Beam Instruments PSB + Transfer Lines B. Mikulec, J-F. Comblin

Scope BOSS mini-workshop 27/05/  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

PSB Injection BOSS mini-workshop 27/05/  Splitting into 4 PSB rings downstream of BI.SMV10  (synoptics still to be updated for naming changes…)  LT+LTB lines are under Linac2 responsibility

BI (PSB Injection) Line BOSS mini-workshop 27/05/ InstrumentsNumber Installed StatusUsageComments BPMs12operationalCritical for operation (beam steering) New BPMs installed during LS1 BLMs6operationalCritical for operation (loss control) ACEMs  to be replaced by LHC- type ICs (LS2) BCTs5operationalCritical for operation (loss control, Vistar, OP display, statistics) New electronics (TRIC); rewinding for BI.BCT10/20 to be compatible with Linac4 BTVs4operationalCritical for setting up All instruments except BLMs are declared in layout DB.

PSB Rings BOSS mini-workshop 27/05/  Only sections 7-11 (out of 16 PSB sections) are shown here as example…

PSB Rings – Pickups BOSS mini-workshop 27/05/ InstrumentsNumber Installed StatusUsageComments BRr.BPMiL3 (i=1…16) 4x16operationalCritical for operation (orbit correction, radial loop, measurement of optic parameters) Turn-by-turn electronics renovation to be finalized BRr.BPTF4L54x1operationalCritical for operation (transverse feedback) RF-related BRr.BPP1L5/5L1 /8L1/11L2/14L4 4x5operationalCritical for operation (phase pickup) RF-related BRr.BPMT3L14x1operationalCritical for performance* (tune measurement) BRr.BPM7L24x1For MDsNot critical for operationHalf-turn pickup BRr.UQD3L11For MDsQuadrupolar 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.

PSB Rings – Intensity/Current BOSS mini-workshop 27/05/ InstrumentsNumber Installed StatusUsageComments BRr.BCTDC9L14x1operationalCritical for operation Vistar, Samplers, OP display, Statistics, LHC beam quality check, Beamscope BRr.BCTF8L14x1operationalCritical for performance (fast beam intensity) OASIS BRr.BCTI8L14x1Installed, but not yet operational Critical for operation from LS2 (intermediate beam intensity) Will be used with Linac4 (injection watchdog); new electronics BRr.BCW8L14x1operationalCritical 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)

PSB Rings – Other Instruments BOSS mini-workshop 27/05/ InstrumentsNumber Installed StatusUsageComments BRr.BWS.2L1 (wire scanners) 4x2operationalCritical 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.BTV15L11operationalCritical for setting up BLMs16x2 operationalCritical 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) 1obsoleteWill be removed during LS2. All instruments except BLMs are declared in layout DB. r=1…4 (PSB ring number)

BT Line BOSS mini-workshop 27/05/  Complex recombination 4  2  1 ring…

BT (PSB Transfer) Line BOSS mini-workshop 27/05/ InstrumentsNumber Installed StatusUsageComments BPMs10operationalCritical for operation (beam steering) New BPMs; difficult geometry (tilts, offsets) BLMs7operationalCritical for operation (loss control, interlocks) ACEMs  to be replaced by LHC- type ICs (LS2) BCTs1operationalCritical for operation (loss control, Vistar, OP display, statistics) New BCT (+TRIC) BTVs5operationalCritical for setting up All instruments except BLMs are declared in layout DB.

BTP Line BOSS mini-workshop 27/05/  Wall between PSB and PS tunnels

BTP (PSB Transfer to PS) Line BOSS mini-workshop 27/05/ InstrumentsNumber Installed StatusUsageComments BPMs4operationalCritical for operation (beam steering) New BPMs BLMs2operationalCritical for operation (loss control, interlocks) ACEMs  to be replaced by LHC- type ICs (LS2) BCTs1operationalCritical for operation (loss control, Vistar, OP display, statistics) New BCT (+TRIC) BTVs1operationalCritical for setting up All instruments are declared in layout DB.

BTM Line BOSS mini-workshop 27/05/  PSB measurement line (emittance measurement) and PSB dump.

BTM (PSB to Measurement) Line BOSS mini-workshop 27/05/ InstrumentsNumber Installed StatusUsageComments BPMs2operationalCritical for operation (beam steering) New BPMs BLMs3operationalCritical for operation (loss control, interlocks) ACEMs  to be replaced by LHC- type ICs (LS2) BCTs1operationalCritical for operation (loss control, Vistar, OP display, statistics) Old BCT (+TRIC) SEM grids3operationalCritical for operation (profile + emittance measurement) Renovated electronics. Cross- check with BWS. BTVs3operationalCritical for setting up All instruments are declared in layout DB.

BTY Line BOSS mini-workshop 27/05/  Splitting into ISOLDE GPS and ISOLDE HRS targets at the end.

BTY (PSB to ISOLDE) Line BOSS mini-workshop 27/05/ InstrumentsNumber Installed StatusUsageComments BPMs4operationalCritical for operation (beam steering) New BPMs BLMs9operationalCritical for operation (loss control, interlocks, beam steering at high intensity) ACEMs  to be replaced by LHC- type ICs (LS2) BCTs4operationalCritical for operation (loss control, GPS/HRS watchdogs, OP display, statistics) New BCTs (+TRIC) SEM grids3operationalCritical for Isolde setting up (profile + beam alignment on target) Several setups per month. Renovated electronics. BTVs5operationalCritical for setting up The BTY line is not yet declared in the layout DB.

Instrument Summary BOSS mini-workshop 27/05/ InstrumentsTotal # installed SetupPerformanceOperationMDObsolete BPMs BLMs91 BCTs24420 BTVs19 BWS88 SEM grids633 Others

Conclusions 278 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/

Beam off BRr.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!) BOSS mini-workshop 27/05/