The material for the north PRY arrived at RAL on Tuesday 12May15. When work to install nine (of ten) cryocoolers and the power and sensor cables to the spectrometer solenoids had been completed on Wednesday 13May15, the north PRY legs were installed on Thursday 14May15. The legs were aligned and bolted down on Friday.
In parallel, work on the absorber/focus-coil module continued. The module is now almost ready to be placed on the beam line. The bellows that link the focus-coil module to the spectrometer solenoids have been prepared and will be installed at the start of next week. The focus-coil module will then be moved onto the beam line.
The target team have spliced and terminated the new fibres at junction boxes inside and outside the synchrotron. Work over the coming days will ensure the integrity of the new fibres so that the target may be operated with them.
Progress on LH2:¶
Excellent progress has been made on preparing the LH2 system for Step IV operation. The integrity of the safety windows has been proven to the satisfaction of the MICE/ISIS H2 working group. Further, the H2 exhaust path has been agreed. These are essential (necessary but not sufficient) steps towards the operation of Step IV with LH2.
The exhaust path now has to be proved and the system commissioned with He gas. In addition, the necessary documentation must be finalised to allow the MICE/ISIS Safety Committee to recommend to the Directors of ISIS and PPD that the LH2 system is fit for operation.
At present we have decided that the first absorber to be studied at Step IV will be LiH. Only once the technical, safety and formal sign-off milestones outlined above are completed can this decision be revisited.
The near future:¶
The big task next week is the installation of the north PRY and the trial assembly of the PRY end plates. The line will be made ready on Monday and Tuesday. Over this period the bellows will be fitted, the absorber/focus-coil module will be placed on the beam line and the channel will be bolted together. On Wednesday, the installation of the north PRY will start. It will be important to complete the installation of the PRY next week to avoid a stack-up of work towards the end of the month.
The last of the cryocoolers in the downstream solenoid will be fitted in the week of the 25th May2015. At this time a short to ground that has been observed in the current leads of the downstream solenoid will also be rectified.
The operations plan prepared by the Physics group for ISIS cycle 2015/01a (June) was accepted by the EB at its meeting on 08May15. The Operations group is now working on implementing the plan.
Operations in June and July will be devoted to bringing the spectrometer solenoids and focus-coil module up to operating current, commissioning the tracker readout with beam and performing initial alignment studies of the Step IV apparatus. In June there will be one data-taking shift per day. The shift will be staffed by two shifters and run from 22:00 to 06:00. A “floating shifter” will be in place for the day time (06:00 to 22:00) to support experts in commissioning. Over this period, priority will be given to magnet training and tracker-readout commissioning.
From cycle 2015/01b (July), 24/7 operations (three shifts of two shifters each) will begin. While still scheduled as a commissioning period, it will be the ambition to move more and more to a routine data-taking mode.
In the light of all this excellent progress, I think we can agree that Step IV operations can formally be scheduled to begin in ISIS cycle 2015/02 (August 2015).
1. The MICE instance of the ISIS User Database is now in production. The link to it is:
⁃ Please take a moment to register or to make sure that your existing registration is up to date.
⁃ This is important as information such as your training status is held on the database. Keeping this up to date is part of our safety case and will be scrutinised by ISIS as we seek permission to operate Step IV.
2. The WWW site of CM42 is now live. You can reach it by following the link from the MICE home page:
⁃ Please register!
⁃ With best wishes as always …
The plates that will form the south side of the PRY have been collected by the shipping agent from Keller in New York. The present expectation is that the plates will arrive in the UK next Tuesday and, if all goes well, be received at RAL on Wednesday.
The long-day working in the Hall has been successful and has cleared a number of jobs. Work in the Hall has been organised so as to allow the PRY plates to be delivered directly to the MICE Hall.
Weekend running in the present ISIS User Run [2014(03)] is now underway. The goals set for running this weekend (21/22 March 2015) were to establish smooth operation from target to TOF1, carry out an initial calibration of TOF0 and TOF1, take data to allow a first test of the reconstruction algorithms required for MICE Muon Beam commissioning and the completion of BLOC training using beam on target. It is to the great credit of all those involved in the preparation of our online, computing, data-handling and operations activities that all these goals have all been achieved.
