Title :
A laser alignment system for low beta quadrupoles
Author :
Moore, C. ; Jostlein, H.
Author_Institution :
Fermi Nat. Accel. Lab., Batavia, IL, USA
Abstract :
The positions of the low beta quadrupoles in the B0 area of the Fermilab Tevatron were monitored using a laser-based system. Two identical systems were used on either side of the collision point. The essential components of each system included a 2 mWatt helium neon laser, a set of lenses which could be remotely flipped into the laser beam, and a four quadrant silicon photocell detector. A computer system took the data remotely and stored the data in files for chronological comparisons. Mainly due to drifts in the laser, the accuracy of the system was 0.5 mm, but this was sufficient to check for long-term settling of the area around the collision pit.<>
Keywords :
beam handling equipment; laser beam applications; proton accelerators; storage rings; synchrotrons; 2 mW; B0 area; He-Ne laser; Tevatron; laser alignment system; low beta quadrupoles; photocell detector; Calibration; Detectors; Helium; Laboratories; Lamps; Laser beams; Lenses; Remote monitoring; Silicon; Structural beams;
Conference_Titel :
Particle Accelerator Conference, 1991. Accelerator Science and Technology., Conference Record of the 1991 IEEE
Conference_Location :
San Francisco, CA, USA
Print_ISBN :
0-7803-0135-8
DOI :
10.1109/PAC.1991.164386
