Author: S. Seltzer
Center for Radiation Research
National Bureau of Standards
Washington, D.C. 20234

Parameter: Absorbed dose in aluminum

Brief Description:
SHIELDOSE is a computer code for space-shielding radiation dose calculations. It determines the absorbed dose as a function of depth in aluminum shielding material of spacecraft, given the electron and proton fluences encountered in orbit. The code makes use of precalculated, mono-energetic depth-dose data for an isotropic, broad-beam fluence of radiation incident on uniform aluminum plane media. These precalculated values are the result of detailed electron and electron-bremsstrahlung Monte Carlo calculations. The present version of SHIELDOSE calculates, for arbitrary proton and electron incident spectra, the dose absorbed in small volumes of the detector materials Al, H2O (tissue-equivalent detector), Si, and SiO2, in the following aluminum shield geometries: (1) in a semi-infinite plane medium, as a function of depth; (2) at the transmission surface of a plane slab, as a function of slab thickness; and (3) at the center of a solid sphere, as a function of sphere radius.

Availability: (1) Retrievable from CCMC's anonymous FTP site. For a newer version of the code check the NIST ftp directory

S. M. Seltzer, SHIELDOSE: A Computer Code for Space-Shielding Radiation Dose Calculations, National Bureau of Standards, NBS Technical Note 1116, U.S. Government Printing Office, Washington, D.C., 1980.

S. M. Seltzer, Electron, Electron-Bremsstrahlung, and Proton Depth-Dose Data for Space- Shielding Applications, IEEE Trans. Nuclear Sci. NS-26, 4896, 1979.

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Last Updated: 17 Janaury 1996, DKB