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Beam InstrumentsPSB + Transfer Lines
B. Mikulec, J-F. Comblin
BOSS mini-workshop 27/05/2014 2
Scope
Overview of beam instruments Installed in PSB injection line (BI line) Installed in PSB rings (BR) Installed in PSB extraction lines (BT, BTP, BTM, BTY)
Operational/development/obsolete Criticality Other issues
Beam instrumentation to be installed for the PSB upgrade (LIU-PSB) not mentioned here
BOSS mini-workshop 27/05/2014 3
PSB Injection
Splitting into 4 PSB rings downstream of BI.SMV10 (synoptics still to be updated for naming changes…) LT+LTB lines are under Linac2 responsibility
BOSS mini-workshop 27/05/2014 4
BI (PSB Injection) LineInstruments
Number Installed
Status Usage Comments
BPMs 12 operational
Critical for operation(beam steering)
New BPMs installed during LS1
BLMs 6 operational
Critical for operation (loss control)
ACEMs to be replaced by LHC-type ICs (LS2)
BCTs 5 operational
Critical for operation (loss control, Vistar, OP display, statistics)
New electronics (TRIC); rewinding for BI.BCT10/20 to be compatible with Linac4
BTVs 4 operational
Critical for setting up
All instruments except BLMs are declared in layout DB.
BOSS mini-workshop 27/05/2014 5
PSB Rings
Only sections 7-11 (out of 16 PSB sections) are shown here as example…
BOSS mini-workshop 27/05/2014 6
PSB Rings – PickupsInstruments Numbe
r Installed
Status Usage Comments
BRr.BPMiL3 (i=1…16)
4x16 operational
Critical for operation(orbit correction, radial loop, measurement of optic parameters)
Turn-by-turn electronics renovation to be finalized
BRr.BPTF4L5 4x1 operational
Critical for operation(transverse feedback)
RF-related
BRr.BPP1L5/5L1/8L1/11L2/14L4
4x5 operational
Critical for operation(phase pickup)
RF-related
BRr.BPMT3L1 4x1 operational
Critical for performance* (tune measurement)
BRr.BPM7L2 4x1 For MDs Not critical for operation
Half-turn pickup
BRr.UQD3L1 1 For MDs Quadrupolar pickup; not critical for operation
Name should be changed…; no remote readout
All instruments are declared in layout DB.
r=1…4 (PSB ring number)
* Critical for performance: PSB could operate without the instrument for a limited time.
BOSS mini-workshop 27/05/2014 7
PSB Rings – Intensity/Current
Instruments Number Installed
Status Usage Comments
BRr.BCTDC9L1 4x1 operational Critical for operationVistar, Samplers, OP display, Statistics, LHC beam quality check, Beamscope
BRr.BCTF8L1 4x1 operational Critical for performance(fast beam intensity)
OASIS
BRr.BCTI8L1 4x1 Installed, but not yet operational
Critical for operation from LS2 (intermediate beam intensity)
Will be used with Linac4 (injection watchdog); new electronics
BRr.BCW8L1 4x1 operational Critical for operation(longitudinal profile measurement for bunch shape measurement, tomoscope)
RF-related.Vacuum leak during LS1.
All instruments are declared in layout DB.
r=1…4 (PSB ring number)
BOSS mini-workshop 27/05/2014 8
PSB Rings – Other Instruments
Instruments
Number Installed
Status Usage Comments
BRr.BWS.2L1(wire scanners)
4x2 operational
Critical for operation(Profile + Emittance measurement)(only 1 transv. emittance meas. instrument per ring/plane!)
Calibrated spares have to be available; MDs to be repeated to validate performance.LHC beam quality check.
BR.BTV15L1 1 operational
Critical for setting up
BLMs 16x216x2
operational
Critical for operation (beam loss)
ACEMs + LHC-type ICs (new!) in parallel; loss studies to be done this run, but electronics not yet available! ACEMs to be replaced during LS2.
BR3.MSF1L1 (SEM fil)
1 obsolete Will be removed during LS2.
