Accession Number:

ADA231230

Title:

Proton Depth Dose Distribution: 3-D Calculation of Dose Distributions from Solar Flare Irradiation

Descriptive Note:

Interim rept. May-Nov 1988

Corporate Author:

TEXAS A AND M RESEARCH FOUNDATION COLLEGE STATION

Personal Author(s):

Report Date:

1990-11-01

Pagination or Media Count:

39.0

Abstract:

Relative depth dose distribution to the head from 3 typical solar flare proton events were calculated for 3 different exposure geometries 1 single directional radiation incident upon a fixed head 2 single directional radiation incident upon head rotating axially 2-D rotation and 3 omnidirectional radiation incident upon head 3-D rotation. Isodose distributions in the transverse plane intersecting isocenter are presented for each of the 3 solar flare events in all 3 exposure geometries. In all 3 calculation configurations the maximum predicted dose occurred on the surface of the head. The dose at the isocenter of the head relative to the surface dose for the 2-D and 3-D rotation geometries ranged from 2 to 19, increasing with increasing energy of the event. The calculations suggest the superficially located organs lens of the eye and skin are at greatest risk for the proton events studied here.

Subject Categories:

  • Astrophysics
  • Radiobiology

Distribution Statement:

APPROVED FOR PUBLIC RELEASE