The ART-XC instrument on board the SRG Mission

Pavlinsky, M.; Akimov, V. V.; Levin, V.; Lapshov, I.; Tkachenko, A.; Semena, N.; Buntov, M.; Glushenko, A.; Arefiev, V.; Yaskovich, A.; Sunyaev, R.; Churazov, E.; Sazonov, S.; Revnivtsev, M.; Lutovinov, A.; Molkov, S.; Kudelin, M.; Garanin, S. G.; Grigorovich, S.; Litvin, D.; Lazarchuk, V. P.; Roiz, I.; Garín, M.; Babyshkin, V.; Lomakin, I.; Menderov, A.; Moskvinov, D.; Gubarev, Mikhail V.; Ramsey, Brian D.; Kilaru, Kiranmayee; O’Dell, Stephen L.; Elsner, Ronald F.

doi:10.1117/12.925376

Cited by 9 publications

(7 citation statements)

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“…Observatory will be placed in the L2 point in Sun -Earth system. Observatory's scientific payload consists of a pair of X-ray mirror instruments -eROSITA telescope (mass 800 kg, energy range 0.3 -10 keV) and ART-XC (mass 350 kg, 6 -30 keV) [1][2][3] which will allow to execute the most sensitive all sky survey in the 0.5 -11 keV energy range. eROSITA telescope, which is the major observatory instrument, is being developed in Max Planck Institute for extraterrestrial Physics (MPE) in Germany.…”

Section: Object Of the Test And Testing Problem Statementmentioning

confidence: 99%

ART-XC/SRG: results of thermo-vacuum tests

Semena¹,

Pavlinsky²,

Buntov³

et al. 2014

SPIE Proceedings

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ART-XC -a medium-x-ray-energy survey instrument for SRG project is being developed in Russia. Space Research institute (IKI) and Federal Nuclear Center (VNIIEF) has developed and tested the STM (Structural and Thermal Model) of ART-XC/SRG Instrument. The STM was tested in a 40 m 3 vacuum chamber, equipped with black cryogenic screens, cooled by liquid nitrogen. During the tests various thermal telescope modes were simulated. In particular we have simulated emergency mode, when mirrors heaters were switched-off. During the tests temperature of instrument's structure was controlled by 64 independent sensors. Stability of optical axis of mirror systems was also measured. STM test has shown that temperature of mirror system was lower than required, temperature of detectors met the requirements. The test also confirmed geometrical stability of the carbon fiber housing despite of significant temperature gradients. Additional experiments with two mirror systems, each containing a full set of simple nickel shells, were performed. In these experiments we have measured longitudinal and transverse temperature gradients of mirror systems. Next thermovacuum tests of the qualification model of the ART-XC instrument are being prepared. Results of STM tests are presented in this paper.

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Section: Object Of the Test And Testing Problem Statementmentioning

confidence: 99%

ART-XC/SRG: results of thermo-vacuum tests

Semena¹,

Pavlinsky²,

Buntov³

et al. 2014

SPIE Proceedings

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“…The observatory will be launchedinto an orbit around L2 from Baikonur/Kazakhstanwith a Zenith rocket. The payload consists of the X-ray instruments eROSITA (extended Roentgen Survey with an Imaging Telescope Array,) see [1]and ART-XC (Astronomical Roentgen Telescope / X-ray Concentrator) see [2].The seven eROSITA telescopes are extended versions of the existing design launched on theABRIXAS mission plus an advanced version of the pn-CCD camera successfully flyingon XMM-Newton. Compared with ABRIXAS, theeffective area is increased by a factor of five, the angular resolution is improved by afactor of two, and the field of view is also increased by a factor of two ( Figure 2).A summary of the eROSITA instrument parameters is given in Table 1 below.…”

Section: Introductionmentioning

confidence: 99%

“…The telescopes are conical approximations of the Wolter-Igeometry with CdTe detectors in their focal planes [2].…”

Section: Introductionmentioning

confidence: 99%

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Status of the eROSITA Telescope testing and calibrating the x-ray mirror assemblies

et al. 2013

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“…1 The main parts of ART-XC telescope are seven mirror systems and seven focal plane detectors. X-ray optics is manufactured by the NASA Marshall Space Flight Center (MSFC).…”

Section: Introductionmentioning

confidence: 99%

ART-XC/SRG: status of the x-ray focal plane detector development

Levin¹,

Pavlinsky²,

Akimov³

et al. 2014

SPIE Proceedings

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The Russian Space Research Institute (IKI) has developed CdTe detectors for the focal plane of the ART-XC/SRG instrument. The CdTe crystal has dimensions about 30 × 30 × 1 mm. Top and bottom sides of the detector each contain 48 strips and a guard ring. The ASIC VA64TA1 is connected to the CdTe crystal by AC-coupling for both DSSD sides. This approach allows one to have the same ground level for both electronic parts and to operate detectors with different leakage currents without reconfiguration of the VA64TA1 chips. One CdTe crystal and two ASICs are integrated with thermal sensors and Peltier cooler in a big hybrid integrated circuit. This detector is hermetically sealed by a cover with beryllium window. For ground testing the detector volume is filled with dry nitrogen. Peltier cooler is used during ground tests only. Together with the hermetic case package it allows us to operate the detector at low temperature during all ART-XC telescope development tests. When in space, the detector cooling will be provided by a radiator and heat pipes. Polarization rate temperature and voltage dependences as well as splitting charges between electrodes are being studied. IKI manufactured dozen X-ray cameras with detectors and supporting electronics for EM, QM and flight model of the ART-XC telescope. Spectroscopic and imaging performances of the detectors were tested on the IKI's X-Ray Calibration Facility. Current status of the focal plane detector development and testing will be presented.

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The ART-XC instrument on board the SRG Mission

Cited by 9 publications

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ART-XC/SRG: results of thermo-vacuum tests

ART-XC/SRG: results of thermo-vacuum tests

Status of the eROSITA Telescope testing and calibrating the x-ray mirror assemblies

ART-XC/SRG: status of the x-ray focal plane detector development

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