Wir schaffen Wissen heute fr morgen Paul Scherrer

Wir schaffen Wissen – heute für morgen Paul Scherrer Institut Andreas Lüdeke, Operations Manager of the Swiss Light Source Synchrotron Light Sources at the Paul Scherrer Institute at the 20 th ESLS workshop at BESSY

Paul Scherrer Institute (PSI) PSI facts & figures: • Staff: 1500 • Budget: 350 MCHF/a • Ext. users: 2300/a • Sci. publication: 1000/a • Patient visits: 6000/a Large Research Facilities HIPA SINQ Proscan Swiss Light Source (SLS): • Started in Aug. 2001 • Serves 19 beamlines • 65% of ext. users at PSI 19 -Nov-2012 SLS Andreas Lüdeke at the ESLS XX at BESSY Page 2

Swiss Light Source (SLS) • Beamlines - 10 undulator beamlines - 9 dipole beamlines - No further beamline planned! • Yearly schedule • ~5000 h user operation • ~1800 h development • ~1900 h shut downs 19 -Nov-2012 Andreas Lüdeke at the ESLS XX at BESSY Page 3

SLS Operation Statistics 100 94, 2 96, 3 98, 3 95, 4 97, 4 95, 8 98, 7 95, 9 98, 7 98, 6 94 90 82 80 74 70 53 46 45 40 51 52 50 68 66 61 60 60 50 74 52 55 52 50 44 30 30 20 10 0 2002 2003 2004 2005 2006 User operation [100 h] 19 -Nov-2012 2007 2008 2009 Availability [%] Andreas Lüdeke at the ESLS XX at BESSY 2010 2011 MTBF [h] 2012 until now Page 4

SLS Operation Statistics: Number of Incidents 120 Other Thunderstorms 100 IDs Number of incidents 80 Controls Diagnostics Operator fault 60 Unknown Water cooling 40 Vacuum Mains 20 Mag. PS 0 Safety 2006 19 -Nov-2012 2007 2008 2009 2010 Year of operation Andreas Lüdeke at the ESLS XX at BESSY 2011 RF Page 5

RF cavity water leaks Photo provided by Lukas Stingelin 19 -Nov-2012 Andreas Lüdeke at the ESLS XX at BESSY Page 6

RF cavity water leaks Photo provided by Lukas Stingelin 19 -Nov-2012 Andreas Lüdeke at the ESLS XX at BESSY Page 7

RF cavity replacement: ELETTRA type Photo provided by Lukas Stingelin 19 -Nov-2012 Andreas Lüdeke at the ESLS XX at BESSY Page 8

Test stand 500 MHz RF & solid state amplifier Solid state amplifier (60 k. W) Booster Cavity in Tunnel Waveguide switch New cavity in test-bunker Klystron HVPS for Klystron Lukas Stingelin et al 19 -Nov-2012 Andreas Lüdeke at the ESLS XX at BESSY Page 9

Beam size measurement & control • TIARA: Test Infrastructure and Accelerator Research Area • WP 6 «SVET» : SLS Vertical Emittance Tuning • Use the SLS as «test-bed» for low-coupling damping rings • Study measurement and control of coupling • Study Intra-Beam-Scattering effects • NIM paper 16. Oct. 2012, Masamitsu Aiba et al, Ultra low vertical emittance at the SLS through systematic and random optimization • Talk by Angela Saa Hernandez: • Design and expected performance of the new SLS beam size monitor • Talk tomorrow by Roy Aleksan: • Presentation of TIARA 19 -Nov-2012 Andreas Lüdeke at the ESLS XX at BESSY Page 10

Short Pulses at the SLS: low-α • Low-α optics established in 2009 • α 1 = 3. 6 x 10 -5 • RMS bunch length 8 ps at 50 m. A total beam current (For comparison: 40 ps at 400 m. A is normal operation) • Interest by 3 out of 18 beamlines • Two blocks of 80 hours beam time used in 2010 • Insufficient man power at beamlines to prepare and run these experiments • Not enough results to justify operating for 3 out of 18 • Discontinued 19 -Nov-2012 Andreas Lüdeke at the ESLS XX at BESSY Page 11

Short Pulses at the SLS: FEMTO Picture provided by Gerhard Ingold 19 -Nov-2012 Andreas Lüdeke at the ESLS XX at BESSY Page 12

FEMTO laser-pump / X-ray-probe experiments Pictures provided by Gerhard Ingold 19 -Nov-2012 Andreas Lüdeke at the ESLS XX at BESSY Page 13

FEMTO Achievements • Installation in April 2006 • Measured sliced flux: 4 ∙ 105 ph/s/0. 1% bw at 5 ke. V repetition 2 k. Hz • Background suppression: 1000: 1 (core beam) • Pump-probe time resolution: 200 fs • ~5 weeks of operation / year • Publications 2006 -2012: 1 PRL / 0. 75 year • Beamline termination scheduled: 1 st of July 2014 19 -Nov-2012 Andreas Lüdeke at the ESLS XX at BESSY Page 14

Short Pulses at PSI: Swiss. FEL 2 nd construction phase 2018 -19 ATHOS 0. 7 -7 nm 1 st construction phase 2013 -16 BC 1 Injector Linac 1 0. 35 Ge. V 2. 0 Ge. V 19 -Nov-2012 ≤ 3. 4 Ge. V BC 2 Linac 2 3. 0 Ge. V user stations Linac 3 ≤ 5. 8 Ge. V ARAMIS 0. 1 -0. 7 nm Andreas Lüdeke at the ESLS XX at BESSY Page 15

Swiss. FEL building site 19 -Nov-2012 Andreas Lüdeke at the ESLS XX at BESSY Page 16

Swiss. FEL Development: Injector Test Facility (SITF) quadrupole 250 Me. V S-band Linac X-band system Deflecting cavity dipole BPM+screen Bunch compressor screen • Facility to test: • • • Electron Source: laser gun development RF: low-level regulations, RF modulator development, X-band Bunch compression studies Diagnostics development: EO, CSR, Beam arrival Controls development: beam synchronous data acquisition • Additional plans: • Test U 15 prototype with beam 19 -Nov-2012 Picture provided by Thomas Schietinger Andreas Lüdeke at the ESLS XX at BESSY Page 17

Swiss. FEL development: C-band RF amplifier • 50 MW/100 Hz C-band Klystron from Toshiba commissioned • Skandinova K 2 modulator in use, but 2 nd prototype ordered (delivery Mar. 2014) • Prototype collaboration Pulse-genesis modulator commissioning started Photo provided by Lukas Stingelin 19 -Nov-2012 Andreas Lüdeke at the ESLS XX at BESSY Page 18

Swiss. FEL development: C-band RF structures • 3 short structures tested (up to 57 MV/m) • Acoustic measurement for localization of break downs • Collaboration with Swiss industry for structure fabrication initiated Photo provided by Lukas Stingelin 19 -Nov-2012 Andreas Lüdeke at the ESLS XX at BESSY Page 19

Swiss. FEL Development: Undulator U 15 Photo provided by Thomas Schmid 19 -Nov-2012 Andreas Lüdeke at the ESLS XX at BESSY Page 20

Summary • SLS is old, but still healthy • PSI in a phase of “lattice modification” • Shift of focus to Swiss. FEL projekt