Analysis of a chemical method to increase extreme-ultraviolet microchannel-plate quantum efficiency

Richelieu Hemphill; Jerry Edelstein

doi:10.1117/12.459778

24 February 2003 Analysis of a chemical method to increase extreme ultraviolet microchannel-plate quantum efficiency

Richelieu Hemphill, Jerry Edelstein

Proceedings Volume 4854, Future EUV/UV and Visible Space Astrophysics Missions and Instrumentation; (2003) https://doi.org/10.1117/12.459778
Event: Astronomical Telescopes and Instrumentation, 2002, Waikoloa, Hawai'i, United States

Abstract

Physical surface changes due to a wet chemical method to increase the extreme ultraviolet (EUV) quantum detection efficiency (QDE) of microchannel plate (MCP) detectors is examined. We show evidence that enhanced channel surface roughness and the creation of a low density surface layer combine to increase the secondary electron emission coefficient, which inturn, increases the quantum detection efficiency of the input MCP. The use of the wet chemical method to enhance the MCP EUV QDE by five different space flight programs is also discussed.

Citation Download Citation

Richelieu Hemphill and Jerry Edelstein "Analysis of a chemical method to increase extreme ultraviolet microchannel-plate quantum efficiency", Proc. SPIE 4854, Future EUV/UV and Visible Space Astrophysics Missions and Instrumentation, (24 February 2003); https://doi.org/10.1117/12.459778

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available