Instrumentation for SPS 2006 restart Outline Update since
- Slides: 16
Instrumentation for SPS 2006 restart • Outline: – Update since OP days 2005 – BI systems needed for start-up – SPS EA status – Pending issues – Conclusion PS/SPS Days 2006 Lars K. Jensen AB/BI/SW 1
Update since OP days 2005 #1 • BI is committed like other AB equipment groups to migrate front-end software towards FESA#2. • BI is different from others as we: – have many different systems (different uses and hardware) who are basically all using MTG timing – have several operational clients developed by AB/OP and AB/CO (LSA, CESAR) Standardization was needed • Motivations for migrating during the long shutdown: – Have spent too much time in the past maintaining instrumentation software – Certain systems needed major hardware and/or software modifications. Some were due to users requirements, others for standardization reasons – FESA #2 is the AB department’s framework and we haven’t got the resources to maintain the previous versions (BISCo. TO etc) – 2005 was our only real chance to do it before the AB complex starts again in 2006 (and after 2006 we will be too busy with LHC) PS/SPS Days 2006 Lars K. Jensen AB/BI/SW 2
Update since OP days 2005 #2 • Good news: – Standard interfaces developed (position, intensity, loss, size) that will make common client developments (LSA, CESAR etc) for FESA#2 servers much easier. This should also mean LHC – Since March 2005, we have worked in close collaboration with AB/OP and AB/CO for the migration of SPS instruments to FESA#2 – We have participated actively in getting the issues solved – We have tested/verified thoroughly the software developed with FESA#2 during 2005 (with beam on PSB/LEIR) PS/SPS Days 2006 Lars K. Jensen AB/BI/SW 3
BI instrumentation for SPS low-intensity start-up • TT 10 alumina BTV screens for real-time observation in the CCC • SEM (for steering and profile) • TTPOS (steering through TT 2 + TT 10) • BCTFI (transfer-line BCT TT 2 + TT 10) • • MOPOS (First-turn and Closed-orbit) BCTSDC (Circulating beam current) Tune measurement system Wire-scanners PS/SPS Days 2006 Lars K. Jensen AB/BI/SW 4
BTV + SEM • TT 10 BTV screens – No changes from BI here since 2004, so no surprises expected – The electronics (and video in the CCC) to be checked by AB/OP during cold check-out • SEM (generic acquisition system) – – – 10 acquisition systems around the SPS. TT 10 steering (TTPOS backup) TT 10 grids (BTV backup) Fixed-target beams in the North area Existing clients (for TT 10 system): • TZ steering and measurement – Status for TT 10: • FESA#2 software running with AB/CO gateway (AB/OP test ASAP) • If results negative, go back to previous version awaiting new LSA software – Same hardware and FESA#2 software will be used for CNGS TBID and Muon detectors (CESAR) – Interest from CESAR to go the FESA#2 way for North Target SEMs also: Implications for TZ steering etc. . PS/SPS Days 2006 Lars K. Jensen AB/BI/SW 5
TTPOS (BPTL) • TTPOS (BPMs in TT 2/TT 10) – Acquire trajectories for all beams into the SPS – Low-level software now simplified (fewer settings) • Beam type changes will hopefully be easier • Beam-type information ? – Remote diagnostics tools as for MOPOS – Existing clients: • TZ steering application – Status: • FESA#2 version of the software in development (expected finished mid-February) • The new Java steering application (TI 8, LEIR etc) expected to be used from the 2006 start-up. • An AB/CO gateway could be installed (as for SEMs) -> TZ steering (after modifications) – Long term: • TTPOS systems difficult to maintain (delays and calibration depend on beam-type) so upgraded during 2006/2007 shutdown (CNGS BPM system). PS/SPS Days 2006 Lars K. Jensen AB/BI/SW 6
Transfer-line Intensity • BCTFI (TT 2 and TT 10) – Used to acquire the intensity for all beams (all injections/extractions): • Into SPS (TT 2 and TT 10) • Fast extracted beams (LHC, CNGS) – Electronics tested during 2004 (including TI 8) – Hardware modifications: • New low bandwidth channel will give ~1% absolute calibration between systems • New sensitivity switch (low/high) to improve resolution for low intensity beams – Beam-type information ? – Existing clients: • Logging (AB/CO) Java and C • Fixed displays (AB/CO) Java and C – Status: • FESA#2 software in development – Deployed during February 2006 PS/SPS Days 2006 Lars K. Jensen AB/BI/SW 7
