2011 Particle Accelerator Conference - List of Authors (Nieter, C.)

Paper	Title	Page
WEP163	RF Cavity Characterization with VORPAL	1797
	C. Nieter, P.J. Mullowney, C. Roark, P. Stoltz, C.D. Zhou Tech-X, Boulder, Colorado, USA F. Marhauser JLAB, Newport News, Virginia, USA
	When designing a radio frequency (RF) accelerating cavity structure various figures of merit are considered before coming to a final cavity design. These figures of merit include specific field and geometry based quantities such as the ratio of the shunt impedance to the quality factor (R/Q) or the normalized peak fields in the cavity. Other important measures of cavity performance include the peak surface fields as well as possible multipacting resonances in the cavity. High fidelity simulations of these structures can provide a good estimate of these important quantities before any cavity prototypes are built. We will present VORPAL simulations of a simple pillbox structure where these quantities can be calculated analytically and compare them to the results from the VORPAL simulations. We will then use VORPAL to calculate these figures of merit and potential multipacting resonances for two cavity designs under development at Jefferson National Lab for Project X.

Paper

Title

Page

RF Cavity Characterization with VORPAL

1797

C. Nieter, P.J. Mullowney, C. Roark, P. Stoltz, C.D. Zhou
Tech-X, Boulder, Colorado, USA
F. Marhauser
JLAB, Newport News, Virginia, USA

When designing a radio frequency (RF) accelerating cavity structure various figures of merit are considered before coming to a final cavity design. These figures of merit include specific field and geometry based quantities such as the ratio of the shunt impedance to the quality factor (R/Q) or the normalized peak fields in the cavity. Other important measures of cavity performance include the peak surface fields as well as possible multipacting resonances in the cavity. High fidelity simulations of these structures can provide a good estimate of these important quantities before any cavity prototypes are built. We will present VORPAL simulations of a simple pillbox structure where these quantities can be calculated analytically and compare them to the results from the VORPAL simulations. We will then use VORPAL to calculate these figures of merit and potential multipacting resonances for two cavity designs under development at Jefferson National Lab for Project X.