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Title: Tuning methods for the 805 MHz side-coupled cavities in the Fermilab linac upgrade

Conference ·
OSTI ID:5660569

The fabrication and tuning of Side-Coupled Accelerator Structures (SCS) are strongly interrelated. Consideration of mechanical tolerances and fabrication sequences can reduce tuning steps that require repeated machining. With available CNC machines and numerical calculation programs, it is possible to machine cavities to a calculated shape. Accelerating cells are tuned by control of the depth of coupling slots rather than trimming the nose of accelerating cells. Predicting the correct frequency off-sets to use at each manufacturing stage produces a brazed structure of proper couplig with a minimum amount of tuning. 2 refs., 1 fig.

Research Organization:
Fermi National Accelerator Lab. (FNAL), Batavia, IL (United States)
Sponsoring Organization:
DOE/ER
DOE Contract Number:
AC02-76CH03000
OSTI ID:
5660569
Report Number(s):
FNAL/C-90/206; CONF-9009123-61; ON: DE91005001; TRN: 91-000778
Resource Relation:
Conference: Linear accelerator conference, Albuquerque, NM (USA), 9-14 Sep 1990
Country of Publication:
United States
Language:
English