The LHC experiments want to know a value for machine protection called the SPS Probe Beam Flag Threshold which gives the maximum beam intensity that can be injected into an empty LHC ('probe' beam).

The value is accessible via 2 FESA devices :  CISGA_test and CISGB_test

The field of interest is probeBeamFlagAct in property CONTROLLER. It is given in units of 1E8 charges. It's present value is 1000, i.e. 1E11.

There are two values because for safety reasons everything is duplicated.

You should send both values. I let you decide on the names, units etc of the data - as you consider appropriate to fit in the standards. Please let me know where you insert it in DIP such that we can communicate this to the experiments.

 

JW