ESTB Test Beam Procedures User Support Operations Schedules Carsten Hast March 17 th 2011

2 Test Beam Request Approval We have not yet worked out how the approval process for test beam requests will work In the past that was done rather informally for short beam time requests (1 to 2 weeks) –Write a short but comprehensive proposal (2-5 pages or so) –Ad hoc SLAC internal review –Organization was left largely in the hand of the Experimental Facilities Department (EFD)  This workshop is supposed to show how much demand for what type of beams there is and how formal we have to organize ESTB operations –My guess is that the future procedure will be similar to the old one C.Hast, ESTB Workshop SLAC, March 2011

ARD Test Facilities Department 3 C.Hast, ESTB Workshop SLAC, March 2011

After Your Proposal is Accepted Any experimental setup needs review and approval to be installed and operated at SLAC –Safety Oversight Committee (SOC) Looks at experimental equipment and will request Safety Officers and others to review your setup –TF will be instrumental in getting the necessary approvals for you We know how the system works We are part of the system We can do many things for you – If you tell us what you want to do This process can be quite fast for “normal” setups But if you need “more exotic” components (e.g. hazardous gases) will take more time –Electrical components need to be UL listed (or equivalent) That’s a tough one, because many devices you are using in your home institutes are not! A European “CE” is not good enough at SLAC SLAC has an inspection process to approve non listed devices –TF can do that –We will only allow the operation of approved devices –Radioactive sources need to be registered with RP prior their arrival 4 C.Hast, ESTB Workshop SLAC, March 2011

Becoming a User Users will register with the SLAC Users Organization –SLUO –SLUO will work with the PI on a generic MoU between Stanford University and your home institution (mainly about intellectual property rights…) –Each individual user needs to agree to that MoU –SLUO will get users a SLAC systems ID and a computer account A SLAC Contact will be assigned to each experiment and user –This SLAC Contact functions as your supervisor here at SLAC –Mauro Pivi is the man of the hour for ESTB SLAC Contact defines the training requirements –Most training can be done remotely via web training (after you have a SLAC system ID) –Couple of things on first day of arrival We will setup a web page which will lay out what you need to do and when 5 C.Hast, ESTB Workshop SLAC, March 2011

SLAC Your experimental setup should arrive as “ready to go” as possible Test Facilities Department will help you installing your experiment –Vacuum work –Crane operation –Small modifications –Hook up of gases, water cooling, electricity, etc. Alignment group is available on short notice  All above covered in ESTB operations budget Basic DAQ will provide beam parameters on a per shot basis You provide the DAQ for your setup If you need things which don’t exist yet (special gases, cables, lasers, DAQ, etc.) we need time (and money) to provide these Contact us early and we will talk 6 C.Hast, ESTB Workshop SLAC, March 2011

Preparation of Your Setup ESA Counting House and other locations in the Research Yard have some space for experimental setup –You can assemble your experiment and test DAQ –Limited hardware modifications possible –hand tools, drill press, soldering iron, etc. are available  ESA is meant for beam operation so we will try to minimize the idle time during allocated beam time Access to ESA is time consuming In-and-out >30 minutes Securing the beam for access needs 10+ minutes (each way) 73 stairs from Counting House to ESA  free “fitness program”  Good preparation is key for efficient operation 7 C.Hast, ESTB Workshop SLAC, March 2011

Operations of ESTB ESTB is mainly operated from ESA-Counting House, with visits to MCC and in some cases operated from MCC Basic operation –Beam energy and bunch charge is defined by LCLS –LCLS experiments runs for 5 days from Thursday morning to Tuesday morning Time might be split between a day and night time LCLS experiment (change of beam parameters likely) –Linac maintenance on Wednesday day (ROD)  no beam to ESA –5Hz of LCLS beam to ESA 24/7 (see caveats above) –Automatic rate increase if LCLS experiments don’t need full rate or have short access We will try to stage multiple experiments in ESA to run simultaneously For example: Silicon first followed by some calorimeter  DAQ should be flexible to cope with changes Our DAQ will give you a trigger signal Automatically take advantage of higher beam rates Beam energies might change If parameters become unacceptable for your experiment  turn BSY kickers off 8 C.Hast, ESTB Workshop SLAC, March 2011

Operations of ESTB II Example 1 –Your program asks for single electrons between 4 and 14GeV –LCLS experiment is scheduled to run at 14GeV –BSY kickers will kick beam onto target  electrons max energy 14GeV –Now you work with MCC to set the A-line as spectrometer to desired particle energy –LCLS changes to 10GeV unexpectedly –Either you monitor in person and work with MCC to reset the A-line to a new lower energy and as soon as LCLS goes up again resets the A-line to a higher energy again –Or we manage to do that (semi) automatically –Or we stop running and turn BSY kickers off Example 2 –Your program asks for full beam at 14GeV –LCLS is scheduled to run at 14GeV –Set BSY kickers and A-line to 14GeV –Beam becomes unstable: Work with MCC operators –LCLS changes to 10GeV unexpectedly  turn BSY kickers off 9 C.Hast, ESTB Workshop SLAC, March 2011

Schedule This Down Time (now to mid May) –We install one BSY kicker with a stainless steel vacuum chamber End of May LCLS starts up and runs until Christmas (one week off in October) Mid of June FACET runs until August Mid of July ESTB can do first test of kicking a 4GeV beam into A-line ESA PPS becomes available this summer –4GeV primary beam to ESA –4-14GeV secondary electron beam to ESA Commissioning of ESA infrastructure September/October Oct 25 th – Nov 1 st install 4 BSY kicker magnets with ceramic chambers First ESTB run in November and December (need commissioning time) Linac off from Christmas to end of January ESTB running resumes February 2012 SLAC downtimes are in Aug/Sept and over Christmas for the next years 10 C.Hast, ESTB Workshop SLAC, March 2011

Summary After this workshop we will develop formal procedures of how to apply for and to distribute beam time Test Facilities is your one stop shopping for support at SLAC –TF will assist with equipment installation and the coordination with other services needed (rigging, vacuum, alignment, etc.) –Special requests (DAQ, hardware, gas, laser) will need time to be implemented –Careful planning ahead will be a key ingredient to make you experiment a success Users will have a SLAC Contact who will be responsible for their training assessment and work authorization and work release Users will be responsible to only do what they have been trained, authorized and released to do LCLS defines the beam parameters! –Your measurement program, and yours and our infrastructure need to be flexible to make the maximal use of the available beams We are excited to get ESA back up again for beam operation though there is still quite a bit of work to do and Test Facilities Department is stretched thin this summer working on FACET, NLCTA and ESTB at the same time 11 C.Hast, ESTB Workshop SLAC, March 2011