Linac4 controls and software applications.

General overview, requirements and deadlines

G Bellodi - L4BCC meeting – 26/05/2011

G Bellodi - L4BCC - meeting 26/05/2011

BE/ABP Setting requirements &

specifications Coordination

(G Bellodi)

OP group, application

programming(J-L Sanchez

Alvarez)

Individual equipment groups ,

FESA front-end software

BE/CO Control systems, HW

infrastructure ..(I Kozsar)

G Bellodi - L4BCC - meeting

26/05/2011

o 3 MeV Test Stand o and beyond..

G Bellodi - L4BCC - meeting

Generic control tools

26/05/2011

• E-logbook – already in use • CCM/Working-sets available • Alarms – LASER extension • Vacuum – PVSS extension ?• Radiation – RAMSES • Interlocks – application, FESA classes already existing, only

needs deployment (B Puccio and team, done in the past but first time Linux installation)

Equipment Comments Needed for Use beyond 2013 Status SEM grid application - 02/2011 Yes Done

Spectrometer application

Above+ NMR calibration, magnet

cycling, plane conversion

09/2011 No (LBS?) In development

Wire scanners Upgrade ISOLDE appl. 09/2011 Yes In development

Emittance meter application Stand-alone LabView 09/2011 No In development

Bunch shape monitor (Feshenko) Stand-alone 09/2011 Yes Provided by

externals

Halo monitor Stand-alone 09/2011 No Existing, to be

tested, check for maintenance

BCTs Knobs, working sets and OPDisplay config 09/2011 Yes FESA scheduled for

summer 2011

BPMsKnobs, working sets and OPDisplay config

(orbit viewer) 09/2011 Yes FESA scheduled for

summer 2011

Time of Flight In FESA 09/2011 Yes FESA scheduled for summer 2011

Beam instrumentation

G Bellodi - L4BCC - meeting 26/05/2011

G Bellodi - L4BCC - meeting

Emittance meter application

LEM screenshot

x vs x’-Separate LEM + e reconstruction

-Originally on different platforms & not very user-friendly (need to set a lot of parameters to launch a scan, very easy to make mistakes, BI colleagues only experts at the moment)

-Work ongoing towards one single application performing scan and emittance reconstruction

26/05/2011

Evgeny’s talk

G Bellodi - L4BCC - meeting

Equipment control: source

Current 3 MeV proton source application.

Plans for more sophisticated control system being drafted for L4 H- source.

26/05/2011

G Bellodi - L4BCC - meeting

Equipment control: chopper Equipment Comments Needed for Assigned to: Status

Chopper Sequence

generation and RFQ synchron./ LLRF development

2012 A Butterworth, P Baudrenghien Under discussion

1. First phase of manual testing to calibrate obtained deviaton vs voltage applied (DC operation)

2. Tests of AC operation and beam time structure with halo monitor.

Proposal under discussion :

1. Initially (2012) use existing BE-CO timing cards with a resolution of 25ns to provide bunch sequences for tests of basic chopper functionalities. Possibility to use RF LHC-style hardware if finer resolution (sub-ns) is required. Standard controls solution: FESA class already available. OP customisation if needed.

2. End 2012: LLRF development at 352MHz . Commissioning time slot should be planned for testing simple beam sequences at 3 MeV in the tunnel, as starting point for a full LLRF validation and more complex tests of L4 synchronisation to the PSB and beam production schemes. FESA classes provided by RF. Simple application needed to define bunch sequences to be tested. Ideally identify a person in OP to take charge and follow up all LLRF-related work in view of developing the final “Linac4 Super-application”(?).

