Difference between revisions of "Qweak Installation"
Jump to navigation
Jump to search
| Line 10: | Line 10: | ||
;Alignment Tolerance: | ;Alignment Tolerance: | ||
:The accuracy of an object relative some other known object. | :The accuracy of an object relative some other known object. | ||
| + | |||
| + | ;"Would like to" | ||
| + | : desired '''alignment''' accuracy | ||
| + | |||
| + | ;"Must have" | ||
| + | : Required '''alignment''' accuracy | ||
| + | |||
| + | ;"Known to" | ||
| + | : desired''' survey''' accuracy | ||
= Tolorances= | = Tolorances= | ||
Revision as of 19:16, 7 May 2008
Information for installing the R1 chambers into Hall C
Target Date
Definitions
- Survey tolorance
- The accuracy in the absolute location of an object
- Alignment Tolerance
- The accuracy of an object relative some other known object.
- "Would like to"
- desired alignment accuracy
- "Must have"
- Required alignment accuracy
- "Known to"
- desired survey accuracy
Tolorances
The charge collector strips are less than 0.4 mm wide. But the concentric strip can give you a direct measurements of the angle if they are properly alignment with the beam line.
| Coordinate | "Would like to" | "Must have" | Known to |
| (mm) | (mm) | (mm) | |
| X | 0.2 | 0.4 | |
| Y | 0.2 | 0.4 | |
| Z | 10 | 1 | |
| Yaw(about Y) | |||
| Pitch (about X) | |||
| Roll(about Z) |