The Marshall Space Flight Center development of mirror modules for the ART-XC instrument aboard the Spectrum-Roentgen-Gamma mission

Gubarev, Mikhail V.; Ramsey, Brian D.; ODell, S. L.; Elsner, Ronald F.; Kilaru, Kiranmayee; McCracken, Jeff; Pavlinsky, M.; Tkachenko, A.; Lapshov, I.

doi:10.1117/12.926207

Cited by 20 publications

(10 citation statements)

References 6 publications

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“…MSFC has expanded its capability to accommodate the increased workload and aggressive production schedule of the ART mirror module development 5 . Five polishing stations were assembled to ensure completion of the 28 ART mandrels on schedule.…”

Section: Art-xc Mirror Modulesmentioning

confidence: 99%

Development of mirror modules for the ART-XC instrument aboard the Spectrum-Roentgen-Gamma mission

et al. 2013

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Section: Art-xc Mirror Modulesmentioning

confidence: 99%

Development of mirror modules for the ART-XC instrument aboard the Spectrum-Roentgen-Gamma mission

et al. 2013

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“…Perform the correction with the mask/slit remaining stationary and the optic translating across the mask/slit. 4. Metrology to determine the improvement of the surface after correction and assess whether high spatial frequencies should be removed with narrower slits.…”

Section: Differential Depositionmentioning

confidence: 99%

X-ray optic developments at NASA's MSFC

et al. 2013

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NASA's Marshall Space Flight Center (MSFC) has a successful history of fabricating optics for astronomical x-ray telescopes. In recent years optics have been created using electroforming replication for missions such as the balloon payload HERO (High energy replicated optics) and the rocket payload FOXSI (Focusing Optics x-ray Solar Imager). The same replication process is currently being used in the creation seven x-ray mirror modules (one module comprising of 28 nested shells) for the Russian ART-XC (Astronomical Rontgen Telescope) instrument aboard the Spectrum-Roentgen-Gamma mission and for large-diameter mirror shells for the Micro-X rocket payload.In addition to MSFC's optics fabrication, there are also several areas of research and development to create the high resolution light weight optics which are required by future x-ray telescopes. Differential deposition is one technique which aims to improve the angular resolution of lightweight optics through depositing a filler material to smooth out fabrication imperfections. Following on from proof of concept studies, two new purpose built coating chambers are being assembled to apply this deposition technique to astronomical x-ray optics. Furthermore, MSFC aims to broaden its optics fabrication through the recent acquisition of a Zeeko IRP 600 robotic polishing machine. This paper will provide a summary of the current missions and research and development being undertaken at NASA's MSFC.

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“…Four flight modules were produced under an International Reimbursable Agreement between NASA and the Space Research Institute (IKI) in Moscow, Russia, and three flight modules and one spare unit were fabricated under a Cooperative Agreement between NASA and IKI. The details of the mirror design and development can be found in [3,4,5]. Each module consists of 28 concentrically nested (two-reflection) grazing-incidence mirrors made of an electroformed nickel-cobalt alloy and mounted on a single spider through combs glued onto the spider legs.…”

Section: Art-xc Mirror Modulesmentioning

confidence: 99%

Calibration of the ART-XC mirror modules at MSFC

Krivonos¹,

Tkachenko²,

Burenin³

et al. 2017

Exp Astron

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The Astronomical Roentgen Telescope X-ray Concentrator (ART-XC) is a hard X-ray telescope with energy response up to 30 keV, to be launched on board the Spectrum Roentgen Gamma (SRG) spacecraft in 2018. ART-XC consists of seven identical co-aligned mirror modules. Each mirror assembly is coupled with a CdTe double-sided strip (DSS) focal-plane detector. Eight X-ray mirror modules (seven flight and one spare units) for ART-XC were developed and fabricated at the Marshall Space Flight Center (MSFC), NASA, USA. We present results of testing procedures performed with an X-ray beam facility at MSFC to calibrate the point spread function (PSF) of the mirror modules. The shape of the PSF was measured with a high-resolution CCD camera installed in the focal plane with defocusing of 7 mm, as required by the ART-XC design. For each module, we performed a parametrization of the PSF at various angular distances Theta. We used a King function to approximate the radial profile of the near on-axis PSF (Theta<9 arcmin) and an ellipse fitting procedure to describe the morphology of the far off-axis angular response (9

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The Marshall Space Flight Center development of mirror modules for the ART-XC instrument aboard the Spectrum-Roentgen-Gamma mission

Cited by 20 publications

References 6 publications

Development of mirror modules for the ART-XC instrument aboard the Spectrum-Roentgen-Gamma mission

Development of mirror modules for the ART-XC instrument aboard the Spectrum-Roentgen-Gamma mission

X-ray optic developments at NASA's MSFC

Calibration of the ART-XC mirror modules at MSFC

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