symmetricBunchPattern

• type: Setup command.
• function: This command defines a symmetric bunch pattern.

&symmetricBunchPattern
    long startBucket = 0
    long bunches = 1
    double currentPerBucketMA = 0.0
    double totalCurrentMA = 0.0
    long clearPreviousPatterns = 0
&end.

• startBucket -- Bucket number of the first bunch in the bunch train. In the case of a symmetric bunch pattern, startBucket is the bucket number where one of the bunches is located. Default is 0, the first bucket.
• nBunches -- Number of bunches in the symmetric distribution. If nBunches is not a divisor of the RF harmonic number, then a close approximation of the symmtric distribution is generated.
• currentPerBucketMA -- Current in mA for each bunch defined.
• totalCurrentMA -- Total current of all bunches defined in this command. Used to determine the current of individual bunches. Either variables currentPerBucketMA or totalCurrentMA may be defined. If both are present, variable currentPerBucketMA takes precedence.
• clearPreviousPatterns -- If this flag is set to 1, then bunch patterns defined in previous symmetricBunchPattern or generalBunchPattern are cleared before setting the bunches of this namelist command.