26/05/2011

G Bellodi - L4BCC - meeting

General purpose

Application Comments Needed for Status

Fingerprint take snapshot of machine state, and save in PATH/TRACE input file format

09/2011 Ongoing

2D Scan Correlate any 2 signals 09/2011 Planned to start after May 2011

Eqpviewer Display signals vs time 09/2011 Done

OASIS: initially not foreseen, request has since been approved for a package to have availability of signals from transformers, pick-ups and power supplies Ioan’s talk

26/05/2011

G Bellodi - L4BCC - meeting

26/05/2011

o 3 MeV Test Stand o and beyond..

G Bellodi - L4BCC - meeting

H- Source application

26/05/2011

Component, measurement system parameters unitsPower supplies U(t), I(t), Ueff, Ieff V, kV, A, mASparks counter I>Ipeak min-1

H2 injection and Pumping systems (extraction, Einzel lens, LEBT)

P(t), Pmax, Peff mbar

H2 density regulation (density, thickness) r(t), reff, Xeff At/cm2

Residual gas mass analysis spectrum and follow up of H, H2, N, N2, O, O2, OH, H2O, CO2, CO, Ar

Mass spectrum, I(M,t)

At/s

Optical emission spectroscopy: spectrum and Ha, Hb, Hg, relevant impurities

I(200-900 nm)Hi(t), Hieff

Photon/s

Timing and delays toi, dti ms, msTemperatures Ti °CRF f, UF(t), UR(t)Vacuum gauges, valves Interlocks & safety systems

Time dependent values will be acquired via oscilloscopes: 2 OASIS systems x 16channels (8x10MHz bandwidth , 8x100MHz bandwidth )

J Lettry

Ex. date=03/2013 at the latest

G Bellodi - L4BCC - meeting

PSB injection application

26/05/2011

-control/status for H- foil exchanger - viewing SW and control for foil camera (could be like BTV application).  -dedicated BLMs synoptic

-data logging - what, with what frequency, what filtering etc. -dump current monitoring (normalisation to the injected beam intensity to judge if the foil is degrading).

-display of beam intensity in the line, intensity circulating, transmission/injection efficiency values

Ex. date=2014

G Bellodi - L4BCC - meeting

L4-to-PSB synchro application for beam production schemes

26/05/2011

High level applications to control chopper/pre-chopper sequences and synchronisation timings in PPM mode according to super-cycle specifications

• Setting up of users in the super-cycle : intensity per beam, number of PSB rings for injection, number of turns per ring. From these settings the correct chopper and pre-chopper sequences are selected.

• Synchronization of the beam delivered by Linac4 with the PSB RF system

• LLRF system compensation of beam loading transients by feed-forward

• Energy modulation for longitudinal painting if needed

• External conditions (suppressing injection into one or more rings) and interlocks internally accounted for.

Complex tool but to be kept of as simple use as possible

Ex. date=2014

G Bellodi - L4BCC - meeting

L4 beam instrumentation

26/05/2011

Equipment Comments Needed for

BLMs Acquisition display,loss histograms, synoptics 2013

3 screens emittance measurement

Adapt existing SPS application? 2013

LBE/LBS Upgrade existing 2014

G Bellodi - L4BCC - meeting

Other commissioning/OP tools

26/05/2011

Equipment Comments Needed for

Orbit correction /YASP acquire BPMs readings, use steering algorithm to find corrector strenghts to reduce beam offsets 2013

Automated phase/amplitude longitudinal scans

Set RF points (by calculating output phase and energy) 2013

Online model application for transverse matching:

Acquire beam sizes at WS and compare to model predictions. Use iterative optimisation algorithm to

solve for input Twiss parameters (input from live machine data and online model tracking-TRACE3D?)

-lower priority-

>2013

Umbrella overview

G Bellodi - L4BCC - meeting

3 MeV test stand :

o Progress is ongoing and details/requests are being defined for software and hardware needs.

o Coordination meetings are held ~every couple of weeks, with more specific meetings in between.

Present status, progress tracking, deliverables ) Linac4 Longer term planning (considering both development and maintenance needs):

-availability of resources- impact from LS1 activities- expected showstoppers?

26/05/2011