Work continues to resolve the noise and related issues in the tracker readout. The installation of the experimental ground in the MICE Hall has also progressed. The work on establishing the smooth operation of the tracker readout remains a high priority.
The pattern of weekly Operations meetings (in person 11:00 Friday’s and in-person/teleconference 15:00 Monday’s) is now established. A full debrief on the weekends running will take place at the Operations meeting on Monday 23Mar15.
The near future:¶
Installation of the PRY plates to the south side will start on Monday 30Mar15.
Work on the cabling, compressor-hose support structures and other infrastructure will continue in parallel.
Weekend operations:¶The goals presently set for operations in the present ISIS User Run are:
◦ Perform calibration of TOF0 and TOF1;
◦ Take data to allow a comparison of the performance of the old and new trigger systems;
◦ Take pion-beam data to allow the reconstruction algorithms required for MICE Muon Beam commissioning to be developed.
- 11/12Apr15, 18/19Apr15 and 25/26Apr15:
◦ Check the TOF calibration. It will be important to take some data to be sure that the calibration is stable;
◦ First pass of MICE Muon Beam (MMB) commissioning:
▪ Start with the currents used in Step I to check the degree of reproducibility of particle rates;
▪ Based on the revised simulation of the beam line (Jaroslaw Pasternak), start the search for the optimum magnet settings;
◦ Commissioning and calibration of TOF2, KL and EMR will begin as soon as the south-side PRY is complete and the magnets and downstream detectors are in their final Step IV positions.
The MICE WWW pages continue to be improved and, of course, Durga Rajaram is always ready to receive comments and suggestions for improvements.
One important update, for those giving talks or preparing documents, is that the “public information” page has been updated and now includes not only published figures and tables but also the sketches and plots for the cooling demonstration that we agreed to make public at the recent CM. Please use these figures.
To get to the information, go to the MICE www site (mice.iit.edu) take the drop-down menu “Documents” and select “Publications”. You can also get there by taking the drop-down menu “Resources” and selecting “Drawings and Images” and then following the link to publications and figur
The south-side PRY support legs are now in place and have been surveyed. The shims have been measured and machined and will be installed this week. The Hall is therefore essentially ready for the installation of the south-side PRY plates. In New York, the south-side plates are being made ready for shipment. The teams on both sides of the water are working to ensure that shipping delays are reduced to a minimum. Work at Keller continues to complete the north-side plates. So far, the critical work to install the PRY remains on track.
The “two-shift”, or perhaps more accurately the long-day working, in the Hall has started as planned today (Monday 16Mar15). Work has now started on the prioritised list of jobs. To help make sure all are aware of what is going on, the list of jobs to be carried out over the next two weeks is posted on the screen located next to the personnel door to the MICE Hall.
Software and computing:¶
Durga Rajaram and the online, controls and offline software teams are pressing forward to make sure all is in place for Step IV. Automatic batch processing has been established and will be put to the test in the upcoming weekend operations.
Issues to do with the event-processing time are being addressed. Changes in the raw-data format made necessary by upgrades to the online system require that the unpacking routines be updated. The necessary upgrades are being implemented.
Work continues on the reconstruction algorithms. The detailed work necessary to ensure that the Kalman track fit in the tracker is statistically correct is making steady progress (Chris Hunt). Getting this right is, of course, central to delivering the Step IV programme.
Shift sign-up for the weekend running in ISIS User Run 2014(03) (i.e. now to end April) is pretty much complete. Sign-up for the running from June (ISIS User Run 2015(01)) is now live. After a brief flurry of activity, the sign-up for shifts in June and beyond has slowed down; please do sign-up for your shifts as soon as you are able.
The near future:¶
While the PRY plates are in transit, work to advance the cabling, compressor-hose support structures and other infrastructure will continue.
