Observation of fragmentation events caused by space radiation: Contribution to the LET spectrum as measured with CR-39 track detectors

Observation of fragmentation events caused by space radiation: Contribution to the LET spectrum as measured with CR-39 track detectors Full article

Journal

Radiation Measurements
ISSN: 1350-4487 , E-ISSN: 1879-0925

Output data

Year: 2016, Volume: 95, Pages: 37-43 Pages count : 7 DOI: 10.1016/j.radmeas.2016.11.002

Tags

Space radiation; Solid state nuclear track detector; CR-39; Nuclear fragmentation; Secondaries; High-LET radiation

Authors

Inozemtsev K.O. ^1,2 , Kushin V.V. ^1,2 , Kodaira S. ³ , Shurshakov V.A. ²

Affiliations

1	National Research Nuclear University MEPhI (Moscow Engineering Physics Institute), Kashirskoe Shosse, 31, Moscow, 115409, Russian Federation
2	State Research Center of the Russian Federation – Institute for Biomedical Problems, Russian Academy of Sciences, Khoroshevskoye Shosse, 76A, Moscow, 123007, Russian Federation
3	Radiation Measurement Research Team, National Institute of Radiological Sciences, National Institutes for Quantum and Radiological Science and Technology, 4-9-1 Anagawa, Inage, Chiba 263-8555, Japan

Different approaches for the track image analysis in CR-39 detectors exposed on board the spacecraft are presented. The main attention is paid to the tracks of short range, high-LET secondary fragments. The appropriate method for the analysis and measurement of such track events is described. Detectors were irradiated on board the Russian “FOTON-M” No. 4 microgravity and bioscience research spacecraft. Chemical treatment, track scanning and data processing were carried out by Russian and Japanese research teams independently using the original approaches. The semi-automated track scanning technique and conventional track data processing were used in Japan. The manual track scanning and alternative track data processing were employed in Russia. Comparative analysis with the conventional method is carried out. The manual event analysis proved to be more informative at high-LET region. The contribution of short range secondaries to the total LET spectrum and total space radiation doses is evaluated.

Inozemtsev K.O. , Kushin V.V. , Kodaira S. , Shurshakov V.A.
Observation of fragmentation events caused by space radiation: Contribution to the LET spectrum as measured with CR-39 track detectors
Radiation Measurements. 2016. V.95. P.37-43. DOI: 10.1016/j.radmeas.2016.11.002 WOS Scopus РИНЦ OpenAlex

Submitted:	Aug 2, 2016
Accepted:	Nov 10, 2016
Published online:	Nov 11, 2016
Published print:	Dec 1, 2016

Web of science:	WOS:000390506000006
Scopus:	2-s2.0-84996520856
Elibrary:	27584560
OpenAlex:	W2549671227

DB	Citing
OpenAlex	11
Scopus	11