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A Transmissive X-ray Polarimeter Design For Hard X-ray Focusing Telescopes
Dong YW(董永伟); Lu FJ(卢方军); Zhang SN(张双南); Li; H; Feng; H; Ji; JF; Deng; Z; He; L; Zeng; M; Li; TL; Liu; YN; Heng; PY; Wu; Q; Han; D; Dong; YW; Lu; FJ; Zhang; SN
Source PublicationProceedings of SPIE
SubtypeProceedings Paper
AbstractThe X-ray Timing and Polarization (XTP) is a mission concept for a future space borne X-ray observatory and is currently selected for early phase study. We present a new design of X-ray polarimeter based on the time projection gas chamber. The polarimeter, placed above the focal plane, has an additional rear window that allows hard X-rays to penetrate (a transmission of nearly 80% at 6 keV) through it and reach the detector on the focal plane. Such a design is to compensate the low detection efficiency of gas detectors, at a low cost of sensitivity, and can maximize the science return of multilayer hard X-ray telescopes without the risk of moving focal plane instruments. The sensitivity in terms of minimum detectable polarization, based on current instrument configuration, is expected to be 3% for a 1mCrab source given an observing time of 10(5) s. We present preliminary test results, including photoelectron tracks and modulation curves, using a test chamber and polarized X-ray sources in the lab.
KeywordX-ray polarimeter Gas Detector Time Projection Chamber XTP Space Astronomy
Subject AreaAstronomy & Astrophysics; Instruments & Instrumentation; Optics
Indexed ByEI ; ADS ; CPCI
WOS Research AreaAstronomy & Astrophysics ; Instruments & Instrumentation ; Optics
WOS SubjectAstronomy & Astrophysics ; Instruments & Instrumentation ; Optics
WOS IDWOS:000366016700022
ADS Bibcode2015SPIE.9601E..0VL
ADS URLhttps://ui.adsabs.harvard.edu/abs/2015SPIE.9601E..0VL
ADS CITATIONShttps://ui.adsabs.harvard.edu/abs/2015SPIE.9601E..0VL/citations
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Cited Times:0 [ADS]
Document Type期刊论文
Recommended Citation
GB/T 7714
Dong YW,Lu FJ,Zhang SN,et al. A Transmissive X-ray Polarimeter Design For Hard X-ray Focusing Telescopes[J]. Proceedings of SPIE,2015,9601:96010V.
APA 董永伟.,卢方军.,张双南.,Li.,H.,...&SN.(2015).A Transmissive X-ray Polarimeter Design For Hard X-ray Focusing Telescopes.Proceedings of SPIE,9601,96010V.
MLA 董永伟,et al."A Transmissive X-ray Polarimeter Design For Hard X-ray Focusing Telescopes".Proceedings of SPIE 9601(2015):96010V.
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