BLTWG Meeting 1/18/2008
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Revision as of 12:17, 18 January 2008 by Jonesrt (Talk | contribs) (→Tagger Interface Specification)
- Time: 9:00 EST
- Place: EVO and ESNET
- Present:
Agenda
- Review Tim's interface drawings
- Review answers to vendors' questions
- Interface with accelerator
Tagger Interface Specification
- Qradrupole inner clearance: The tagger specification states that the clearance hole through the field region of the tagger quadrupole is of diameter 30 ± 2 mm. This leaves unspecified the inner diameter of the beam pipe. Jay Benesch wrote that:
The quads in the hall D line will have 1.375" OD, 1.25" ID beam pipes. The tagger quad beam pipe should be as close to this as possible.
This is useful guidance. Yang confirms that the field strength of these beamline quads would be sufficient for the tagger quad as well. Adopting that design would make spec'ing the tagger quadrupole very easy. An ID of 1.25" is 31.25 mm, within the specified tolerances. In the tagger simulation, Richard used 30mm for the inner diameter of the vacuum pipe between the radiator and the tagger vacuum box. Tim will communicate with Mark Wiseman and see if there are any drawbacks to our adopting the design of the beamline quadrupoles for the tagger quadrupole.
