Active Collimator Installation Pictures

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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

Below are pictures of the assembling process

  • A machined screw for the RF connector.

  • The back of the active collimator with only 4 installed wedges.

  • This is another view of the back of the active collimator with only 4 wedges installed.

  • The active collimator with only 4 wedges installed. This was taken on the bench at JLab.

  • The spare wedges provided by FSU.

  • The fifth wedge has been installed.

  • Closer shot of the fifth wedge. Notice how the wedge covers the hole slightly. This was noticed and fixed during the assembly process.

  • The sixth wedge has been installed in the active collimator.

  • The inner wedges have been adjusted to prevent blockage of the central hole.

  • The seventh wedge of the collimator has been installed.

  • All wedges have been installed in the active collimator.

  • A closer view of all eight wedges of the active collimator.

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.

  • Active collimator preamps mounted and cabled inside of the plexi shielding.

  • An overhead view of the active collimator preamps inside the shield box.

  • Active collimator installed and cabled.

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