1. Spectrometer Solenoid Update Steve Gourlay Steve Virostek Lawrence Berkeley National Lab Steve Gourlay Steve Virostek Lawrence Berkeley National Lab MICE CM35 RAL/Abingdon February 14, 2013 MICE CM35 RAL/Abingdon February 14, 2013

2. LBNL MICE CM35 14 February 2013 - 2 -- 2 - Spectrometer Solenoid Update  Steve Gourlay  LBNL TopicsTopics Control system upgrade Control system upgrade Latest magnet training results Latest magnet training results Summary of 2nd magnet progress Summary of 2nd magnet progress Schedule Schedule Control system upgrade Control system upgrade Latest magnet training results Latest magnet training results Summary of 2nd magnet progress Summary of 2nd magnet progress Schedule Schedule

3. LBNL MICE CM35 14 February 2013 - 3 -- 3 - Spectrometer Solenoid Update  Steve Gourlay  LBNL Control System Upgrade A control system review was held at LBNL on December 11 th and 12 th, 2012 A control system review was held at LBNL on December 11 th and 12 th, 2012 The LBNL/MICE team has responded to the numerous recommendations from the review panel The LBNL/MICE team has responded to the numerous recommendations from the review panel The main goal was to move towards a more robust system capable of preventing a repeat of the ice blockage and other potential failures The main goal was to move towards a more robust system capable of preventing a repeat of the ice blockage and other potential failures A secondary goal was to move closer to the final system that will be operated in the MICE hall A secondary goal was to move closer to the final system that will be operated in the MICE hall A control system review was held at LBNL on December 11 th and 12 th, 2012 A control system review was held at LBNL on December 11 th and 12 th, 2012 The LBNL/MICE team has responded to the numerous recommendations from the review panel The LBNL/MICE team has responded to the numerous recommendations from the review panel The main goal was to move towards a more robust system capable of preventing a repeat of the ice blockage and other potential failures The main goal was to move towards a more robust system capable of preventing a repeat of the ice blockage and other potential failures A secondary goal was to move closer to the final system that will be operated in the MICE hall A secondary goal was to move closer to the final system that will be operated in the MICE hall

4. LBNL MICE CM35 14 February 2013 - 4 -- 4 - Spectrometer Solenoid Update  Steve Gourlay  LBNL Control System Upgrade Some of the more important upgrades: Incorporated a stand alone PID controller for the cold mass heater circuit w/current monitor Incorporated a stand alone PID controller for the cold mass heater circuit w/current monitor Added an alarm handler to the control software Added an alarm handler to the control software Installed a gas bottle backup system to prevent negative cold mass pressures; improved durability of pressure relief valves Installed a gas bottle backup system to prevent negative cold mass pressures; improved durability of pressure relief valves Added current shunts to directly measure the current going into the coils Added current shunts to directly measure the current going into the coils Some of the more important upgrades: Incorporated a stand alone PID controller for the cold mass heater circuit w/current monitor Incorporated a stand alone PID controller for the cold mass heater circuit w/current monitor Added an alarm handler to the control software Added an alarm handler to the control software Installed a gas bottle backup system to prevent negative cold mass pressures; improved durability of pressure relief valves Installed a gas bottle backup system to prevent negative cold mass pressures; improved durability of pressure relief valves Added current shunts to directly measure the current going into the coils Added current shunts to directly measure the current going into the coils

5. LBNL MICE CM35 14 February 2013 - 5 -- 5 - Spectrometer Solenoid Update  Steve Gourlay  LBNL Power Supplies and Control Power Supplies New 500 A supply for center and end coils New 500 A supply for center and end coils 5 supplies fully integrated 5 supplies fully integrated Tested both into a short and into the cold magnet Tested both into a short and into the cold magnet Control rack Many upgrades installed Many upgrades installed UPS added UPS added New heater control loop New heater control loop Power Supplies New 500 A supply for center and end coils New 500 A supply for center and end coils 5 supplies fully integrated 5 supplies fully integrated Tested both into a short and into the cold magnet Tested both into a short and into the cold magnet Control rack Many upgrades installed Many upgrades installed UPS added UPS added New heater control loop New heater control loop

6. LBNL MICE CM35 14 February 2013 - 6 -- 6 - Spectrometer Solenoid Update  Steve Gourlay  LBNL Recent Activity Lots of help – much appreciated!

