RADD 2501 Radiation Risk - Radiation Risk Because the...

Info iconThis preview shows pages 1–3. Sign up to view the full content.

View Full Document Right Arrow Icon
Radiation Risk Because the energies of the particles emitted during radioactive processes are extremely high, nearly all such particles fall in the class of ionizing radiation . Activity of source Absorbed dose Biologically effective dose Intensity Old standard unit Curie Rad Rem Roentgen SI unit Becquerel Gray Sievert ... Index Radiation exposure examples HyperPhysics ***** Nuclear R Nave Go Back Ionizing Radiation The practical threshold for radiation risk is that of ionization of tissue. Since the ionization energy of a hydrogen atom is 13.6 eV, the level around 10 eV is an approximate threshold. Since the energies associated with nuclear radiation are many orders of magnitude above this threshold, in the MeV range, then all nuclear radiation is ionizing radiation. Likewise, x-rays are ionizing radiation, as is the upper end of the ultraviolet range. All nuclear
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
radiation must be considered to be ionizing radiation! In addition, the upper end of the electromagnetic
Background image of page 2
Image of page 3
This is the end of the preview. Sign up to access the rest of the document.

Page1 / 5

RADD 2501 Radiation Risk - Radiation Risk Because the...

This preview shows document pages 1 - 3. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online