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Slide 9

    TEXT VERSION OF SLIDE:

    Title: High vs. Low Linear Energy Transfet (LET)
    Type: Text Slide
    Content:
    • LET is measured by the ionization density (e.g., ion pairs/cm of tissue) along the path of the radiation.
    • Higher LET causes greater biological impact and is assigned a higher Quality Factor (QF).
      • Example QF values: X, gamma, and beta have QF = 1; alpha QF = 20; thermal neutrons QF = 3; "fast" neutrons (>10 KeV) QF = 10; fission fragments QF>20.