Active Collimator Installation Pictures

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Revision as of 20:03, 23 October 2014 by Barnes (talk | contribs) (→‎Assembly)
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Active Collimator

The active collimator has been delivered to JLab by John Bartolotta. As of July 1, 2014 Alex Barnes is in charge of the assembly, testing, installation and analysis of the active collimator.

Assembly

Components

  • Screws
    • brass
    • round-headed
    • 4-40 type
    • 3/4 inch long
  • Nuts
    • brass
    • 4-40 type
    • 1/4 inch
  • Drill bit used to drill out screw head
    • 1/32 inch drill bit
    • ream out the hole after using the drill bit to give it a taper
    • the process is trial and error; drill and mount the RF connector until satisfied
    • test connection by measuring the resistance from the RF signal connector to the screw

Pictures

Below are pictures of the assembling process

Installation

The active collimator has been installed in the collimator cave in Hall D. A shielding box was constructed out of plexi and placed above the active collimator.