Modeling contamination migration on the Chandra X-ray Observatory

O’Dell, Stephen L.; Swartz, Douglas A.; Plucinsky, Paul P.; Freeman, Mark A.; Markevitch, M.; Vikhlinin, A.; Chen, Kenny C.; Giordano, Rino J.; Knollenberg, Perry; Morris, Peter A.; Tran, H. D.; Tice, Neil W.; Anderson, Scot

doi:10.1117/12.619310

Cited by 3 publications

(2 citation statements)

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“…The time evolution of the thickness of the Carbon contamination layer is well fitted with an exponential model [6]. The contamination on the EPIC detectors is, however, much lower than what found on Chandra and Suzaku [7,8].…”

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confidence: 99%

The thin and medium filters of the EPIC camera on-board XMM-Newton: measured performance after more than 15 years of operation

et al. 2016

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confidence: 99%

The thin and medium filters of the EPIC camera on-board XMM-Newton: measured performance after more than 15 years of operation

et al. 2016

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“…Based upon previous experience and extensive ground testing, the ACIS Team and NGST concluded that a bake would be safe for the ACIS. In order to assess the effectiveness of a potential bake out, Project Science developed and utilized software to simulate molecular transport within the Observatory 49 , using a geometrical model developed by NGST (for thermal analysis) and temperatures provided by NGST and LMA (ACIS systems integrator). Because the identity of the primary contaminant remains unknown 50 and temperatures of some critical surfaces are uncertain, we had to simulate contamination migration for a range of volatilities and surface temperatures.…”

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confidence: 99%

The role of project science in the Chandra X-ray Observatory

O’Dell

Weisskopf

2006

SPIE Proceedings

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The Chandra X-ray Observatory, one of NASA's Great Observatories, has an outstanding record of scientific and technical success. This success results from the efforts of a team comprising NASA, its contractors, the Smithsonian Astrophysical Observatory, the instrument groups, and other elements of the scientific community-including the thousands of scientists who utilize this powerful facility for astrophysical research. We discuss the role of NASA Project Science in the formulation, development, calibration, and operation of the Chandra X-ray Observatory. In addition to serving as an interface between the scientific community and the Project, Project Science performed what we term "science systems engineering". This activity encompasses translation of science requirements into technical requirements and assessment of the scientific impact of programmatic and technical trades. We briefly describe several examples of science systems engineering conducted by Chandra Project Science.

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