Qweak Installation
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) |