ChemiX: a Bragg crystal spectrometer for the Interhelioprobe interplanetary mission

Siarkowski, M.; Sylwester, J.; Bakala, Jaroslaw; Szaforz, Żaneta; Kowaliński, Mirosław; Kordylewski, Z.; Plocieniak, Stefan; Pоdgórski, P.; Sylwester, B.; Trzebinski, Witold; Stȩślicki, M.; Phillips, K. J. H.; Dudnik, O. V.; Kurbatov, E.; Кузнецов, В. Д.; Kuzin, S. V.; Zimovets, I. V.

doi:10.1007/s10686-016-9491-4

Cited by 9 publications

(12 citation statements)

References 39 publications

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“…On both IHP spacecraft, Polish-led Bragg bent crystal spectrometer ChemiX (Siarkowski et al, 2016) will be placed. This spectrometer will observe active region and flaring plasma in the spectral range 1.5-9Å using 10 monocrystal wafers bent cylindrically, which allow a factor 10 improvement in the spectral resolution over RESIK.…”

Section: Interhelioprobementioning

confidence: 99%

Nonequilibrium Processes in the Solar Corona, Transition Region, Flares, and Solar Wind (Invited Review)

et al. 2017

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We review the presence and signatures of the non-equilibrium processes, both non-Maxwellian distributions and non-equilibrium ionization, in the solar transition region, corona, solar wind, and flares. Basic properties of the non-Maxwellian distributions are described together with their influence on the heat flux as well as on the rates of individual collisional processes and the resulting optically thin synthetic spectra. Constraints on the presence of highenergy electrons from observations are reviewed, including positive detection of non-Maxwellian distributions in the solar corona, transition region, flares, and wind. Occurrence of non-equilibrium ionization is reviewed as well, especially in connection to hydrodynamic and generalized collisional-radiative modelling. Predicted spectroscopic signatures of non-equilibrium ionization depending on the assumed plasma conditions are summarized. Finally, we discuss the future remote-sensing instrumentation that can be used for detection of these non-equilibrium phenomena in various spectral ranges.

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Section: Interhelioprobementioning

confidence: 99%

Nonequilibrium Processes in the Solar Corona, Transition Region, Flares, and Solar Wind (Invited Review)

et al. 2017

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“…The "dopplerometer" design resolves this ambiguity by using two identical crystals, but with opposite angles of incidence. Planeof-sky motions will be in the same direction in both spectra, but Doppler motions will be in the opposite direction-see Figure 3 of Siarkowski et al (2016).…”

Section: Crystal Spectrometersmentioning

confidence: 99%

“…They have been flown on SMM (Culhane et al, 1981), Yohkoh (Culhane et al, 1991), and CORONAS-F (Sylwester et al, 2005). The ChemiX instrument (Siarkowski et al, 2016) on Interhelioprobe will use bent crystals in two modes. One is a standard configuration with four spectral channels that combined give spectral coverage over 1.5-8.8 Å.…”

Section: Crystal Spectrometersmentioning

confidence: 99%

Future Prospects for Solar EUV and Soft X-Ray Spectroscopy Missions

Young

2021

Front. Astron. Space Sci.

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Future prospects for solar spectroscopy missions operating in the extreme ultraviolet (EUV) and soft X-ray (SXR) wavelength ranges, 1.2–1,600 Å, are discussed. NASA is the major funder of Solar Physics missions, and brief summaries of the opportunities for mission development under NASA are given. Upcoming major solar missions from other nations are also described. The methods of observing the Sun in the two wavelength ranges are summarized with a discussion of spectrometer types, imaging techniques and detector options. The major spectral features in the EUV and SXR regions are identified, and then the upcoming instruments and concepts are summarized. The instruments range from large spectrometers on dedicated missions, to tiny, low-cost CubeSats launched through rideshare opportunities.

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“…This resolution is better than the instrumental spectral resolution of ∼340 µÅ which in turn is much less than characteristic thermal/turbulent width of emission lines. The crystal-detector unit geometry was evaluated using a method developed first for ChemiX instrument decribed in details in Appendix A of [18].…”

Section: Solar Radiationmentioning

confidence: 99%

“…Using properties of filters and respective geometrical characteristics of crystal-detector units, the signal to be collected over a single data gather interval (DGI) can be calculated according to the formula introduced in [18]. The example of the spectrum to be measured for the M5.0 flare is given in Fig.…”

Section: Solar Radiationmentioning

confidence: 99%

The soft X-ray spectrometer polarimeter SolpeX

et al. 2019

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We present a novel X-ray assembly of functionally related instrument blocks intended to measure solar flare and active region (AR) spectra from within the Russian instrument complex KORTES, to be mounted aboard the International Space Station (ISS). SolpeX consists of three blocks: fast-rotating multiple flat crystal Bragg spectrometer, pin-hole X-ray spectral imager and Bragg polarimeter. This combination of measuring blocks will offer an opportunity to detect/measure possible X-ray polarization in soft X-ray emission lines/continuum and record spectra of solar flares, in particular during their impulsive phases. Polarized Bremsstrahlung and line emission may arise from presence of directed particle beams colliding with denser regions of flares. As a result of evaporation, the X-ray spectral-components are expected to be Doppler shifted, which will also be measured.In this paper, we present details of the construction of three SolpeX blocks and discuss their functionality. Delivery of KORTES with SolpeX to ISS is expected in 2020/2021.

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ChemiX: a Bragg crystal spectrometer for the Interhelioprobe interplanetary mission

Cited by 9 publications

References 39 publications

Nonequilibrium Processes in the Solar Corona, Transition Region, Flares, and Solar Wind (Invited Review)

Nonequilibrium Processes in the Solar Corona, Transition Region, Flares, and Solar Wind (Invited Review)

Future Prospects for Solar EUV and Soft X-Ray Spectroscopy Missions

The soft X-ray spectrometer polarimeter SolpeX

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