appm	atomic parts per million
at%	atomic %
BCC	body-centred cubic
BCT	body-centred tetragonal
BOR	a series of Russian test reactors
BWR	boiling water reactor
CANDU	Canada Deuterium Uranium (CANDU) a trademark of Atomic Energy of Canada Limited
CW	cold worked
DPA or dpa	displacements per atom
EBR II	experimental breeder reactor 2
FCC	face-centred cubic
FMD	freely-migrating defects
FPY	full power years
FT	flux thimble
HCP	hexagonal close packed
HFIR	high-flux isotope reactor
HWR	heavy water reactor
IASCC	irradiation-assisted stress corrosion cracking
INCONEL	a trademark of the special metals company
LMR	liquid metal (fast) reactor
LWR	light-water reactor
MASS	metastable austenitic stainless steels
ORNL	Oak Ridge National Laboratory
PKA	primary knock-on atom
PWR	pressurized water reactor
PV	pressure vessel
SICG	stress-induced climb and glide
SIPA	stress-induced preferential absorption
SIPN	stress-induced preferential nucleation
SEM	scanning electron microscope (or microscopy)
SFR	sodium fast reactor
SPECTER	a code for calculating DPA for various elements
SS	stainless steel
TDAM	energy available for creating atomic displacements for a given PKA
TEM	transmission electron microscope or microscopy
UTS	ultimate tensile strength
wtppm	parts per million by weight
wt%	weight %
YS	yield strength austenitic