1,004
edits
Changes
Jump to navigation
Jump to search
mLine 33:
Line 33: + + +
Tagger Microscope Mechanical Design (view source)
Revision as of 00:19, 27 August 2008
, 00:19, 27 August 2008no edit summary
== Adjustment to the Electron Crossing Angle ===
== Adjustment to the Electron Crossing Angle ===
[[Image:ParallelRailingConcept.png|thumb|296px]]
[[Image:FiberModuleMounting.png|frame]]
A simple dynamic parallel railing system was devised to allow flexibility for the electron crossing angle. In the range of useful photon energies (3-12 GeV) the crossing angle (measured from the focal plane) is calculated to change from 8 to 60 degrees. The adjacent figure illustrates a set of "rails" kept apart by beams parallel to electron trajectory. As shown, this allows for properly positioned mounting sites for both ends of the fiber modules.
A simple dynamic parallel railing system was devised to allow flexibility for the electron crossing angle. In the range of useful photon energies (3-12 GeV) the crossing angle (measured from the focal plane) is calculated to change from 8 to 60 degrees. The adjacent figure illustrates a set of "rails" kept apart by beams parallel to electron trajectory. As shown, this allows for properly positioned mounting sites for both ends of the fiber modules.