1 / 5

EPIC MOS Life Test Facility

EPIC MOS Life Test Facility. The centre of the central CCD in the MOS cameras is showing damage – Andy Read et al. This damage causes low energy redistribution changes

reid
Download Presentation

EPIC MOS Life Test Facility

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. EPIC MOS Life Test Facility • The centre of the central CCD in the MOS cameras is showing damage – Andy Read et al. • This damage causes low energy redistribution changes • Enhanced dark current at raised temperatures has been seen in CCDs illuminated with a focussed beam at the Panter facility (EPIC EOBB and Swift XRT) • Have so far not been able to detect the low energy redistribution in these devices • Need to replicate conditions in orbit – possibly by keeping device cold over an extended period • Need to focus X-rays onto one spot for months at a time and regularly calibrate on and off spot • We are producing at Leicester a dedicated facility based on an existing test facility with X-ray source and focussing with a micro-channel plate optic • A vacuum bellows arrangement allows accurate focussing • The optic can be remotely moved out of the beam for flat field calibration

  2. X-Ray Beam Test of MCP

  3. Cut through PSF

  4. Facility pictures

  5. Camera and Electronics

More Related