Chlorine Validation through Critical Integral Experiments [Slides]

Need for Chlorine Experiments What are the needs for a chlorine benchmark?-Y-12 electrorefining operations which credit 35 Cl as a neutron absorber -Idaho National Lab / Terrapower for Molten Chlorine Reactor Experiments (MCRE) fuel fabrication -Los Alamos National Laboratory for their aqueous plutonium chloride systems -35 Cl(n,p) for nuclear data needs The cross section is believed to have a significant uncertainty Interest has been expressed by both domestic and international entities -IRSN and SRNS, amongst others, have also expressed interest in this benchmark LLNL-PRES-871349 TEX-Cl Configurations Three configurations have been executed Configuration Thermal Fission Fraction (%) Intermediate Fission Fraction (%) Fast Fission Fraction (%) 8-Layer Sandwich 58.1 30.2 11.8 8-Layer Standard 62.9 25.5 11.6 18-Layer Standard 13.7 51.8 34.6 LLNL-PRES-871349Chlorine Absorber Design -3/16" NaCl absorbers were vibro-packed with 99.5% pure lab grade sodium chloride salt Salt is encapsulated in aluminum that directly tests the 35 Cl(n,p) cross section. Conclusions