UVC rays are useful thanks to their bactericide and ozonizing capacity, so
they are used in the field of sterilization; another field of application that is
being developed is in the polymerization of adhesives or resins (photoresi-
st); as a drawback they cause more serious cases of erythema and
conjunctivitis than UVB rays.
Depending on the effects that they produce, ultraviolet rays may also be
classified as follows:
Producing ozone in the field 180÷220 nm
Producing bactericide (germicide) action in the field 220÷300 nm
Producing erythematous action in the field 280÷320 nm
Black light in the field 320÷400 nm
HD 9021 UVA
Radiometric probe for measuring radiation power, IRRADIANCE, in the
UVA wave length 315÷400 nm, peak at 365 nm. Quartz diffuser for cosine
correction. Measuring range from 10 nanowatt/cm
2
to 200 milliwatt/cm
2
.
The typical response curve of the probe is
as follows:
ENGLISH
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