Contamination control for the space infrared observatory SPICA

Isobe, Naoki; Okazaki, Shun; Sato, Yoichi; Ando, Makiko; Baba, Susumu; Miura, Yuka; Miyazaki, Eigo; Kimoto, Yugo; Ishizawa, Junichiro; Tani, Hiroumi; Maruyama, Kazuo; Urayama, Fumitaka; Mori, Akihito

doi:10.1117/12.2056009

Cited by 2 publications

(1 citation statement)

References 4 publications

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“…Along with these major risks, we also carried out detailed study of contamination control, which is discussed by Isobe et al 5 As a result of the RMP activity, the "major technical risks" are significantly mitigated, and SPICA now has much higher technical feasibility than that before the start of RMP.…”

Section: Original Planmentioning

confidence: 99%

The next-generation infrared astronomy mission SPICA under the new framework

et al. 2014

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We present the current status of SPICA (Space Infrared Telescope for Cosmology and Astrophysics), which is a mission optimized for mid-and far-infrared astronomy with a cryogenically cooled 3.2 m telescope. SPICA is expected to achieve high spatial resolution and unprecedented sensitivity in the mid-and far-infrared, which will enable us to address a number of key problems in present-day astronomy, ranging from the star-formation history of the universe to the formation of planets. We have carried out the "Risk Mitigation Phase" activity, in which key technologies essential to the realization of the mission have been extensively developed. Consequently, technical risks for the success of the mission have been significantly mitigated. Along with these technical activities, the international collaboration framework of SPICA had been revisited, which resulted in maintenance of SPICA as a JAXA-led mission as in the original plan but with larger contribution of ESA than that in the original plan. To enable the ESA participation, a SPICA proposal to ESA is under consideration as a medium-class mission under the framework of the ESA Cosmic Vision. The target launch year of SPICA under the new framework is FY2025.

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Section: Original Planmentioning

confidence: 99%

The next-generation infrared astronomy mission SPICA under the new framework

et al. 2014

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Simulation and Analysis of the Influence of Sounding Rocket Outgassing on In-Situ Atmospheric Detection

Zhang

Sun

et al. 2023

Atmosphere

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The Meridian Project’s sounding rocket mission uses a mass spectrometer to conduct in-situ atmospheric detection. In order to assess the influence of surface material outgassing and the attitude control jet on the spectrometer’s detection, a sounding rocket platform was modeled and simulated. Using the physical field simulation software COMSOL and the Monte Carlo method, this study investigated whether the gas molecules from the two cases could enter the in-situ atmospheric mass spectrometer’s sensor sampling port after colliding with the background atmosphere. The simulation results show that the influence of surface material outgassing on the in-situ atmospheric detection is very small, even under the conditions of medium solar activity and medium geomagnetic activity, while the influence of the attitude control jet on the in-situ atmospheric detection is large but can be reduced by reducing the low-altitude attitude control operation and decreasing the transmission probability. Through simulation optimization and according to engineering needs, increasing the nozzle outlet cross-sectional area, increasing the temperature of the gas used for attitude control, increasing the nozzle rotation angle, increasing the nozzle outlet angle, or increasing the nozzle center height can reduce the transmission probability. This model can simulate and analyze the influence of both surface material outgassing and attitude control jets on in-situ atmospheric detection, optimize relevant parameters, and provide new ideas for relevant work.

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Contamination control for the space infrared observatory SPICA

Cited by 2 publications

References 4 publications

The next-generation infrared astronomy mission SPICA under the new framework

The next-generation infrared astronomy mission SPICA under the new framework

Simulation and Analysis of the Influence of Sounding Rocket Outgassing on In-Situ Atmospheric Detection

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