Athos BPM Status and Plans on behalf of Boris Keil Gian Luca O rlandi Electron Beam Instrumentation Paul Scherrer Institut Athos Commissioning Workshop ID: 1007074
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1. Diagnostic Commissioning Plan & BCM for AthosAthos BPM Status and Plans, on behalf of Boris KeilGian Luca Orlandi:: Electron Beam Instrumentation :: Paul Scherrer InstitutAthos Commissioning Workshop March 4, 2020
2. Bunch Compression Monitor System Expert: F. FreiPage 2Status March 2020: in design.Rough time plan:5 March 2020 Decide on BCM or CDR implementation (F. Löhl, R. Ganter, S. Reiche, R. Ischebeck, F. Frei)Q1/Q2 2020 3D + drawings (Goran Kotrle)Q3 2020 ProcurementSpring 2021 Installation and commissioning
3. Screen Monitors System Expert: R. Ischebeck3DevicesBasicRequirementsShifts 2020WhenStatusSoftware—done✅Study of linearity / saturation: ongoing- High charge, known optics1Did one shift, but require smaller beam sizeATHOS-DSCR…Calibration of individual monitors—done✅HERO screensinstrumentation for overlap of laser and electron beamsHERO laser and commissioning plan1On progressDevicesFuture StudiesRequirementsShiftsWhenATHOS-DSCR (DLAC)Improvement of resolution: magnifying opticsTesting new scintillators- Low-emittance beam2Summer 2020Objective arrived, measurements in 2020Comparison to DLAC wire scanners- Known optics1done✅
4. DBLM/DLLM/DICT/DDRM in ATHOS and 2-bunch operationSystem Expert: G. L. OrlandiPage 4DevicesBasicCommentsShifts 2020Status March 2020DBLM Installation and commissioning on-going according to the ATHOS installation plan2 more DBLMs to be installedpresently installed DBLMs commissioned2In operation/installation on progressDLLMInstallation and commissioning on-going according to the ATHOS installation plan1 DLLM (z=430517m) to be installedpresently installed DLLMs commissioned1In operation/installation on progressDDRMDDRM installation on-going in parallel with installation of ATHOS undulators- 4 DDRMs presently installed- remaining DDRMs to be installed together with undulatorsPIn operation/installation on progressDICTSATBD02-DICT020 installed and configured Nov2019- open issues on DICT: intervention plan to be defined (meeting March,13)PIn operationDWSC3/3 ATHOS WS installed and commissioned- ARAMIS WS: Commissioning 2-bunch operations done (04.02.2020-07.02.2020) - ATHOS WS: basic commissioning done (07.02.2020)1In operationSINBC02-DSRM3102-bunch fast gated camera- Camera installed and under configuration (Controls)PCommissioning on progress
5. Athos BPM Status and PlansBoris Keil :: GFA/AEK :: Paul Scherrer InstitutAthos Commissioning Workshop, March 4, 2020
6. SwissFEL BPM OverviewPage 6BPM pickup (mechanics) types:Low-Q BPMs (3.3 GHz):For linac & transfer linesCan measure two bunches (short ringing signal)Two types (16mm & 38mm aperture)High-Q BPMs (4.9 GHz):Can only measure single bunches (long ringing signal)Mainly used for undulators (higher resolution that low-Q)Two types (Aramis: 8mm, Athos branch: 5mm aperture)BPM electronics types:"Old" type ("MBU" = Modular BPM unit), based on E-XFELPresently installed in Aramis & Athos, for all BPM types"New" type (DBPM3), based on new SLS2 BPM platformOnly for high-Q (4.9 GHz high-resolution) BPMs~3x cheaper than "Old" MBU electronicsExpect comparable performance (ADCs 3x faster)
7. Athos BPM Status & PlansPage 7So far, only MBU BPMs are used in SwissFEL, including AthosNot all BPMs needed yet -> only BPMs required for commissioning were equipped with electronics, using Aramis sparesIn April 2020, the first DBPM3 electronics should become operational in Athos (pre-series, successfully tested in lab)In summer 2020, all Athos undulator BPMs should be equipped with new DBPM3 series version electronicsLater, also Aramis undulators will use DBPM3 (probably Q1/2021), replacing old high-Q MBU electronics to be used as (low-Q) long-term spares ( >80% of low-Q/high-Q electronics are identical)Old and new electronics have same EPICS channels used by operations (position, charge, ...) -> should be transparent for operation.Only expert EPICS channels different, but we will try to make this transparent, too (save/restore, loading defaults, ...)
8. Athos BPM Status & Plans (Cont'd)Page 8All priority 1 Athos BPMs were ready 11/2019 for 1st lasingFirst DBPM3 BPM electronics April 2020Remaining DBPM3 electronics to be installed in summer 2020
9. Page 9Wir schaffen Wissen – heute für morgenThank you for your attention!