CRITICALITY CURVES FOR PLUTONIUM HYDRAULIC FLUID MIXTURES

WD, WITTEKIND

Hanford Site (Wash.)

关键词: Criticality;    Reflection;    Air;    Geometry;    Safety;   

DOI  :  10.2172/919537
RP-ID  :  HNF-33756 Rev 0
RP-ID  :  DE-AC06-96RL13200
RP-ID  :  919537

美国|英语

来源: UNT Digital Library

【 摘 要 】

This Calculation Note performs and documents MCNP criticality calculations for plutonium (100% {sup 239}Pu) hydraulic fluid mixtures. Spherical geometry was used for these generalized criticality safety calculations and three geometries of neutron reflection are: {sm_bullet}bare, {sm_bullet}1 inch of hydraulic fluid, or {sm_bullet}12 inches of hydraulic fluid. This document shows the critical volume and critical mass for various concentrations of plutonium in hydraulic fluid. Between 1 and 2 gallons of hydraulic fluid were discovered in the bottom of HA-23S. This HA-23S hydraulic fluid was reported by engineering to be Fyrquel 220. The hydraulic fluid in GLovebox HA-23S is Fyrquel 220 which contains phosphorus. Critical spherical geometry in air is calculated with 0 in., 1 in., or 12 inches hydraulic fluid reflection.