The solenoid is in R9 now. The first operation will be some basic electrical tests, then any remedial work thought necessary on the HTS leads in light of the investigations on SS1, then it should be all clear for the tracker installation.
The refurbishment work on tracker 1 and tracker 2 has now been completed in the the new tracker lab, including retro-fitting an LED calibration system. Both trackers now await installation in the spectrometer solenoids.
Don Summers reports that
Eleven crates with six tons of RF equipment from Mississippi have now arrived in the United Kingdom at MICE including everything needed for the TIARA test.
Many thanks to everyone for their help.
Bill of Materials:
291 MEGA RF transmission lines, elbows, heliaxes, crossovers...
11 Altronic 200 kiolowatt RF dummy loads
10 Dimtel LLRF4 Amplifier Controller Boards
4 B1300 Capacitorr SAES Getter Vacuum Pumps
After a final two days of running over the weekend, the EMR commissioning run is now complete. In spite of a few issues with the DAQ configuration, we now have data with all Step I detectors in operation.
Arrived safely and is in the R55 reception area now. The plan is to move it into R9 for the tracker installation.
The R89 Data Centre is required to upgrade the UPS (Uninterruptible PowerSupply) room in order to support the current and future demands on power supply. The upgrade will enable an increase in supply from 400amps to 630amps.
This upgrade will take place on 05 November, and in order to minimise the effect on STFC critical IT services they will be connected via an alternate power supply. There will be some short disruptions whilst these supplies are being connected and removed, impacting on access to; internet, SharePoint, web servers and Scientific Computing services.
In order to fulfil the health and safety legislative requirements for running a Data Centre, we are required to test our power connections every 3-5 years. This work will be carried out over 05 and 06 November. The Data Centre will be running at risk during this period.
Email for the RAL site will be managed and run from Daresbury from 01 November onwards.
Impact of the work¶
On the morning of the 05 November between the hours of 06:30 and 08:00, the STFC core networking equipment will be connected to the alternate power supply. This will cause a short disruption to; internet, SharePoint, web servers and Scientific Computing services. Any further problems after this time will be communicated.
Once the work has been completed (approx 14:00), the networking equipment will be re-connected to the main power supply, again, this will cause a short disruption to; internet, SharePoint, web servers and Scientific Computing services. Any further problems after this time will be communicated.
It is not anticipated that the power testing work will cause any disruption to the IT services listed above. But in the unlikely event that this does occur, it will be communicated.
Over the weekend we took a full momentum scan using electron and pion beams to explore the behaviour of the EMR.
This would not have been possible without the EMR visualization software provided by Ruslan and Yordan's diligent work through Thursday and Friday.
What a week!
arrived and has been running Oxfordshire cosmics from last Tuesday. MICE colleagues can find nice photos and event displays here
Installation was completed on Wednesday and the integration of the EMR into the MICE DAQ is on going. Some data have been collected using TOF calibration beam line settings to sort out the bugs in the system.
Momentum scans to be made next weekend
The first spectrometer solenoid "SS2" should by now be in the UK and is expected at RAL on 14 October
The AFC#2 arrived on Friday morning at RAL.
SS1 has begin training
Message from Alain Blondel¶
we are coming out of the board marathon.
7-8 May Resource Loaded Schedule Review (RSLR)
9 May MICE project board (our slides can be found here
https://indico.cern.ch/conferenceDisplay.py?confId=249272 ) and today the Funding Agency Committee
The MICE collaborators have done a tremendous amount of preparation for this and I think it went quite well.
I enclose the reports that Ian Robson (chair of the RLSR) and Steve Peggs (chair of the MPB) gave to the funding agency, as well as my 'open' summary.
As you will see, the appreciations are positive but the homework is very significant!
Thank you all again for the enthusiasm and hard work
The reports refered to can be found at
The dates for the EMR run are 15 July - 8 August.
We will need a significant number of people to run shifts in this period.
The revised MICE rules means that people cannot take shifts without been trained.
Details of training and signup will be announced shortly.
Spectrometer Solenoid update (23 February)¶
Yesterday was a good day. SS2 reached a new high current value to date.
There was a trip earlier in the day due to the welder turning on his equipment. We recovered
from the quench and immediately began another training run. In the end we had:
A normal quench ended the run. We are now 10A from the peak value and only 5A from
the Flip mode values where we will hold the current for 24 hours. We have sufficient He
for 4 more quenches, so this will not be a bottleneck. Perhaps today will be the day.
Date of the second update is February 19th and not 1th
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