Solenoid Ramping Shift
When powered with the maximum current of 1350 A, the solenoid generates a field close to 2 Tesla in the bore. The full inductance of the solenoid is about 26 H.
Routine Operation
As the superconducting solenoid is very complex system, the operation of such system requires a lot of knowledge and experiences. The commissioning, troubleshooting, tuning of ground fault and quench detectors, Power ON and OFF, change current will be conducted by authorized experts only.
The responsibilities of the shift workers include:
- Monitor the overall status of the solenoid: current, field, interlocks, voltages, cryogenic levels etc.
- Notify experts when anomalies happen.
- Ramp the magnet per request of run coordinator.
- Make log entries to the HDLOG and HDSOLENOID logbooks.
When the Solenoid Trips
- Call Mechanical On-Call (757-544-7258) every time when the power supply trips!
- DO NOT clear interlock status or attempt to change MPS state before the Solenoid On-Call responses!
- Make screen shots of Solenoid status and post them to the HDLOG and HDSOLENOID logbooks: Interlock, MPS, Voltage, Cryo, Vacuum, Strain Gauge.
Expert personnel
The individuals responsible for checking that the solenoid is ready to take data and setting its operating parameters are shown in following table. Problems with normal operation of the solenoid should be referred to those individuals and any changes to their settings must be approved by them. Additional experts may be trained by the system owner and their name and date added to this table.
Name | Extension | Cellphone | Pager | Date of qualification |
---|---|---|---|---|
Mechanical On-Call | 544-7258 | Nov 10, 2014 | ||
George Biallas - Solenoid | 269-7535 | 813-1179 | [1] | June 12, 2014 |
Yi Qiang - Solenoid/PXI | 269-7237 | 358-2146 | [2] | June 12, 2014 |
Mark Stevens - Power Supply | 269-6383 | 318-1576 | [3] | June 12, 2014 |
Scot Spiegel - MPS/Solenoid | 536-5900 | [4] | June 12, 2014 | |
Jonathan Creel - Cryogenics | 269-5925 | 869-8910 | [5] | June 12, 2014 |
Dave Butler - PLC | 329-2583 | 329-2583 | [6] | June 12, 2014 |
Carroll Jones - LCW | 876-1778 | 876-1778 | [7] | Nov 14, 2014 |