Performance of a photon counting microchannel plate intensifier with wedge and strip image readout

Conference · Wed Aug 26 04:00:00 EDT 1987

OSTI ID:5522813

Siegmund, O H.W.; Hailey, C J; Lupton, J H; Stewart, R E

We have developed a 40mm aperture sealed tube imaging detector for photon counting applications in astronomy and atomic physics. The device has a fiber optic input window with a semitransparent bialkali photocathode deposited on its inner surface. The photocathode is proximity focussed to a stack of three microchannel plates (MCP's), each having an 80:1 channel length to diameter ratio, placed in a back to back (Z) configuration. The signal levels on the wedge and strip electrodes of the readout anode, behind the MCP stack, are linearly proportional to single photon event X and Y positions. The event positions are deduced by direct digitization of the individual wedge, strip and zig-zag amplified signals, followed by calculation of the X and Y positions in software. 5 refs., 8 figs.

• Research Organization: Lawrence Livermore National Lab., CA (USA); California Univ., Berkeley (USA). Space Sciences Lab.; KMS Fusion, Inc., Ann Arbor, MI (USA)
• DOE Contract Number: W-7405-ENG-48
• OSTI ID: 5522813
• Report Number(s): UCRL-96412; CONF-8709139-2; ON: DE88003831
• Country of Publication: United States
• Language: English

Related Subjects

440300* -- Miscellaneous Instruments-- (-1989)
47 OTHER INSTRUMENTATION
CATHODES
COUNTING TECHNIQUES
EFFICIENCY
ELECTRODES
ELECTRON MULTIPLIERS
ELECTRON TUBES
ELEMENTARY PARTICLES
FIBER OPTICS
IMAGE INTENSIFIERS
IMAGE TUBES
MASSLESS PARTICLES
MICROCHANNEL ELECTRON MULTIPLIERS
PERFORMANCE
PHOTOCATHODES
PHOTONS
QUANTUM EFFICIENCY
RESOLUTION
SPATIAL RESOLUTION