Recycler short kicker beam impedance
Measured longitudinal and calculated transverse beam impedance is presented for the short kicker magnets being installed in the Fermilab Recycler. Fermi drawing number ME-457159. The longitudinal impedance was measured with a stretched wire and the Panofsky equation was used to estimate the transverse impedance. The impedance of 3319 meters (the Recycler circumference) of stainless vacuum pipe is provided for comparison. Although measurements where done to 3GHz, impedance was negligible above 30MHz. The beam power lost to the kicker impedance is shown for a range of bunch lengths. The measurements are for one kicker assuming a rotation frequency of 90KHz. Seven of these kickers are being installed.
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- Resource Type:
- Technical Report
- Research Org:
- Fermi National Accelerator Laboratory (FNAL), Batavia, IL
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- Country of Publication:
- United States
- 43 PARTICLE ACCELERATORS; FERMILAB; IMPEDANCE; KICKER MAGNETS; METERS; ROTATION Accelerators
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