View source for Beamline, Radiator and Dump

= '''Documentation''' =
* ''Injector Quick Reference'' [[media:injector_quick_reference.pdf]]



= ''' Drawings''' =

* The electron beam hitting the radiator will be roughly 0.2 mm diameter. We will allow for 5 mm diameter sweet spot. Using beam position monitors we will know the beam position on the radiator to about 1 mm.

* This 5 mm diameter and a 10 mm diameter in the center of the bubble chamber will define a cone. This way we can determine the size of the holes in the collimator. This cone extend all the way to the photon dump.

* The table where the radiator and collimator sit will be made of Al and the frame that hold the collimator will be made of Al, too. 



-----

[[file:Bubble_Beamline_elev_1.jpg]]

-----

[[file:Bubble_Beamline_elev_2.jpg]]

-----

[[file:Bubble_Cu_radiator.jpg]]

-----



* Cu Radiator: [[media:Bubble_Cu_Radiator.pdf]]
* Cu Collimator: [[media:Bubble_Cu_Collimator.pdf]]
* Al Photon Dump: [[media:Al_Photon_Dump.pdf]]


* Questions:

# Is the assumption about the cone fine. Do want the 10 mm diameter be at the center of the bubble chamber or at the end of the chamber entrance collimator.
# Is the 5mm diameter what we want to use?
# Is the size of the photon dump reasonable? Do we need the hole in the photon dump or we can be fine with just a block of Al. Does this whole service any purpose? I thought of it to try to contain any back scattered electrons. Can Argonne make the photon dump?