Journal article


Relativistic electron fluxes and dose rate variations during April-May 2010 geomagnetic disturbances in the R3DR data on ISS


Publication Details
Author(s): Dachev T, Tomov B, Matviichuk Y, Dimitrov P, Bankov N, Reitz G, Horneck G, Haeder D, Lebert M, Schuster M
Publisher: Elsevier
Publication year: 2012
Volume: 50
Journal issue: 2
Pages range: 282-292
ISSN: 0273-1177

Abstract

Space radiation has been monitored successfully using the Radiation Risks Radiometer-Dosimeter (R3D) installed at the ESA EXPOSE-R (R3DR) facility outside of the Russian Zvezda module of the International Space Station (ISS) between March 2009 and January 2011. R3DR is a Liulin type spectrometer-dosimeter with a single Si PIN detector 2 cm(2) of area and 0.3 mm thick. The R3DR instrument accumulated about 2 million measurements of the absorbed dose rate and flux of 10 s resolution. The total external and internal shielding before the detector of R3DR device is 0.41 g cm(-2). The calculated stopping energy of normally incident particles to the detector is 0.78 MeV for electrons and 15.8 MeV for protons. After the Coronal Mass Ejection (CM E) at 09:54 UTC on 3 April 2010, a shock was observed at the ACE spacecraft at 0756 UTC on 5 April, which led to a sudden impulse on Earth at 08:26 UTC. Nevertheless, while the magnetic substorms on 5 and 6 of April were moderate; the second largest in history of GOES fluence of electrons with energy >2 MeV was measured. The R3DR data show a relatively small amount of relativistic electrons on 5 April. The maximum dose rate of 2323 mu Gy day(-1) was reached on 7 April; by 9 April, a dose of 6600 mu Gy was accumulated. By the end of the period on 7 May 2010 a total dose of 11,587 mu Gy was absorbed. Our data were compared with AE-8 MIN, CRESS and ESA-SEE I models using SPENVIS and with similar observations on American, Japanese and Russian satellites. (C) 2012 COSPAR. Published by Elsevier Ltd. All rights reserved.



How to cite
APA: Dachev, T., Tomov, B., Matviichuk, Y., Dimitrov, P., Bankov, N., Reitz, G.,... Schuster, M. (2012). Relativistic electron fluxes and dose rate variations during April-May 2010 geomagnetic disturbances in the R3DR data on ISS. Advances in Space Research, 50(2), 282-292. https://dx.doi.org/10.1016/j.asr.2012.03.028

MLA: Dachev, Ts. P., et al. "Relativistic electron fluxes and dose rate variations during April-May 2010 geomagnetic disturbances in the R3DR data on ISS." Advances in Space Research 50.2 (2012): 282-292.

BibTeX: Download
Share link
Last updated on 2017-10-22 at 02:46
PDF downloaded successfully