We used Omega3P to determine the dimensions for the 206 cells in the NLC Damped Detuned Structure. Each cell has 11 distinguished dimensions. The following is a picture of the cell manufactured according to the designed parameters. Microwave QC of the cells verified frequency accuracy of 1 part in 10,000 as targeted (the same as the machining tolerance). That would have led to potential savings of more than $100 millions in NLC machine cost because the DDS is 14% more efficient than the structure with standard cell designs.
{center:class=myclass} !Omega3pAccompDDSCell.png! !DDSCellMeasurements.png! {center} |
Omega3P was used to compute the trapped modes in the Interaction Region (IR) of the PEP-II. The calculated power distribution on the vacuum chamber walls provided insights for an improved design of the PEP-II IR. The following is the field distribution of a mode in the IR.
{center:class=myclass} !Omega3pAccompPEPIIIR.png?! {center} |
The total power distribution in the IR is shown on the left. The upgrade of the IR resulted in 15% increase in the beam current, leading to higher luminosity and enabling new physics discovery. The right picture was the signature of the new particle found soon after the IR upgrade.
{center:class=myclass} !PEPIIIRPowerDist.png?! !NewParticle.png! {center} |