Tenfold Speed Accelerator for Resistive Anode Imaging and Optical Anode Alterative

Information

  • NSF Award
  • 9260270
Owner
  • Award Id
    9260270
  • Award Effective Date
    1/1/1993 - 32 years ago
  • Award Expiration Date
    9/30/1993 - 31 years ago
  • Award Amount
    $ 49,982.00
  • Award Instrument
    Standard Grant

Tenfold Speed Accelerator for Resistive Anode Imaging and Optical Anode Alterative

For imaging or position-sensitive detection (particle counting) of low-intensity electron, ion, or photon beams, a common approach is to use a microchannel plate (MCP) intensifier (with an appropriate emissive coating or photocathode if necessary) followed by a position-sensitive anode. Of several possible anode designs, one which has proven to be rugged, inexpensive, and very useful, particularly when timing of individual particle arrivals is important, is the resistive anode encoder (RAE). Present limitations of this device include limited maximum counting rate due to RC delays and electronic processing times, and the need to use high voltage vacuum feedthroughs and breakdown-prone standoff capacitors on the signal leads for in-situ vacuum applications where the anode must be biased to high voltages. A fast new generation of RAE-type detectors will be developed. Proposed new pulse processing electronics, applicable to existing RAE devices as well, should increase the signal rate over that of current detectors by a factor of ten. The new detector would replace the resistive anode with its optical analog, using a scintillating lightguide to convert an electron burst into optical pulses, which can be transmitted over optical fiber signal leads. The advantages include inherent high speed, noise immunity, and non-conducting signal leads that allow the detector to float at high voltage.

  • Program Officer
    Ritchie B. Coryell
  • Min Amd Letter Date
    1/27/1993 - 32 years ago
  • Max Amd Letter Date
    1/27/1993 - 32 years ago
  • ARRA Amount

Institutions

  • Name
    Charles Evans & Associates
  • City
    Redwood City
  • State
    CA
  • Country
    United States
  • Address
    301 Chesapeake Drive
  • Postal Code
    940634723
  • Phone Number
    4153694567

Investigators

  • First Name
    Carl
  • Last Name
    Colvard
  • Email Address
    ccolvard@cea.com
  • Start Date
    1/1/1993 12:00:00 AM

FOA Information

  • Name
    Other Applications NEC
  • Code
    99
  • Name
    Physics
  • Code
    13