NLC Laser Wire Systems
Link to the LBBD laser based beam diagnostics collaboration homepage.
The NLC will use "laser wires" at several beam diagnostic stations. Typically a single laser system will be used to drive 4 laser IPs to allow measurement of vertical and horizontal beam parameters.
| System Parameter | Value |
| Laser spot size (RMS) | <1.5um |
| Laser spot focal length | 30um |
| Laser peak power (1psec pulse, multi-bunch) | 10MW |
| Laser peak power (1psec pulse, single bunch) | 1GW |
| Scan rate | Limited by machine pulse rate |
The laser system will be a variant of the "Combined Laser System" or CLS. This will allow measurement of a low current single bunch, or of an entire bunch train. It may be possible to operate the laser with a pulse length as short as 50fsec, allowing temporal measurements.
NLC laser wire components:
| Laser Wire Componets | Cost (estimate) |
| Laser System (CLS) | $609K |
| Laser Wire IP (1 with polarization, 3 without) | $376K |
| Laser Optical Transport System | $50K (guess) |
| Laser Diagnostics | $20K (guess) |
| Degraded electron detector | $25K (guess) |
| Total | $1080K |
Note that this cost estimate is based on the conservative CD1 model.
Page by Josef Frisch frisch@slac.stanford.edu 09/10/2002
Links to: the NLC Home Page, the SLAC and KEK Institutional Home Pages.