7. LBNL MICE CM35 14 February 2013 - 7 -- 7 - Spectrometer Solenoid Update  Steve Gourlay  LBNL Recent Effort by Many People Many people have come to Wang NMR to help with system preparation and training: Control system: Steve Griffiths, Ian Mullacrane, Adrian Oates (Daresbury) Control system: Steve Griffiths, Ian Mullacrane, Adrian Oates (Daresbury) Control software: Pierrick Hanlet (FNAL) Control software: Pierrick Hanlet (FNAL) Quench system: Roman Pilipenko (FNAL) Quench system: Roman Pilipenko (FNAL) Cooldown: Heng Pan, Tianhuan Luo, Allan DeMello, Andrew Lambert, Nanyang Li, Steve Virostek (LBNL) Cooldown: Heng Pan, Tianhuan Luo, Allan DeMello, Andrew Lambert, Nanyang Li, Steve Virostek (LBNL) Training: Linda Coney, Maria Leonova (FNAL); Heng Pan, Tianhuan Luo, Etienne Rochepault, Steve Virostek (LBNL) Training: Linda Coney, Maria Leonova (FNAL); Heng Pan, Tianhuan Luo, Etienne Rochepault, Steve Virostek (LBNL) And numerous others behind the scenes And numerous others behind the scenes Many people have come to Wang NMR to help with system preparation and training: Control system: Steve Griffiths, Ian Mullacrane, Adrian Oates (Daresbury) Control system: Steve Griffiths, Ian Mullacrane, Adrian Oates (Daresbury) Control software: Pierrick Hanlet (FNAL) Control software: Pierrick Hanlet (FNAL) Quench system: Roman Pilipenko (FNAL) Quench system: Roman Pilipenko (FNAL) Cooldown: Heng Pan, Tianhuan Luo, Allan DeMello, Andrew Lambert, Nanyang Li, Steve Virostek (LBNL) Cooldown: Heng Pan, Tianhuan Luo, Allan DeMello, Andrew Lambert, Nanyang Li, Steve Virostek (LBNL) Training: Linda Coney, Maria Leonova (FNAL); Heng Pan, Tianhuan Luo, Etienne Rochepault, Steve Virostek (LBNL) Training: Linda Coney, Maria Leonova (FNAL); Heng Pan, Tianhuan Luo, Etienne Rochepault, Steve Virostek (LBNL) And numerous others behind the scenes And numerous others behind the scenes

8. LBNL MICE CM35 14 February 2013 - 8 -- 8 - Spectrometer Solenoid Update  Steve Gourlay  LBNL Working on Both Magnets TrainingTraining AssemblyAssembly

9. LBNL MICE CM35 14 February 2013 - 9 -- 9 - Spectrometer Solenoid Update  Steve Gourlay  LBNL Current Progress Magnet has been successfully cooled down, and training is now under way Magnet has been successfully cooled down, and training is now under way All five power supplies are being used at various ramp rates and under computer control All five power supplies are being used at various ramp rates and under computer control New cold mass heater control loop working well New cold mass heater control loop working well Three training quenches are now complete Three training quenches are now complete Three unrelated issues have caused premature quenches during training: failed contactor relay, short circuit in charging circuit, trim supply control issue Three unrelated issues have caused premature quenches during training: failed contactor relay, short circuit in charging circuit, trim supply control issue These problems all appear to have been remedied These problems all appear to have been remedied Magnet has been successfully cooled down, and training is now under way Magnet has been successfully cooled down, and training is now under way All five power supplies are being used at various ramp rates and under computer control All five power supplies are being used at various ramp rates and under computer control New cold mass heater control loop working well New cold mass heater control loop working well Three training quenches are now complete Three training quenches are now complete Three unrelated issues have caused premature quenches during training: failed contactor relay, short circuit in charging circuit, trim supply control issue Three unrelated issues have caused premature quenches during training: failed contactor relay, short circuit in charging circuit, trim supply control issue These problems all appear to have been remedied These problems all appear to have been remedied

10. LBNL MICE CM35 14 February 2013 - 10 - Spectrometer Solenoid Update  Steve Gourlay  LBNL Problem Fixes Contactor relay It appears the faulty relay had been cycling when the magnet was warm and eventually wore out It appears the faulty relay had been cycling when the magnet was warm and eventually wore out The unit was replaced by the Daresbury team, and there have been no problems since The unit was replaced by the Daresbury team, and there have been no problems since Charge/discharge circuits Short circuits were discovered in two of the units between the diodes and the heat sink block Short circuits were discovered in two of the units between the diodes and the heat sink block All four units were rebuilt: disassemble, contacts cleaned, replace Kapton film, reassemble, torque bolts, checkout All four units were rebuilt: disassemble, contacts cleaned, replace Kapton film, reassemble, torque bolts, checkout Trim supply control Control system reboot appears to have fixed problem Control system reboot appears to have fixed problem Contactor relay It appears the faulty relay had been cycling when the magnet was warm and eventually wore out It appears the faulty relay had been cycling when the magnet was warm and eventually wore out The unit was replaced by the Daresbury team, and there have been no problems since The unit was replaced by the Daresbury team, and there have been no problems since Charge/discharge circuits Short circuits were discovered in two of the units between the diodes and the heat sink block Short circuits were discovered in two of the units between the diodes and the heat sink block All four units were rebuilt: disassemble, contacts cleaned, replace Kapton film, reassemble, torque bolts, checkout All four units were rebuilt: disassemble, contacts cleaned, replace Kapton film, reassemble, torque bolts, checkout Trim supply control Control system reboot appears to have fixed problem Control system reboot appears to have fixed problem

