Meeting 29 June 2012

Added by Tunnell, Christopher almost 7 years ago

-- minutes and Actions (Chris Tunnel)

-- matters arising from TB (Nichols)

-- other matters arising from the collaboration meeting
-- schedule slide
-- magnetic shielding

-- WBS

-- personnel issues during
commissionning and
operation (Linda)
Could Andy summarize what is needed for running the LH2?

-- Coupling Coils construction plan (SteveG, Alan, Alain)
-- Alain will prepare a slide explaining the CERN proposal
-- could Alan and Steve do the same for Fermilab and LBNL?

-- VCs and collaboration meeting (Linda, Vittorio)

-- MICE papers (Maurizio)
very brief as this was discussed in the plenary
-- speakers board (Vittorio)
very brief as this was discussed in the plenary
-- AOB


Added by Tunnell, Christopher almost 7 years ago

From Andy:

I have to apologise - I need to be at the ISIS LH2 WG meeting this afternoon. My brief notes for agenda item two:

slippages of FC & SS noted but under control
Diffuser controls targets required
DAQ milestones required for next MICO
MICE TB/EB needs to decide soon on November run - planning for Decay solenoid critical
Specific Step IV key milestones required for Gail's table

Magnetic shielding:

Mike - make list of equipment field sensitive equipmemnt - and identify shortfall - visit people if necessary

Tracker racks cannot be re-located, was studied five years ago. Baseline is tracker stuff stays put, but has to be shielded

Local pseudo-yoke on magnets to be studied by US MICE - prelimnary idea shows 0.75m^3 of iron required for SS, but need to be aware of effects on individual coils.

Two questions from JC:
Difference between flip & non-flip at Step IV? - Mike report at next TB
Effect of deleting shield walls completely - Mike, ditto

Coupling magnet - Steve Gourlay:

MICE magnet construction plan under construction, but assembly in US, good offer received from LBL shops to manufacture parts

Need to explore option of doing RFCC integration only once, IE at RAl for MICE magnets.

Possibility of testing at LBNL, but likely stray field problems

CERN have submitted tentative offer for magnet building - more work needed to understand scope, Alain will follow up as part of CERN's contribution.

Mark Palmer and Steve Gourlay are working on plan for magnet construction based on best option for costs, geography, schedule and risk mitigation-aim ready for MPB in August.


Added by Tunnell, Christopher almost 7 years ago

More Andy:

Just noticed the bit about me summarising the LH2 operation staff. It's too early to comment in detail,
but my idle thoughts are:

1. By the time Step IV begins we need to have a full time run co-ordianator, or person of similar job description, who is resident at RAL all the time. To me, this is the key. That person will be accountable for the day-to-day running. This does not necessarily replace the MOM idea, but we must have a full time person who is well-versed in STFC safety culture

2. It is clear from negotiations with STFC that we will have to 'grow' at least two expert operators, preferably from within the project with experience in cryogenic and controls engineering. The specific expertise with hydrogen will develop as we execute the R&D exercise, along with other opportunities I'm sure.

3. The resource-loaded operational plan has been asked for at the MPB in October and will include the above.



Added by Tunnell, Christopher over 6 years ago


  • Alain Blondel
  • Linda Coney
  • Steve Gourlay
  • Yagmur Torun
  • Alan Bross
  • Mark Palmer
  • Daniel Kaplan
  • Vittorio Palladino
  • Ken Long

Unscheduled AOB

The collaboration meeting could have been compressed.

Speaker's board

Speaker's board discussed in collaboration meeting. For talks from the collaboration, there is going to be a list of deserving people for conference talks. Conferences cannot come from the common fund by UK rules.

LBNL cryostat fabrication estimate

Parts of the cryostat would be manufactured at LBNL before being sent to CERN or FNAL (TBD). This is building the cryostat from scratch. The cooling circuit and shield are not included. There is a coil wrapped at Qihuan.

This is 601 k USD for the first vacuum vessel. Somewhere between 400-500 for the next two.

Install the components at FNAL, CERN, etc.. Need 22 feet crane clearance to assemble by putting cold mass into cryostat. The cost of assembling the magnets at FNAL is 2 M USD for the first, 1.8 M USD per 2nd 3rd. This cost is personnel and M&S.

The entire cost for all three CC at FNAL is around 10 M USD for FY12 through FY15: includes the cryostat, the cold mass preparations, and the winding test. The costs are fully burdened.

If there is a major problem, there is a fall back of Step 5. If the first cold mass doesn't reach operating current, it can be sent to MuCool to run and diagnose.

Risks are cash flow and resources.

At CERN, ten Kate says the following: "Wound by Qihuan, tested by SC test facility at FNAL, then send to CERN. Expect 1.2 M CHF +/- 200 kCHF over 18 months for two CCs. This includes free manpower though."

There is more technical risk doing this at CERN since there are then more groups of people involved: more potential slippage, cost, etc..

The preference is to do it all at Fermilab despite the price. However, if the US is willing to send the money abroad, then a roughly 1 M CHF in-kind contribution from CERN would save money.

The team sizes are small and are about 2 technicians plus a design drafter.

Personnel Requirements from Andy

Reviewing Andy's second email. This requests for three new people where cryogenic and controls engineers are provided by the lab so is more of a UK issue. A run co-ordinator is also needed.

The run coordinator needs to know everything: the hardware, software, people in the analysis group. The Cleo/CESR model is to have professional shifters.

Linda Coney to write a proposal on how operations will be run including a man-power tree of how the head of operations, MOM, run coordinator, and any professional shifters or engineers fit together. Job descriptions. Agree on the structure and then figure out what names fill each role.

RAL or the common fund could do a subsistence to visiting scientists. Still need to investigate house: people who live at RAL for a year won't want to live with shifters.



Magnetic shielding

Need to prevent stray fields which appear as though this is going to be a problem. We are focusing at the moment on Step 4 since we can't risk that being delayed. It's best to deal with the shielding around the beam line to prevent having to replace, for example, the PPS.