light unit
photo-
actinometry
spectroradiometry
absorption spectrum
opacity
actinometer
emission spectrum
polarimetry
electromagnetic wave
glowing
spectrophotometer
glow
radiance
absorption band
gamma radiation
electronic smog
photoconductivity
bandshape
light spectrum
radiodosimetry
radiation dose
photoelectric effect
radio energy
fluorescence
band
photoconduction
electromagnetometry
infrared light
infrared
upscattering
infrared emission
absorbance
transmission density
photographic density
optical density
infrared radiation
photoinduced
electronic reconnaissance
radio wave
gamma ray
infrared spectrum
mediumwave infrared
microwave radiation
electropollution
fluoresce
radio-frequency
homochromatic
monochromatic
ultraviolet
ultraviolet spectrum
electromagnetic spectrum
extinction
source of illumination
ultraviolet radiation
electromagnetics
dose rate
electromagnetism
transparence
reradiation
transparency
polychromatic
langley
raypath
coefficient of absorption
absorption coefficient
radio radiation
electrosmog
absorptance
radio emission
electron beam
ray
X-ray
X ray
radio-opacity
light
roentgen ray
beamwidth
radiopacity
reabsorption
X-radiation
fluorescent
beam
backscatter
infrared frequency
radiocautery
radio
warm
radioluminescent
broadband
ionization chamber
monoenergetic
field strength unit