Commonly Used Nuclear Energy Units and Abbreviations
Prefixes and Numerical Values
Basic Unit
Measured
Pico,
Property
10
barn
cross section
curie
radioactivity
dase rate
radiation dose
electron volt
energy
gram
mass
meter
length
rad (radiation
absorbed dose)
radiation
roentgen
rem (roentgen
Mero
me
10
10
ub
uuci;
uC i;
pyc
~c
1
mb
Nege
10
10
b
mCi;
Ci;
mec
mR/hr;
K11¢
c
kCis
Mc
keV
MeV
R/hr;
mr/hr
sor/hr,
rem/hr
mg
g
kg
mm
m
km
urad
mrad
rad
radiation
dose
uk;
ur
mR;
mr
Rs r
eV
yug
ug
equivalent man)
dase
radiation
prem
mrem
rem
rep (roentgen
equivalent physical)
radiation
dose
urep
mrep
rep
us
ms
S
second
time
ton (TNT
equivalent)
device energy
watt
power
Ltww
yw
489
mw
MCI
ke
W
KT
MT
kw
Mw