rack R rad radiation absorbed dose 1 0.01 1 100 radiation absorbed dose 1 1 Gy radiation accident radiation biochemistry radiation biology radiation burn radiation cancer radiation chemistry radiation curing radiation damage
radiation detection instrument radiation detector radiation dose radiation dosimetry radiation effect radiation exposure pathway radiation hazard radiation health effect 1. 2. ) ( radiation injury
radiation monitor radiation monitoring radiation polymerization radiation protection radiation protection expert radiation protection guides (RPG) radiation public health radiation shielding radiation sickness (syndrome) 2 4 6 radiation source radiation stability radiation standards
radiation sterilization; irradiosterilization radiation survey radiation therapy; radiotherapy radiation weighting factor (W R ) Q W R (equivalent dose) (dose equivalent) W R 1 µ 1 10 5 10 100 10 0.1 2 20 2 20 10 20 5 2 5 20 1. 2. W R ICRU 10 Q Q D 1 0 L D L dl L D L dl 10 L L dl Q L 10 L 3. DNA 4.ICRU 0.3 10 3 76.2 11.1 10.1 2.6
radiation work permit (RWP) radioactive annihilation treatment radioactive capture (n, ) radioactive capture cross section radioactive contaminant radioactive contamination radioactive dating radioactive decay decay disintegration ( ) transformation ( ) radioactive decay series (decay series) radioactive decontamination radioactive deposit; active deposit
radioactive disintegration radioactive effluent radioactive emanation radioactive equilibrium ( 226) ( ) (secular) ( 222 ) ( ) (transient) radioactive fallout radioactive half-life radioactive heat radioactive material; radioactive substance radioactive physics radioactive series ( ) radioactive standard
radioactive tracer; radiotracer radioactive waste; radwaste ( ) radioactivity activity radiobiology radiocarbon dating radiochemical analysis radiochemisty radiodecay heat radioecology radioelement; radioactive element 1. 2. radiography
radioisotope; radioactive isotope ( ) 5,000 radioisotope dating radiolaria radiolarian ooze radiological assessment radiological protection (radiation protection) radiological sabotage radiological survey radiology radiolysis 10 6 radiometric analysis; radiometry
radiomutation radionuclide migration radionuclide retardation radioresistance radiosensitivity radiotoxicity ( A) ( B) radium-beryllium neutron source radwaste building radwaste disposal rainout washout rain shadow range 1. ( ) ( )
2. rapid drawdown Rasmussen report (Norman C. Rasmussen) WASH-1400 Reactor Safety Study: An Assessment of Accident Risks in U.S. Commercial Nuclear Power plants WASH-1400 reactivity (K eff -1)/K eff ( ) ( ) K eff reactor building reactor chemistry reactor constants reactor coolant system reactor material reactor operator reactor period e 1/e
reactor physics reactor poison (Xe) (Sm) reactor pressure vessel (RPV) reactor protection system (RPS) reactor simulator reactor site criteria reactor siting reactor structural material reactor vessel head reactor waste recessional moraine
recharge recharge area reclamation recoil recoil atom recoil electron ( ) recoil particle recoil proton ( ) recombination recombination coefficient recombiner recording level recovery rate
recovery time recycling red clay 0 30% red mud 25% redox process redox (reduction) (oxidation) redundancy reenrichment reentry reference level 1 (recording) 2 (investigation) 3 (intervention) (reporting) reference man 20 30 1.7 70 10 20 reflected reactor
reflector 1. 2. 1. ( ) (neutron economy) 2. refueling regeneration 1. 238 239 2. regeneration factor 1 regenerative reactor regional metamorphism regolith regression 1. 2. 1. 2. (fitting) regulatory body regulatory guides
rejuvenation relative abundance relative biological effectiveness (RBE) RBE 200kV X relative compaction relative density relative porosity relative risk (multiplicative) relative specific activity relative stopping power ( ) relaxation length 1. (0) x (x)
(x) (0) e -x/ λ 1/e 2. reload fuel rem (roentgen equivalent man) 1 100 remanent magnetism remedial action 1. 2. remote control equipment remotely handled waste; remote-handle waste rep roentgen equivalent physical 93 1 reporting level 50% repository
repository system reprocessing ) reprocessing loss research reactor residence time 1/ resident inspector ( ); residual activity residual dose (RD) residual heat removal (RHR) 6 (LPCI mode) (containment cooling mode) (condensing mode) (torus cooling mode) (shut down cooling mode) (test mode) RHR (LOCA) residual nucleus residual saturation
resolution time resonance resonance absorption resonance capture resonance cross section resonance energy resonance level resonance neutron (1-10 ) resonance neutron measurement 0.4 resonance peak rest mass
restricted area resuspension resuspension constant resuspension factor resuspension factor retardation factor R 1 f R 1 f K d ; f (g/m 3 ) K d retention pond retrievability retrievable reverse fault reverse osmosis
Reynolds number d (v) ( ) ( ) Re dv / Re 2,100 4,000 rheological character rheology rheomorphic fold rhyolite Rhm 1 ( ) roentgen per hour at one meter Richter scale rift rift fault right-lateral fault right-lateral offset
right-lateral fault ripple mark riprap risk risk constraint dose constraint; potential exposure river capture roche moutonnee rock rock bolt rock burst rock cycle rock glacier rock-mass quality
rock mechanics rock salt rod consolidation roentgen (R) R 1 2.58 10-4 / 1895 Wihlem K. Roentgen / 1 / 3,876 roentgen-equivalent-man (rem) 1 ( ) rem roentgen ray roentgenometer; roentgen meter room-and-pillar mining ropy lava rotary core drilling rotary percussive drilling rotational slip
routine inspection 1. 2. rubble run-away of reactor running sand quick sand runoff rutile