Hall A » SBS experiments » SBS-analysis

h1. Database Parameters

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h1. Naming Convention

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h1. GEM DB Variables

 *bb.gem.m*.position* - Position of the center of the module relative to the first module in the

stack.

* bb.gem.m*.angle - Angle of the module.

• bb.gem.m*.maxstrip t0 - Mean time where good strips are expected. This is only applied to the

maximum strip.

• bb.gem.m*.maxstrip tcut - Cut around mean time (above) where good strip times are expected.

i.e. good strips will have a time that is within t0 ± tcut. This is only applied to the maximum strip.

• bb.gem.addstrip tcut - When forming clusters all strips in the cluster must have a time difference

between them and the max strip that is less than this value.

• bb.gem.addstrip ccor cut - ADC correlation between strips and the max strips in a cluster must

be greater than this number.

• bb.gem.m*.threshold sample - Maximum ADC time sample for a strip must be above this

threshold.

• bb.gem.m*.threshold stripsum - Strip time sample ADC sum must be above this threshold.

• bb.gem.m*.threshold clustersum - ADC sum of all strip sums in a cluster must be above this

threshold.

• bb.gem.m*.ugain - Gain of each APV card on the U axis of this module.

• bb.gem.m*.vgain - Gain of each APV card on the V axis of this module.

• bb.frontconstraint x0 - Calorimeter front constraint mean x position.

• bb.frontconstraint y0 - Calorimeter front constraint mean y position.

• bb.backconstraint x0 - Calorimeter back constraint mean x position.

• bb.backconstraint y0 - Calorimeter back constraint mean y position.

• bb.frontconstraintwidth x - Calorimeter front constraint x width.

• bb.frontconstraintwidth y - Calorimeter front constraint y width.

• bb.backconstraintwidth x - Calorimeter back constraint x width.

• bb.backconstraintwidth x - Calorimeter back constraint y width.