B B-soil horizon B back end of the fuel cycle back wash backfill backfilling material backfilling background correction background count background exposure background radiation
background of detector 3 background radiation backscatter 90 backscattering factor Bacon report 1972 M. Bacon baffle bag filter balance of plant (BOP) ball clay
ballast band bar barite baryte barn 1 10 28 2 barricade shield barrier 1. 2. barrier island barrier reef barrier shield
baryte basal conglomerate basalt base flow basic rock ( 44 51%) basin batch release batch process batholith 100 bauxite becquerel (Bq) 1 1 1 2.703 10 11 A. Henri Becquerel
bedded salt bedding bedding fault bedrock below regulatory concern (BRC) ( ) belt grinding bench scale benchmark 1. 2. benchmark problem benthic organisms
benthos bentonite beta-absorption gauge beta-active beta burn beta decay 1 ( ) beta decay energy beta disintegration beta decay beta-emitter beta particle 1/1837
beta quenching beta radiation beta-ray beta-ray ( ) ( ) beta-ray spectrometer beta-ray spectrum binding energy bioaccumulation bioassay biochemical oxygen demand (BOD)
bioeconomic effects of radiation biological effect of radiation 1. 2. biological half-life biological placement of radioisotopes ( ) ( biological protection
biological shield biomass biosphere biota biotherm biotite bioturbation 1 2 bitumen 1959 bituminization blanket
blowdown blue mud body burden body feed bog boiling water reactor (BWR) bone seeker borate mode borehole boron coating counter 10 10 7 B B(n, ) Li
boron recycle system (BRS) borosilicate glass 1. 5% 2. boulder 256 boundary boundary layer boundary scavenging brachiopoda braided river branch branching
branch corridor branching branching ratio brattice ( ) break breccia breeder 1 breeder material 232 238 Th U breeder reactor 232 238 233 239 breeding gain 1 1
breeding ratio (BR) 1 bremsstrahlung bridging plug brine ( ) brine inclusion brine migration british thermal unit (BTU) 1 1 1 251.8 brittle fracture brittleness broadband sound
buffer buffer material buffer zone buildup factor bulk density ( ) ( ) bulk shielding test bulkhead bundle of fuel elements 62 2 8 8 (fuel bundle) (fuel channel) (fuel assembly) burial ground burnable poison (B) (Sm) (Dy) (Hf) (Gd) ( )
burn out 1. 2. burn out heat flux 2 2 (BTU ft -h) burner reactor 235 U burnup ( ) (MWD/MTU) burst cartridge detector (BCD) (2) (pr (3) (4) butex process butex dibutyl carbitol