TY - GEN
T1 - High-resolution, two-dimensional imaging, microchannel-plate detector for use on a sounding rocket experiment
AU - Bush, Brett C.
AU - Cotton, Daniel M.
AU - Siegmund, Oswald H.W.
AU - Chakrabarti, Supriya
AU - Harris, Walter M.
AU - Clarke, John T.
N1 - Funding Information:
This paper was funded by NASA grant NAG5-660.
Publisher Copyright:
© 1991 SPIE.
PY - 1991/10/1
Y1 - 1991/10/1
N2 - We discuss a high resolution microchannel plate (MCP) imaging detector to be used in measurements of Doppler-shifted hydrogen Lyman-alpha line emission from Jupiter and the interplanetary medium. The detector is housed in a vacuum-tight stainless steel cylinder (to provide shielding from magnetic fields) with a MgF2 window. Operating at nominal voltage, the four plate configuration provides a gain of 1.2 x 10 exp 7 electrons per incident photon. The wedge-and-strip anode has two-dimensional imaging capabilities, with a resolution of 40 microns FWHM over a one centimeter diameter area. The detector has a high quantum efficiency while retaining a low background rate. A KBr photocathode is used to enhance the quantum efficiency of the bare MCPs to a value of 35 percent at Lyman-alpha.
AB - We discuss a high resolution microchannel plate (MCP) imaging detector to be used in measurements of Doppler-shifted hydrogen Lyman-alpha line emission from Jupiter and the interplanetary medium. The detector is housed in a vacuum-tight stainless steel cylinder (to provide shielding from magnetic fields) with a MgF2 window. Operating at nominal voltage, the four plate configuration provides a gain of 1.2 x 10 exp 7 electrons per incident photon. The wedge-and-strip anode has two-dimensional imaging capabilities, with a resolution of 40 microns FWHM over a one centimeter diameter area. The detector has a high quantum efficiency while retaining a low background rate. A KBr photocathode is used to enhance the quantum efficiency of the bare MCPs to a value of 35 percent at Lyman-alpha.
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U2 - 10.1117/12.48347
DO - 10.1117/12.48347
M3 - Conference contribution
AN - SCOPUS:84920358985
T3 - Proceedings of SPIE - The International Society for Optical Engineering
SP - 290
EP - 301
BT - EUV, X-Ray, and Gamma-Ray Instrumentation for Astronomy II
A2 - Siegmund, Oswald H. W.
A2 - Rothschild, Richard E.
PB - SPIE
T2 - EUV, X-Ray, and Gamma-Ray Instrumentation for Astronomy II
Y2 - 21 July 1991 through 21 July 1991
ER -