Weekend operations from 21Mar15:¶
- The service of the Linde refrigerator serving the decay solenoid starts today. The decay solenoid will not be available until after Easter. While the plan for operations is likely to have to respond to pressures from the construction and commissioning activities, the goals presently set for operations in the present ISIS User Run are:
- 21/22Mar15, 28/29Mar15:
⁃ Establish smooth operation from target to TOF1;
⁃ Carry out an initial calibration of TOF0 and TOF1;
⁃ Take data to allow a comparison of the performance of the old and new trigger systems;
⁃ Take pion-beam data to allow a first test of the reconstruction algorithms required for MICE Muon Beam commissioning;
⁃ Complete BLOC training on target tuning.
- 11/12Apr15, 18/19Apr15 and 25/26Apr15:
⁃ Check the TOF calibration. It will be important to take some data to be sure that the calibration is stable;
⁃ First pass of MICE Muon Beam (MMB) commissioning:
⁃ Start with the currents used in Step I to check the degree of reproducibility of particle rates;
⁃ Based on the revised simulation of the beam line (Jaroslaw Pasternak), start the search for the optimum magnet settings;
⁃ Commissioning and calibration of TOF2, KL and EMR will begin as soon as the south-side PRY is complete and the magnets and downstream detectors are in their final Step IV positions.
Once the south-side PRY is installed and the magnets are positioned on the beam line (present milestone date 14Apr15), the tracker waveguides can be installed to the south-side VLPC cryostats. The tracker team is discussing how best to make use of the time from around the 14Apr15 to advance the tracker commissioning and to profit from the weekend running.
The second MICE/ISIS Operations Meeting will take place at 15:00 today (16Mar15). The first of the regular weekly MICE Operations meetings will take place (exceptionally!) tomorrow (17Mar15) starting at 14:00. After that the pattern of operations meetings will be as we agreed:
• Friday’s 11:00: In person Operations meeting;
• Monday’s 15:00: A meeting to debrief on the weekend’s operation and to plan the coming week.
Preparations for the April 2015 international review of the project (RLSR/MPB/FAC): ¶
The MICE Project Board will meet on the 16th and 17th of April 2015. The MPB meeting will be preceded by the Resource Loaded Schedule Review of the project on the morning of the 16Apr15 and the project will be required to report to the international Funding Agency Committee on the afternoon of the 17Apr15.
The last reviews in November were important for us; they went well and the project was re-baselined. The reviews in April will give us the chance to demonstrate our command of the Step IV construction project, to show that we’re on top of our preparations for Step IV operations and physics analysis and to present the excellent progress that has been made in defining the cooling demonstration configuration and the necessary engineering details.
To achieve all of this we’ll have to deliver the necessary paperwork and prepare an excellent set of talks. Work on the preparation for the April review of the project will start next week. Success in April will be based on the hard work of all; please respond in line with the necessary deadlines if you receive a request for to contribute to the preparations!
The first set PRY legs have made their progress around the Hall. The shims were installed under the legs on the North Side and the survey was repeated. When all were satisfied, the legs were removed and the spectrometer solenoids and the focus-coil module were moved into the “park” position. At the end of the week, the downstream set of legs had been installed on the South Side. Final positioning and alignment will take place early next week. After this, the process will be repeated on the u/s set of legs. We’ll then be ready for the PRY plates.
The designers, Steve Plate and Jason Tarrant, have been in the Hall discussing, supervising and fine-tuning the plans for the installation of the plates.
At Keller, in New York, the plates for the south side have been completed. The fit check has been “signed-off OK”. Preparations are being made to air-ship the first set of plates. The teams in the US and at Keller, as well as the local MICE and RAL logistics teams, are all primed to bring the plates into the UK and to the lab asap. Unfortunately, as soon as the shipper picks up the plates to take them to the airport, we loose a degree of control. Roy, Andy and Alan (Bross) will be watching closely to minimise any potential for delay that may arise from border-agency or customs bureaucracy.
Steady progress in Rack Room 2 is bringing the internal wiring towards completion. So, up to the end of last week, the construction project remains on track.
