Attendees:
Alex Wallace Jing Yin Peregrine McGehee Gregory Brent Nate Landis Jason Bender Hill, Elizabeth Vinod Gopalan Jasmine, Nguyen Mitchell Cabral
Action Items:
Description | Due date | Assignee | Task appears on |
---|---|---|---|
| 2024-07-11 MEC-U Project Controls and Data Systems Team Meetings | ||
| MEC-U Collective Team Meetings | ||
| MEC-U Collective Team Meetings | ||
| MEC-U Collective Team Meetings | ||
| Omar Quijano | 2023-02-21 MEC-U Project Controls and Data Systems Team Meetings | |
| Terzi, Ken | 2023-02-21 MEC-U Project Controls and Data Systems Team Meetings | |
| Jing Yin | 2023-02-07 MEC-U Project Controls and Data Systems Team Meetings | |
| Alex Wallace | 2022-4-5 MEC-U Project Controls and Data Systems Team Meeting |
Topics:
Agenda Item | |
---|---|
Mitchell Cabral | Introduction to Peregrine and Janez |
iCal EPCS | |
Setpoint API WG update | |
LLE EMP | |
Ciara Servers | |
TPR Specs |
Minutes:
iCal EPCS:
- We want to send some people to iCal EPCS to represent MEC-U.
- iCal EPCS will be in-person in October in South Africa.
- LLNL is planning to have some presence in regards to MECU
- LLE will chew on this item.
- Alex is planning to visit on the MECU train.
Setpoint API/Configuration Storage
- No requirement operationally to command and converge on setpoints in a narrow timescale.
- Action items to look into existing EPICS management systems at other systems.
- SCORE. Used pretty extensively for storage and management tool by the Accelerator Directorate.
- ATEF would come into play when doing preliminary checks before items
Vision System in RRL:
- Potential solutions for real time damage detection in the rep rated system.
- Preliminary camera counts
- SLAC learned how that system is managed now at NIF
- SLAC has some action items for finding existing examples of architectures that are similar
- One example is a camera that looks inside a cathode for thermal visualization rather than protection.
- Requirements are that it needs to operate at sub-10Hz and operates in real time.
LLE EMP-protection:
- Depends on where in the system.
- If they see some EMP issues that take out encoders, they will add some EMI protector to the circuit board.
- Proximity to source of EMI, LLE can send.
- In cases where we are really close to, they had to go to open loop.
- 3kV per meter was the threshold. (approximate)
- Most affective was brushless motors with HAL sensors for commutation
- grounding document for OMEGA EP.
- Most things on the chamber are powered down to ground, servos are also powered down because encoders looked like they were running on. Active servo-ing was turned off.
- Generally its distance to shield from EMP and Neutrons, local relay disconnect box to disconnect wires mounted to target chamber. Disconnect and short all devices to local ground.
- 30 inches of concrete protect chamber from basement.
- Usually use belldom shielding cabling.
- What we really need to know, what is the susceptibility of our equipment to the EMP.
- LVDT were used on cryogen system, but they were too noisy for them.
Ciara Server:
- Custom job by company now called HyperTech.
- Confluence Stub
TPR Specification:
- Still needs a stub. Jing Yin
- Number of outputs on the TPR cards
- 12 universal outputs (LVTTL or TTL)
- This page may be helpful (EVR and TPR info)
Action Items:
- Nate Landis to send information on LLE motors and encoders/info that they use to mitigate EMP damage.
- Jing Yin TPR Card Specification Stub (Specific question from Ken: Number of outputs for TTL? LVTTL or TTL? Both?)