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

Dachev TP, Tomov BT, Matviichuk YN, Dimitrov PG, Bankov NG, Reitz G, Horneck G, Haeder DP, Lebert M, Schuster M (2012)


Publication Status: Published

Publication Type: Journal article

Publication year: 2012

Journal

Publisher: Elsevier

Book Volume: 50

Pages Range: 282-292

Journal Issue: 2

DOI: 10.1016/j.asr.2012.03.028

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.

Authors with CRIS profile

Involved external institutions

How to cite

APA:

Dachev, T.P., Tomov, B.T., Matviichuk, Y.N., Dimitrov, P.G., Bankov, N.G., 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