HIGH MAGNETIC FIELDS IN COUPLERS OF X-BAND ACCELERATINGSTRUCTURES

Technical Report · Wed Aug 13 04:00:00 EDT 2003

DOI:https://doi.org/10.2172/815266· OSTI ID:815266

Dolgashev, Valery A ^[1]

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1. SLAC

Recent high power tests of x-band accelerating structures at SLAC have shown that Coupler models were matched with an automated procedure that uses the commercial To reduce the high magnetic fields new couplers were designed. These couplers and typical results for couplers with sharp and rounded irises are discussed in code HFSS. This matching procedure is based on calculation of reflection from have 3 mm radius waveguide-to-coupler-cell iris and maximum magnetic field below is consistent with a model of pulsed heating due to high magnetic fields. The magnetic fields, 3D electrodynamics models of the couplers were built and matched. matching, the magnetic and electric fields in the couplers were calculated for typical observed damage is located in the region of high magnetic fields. To calculate these on sharp ({approx} 80 micron radius) edges of the waveguide-to-coupler-cell irises. For operation parameters. Highest magnetic fields on the order of 1 MA/m were found some input couplers, electric fields on these edges are found be as high as 10 MV/m. the coupler cell using the electric field distribution on the axis of the structure. After their performance is limited by breakdowns in couplers. The behavior of these breakdowns this paper as well as possible causes of breakdowns in the couplers.

• Research Organization: Stanford Linear Accelerator Center, Menlo Park, CA (US)
• Sponsoring Organization: USDOE Office of Science (US)
• DOE Contract Number: AC03-76SF00515
• OSTI ID: 815266
• Report Number(s): SLAC-PUB-10123
• Country of Publication: United States
• Language: English

Related Subjects

43 PARTICLE ACCELERATORS
DISTRIBUTION
ELECTRIC FIELDS
ELECTRODYNAMICS
HEATING
MAGNETIC FIELDS
PERFORMANCE
REFLECTION
STANFORD LINEAR ACCELERATOR CENTER