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SPS Syncrotron Telescope Software specifications Notes following the meeting

SPS Syncrotron Telescope Software specifications Notes following the meeting Aurélie Goldblatt BE-BI-PM 21.03.2014. SPS properties. Period: 23 us Timing 1kHz (or 40MHz) 25ns bunch spacing => 40MHz Number of 25ns buckets: 924

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SPS Syncrotron Telescope Software specifications Notes following the meeting

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  1. SPS SyncrotronTelescope Software specifications Notes following the meeting Aurélie GoldblattBE-BI-PM 21.03.2014

  2. SPS properties • Period: 23 us • Timing 1kHz (or 40MHz) • 25ns bunch spacing => 40MHz • Number of 25ns buckets: 924 • Max number of proton bunches: 4x72 =288 (intensity limitation, only for LHC injection?). 225 ns spacing between batches • Flat top = 1.2s (to be confirmed) • Fix target beam has more bunches with less intensity per bunch (and goes only to 400GeV) ? • Coastrun: no rampstart

  3. Camera Analog intensified and gated camera Proxitronic (LHC BSRT camera) Acquisition rate = 50Hz Through MTV, depends of image size (digitalization and acq: ~350ns/pixel) => from 3-4 Hz to 16Hz Expected acquisition: between 4 and 10 bunches per fillin bunch mode (if only measurable at flat top) • Acq Start: programmable delayafter «Ramp Start» event (or otherevent for coastruns=> Lars) • Acq Stop: «Flat top End» event • Acq. synchronizedwith trigger (rate set conservatively, ie for full image acq, then rate increased if possible) • All images released at the end of the cycle (≠ BSRT LHC) • Camera Acquisition (MTV) • Camera ON/OFF (TTL VMOD)

  4. Gate Control: (DAB, BOBR, TTL VMOD) Two modes: - Bunch Scan: 25ns gate synchronous with timing machine - DC : gate opened Bunch Scan mode: • Gate synchronized with selected bucket: 12.5 ns delay steps, DAB card synchronised with the BST (BOBR) • Bunch selection from a bunch list entered manually, length = 100 • Acqstart at the beginning of the list for each cycle Listsexamples:

  5. Gain and Position Gain Control:(DAC VMOD , MIDI) • Filters: Set manually between cycles • Camera gain: g=α ·VEwhere: • VE is a vectorwith values corresponding to time slots from «Ramp Start» to «Flat top End» events (iecorresponding to energy, sinceeach time slot corresponds to a specificenergy) • αis a scalar to set manually (in function of bunchintensity) Position Control: (MIDI) Set the steeringmotorsmanually. No feedback.

  6. Motors Control (MIDI) BSR • Steering mirror H • Steering mirror V • Filter wheel (pneumatic if possible) • Camera translation stage If LDM: • 2 filter wheels • TS X • TS Y • In/out beam splitter Cardneeded: RS232 mezzanine (VME to MIDI)

  7. Display At the end of the cycle, display all storedacq: • Image • H&V profiles with fit • Sigma ** • Position • Intensity **Corrected H&V sigma: where M from calibration and c from wire scanners (?) Remark: no emittance extrapolation, only sigma data for beginning. Display tools: • Area selection, cross cut selection => modify the profiles • BW/WB/Color • Save/clear/subtract ref image • Zoom • Marker • Cursors • Grid • Save Analog signal to CCC

  8. Actions Meeting participants: • Federico Roncarolo • Enrico Bravin • Georges Trad • Lars Jensen • Guillaume Baud • Ana Guerrero Ollacarizqueta • Aurélie Goldblatt To do: • Guillaume is in charge of the soft • Lars will propose a solution for startacqevent (compatible withcoastrun) • Aurélie willprovide to Lars the list of the cards to order to CO

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