In parallel to the construction work, the MIPO is focused on defining the interfaces and envelopes for the cooling-demonstration configuration. It is important that we use all available engineering effort effectively. The interfaces and envelope specifications must be completed to allow the design, fabrication and assembly work to continue in parallel to the completion of Step IV.
The run-up of ISIS has not gone quite according to plan. The machine was not ready for MICE to take beam today (08Mar15). Reluctantly, on Friday 06Mar15, Steve Boyd was forced to cancel the running planned for 08Mar15.
However, in preparation for the 08Mar15 run, a second mock-data run was carried out on the 05Mar15. This was a success; all systems required for running on 08Mar15 were commissioned. While disappointing, the preparations will put us in a good position to begin operations on the weekend of 21Mar15.
The near future:¶
MICE Hall: ¶
The installation of the components of the PRY remains the priority for work in the Hall. The Hall team is now laying plans to ensure the best use of the additional effort brought in to allow two-shift construction from 16Mar15. This effort will be turned onto the installation of the south PRY plates as soon as they arrive on site.
Weekend operations from 21Mar15: ¶The cancellation of the 08Mar15 run means that the final commissioning with beam of the equipment required to take data for TOF calibration will need to take place on the 21Mar15. In the coming week the Operations team will block-out the activities that will take place during the present ISIS User Run (2014(03)).
Shift sign-up for the weekend running is good, but not yet complete: please volunteer! Shift-training will be organised on Fridays in advance of the weekend running.
Looking ahead; we are planning to move towards full time running from June 2015 (ISIS User Run 2015(01). It has been decided that operations pause for a scheduled maintenance day each Wednesday. During this period, Wednesdays will also be exploited for training.
The second MICE/ISIS Operations Meeting will take place at 14:00 in the 16Mar15. Steve Boyd will be in touch shortly about the essential preparations for this meeting and the agenda. After this meeting, the regular weekly pattern of MICE Operations meetings will begin. As you know, the pattern we have agreed, at least for User Run 2014(03), is:
- Friday’s 11:00: In person Operations Meeting (modelled on the current Hall meeting). All those involved in the weekend’s running are required to attend in person. There will be no phone connection;
- Monday’s 15:00: A meeting to debrief on the weekend’s operation and to plan the coming week. Those involved in the preceding weekend’s run are expected to attend in person. Others with responsibility for equipment, operations or involved in running the following weekend are expected to attend. A phone connection will be provided for remote participation.
The set of PRY-support legs delivered to RAL last week have been installed. They have been aligned and the bespoke shims that will be slotted under their feet are now being machined. At Keller in New York the trial “fit-up” up of the PRY plates with the second set of legs has been completed successfully. Excellent progress all around!
Next week, the shims will be fitted and the alignment of the legs in the Hall will be checked. Once these operations are complete, the legs will be removed so that the magnets can be moved out of the beam position allowing access to the south side of the experiment. The legs will then be installed in their final resting place, on the south side of the experiment.
The steady progress on completing the wiring in Rack Room 2 continues.
Arrangements for the first operation of MICE with beam on 08Mar15 are firming up. The focus of this run will be to debug and commission the MICE Muon Beam and the upstream instrumentation (as far as TOF1). The objective will be to leave the experiment in such a state that TOF calibration can start in the first set of weekend runs (21/22 Mar15).
The near future:¶
MICE Hall: ¶
The installation of the components of the PRY remains the priority for work in the Hall. The excellent progress at Keller highlights the need for the MICE Hall team to be well prepared for the two-shift installation operation that will start on the 16Mar15.
A focused operations meeting will take place on Monday 02Mar15 to discuss arrangements for the 08Mar15 run. As part of the preparation, a second mock-data run is now scheduled for the 05Mar15. Details of the planning will be circulated by Pierrick Hanlet (outgoing MOM) or Yordan Karadzhov (incoming MOM) next week. Steve Boyd will present the status of the Operations activities at next week’s Video Conference.