Orbit system #1 • MOPOS (First-turn + Closed-orbit) – Used to acquire beam signals every turn • Turn-by-turn data • Calculated closed-orbit – Hardware modification #1: • Offset problem with 75 nsec beam: – BPM adapters to be upgraded (ABIC) – Hardware modification #2: • User requirement (cycles >23 secs) – More memory needed which means added difficulties for low-level software – Start-up or later ? (no implication for applications whether we wait or not) PS/SPS Days 2006 Lars K. Jensen AB/BI/SW 8
Orbit system #2 • MOPOS continued: – Existing clients/uses: • SPS orbit program • Beam position interlocks (LSS 4 and LSS 6) • (Multi-turn position) – Status: • FESA#2 software in development – Expected ready by end-February – API discussion soon • System change much less than last time and this time the implementation will be standard, except: • MOPOS system doesn’t fit into FESA#2 – Calibration depends on gain and beam-type – BI solution to handle calibration factors – Beam-type information ? • For the start-up we will provide: – First-turn and closed-orbit measurements. – Multi-turn measurements will come during 2006 MOPOS is the most complicated BI system • Lot of care will be taken to make sure it works. PS/SPS Days 2006 Lars K. Jensen AB/BI/SW 9
Circulating beam Intensity • BCT DC (Low and high intensity) – Used to acquire the intensity of circulating beams from 1 E 9 to 1 E 14 charges – Existing clients/uses: • Logging and Page 1 • AB/OP BCT application • (Safe beam flag for interlocks) – Status: • A FESA#2 version of this system has been finalised, tested and deployed. • A working version of the operational GUI was developed by AB/OP in 2005 • Awaiting requirements from other clients PS/SPS Days 2006 Lars K. Jensen AB/BI/SW 10
Tune measurement • SPS Qmeas: – Based on BOSC samplers • Used to acquire turn by turn (max: 23 secs) BPM signals for all circulating beams allowing clients to calculate the betatron tunes (and chromaticity) – Existing clients/uses: • Single kick application • AB/OP Multi. Q application – Status: • FESA#2 server deployed • New operational (single-kick) tune application being developed by AB/OP • Existing Multi. Q application to be modified – Long term: • During 2006 the BBQ system will become available and will one day replace the BOSC system PS/SPS Days 2006 Lars K. Jensen AB/BI/SW 11
Beam-size • Wire-scanners: – No changes here since 2004 • Expect no problems – Long(er) term: • LHC prototype system (with new high voltage control and acquisition electronics) will be developed and tested in BA 5 during 2006 PS/SPS Days 2006 Lars K. Jensen AB/BI/SW 12
EA STATUS • SPS North Area with new control: – Old CAMAC and NIM now VME and PLC’s • Nodal software replaced by CESAR – Java programs accessing FESA#2 over CMW • BI responsibilities transferred – Vacuum to AT/VAC. Access control to TS • Dry Run (Nov 05) on two beam lines: – Positive outcome: • CESAR and FESA brings huge benefits to the performance • System very reactive and no slow-downs were observed, even with many users • Dry Run #2: – Scheduled 15 to 17 February 2006 – Covering all North Area beams • Main difference EA w. r. t. SPS systems: – All settings are Non-ppm PS/SPS Days 2006 Lars K. Jensen AB/BI/SW 13
Pending issues for the SPS 1. 2. 3. 4. 5. Certain SPS timing events are not handled correctly (wrong context): Need bug fix during February 2006 MOPOS memory upgrade: AB/OP to decide whether we do this for the start-up or later AB/OP to decide on the list of SPS central timing events (OP working group) Needed during February 2006 AB/OP to decide (long term) on how to deal with settings per USER: Persistent in equipment or part of LSA settings management ? AB/OP to publish the list of SPS USERs (cycles) for 2006 ASAP, please. . 6. AB/OP to decide on use of SPS cycles One USER=one beam-type or ? (BCTFI, TTPOS, MOPOS) PS/SPS Days 2006 Lars K. Jensen AB/BI/SW 14
FESA Example Timing events Expert data AB/OP PPM data PS/SPS Days 2006 Lars K. Jensen AB/BI/SW 15
Conclusions • BI software developed during 2005 (some PSB/LEIR) tested/verified thoroughly: – Confident systems will work (again) • One issue preventing us from using it in operation: – Handling of SPS warning events • AB/OP to decide on the use of AB/CO gateway (SEM, TTPOS) – Standardise SEM around the SPS • SPS EA will start with completely new hardware and control system. – Followed very closely: EA dry runs PS/SPS Days 2006 Lars K. Jensen AB/BI/SW 16
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