Fine Resolution Epithermal Neutron Detector (FREND) Onboard the ExoMars Trace Gas Orbiter

被引：33

作者：

Mitrofanov, I. ^{[1
]}

Malakhov, A. ^{[1
]}

Bakhtin, B. ^{[1
]}

Golovin, D. ^{[1
]}

Kozyrev, A. ^{[1
]}

Litvak, M. ^{[1
]}

Mokrousov, M. ^{[1
]}

Sanin, A. ^{[1
]}

Tretyakov, V. ^{[1
]}

Vostrukhin, A. ^{[1
]}

Anikin, A. ^{[1
]}

Zelenyi, L. M. ^{[1
]}

Semkova, J. ^{[2
]}

Malchev, S. ^{[2
]}

Tomov, B. ^{[2
]}

Matviichuk, Y. ^{[2
]}

Dimitrov, P. ^{[2
]}

Koleva, R. ^{[2
]}

Dachev, T. ^{[2
]}

Krastev, K. ^{[2
]}

Shvetsov, V. ^{[3
]}

Timoshenko, G. ^{[3
]}

Bobrovnitsky, Y. ^{[4
]}

Tomilina, T. ^{[4
]}

Benghin, V. ^{[5
]}

Shurshakov, V. ^{[5
]}

机构：

[1] Russian Acad Sci, Space Res Inst, Profsoyuznaya St 84-32, Moscow 117997, Russia

[2] Bulgarian Acad Sci, Space Res & Technol Inst, Acad G Bonchev St,Block 1, BU-1113 Sofia, Bulgaria

[3] Joint Inst Nucl Res, Joliot Curie St 6, Dubna 141980, Moscow Region, Russia

[4] Russian Acad Sci, AA Blagonravov Inst Mech Engn, Maly Kharitonyevsky Pereulok 4, Moscow 101990, Russia

[5] Russian Acad Sci, Inst Biomed Problems, Khoroshevskoye Sh 76-a, Moscow 123007, Russia

来源：

SPACE SCIENCE REVIEWS | 2018年 / 214卷 / 05期

基金：

俄罗斯科学基金会;

关键词：

Mars; Water; Hydrogen; Nuclear physics; Cosmic rays; GENERAL-CIRCULATION MODEL; HEND INSTRUMENT ONBOARD; HYDROGEN DISTRIBUTION; MARS; RADIATION; WATER; ICE; DYNAMICS; MISSIONS; DEPTH;

D O I：

10.1007/s11214-018-0522-5

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

ExoMars is a two-launch mission undertaken by Roscosmos and European Space Agency. Trace Gas Orbiter, a satellite part of the 2016 launch carries the Fine Resolution Neutron Detector instrument as part of its payload. The instrument aims at mapping hydrogen content in the upper meter of Martian soil with spatial resolution between 60 and 200 km diameter spot. This resolution is achieved by a collimation module that limits the field of view of the instruments detectors. A dosimetry module that surveys the radiation environment in cruise to Mars and on orbit around it is another part of the instrument. This paper describes the mission and the instrument, its measurement principles and technical characteristics. We perform an initial assessment of our sensitivity and time required to achieve the mission goal. The Martian atmosphere is a parameter that needs to be considered in data analysis of a collimated neutron instrument. This factor is described in a section of this paper. Finally, the first data accumulated during cruise to Mars is presented.

引用

页数：26

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