Weekend operations from 21Mar15:¶
This point is included to remind you to sign up for shifts. These shifts are important to the experiment to get a head start on commissioning and are an excellent opportunity to learn to operate the apparatus.
The decay solenoid will not be available during the Easter weekend. By that time, it is expected that we will be ready to tune the muon beam. Therefore shifts will not be scheduled over the Easter weekend but will resume on the weekend of the 11Apr15 when it is anticipated that the decay solenoid will be ready for operation once more.
The first shipment of legs for the partial return yoke arrived on Tuesday (17Feb15). The legs were received in R9 and prepared for installation; nuts to hold the jacking bolts were welded into the feet of the first set of legs which were then moved to the Hall on Friday and fitted in position. Welding of the nuts on the second set of legs took place today so that they can be fitted into position in the Hall tomorrow. Once the legs are position coarse alignment will be performed before the geometer is called in to make the final alignment.
The steady progress on completing the wiring in Rack Room 2 continues.
On the operations side, many of the issues noted in the first mock data run have been addressed. Regular operations meetings have begun; Steve Boyd is setting up a mailing list, the sister of the MICE Hall list, to disseminate the information from these meetings.
The near future:¶
MICE Hall: Priority for work in the Hall remains the completion of the installation and alignment of the PRY legs on the North Side of the channel. The Hall team is gradually being augmented; this week Kevin Ladhams from Imperial will join the team. Once the preparation for the alignment of the PRY legs is complete, work will restart on the installation of support of cryogenic services and electrical services while the alignment itself is carried out.
08Mar15: The operations team are preparing for running on the 08Mar15. The schedule for this run remains as in the previous status report. Detailed plans will be circulated by Steve Boyd and Pierrick Hanlet (MOM) in the near future.
Weekend operations from 21Mar15: Weekend operations will start on the weekend of the 21Mar15. The shift sign-up for the 08Mar15 run and the weekend runs is live in CHEESE; you are urged to volunteer as soon as possible.
Following the discussions at CM41 another pass is being made through the commissioning and running plans for Step IV that we laid last autumn. The assumptions made (trigger rates etc) will be revisited and the time estimates checked. Progress on the review of the commissioning and operations plans will be presented at the next VC. With this re-analysis we will be able to revisit the Step IV shift allocation. As part of this re-analysis a weekly planned maintenance day is being considered.
Weekend operations starting 21Mar15:¶
○ During the ISIS User Run we can schedule operations. The two-shift working arrangements outlined above are scheduled to take place from 06:00 on a Monday to 14:00 on a Friday. This leaves the weekends free for operation.
○ The timetable for weekend running in the coming User Run will be:
• Friday, 15:00: Hall available to operations team;
□ Friday afternoon will be reserved for shift training and for searching and securing the Hall ready for operations to start 08:00 on Saturday.
• Saturday and Sunday: 08:00 — 24:00:
□ Two shifts (08:00-16:00 and 16:00-24:00);
□ The last two hours on Sunday night will be reserved for making the Hall ready for the construction work to start at 06:00 on Monday morning.
○ This running schedule makes it necessary to start a regular series of operations meetings. These will be:
• Fridays, 11:00:
□ This will be an in-person meeting of those directly involved in the weekend’s running. Shift personnel, MOM, system experts on call for the weekend, Operations Coordinator, Spoke/Deputy are required to attend.
□ The meeting will be “like the Hall Meeting”, i.e. you have to be there, there will not be a phone connection. The focus will be the operational activities to be carried out that weekend.
• Mondays, 15:00:
□ This will be an in-person meeting for those directly involved in the weekend’s running, with phone connection to allow remote participation.
□ The focus of the Monday meeting will be to review progress and problems, to identify items that require work and to begin the planning of the following weekend.
