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Radiation shielding evaluation of spacecraft walls against heavy ions using microdosimetry

Radiation shielding evaluation of spacecraft walls against heavy ions using microdosimetry

Category
Academic article
Abstract
– Despite the low contribution of heavy ions to the total
fluence in the space radiation environment, their radiobiological
effect on the human body are extremely high. In this paper, we
investigated the radiation field which resulted from the interaction
of Galactic Cosmic Rays (GCRs), specifically some heavy ions and
energies, typically encountered in space with a realistic multi-layer
sample of the International Space Station (ISS) Columbus
module’s shielding wall. The quality factor, Q, and the normalized
dose equivalent, H, derived from microdosimetric measurements
for C, Ne, and Si ions behind different spacecraft wall
configurations and materials are presented in this paper.
Particularly, Carbon Fiber, Polyoxymethylene, and Perspex with
the same areal density compared to currently used aluminum were
investigated.
Language
English
Author(s)
  • Stefania Peracchi
  • P James
  • Pagani Federico
  • Alexey Pan
  • J. Vohradsky
  • David Bolst
  • Dale A. Prokopovich
  • Susanna Guatelli
  • Marco Petasecca
  • Michael Lerch
  • Sang Yun Lee
  • T Inaniwa
  • Naruhiro Matsufuji
  • Marco Povoli
  • Angela Chun Ying Kok
  • Michael Jackson
  • Timothy Squire
  • Anatoly Rosenfeld
  • Linh Tran
Affiliation
  • University of Wollongong
  • Australian Nuclear Science and Technology Organisation
  • Japan
  • SINTEF Digital / Microsystems and Nanotechnology
  • University of New South Wales