title: Energy spectrum of iron nuclei measured inside the MIR space craft using CR-39 track detectors.
abstract: We have exposed stacks of CR-39 plastic nuclear track detectors inside the MIR space craft during the EUROMIR95 space mission for almost 6 months. Over this long period a large number of tracks of high LET events was accumulated in the detector foils. The etching and measuring conditions for this experiment were optimized to detect tracks of stopping iron nuclei. We found 185 stopping iron nuclei inside the stack and identified their trajectories through the material of the experiment. Based on the energy-range relation the energy at the surface of the stack was determined. These particles allow the determination of the low energy part of the spectrum of iron nuclei behind shielding material inside the MIR station.
authors.affiliation: Department of Physics, University of Siegen, Siegen, Germany.
authors.forename: W
authors.initials: W
authors.lastname: Gunther
authors.forename: D
authors.initials: D
authors.lastname: Leugner
authors.forename: E
authors.initials: E
authors.lastname: Becker
authors.forename: F
authors.initials: F
authors.lastname: Flesch
authors.forename: W
authors.initials: W
authors.lastname: Heinrich
authors.forename: G
authors.initials: G
authors.lastname: Huntrup
authors.forename: G
authors.initials: G
authors.lastname: Reitz
authors.forename: H
authors.initials: H
authors.lastname: Rocher
authors.forename: T
authors.initials: T
authors.lastname: Streibel
mesh_terms: D003359:Cosmic Radiation; D005118:Extraterrestrial Environment; D020450:Heavy Ions; D007501:Iron; D008962:Models, Theoretical; D011092:Polyethylene Glycols; D011829:Radiation Dosage; D011834:Radiation Monitoring / Q000295:instrumentation*; D011835:Radiation Protection; D011874:Radiometry; D013026:Space Flight / Q000295:instrumentation*; D018531:Spacecraft / Q000295:instrumentation*
chemical_list: C028827:CR 39; D011092:Polyethylene Glycols; D007501:Iron