Measurement of particle directions in low earth orbit with a Timepix

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21670%2F16%3A00308650" target="_blank" >RIV/68407700:21670/16:00308650 - isvavai.cz</a>

Result on the web

<a href="http://iopscience.iop.org/article/10.1088/1748-0221/11/11/C11023" target="_blank" >http://iopscience.iop.org/article/10.1088/1748-0221/11/11/C11023</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1088/1748-0221/11/11/C11023" target="_blank" >10.1088/1748-0221/11/11/C11023</a>

Result language

angličtina

Original language name

Measurement of particle directions in low earth orbit with a Timepix

Original language description

In Low Earth Orbit (LEO) in space electronic equipment aboard satellites and space crews are exposed to high ionizing radiation levels. To reduce radiation damage and the exposure of astronauts, to improve shielding and to assess dose levels, it is valuable to know the composition of the radiation fields and particle directions. The presented measurements are carried out with the Space Application of Timepix Radiation Monitor (SATRAM). There, a Timepix detector (300 μm thick silicon sensor, pixel pitch 55 μm, 256 x 256 pixels) is attached to the Proba-V, an earth observing satellite of the European Space Agency (ESA). The Timepix detector's capability was used to determine the directions of energetic charged particles and their corresponding stopping powers. Data are continuously taken at an altitude of 820 km on a sun-synchronous orbit. The particles pitch angles with respect to the sensor layer were measured and converted to an Earth Centred Earth Fixed (ECEF) coordinate system. Deviations from an isotropic field are extracted by normalization of the observed angular distributions by a Geant4 Monte Carlo simulation — taking the systematics of the reconstruction algorithm and the pixelation into account.

Czech name

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Czech description

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Type

J_x - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)

CEP classification

JV - Cosmic technologies

OECD FORD branch

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Project

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Continuities

R - Projekt Ramcoveho programu EK

Publication year

2016

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Journal of Instrumentation

ISSN

1748-0221

e-ISSN

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Volume of the periodical

11

Issue of the periodical within the volume

11

Country of publishing house

GB - UNITED KINGDOM

Number of pages

9

Pages from-to

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UT code for WoS article

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EID of the result in the Scopus database

2-s2.0-84999808932