A   B   C   D   E   F   G   H   J   K   L   M   N   O   P   R   S   T   U   V   W   Y   Z    

Kasel, E.

Paper Title Page
PM01 Position Monitoring of Accelerator Components as Magnets and Beam Position Monitors 159
 
  • G. Schmidt, E. Kasel, D. Schirmer, K. Wille
    DELTA, University of Dortmund, Germany
 
  In third generation light sources a large amount of heat load from synchrotron radiation must be dissipated from the vacuum chamber. The synchrotron radiation hits the outer chamber wall and leads to a bending of the vacuum chamber. Due to the fact that very often beam position monitors are included into the vacuum chamber, they start to move with increased heat load onto the vacuum chamber. An inexpensive and precise method to monitor this movement has been tested at the Dortmunder Electron Test Accelerator (DELTA). Commercially available Linear Variable Differential Transformers (LVDTs) have been used. In addition it was possible to demonstrate that due to the vacuum chamber contact to quadrupole magnets the quadrupoles were moving with increasing beam current leading to a significant orbit drift.