11. LBNL MICE CM35 14 February 2013 - 11 - Spectrometer Solenoid Update  Steve Gourlay  LBNL Charge/discharge Circuits

12. LBNL MICE CM35 14 February 2013 - 12 - Spectrometer Solenoid Update  Steve Gourlay  LBNL Recent Training Runs HTS lead failure After warmup, HTS lead replace and cooldown After warmup, control sys mods, and cooldown

13. LBNL MICE CM35 14 February 2013 - 13 - Spectrometer Solenoid Update  Steve Gourlay  LBNL 2 nd Magnet Progress The second cold mass/shield assembly is now complete - in the vacuum vessel, MLI wrapped The second cold mass/shield assembly is now complete - in the vacuum vessel, MLI wrapped Benchtop assembly of the vacuum vessel tower is nearing completion – delayed by availability of additional cryocooler sleeves Benchtop assembly of the vacuum vessel tower is nearing completion – delayed by availability of additional cryocooler sleeves LBNL mechanical technicians playing a key role in assembly – currently affected by ALS shutdown LBNL mechanical technicians playing a key role in assembly – currently affected by ALS shutdown Cryocooler tests are also under way – 4 coolers purchased by U. Miss., test of 2X length hoses Cryocooler tests are also under way – 4 coolers purchased by U. Miss., test of 2X length hoses The second cold mass/shield assembly is now complete - in the vacuum vessel, MLI wrapped The second cold mass/shield assembly is now complete - in the vacuum vessel, MLI wrapped Benchtop assembly of the vacuum vessel tower is nearing completion – delayed by availability of additional cryocooler sleeves Benchtop assembly of the vacuum vessel tower is nearing completion – delayed by availability of additional cryocooler sleeves LBNL mechanical technicians playing a key role in assembly – currently affected by ALS shutdown LBNL mechanical technicians playing a key role in assembly – currently affected by ALS shutdown Cryocooler tests are also under way – 4 coolers purchased by U. Miss., test of 2X length hoses Cryocooler tests are also under way – 4 coolers purchased by U. Miss., test of 2X length hoses

14. LBNL MICE CM35 14 February 2013 - 14 - Spectrometer Solenoid Update  Steve Gourlay  LBNL 2 nd Magnet Progress Cryocooler testing

15. LBNL MICE CM35 14 February 2013 - 15 - Spectrometer Solenoid Update  Steve Gourlay  LBNL 2 nd Magnet Progress Benchtop assembly of 2 nd magnet tower

16. LBNL MICE CM35 14 February 2013 - 16 - Spectrometer Solenoid Update  Steve Gourlay  LBNL ScheduleSchedule Cooldown completed at the end of January Cooldown completed at the end of January Training and magnetic measurement likely continue into early March Training and magnetic measurement likely continue into early March 2 nd unit assembly expected to be complete in April – training to follow shortly after 2 nd unit assembly expected to be complete in April – training to follow shortly after Current schedule calls for both magnets to be delivered to RAL in early August ‘13 Current schedule calls for both magnets to be delivered to RAL in early August ‘13 2 nd magnet progress affected by 1 st magnet training and LBNL tech availability 2 nd magnet progress affected by 1 st magnet training and LBNL tech availability Cooldown completed at the end of January Cooldown completed at the end of January Training and magnetic measurement likely continue into early March Training and magnetic measurement likely continue into early March 2 nd unit assembly expected to be complete in April – training to follow shortly after 2 nd unit assembly expected to be complete in April – training to follow shortly after Current schedule calls for both magnets to be delivered to RAL in early August ‘13 Current schedule calls for both magnets to be delivered to RAL in early August ‘13 2 nd magnet progress affected by 1 st magnet training and LBNL tech availability 2 nd magnet progress affected by 1 st magnet training and LBNL tech availability