All instruments except BLMs are declared in layout DB.
r=1…4 (PSB ring number)
BOSS mini-workshop 27/05/2014 9
BT Line
Complex recombination 4 2 1 ring…
BOSS mini-workshop 27/05/2014 10
BT (PSB Transfer) LineInstruments
Number Installed
Status Usage Comments
BPMs 10 operational
Critical for operation(beam steering)
New BPMs; difficult geometry (tilts, offsets)
BLMs 7 operational
Critical for operation (loss control, interlocks)
ACEMs to be replaced by LHC-type ICs (LS2)
BCTs 1 operational
Critical for operation(loss control, Vistar, OP display, statistics)
New BCT (+TRIC)
BTVs 5 operational
Critical for setting up
All instruments except BLMs are declared in layout DB.
BOSS mini-workshop 27/05/2014 11
BTP Line
Wall between PSB and PS tunnels
BOSS mini-workshop 27/05/2014 12
BTP (PSB Transfer to PS) LineInstruments
Number Installed
Status Usage Comments
BPMs 4 operational
Critical for operation(beam steering)
New BPMs
BLMs 2 operational
Critical for operation (loss control, interlocks)
ACEMs to be replaced by LHC-type ICs (LS2)
BCTs 1 operational
Critical for operation(loss control, Vistar, OP display, statistics)
New BCT (+TRIC)
BTVs 1 operational
Critical for setting upAll instruments are declared in layout DB.
BOSS mini-workshop 27/05/2014 13
BTM Line
PSB measurement line (emittance measurement) and PSB dump.
BOSS mini-workshop 27/05/2014 14
BTM (PSB to Measurement) LineInstruments
Number Installed
Status Usage Comments
BPMs 2 operational
Critical for operation(beam steering)
New BPMs
BLMs 3 operational
Critical for operation (loss control, interlocks)
ACEMs to be replaced by LHC-type ICs (LS2)
BCTs 1 operational
Critical for operation(loss control, Vistar, OP display, statistics)
Old BCT (+TRIC)
SEM grids 3 operational
Critical for operation(profile + emittance measurement)
Renovated electronics. Cross-check with BWS.
BTVs 3 operational
Critical for setting up
All instruments are declared in layout DB.
BOSS mini-workshop 27/05/2014 15
BTY Line
Splitting into ISOLDE GPS and ISOLDE HRS targets at the end.
BOSS mini-workshop 27/05/2014 16
BTY (PSB to ISOLDE) LineInstruments
Number Installed
Status Usage Comments
BPMs 4 operational
Critical for operation (beam steering)
New BPMs
BLMs 9 operational
Critical for operation (loss control, interlocks, beam steering at high intensity)
ACEMs to be replaced by LHC-type ICs (LS2)
BCTs 4 operational
Critical for operation (loss control, GPS/HRS watchdogs, OP display, statistics)
New BCTs (+TRIC)
SEM grids 3 operational
Critical for Isolde setting up (profile + beam alignment on target)
Several setups per month.Renovated electronics.
BTVs 5 operational
Critical for setting up
The BTY line is not yet declared in the layout DB.
BOSS mini-workshop 27/05/2014 17
Instrument SummaryInstruments
Total # installed
Setup Performance
Operation
MD Obsolete
BPMs 129 4 120 5
BLMs 91 91
BCTs 24 4 20
BTVs 19 19
BWS 8 8
SEM grids 6 3 3
Others 1 1
278 22 8 242 5 1
BOSS mini-workshop 27/05/2014 18
Conclusions278 BI equipment currently installed in PSB complex
(187 without BLMs)
Practically all installed instruments in the PSB are critical for operation. Many instrument modifications (equipment +
electronics + software) during LS1. New instruments for LS2.
Instruments in layout DB except for BTY line and certain BLMs; will follow
Optics have been updated Positions are currently being corrected in layout DB
GEODE will be updated with new names
BOSS mini-workshop 27/05/2014 19
Beam offBRr.BCTDC9L1: beam intensity in the rings; also used
for ISOLDE+EAST beams intensity interlock
BRr.BCW8L1: essential for bunch synchronisation
BRr.BPTF4L5: no high intensity beams in case of failure
BPMs in extraction lines: failure of 1 can be worked around short-term, but need to compensate with others (recombination and bunch spacing)
BCTs in extraction lines: failure of 1 can be worked around short-term, but need to compensate with others
BLMs in extraction lines: could probably live a few days with one broken (would need to be removed from interlock!)