Difference between revisions of "10-30-08 GEM HRRL Photon Runs"
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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. | 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 | ||
The scope trace below shows output when electron beam current is 18 mA. | The scope trace below shows output when electron beam current is 18 mA. | ||
[[Image:10-30-08_18mAHRRL_GEM_strip8.png | 200 px]] | [[Image:10-30-08_18mAHRRL_GEM_strip8.png | 200 px]] | ||
Revision as of 22:36, 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
The scope trace below shows output when electron beam current is 18 mA.
