Difference between revisions of "10-30-08 GEM HRRL Photon Runs"

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[[Image:10-30-08_14MeV36mAHRRL_GEM_strip8.png | 200 px]]
 
[[Image:10-30-08_14MeV36mAHRRL_GEM_strip8.png | 200 px]]
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The scope trace below shows output when electron beam current is  9 mA.
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[[Image:10-30-08_14MeV9mAHRRL_GEM_strip8.png | 200 px]]

Revision as of 22:39, 30 October 2008

14 MeV photons

We are sending 14 MeV phtoton through a 4" thick brick wall collimator. A 4" Al brick in front of the HRRL exit port is used as a FC.

Vdrift= 3700 Volt

VGem=3400 IGem=815 microA

The scope trace below shows output when electron beam current is 18 mA.

10-30-08 18mAHRRL GEM strip8.png

The scope trace below shows output when electron beam current is 36 mA.

10-30-08 14MeV36mAHRRL GEM strip8.png

The scope trace below shows output when electron beam current is 9 mA.

10-30-08 14MeV9mAHRRL GEM strip8.png