# Presentation: 846082

## Notes from Tom’s visit

- Controls is under-staffed
- Common Diagnostics platforms (BPM, FCT, DCCT, BLM,...)
- Where possible, ‘Smart’ Diagnostics, running EPICS locally
- Define Controls/Diagnostics interfaces ASAP
- AP identifies machine and beam modes
- AP and Diagnostics collaborate on PVs
- Write down ‘global naming convention’
- Modes communicated via EPICS on 1 Hz event
- Clear statement of MPS requirements for commissioning
- ‘Simple’ timing system appears feasible
- Single camera for all imaging applications
- Prioritize Diagnostics
- Generate Systems Brochures/Interface Control Documents
- Collaborations – LLRF, NSLS-II, ...
- Controls and Diagnostics reviews ~October

## Beam modes – preliminary draft for discussion

| Beam mode | Bunch charge [nC] | Rep rate [MHz] | Beam current [mA] |
| --- | --- | --- | --- |
| Tune up  | 0.1-1.4 | 10-6-9.383 | 10-7-14 |
| Low charge | 1.4 | 9.383 | 14 |
| High current | 1.4/0.7 | 351.88-703.76 | 500 |
| High charge | 5 | 9.383 | 50 |

| Machine mode | max current [mA] | comments |
| --- | --- | --- |
| 0 - no beam | 0 |  |
| 1x - pepper pot  | .00003? | 1st dipole off, Diags to pp enabled |
| 2x - aux line | .00003? | 3rd dipole off, Diags to aux line enabled |
| 3x - gun-to-Dump | 500? | 5 cell off or zero-phased, Diags enabled |
| 4x - recirculating | 500? | Diags enabled |
| 5x - AP special studies?? | ?? | Quad scans, difference orbits,??? |
| x0 - no intercepting | 500? | Flag (and scraper?) inputs to beam permit |
| x1 - Profile (phosphor) | .00003? | FCT and DCCT inputs to permit |
| x2 - Profile (transition) | 0.1? | FCT and DCCT inputs to permit |

- Machine modes – preliminary draft for discussion

## Notes from Tom’s visit

- Controls is under-staffed
- Common Diagnostics platforms (BPM, FCT, DCCT, BLM,...)
- Where possible, ‘Smart’ Diagnostics, running EPICS locally
- Define Controls/Diagnostics interfaces ASAP
- AP identifies machine and beam modes
- AP and Diagnostics collaborate on PVs
- Write down ‘global naming convention’
- Modes communicated via EPICS on 1 Hz event
- Clear statement of MPS requirements for commissioning
- ‘Simple’ timing system appears feasible
- Single camera for all imaging applications
- Prioritize Diagnostics
- Generate Systems Brochures/ICDs
- Collaborations – LLRF, NSLS-II, ...
- Controls and Diagnostics reviews ~October

## Slide 4

## Slide 5

## Notes from Tom’s visit

- Controls is under-staffed
- Common Diagnostics platforms (BPM, FCT, DCCT, BLM,...)
- Where possible, ‘Smart’ Diagnostics, running EPICS locally
- Define Controls/Diagnostics interfaces ASAP
- AP identifies machine and beam modes
- AP and Diagnostics collaborate on PVs
- Write down ‘global naming convention’
- Modes communicated via EPICS on 1 Hz event
- Clear statement of MPS requirements for commissioning
- ‘Simple’ timing system appears feasible
- Single camera for all imaging applications
- Prioritize Diagnostics
- Generate Systems Brochures/ICDs
- Collaborations – LLRF, NSLS-II, ...
- Controls and Diagnostics reviews ~October

## BPM (also FCT, DCCT, BLM,...) Block Diagram

## Notes from Tom’s visit

- Controls is under-staffed
- Common Diagnostics platforms (BPM, FCT, DCCT, BLM,...)
- Where possible, ‘Smart’ Diagnostics, running EPICS locally
- Define Controls/Diagnostics interfaces ASAP
- AP identifies machine and beam modes
- AP and Diagnostics collaborate on PVs
- Write down ‘global naming convention’
- Modes communicated via EPICS on 1 Hz event
- Clear statement of MPS requirements for commissioning
- ‘Simple’ timing system appears feasible
- Single camera for all imaging applications
- Prioritize Diagnostics
- Generate Systems Brochures/ICDs
- Collaborations – LLRF, NSLS-II, ...
- Controls and Diagnostics reviews ~October

