Ionizing radiation

["Randy Ross" <RNROSS@BCSC02.GOV.BC.CA>]

To: RADSAFE --INTERNET RADSAFE@ROMULUS.EH
cc: AHGOOD  --BCSC02   Alan Good


What is it? 91nm wavelength photon frees a hydrogen atom inner electron 13.58
eV. I couldn't find a book that would give me the binding energy of an atom
with more than one electron. Ultraviolet is defined in some books as 400 to
100nm and in some as from 400 to 1nm. So is ultraviolet ionizing radiation
for some atoms and for certain wavelengths? Are there some hard and fast rules
out there?

Radiation Protection, Ministry of Health, British Columbia
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