uwe, Grimes, Steven, Heffner, Michael D, Hertel, Nolan E, Hill, Tony, Isenhower, Donald, Klay, Jennifer L, Kornilov, Nickolay, Kudo, Ryuho, Loveland, Walter, Massey, Thomas, Mc Grath, Chris, Pickle, Nathan, Qu, Hai, Sharma, Sarvagya, Snyder, Lucas, Thornton, Tyler, Towell, Rusty S, & Watson, Shon. Status update on the NIFFTE high precision fission cross section measurement program. United States.
Laptev, Alexander B, Tovesson, Fredrik, Burgett, Eric, Greife, Uwe, Grimes, Steven, Heffner, Michael D, Hertel, Nolan E, Hill, Tony, Isenhower, Donald, Klay, Jennifer L, Kornilov, Nickolay, Kudo, Ryuho, Loveland, Walter, Massey, Thomas, Mc Grath, Chris, Pickle, Nathan, Qu, Hai, Sharma, Sarvagya, Snyder, Lucas, Thornton, Tyler, Towell, Rusty S, and Watson, Shon. Fri . "Status update on the NIFFTE high precision fission cross section measurement program". United States. doi:. https://www.osti.gov/servlets/purl/1023417.
@article{osti_1023417,
title = {Status update on the NIFFTE high precision fission cross section measurement program},
author = {Laptev, Alexander B and Tovesson, Fredrik and Burgett, Eric and Greife, Uwe and Grimes, Steven and Heffner, Michael D and Hertel, Nolan E and Hill, Tony and Isenhower, Donald and Klay, Jennifer L and Kornilov, Nickolay and Kudo, Ryuho and Loveland, Walter and Massey, Thomas and Mc Grath, Chris and Pickle, Nathan and Qu, Hai and Sharma, Sarvagya and Snyder, Lucas and Thornton, Tyler and Towell, Rusty S and Watson, Shon},
abstractNote = {The Neutron Induced Fission Fragment Tracking Experiment (NIFFTE) program has been underway for nearly two years. The program's mission is to measure fission cross sections of the primary fissionable and fissile materials ({sup 235}U, {sup 239}Pu, {sup 238}U) as well as the minor actinides across energies from approximately 50 keV up to 20 MeV with an absolute uncertainty of less than one percent while investigating energy ranges from below an eV to 600 MeV. This basic nuclear physics data is being reinvestigated to support the next generation power plants and a fast burner reactor program. Uncertainties in the fast, resolved and unresolved resonance regions in plutonium and other transuranics are extremely large, dominating safety margins in the next generation nuclear power plants and power plants of today. This basic nuclear data can be used to support all aspects of the nuciear renaissance. The measurement campaign is utilizing a Time Projection Chamber or TPC as the tool to measure these cross sections to these unprecedented levels. Unlike traditional fission cross section measurements using time-of-flight and a multiple fission foil configurations in which fission cross sections in relation to that of {sup 235}U are performed, the TPC project uses time-of-flight and hydrogen as the benchmark cross section. Using the switch to hydrogen, a simple, smooth cross section that can be used which removes the uncertainties associated with the resolved and unresolved resonances in {sup 235}U.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Fri Jan 01 00:00:00 EST 2010},
month = {Fri Jan 01 00:00:00 EST 2010}
}

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