## Brochure example – SNS BLM

**Brochure example – SNS BLM**

## ICD example – SNS BPM 1

## ICD example – SNS BPM 2

## ICD example – SNS BPM 3

## Notes from Tom’s visit

- Controls is under-staffed
- Common Diagnostics platforms (BPM, FCT, DCCT, BLM,...)
- Where possible, ‘Smart’ Diagnostics, running EPICS locally
- Define Controls/Diagnostics interfaces ASAP
- AP identifies machine and beam modes
- AP and Diagnostics collaborate on PVs
- Write down ‘global naming convention’
- Modes communicated via EPICS on 1 Hz event
- Clear statement of MPS requirements for commissioning
- ‘Simple’ timing system appears feasible
- Single camera for all imaging applications
- Prioritize Diagnostics
- Generate Systems Brochures/ICDs
- Collaborations – LLRF, NSLS-II, ...
- Controls and Diagnostics reviews ~October

## Suggestions for upcoming meeting agendas

- July 30th – AP presentation/discussion on beam and machine modes, global naming convention, MPS reqt’s for commissioning
- Aug 6th – joint AP/Diagnostics discussion on Process Variables, Diagnostics Prioritization
- Aug 13th – presentation and discussion of BLM ICD
- Aug 20th – presentation and discussion of BPM ICD
- Aug 27th – presentation and discussion of BCM and DCCT/differential current ICDs
- Sep 3rd – presentation and discussion of Profile ICD (includes pepper pot?)
- Sep 10th – system status – BCM and DCCT
- Sep 17th – system status – BLM
- Sep 24th – system status – BPM
- Oct 1st – system status – Profile (includes pepper pot?)
- Oct 8th – Preparation for Design Review
- Oct 15th – Design Review

## Complication for ‘smart’ systems

- ‘Smart’ systems have embedded PC, will run EPICS locally – BPM, BCM, DCCT, BLM,...
- Still evaluating whether to go with Libera or Xilinx
- DCCT is Xilinx – acceptance testing next month
- Libera demo delayed by I-Tech vendor board manufacturing problems, demo box due late August
- Steep learning curve for Libera box – everything we need to know for Xilinx, plus learning to live with the Libera wrapper
- Libera user’s meeting early September in Slovenia

## Back-up slides

## Injector Diagnostics

## Ring Diagnostics

## Diagnostics Quantities

|  | Gun | Ring | Dump | Total |
| --- | --- | --- | --- | --- |
| BPM | 4 | 10 | 1 | 15 |
| DCCT | 1 | - | 1 | 2 |
| FCT | 1 | - | - | 1 |
| Flag | 2 | 2 | 1 | 5 |
| Wire | 1/1 | 1/1 | 1/1 | 3/3 |
| Scraper | 3 | - | - | 3 |
| Sync. Light | - | 4 | - | 4 |
| Compton | 1 | 1 | - | 2 |
| Streak Cam | - | 1 | - | 1 |
| PMT BLM | 3 | 9 | - | 12 |
| Pin D.  BLMs | - | 8 | - | 8 |
| Heliax  BLMs | - | 4 | 8 | 12 |
| Dump TC | - | - | 1 array | 1 |

## AP Requirements

| Parameter | Range / Expected Value | Accuracy | Resolution | Comments |
| --- | --- | --- | --- | --- |
| Injection Line |  |  |  |  |
| Beam loss (localized) | 0-25 A / <500 nA  | 20% | 5 nA | Beam Loss Monitors |
| Beam position | 1.5 cm | 200 m | 50 m | BPMs |
| Beam Emittance | 2-10 m | 30% | 0.2 m | Pepper Pot |
| Transverse Beam Size | 2-5 mm | 5% | 20 m | Flags (OTR, YAG) |
| Beam Halo |  | 20% | 1 nA | Scraping |
| Bunch Charge | 0.1-10 nC | 5% | 1% | 1% resolution desirable |
| Ghost Bunches | 10 nA @ 10 MHz | 20% | 1 nA  |  |
| Recirculation Loop |  |  |  |  |
| Beam loss (localized) | 0-2500 / <50 nA  | 20% | 0.5 nA | Beam Loss Monitors |
| Beam position | 1.5 cm | 100 m | 20 m | BPMs |
| Bunch RF phase |  | 1o | 0.25o |  |
| Beam Emittance | 2-10 m | 40% | 0.3 m | Quad Scan |
| Transverse Beam Size | 0.1-5 mm | 10% | 5-20 m | Flags (OTR, YAG) |
| Bunch length (Full) | 50-150 psec | 10 psec | 2 psec | Streak Cam, Laser pulse corr. |
| Energy spread | 1% | 1e-3 | 2e-4 | Via transverse size  |
| Beam Current | 0-500 mA | 1% | 0.25A-1% |  |
| Diff. Current Loss | < 1 A | 1% | 0.25A | 2 DCCTs, nulling feedback  |
| Beam Halo |  |  | 1e-6  |  |
| M56 | 20 cm / 0.0 | 10% | 0.5 cm | Longitudinal BTF |