With the construction, operations and analysis leads, I discussed what a block diagram for User Runs 2014(03) and 2015(01) might look like. The result, which we need to discuss and refine at the collaboration meeting, is: • User Run 2014(03); “now” to 01May15: ○ MICE Muon Beam commissioning; ○ TOF2, KL, EMR commissioning with beam; ○ Alignment and calibration; • User Run 2015(01a): 02Jun15 to 05Jul15; ○ Tracker commissioning with beam in parallel to magnet training; Obviously more detail is required; Chris Rogers has agreed to organise a meeting in March at which the various inputs to the detailed run plan will be discussed. Looking forward to our discussions at the collaboration meeting next week;
Steady progress has been made towards the completion of Step IV. Examples of the tasks completed this week include: load tests on the PRY tie-downs; installation of the new optical fibres for the target and the junction boxes inside and outside the sync; and the fitting of cable-tray covers to the South Mezzanine. Work in Rack Room 2 progresses steadily too with the dump-circuits wired in and many of the large cables terminated.
The PPS annual functional test was carried out on Wednesday. This was a long day for those involved (Craig Macwaters, Henry Nebrensky and Phil Warburton). The test went well and the system was passed as functionally correct. A number of issues have been identified which will need to be addressed in the coming weeks.
Work to define, and then address, the issues noted in the 21Jan15 mock data-run is in hand. Chris Rogers completed the MICE Note summarising the run and documenting the issues to be addressed (MICE Note 456). Pierrick Hanlet as MOM is now helping to organise the work required to address the issues; particularly those for which coordination with the construction team or between detector groups is required. Its encouraging to note that a number of issues have already been resolved and that the number of issues that require cross-team coordination is low.
The near future:¶
The first set of PRY legs are now expected to arrive at RAL next week. The receipt and installation of the legs on the north side will then begin. Once the north-side installation has been completed, the legs will be removed so that the magnets can be moved to the parked position to allow the legs to be mounted in their final Step IV positions on the south side.
The PRY plates are scheduled to arrive at RAL with the second set of legs on 16Mar15. To expedite the installation of the PRY, the project team have decided to begin two-shift working from 16Mar15. The necessary technical and engineering effort has been secured. Roy Preece, Andy Nichols, Jason Tarrant and John Govans are now making the detailed plans necessary to make this, the final push in the installation of Step IV, a success.
The knock on effect to the run proposed for the 08Mar15 is that it has been necessary to scale back the ambitions. The plans for operations until the end of User Run 2015(01) are now:
○ MICE has been allocated two shifts (08:30-16:30 and 16:30-24:00) during which we may take beam into the Hall. ○ In view of the construction schedule and pressure on individuals it has been agreed to take data using the beam-line instrumentation as far as TOF I. • The positions of the instrumentation, the magnets and other equipment downstream of TOF I will be as required for the installation of the PRY. TOF1, and the equipment upstream of TOF1 is unaffected by the PRY activities. ○ The revised goals for operation on the 08Mar15 are to: • Time-in and commission the MICE target in the 700 MeV ISIS beam; • Time-in and commission the MICE DAQ, controls etc. and detectors up to TOF1; • Leave the experiment in such a state that alignment/calibration of the detectors up to TOF1 could begin. ○ Planning for the day so far is: • Lock and search Hall at the end of the construction work on Friday 06Mar15; • 08:00 on 08Mar16: □ Prepare for operation; • 10:00—22:00 on 08Mar16: □ Operation of the experiment; the run plan will be prepared by the MOM; • 22:00 (latest) on 08Mar16: □ Operations cease to allow … • 22:00-23:59 on 08Mar16: □ Close down Hall ready so that it is ready for the construction team to start on Monday 09Mar15.
On Thursday and Friday we fully trained 12 new shifters and 3 additional partially trained shifters.
Many contributed to the training; I would like to thank:
- Chris Rogers for initial preparations
- Rose Hayes for arranging RAL inductions
- Henry Nebrensky for general invaluable help and assistance in organization
- Chris Heidt, Adam Dobbs, Rhys Gardener, Ed Overton, Henry Nebrensky, John Govans for shifter training
Several things were learned from shifter training by the experts and these will need to be resolved before the next
training session; the MOM and Steve will address them.
Bravo to all involved and on to Step IV data taking!
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