Imaging X-ray Polarimeter for Solar Flares (IXPS)

被引：2

作者：

Hosack, Michael ^{[1
,2
]}

Black, J. Kevin ^{[3
]}

Deines-Jones, Philip ^{[1
]}

Dennis, Brian R. ^{[1
]}

Hill, Joanne E. ^{[1
,4
]}

Jahoda, Keith ^{[1
]}

Shih, Albert Y. ^{[1
]}

Urba, Christian E. ^{[4
]}

Emslie, A. Gordon ^{[5
]}

机构：

[1] NASA, Goddard Space Flight Ctr, Greenbelt, MD 20771 USA

[2] ADNET Syst Inc, Rockville, MD 20852 USA

[3] Rock Creek Sci, Silver Spring, MD 20910 USA

[4] CRESST Univ Space Res Assoc, Columbia, MD 21044 USA

[5] Western Kentucky Univ, Dept Phys & Astron, Bowling Green, KY 42101 USA

来源：

EXPERIMENTAL ASTRONOMY | 2011年 / 32卷 / 02期

关键词：

Solar flare; X-ray polarimetry; Particle tracking; GEM; TPC; NEGATIVE-ION DRIFT; 2002; JULY; 23; POLARIZATION MEASUREMENTS; CRAB-NEBULA; PROPORTIONAL-COUNTERS; RHESSI; BREMSSTRAHLUNG; EMISSION; DIRECTIVITY; ELECTRONS;

D O I：

10.1007/s10686-011-9254-1

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We describe the design of a balloon-borne Imaging X-ray Polarimeter for Solar flares (IXPS). This novel instrument, a Time Projection Chamber (TPC) for photoelectric polarimetry, will be capable of measuring polarization at the few percent level in the 20-50 keV energy range during an M-or X-class flare, and will provide imaging information at the similar to 10 arcsec level. The primary objective of such observations is to determine the directivity of nonthermal high-energy electrons producing solar hard X-rays, and hence to learn about the particle acceleration and energy release processes in solar flares. Secondary objectives include the separation of the thermal and nonthermal components of the flare X-ray emissions and the separation of photospheric albedo fluxes from direct emissions.

引用

页码：101 / 125

页数：25

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