Toroid Control System Sheng Peng 02082006 Feb 8

Toroid Control System Sheng Peng 02/08/2006 Feb 8 th, 2006 Sheng Peng (pengs@slac. stanford. edu) LCLS Control Group

Outline Requirement External Interface Schedule Design Maturity Wiring Budget Feb 8 th, 2006 Sheng Peng (pengs@slac. stanford. edu) LCLS Control Group

Requirement There are four mechanical types of toroid Three of them are the same to control Toroid type 1 is in the GTL region Toroid type 2 is in the region downbeam from L 0 Dump toroid BCS toroid will be different, TBD Fourteen toroids in total except BCS Four toroids in injection line Preamplifier is needed downstairs Control system will interface with preamplifier to read signal, and give test signal to toroid Feb 8 th, 2006 Sheng Peng (pengs@slac. stanford. edu) LCLS Control Group

Requirement Charge and Frequency Range: 2 -1200 p. C single pulse measurement at a frequency range of 1 Hz < f < 120 Hz Resolution: 2 p. C Readout: 0 - 10 Volts Low Range Charge Accuracy: 2% RMS (linear) High Range Charge Accuracy: 2. 5% RMS (linear) Feb 8 th, 2006 Sheng Peng (pengs@slac. stanford. edu) LCLS Control Group

External Interface 8 Turns Pre-Amp ADC/ QADC 1 Turn Trigger 2 DAC Cycle start Send test signal Measure test signal Timing Trigger 1 Beam charge? Trigger 1 Trigger 2 Feb 8 th, 2006 Sheng Peng (pengs@slac. stanford. edu) LCLS Control Group

Control Interface At lease two signals come from pre-amp Generate calibration charge Read back calibration signal to calculate gain Scan timing window to find the right delay Read beam charge signal within right timing window Feb 8 th, 2006 Sheng Peng (pengs@slac. stanford. edu) LCLS Control Group

Schedule Date needed: Dec, 2006 Determine the QADC/ADC in Feb 2006 Control’s prototype ready in ~July, 2006 Hardware order date: TBD Hardware delivery date: TBD Installation: July ~ September, 2006 Test period: one ~ two months Toroid commissioning will be in Dec, 2006 Feb 8 th, 2006 Sheng Peng (pengs@slac. stanford. edu) LCLS Control Group

Design Maturity Toroid ESD 1. 3 -107(10/2005) is currently in use The mechanical engineer is working on two proposal bids The detailed interface will be defined after the winner is selected Bergoz comes with preamplifier but ISA doesn’t, so SLAC might design the preamplifier if ISA wins Feb 8 th, 2006 Sheng Peng (pengs@slac. stanford. edu) LCLS Control Group

Wiring Timing system is needed Test input connector will be type N Signal output connector will be TWINAX (or SMA as Bergoz proposed) Wiring will be bakeable, radiation hard and qualify cable loss requirement Cable is already planed for injection line, cable type is TBD For injection line, one IOC may be enough Control interface and software will be dependent on the selection of preamplifier Feb 8 th, 2006 Sheng Peng (pengs@slac. stanford. edu) LCLS Control Group

Budget ~ $10, 000/toroid Control budget: Estimate depends on design of preamplifier Feb 8 th, 2006 Sheng Peng (pengs@slac. stanford. edu) LCLS Control Group