Radiation Physics CH4

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Author:
moostacheroc
ID:
253107
Filename:
Radiation Physics CH4
Updated:
2013-12-14 09:29:27
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radiation physics
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Physics ch.4 Khan
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  1. Grenz-ray therapy
    low-energy treatment below 20kv
  2. Contact Therapy / Endocavitary
    operates at 40-50kv  tube current of 2ma SSD-2.0cm filter of .5-1.0mm Al.
  3. Contact Therapy/Endocavitary Dept
    not deeper than 2mm mostly for superficial treatments
  4. superficial therapy
    50-150kv filter 1-6mm Al tube current 5-8mA. SSD 15-20cm
  5. HVL half value layer
    defined as the thickness of a specified material that m when introduced into the path of the beam, reduces the exposure rate by one half.
  6. Orthovoltage therapy or deep therapy
    150-500kv most operate from 200-300kv and 10-20 mA

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