ANKA Status Report. N.Smale, A.-S. Müller, E. Huttel, M.Schuh Slides courtesy of A.-S. Müller and C.Heske.
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1 ANKA Status Report N.Smale, A.-S. Müller, E. Huttel, M.Schuh Slides courtesy of A.-S. Müller and C.Heske. KIT - University of the State of Baden-Wuerttemberg and National Laboratory of the Helmholtz Association
2 Outline ANKA today and tomorrow Science fields, construction and new beam lines Operation Operation status and statistics Hardware/software Moving from old to new hardware The future super conducting insertion device development Consolidation Plans Summary See tomorrows presentation by M.Schuh for some nice beam studies and diagnostic equipment. 2
3 ANKA today and tomorrow Normal users (2.5GeV) Other users Approx 10% of machine running time is left for: Machine studies Single bunch Low alpha Low Energy 3 3 ANKA Synchrotron Light Source at KIT
4 ANKA today and tomorrow ANKA Hall Extension Programm Complete ANKA Hall Labs KNMF FELIG Actinide beamline extention 4 4 ANKA Synchrotron Light Source at KIT
5 ANKA today and tomorrow Reality: Construction on all sides! North-west corner October 12, ANKA Synchrotron Light Source at KIT
6 ANKA today and tomorrow New Beamlines UVCD-CD12, transferred from Daresbury, now commissioned IR2, with nanoscope, now in commissioning Flute, now funded. Allow small-scale tests of THz generation, compression, radiation transport and instrumentation, T-Bone, proposal for a linac-based coherent radiation source in the THz to Mid-IR range Image/X-MIC, twin beam line in construction Visible light diagnostic port proving very usefull 6
7 ANKA today and tomorrow Visible Light Diagnostics Port Dedicated visible light beam diagnostics beam line operational since October 2010 Significantly increased flux allows measurements for small currents Optimised for Streak camera operation 7
8 Operation Beamtime Storage ring operates for about 4500 h / a no 24/7 operation possible due to limited resources (personnel) several operation modes offered availability on average 92 % 2008: Less availability due to e-gun vacuum leaks and longer start-up time (SUL-wiggler-AL-vac.-chamber) availability in UO 2009: Less beamtime due to built-up of IR2 and NANO Frontend 2011: Less availability mainly due to control system failures and resulting damage to machine vacuum & RF hours year 8
9 Operation Storage Ring Pressure & Lifetime May: Control system failure caused miss-steering of e- beam, production of whisker in beam path, no turns, venting of sector 4 With beam Without beam Sept.: Leak in Diagnostik front end (bellow) (first leak in SR vacuum system since 2002) 9
10 Operation A whisker example from U139, not from ANKA 10
11 Hardware/software Radio Frequency System Problems and solutions in GHz preamplifier failed (replacement from BESSY, new one built up) 500 MHz low-level calibrated with C.Pasotti (ELETTRA) 500 MHz klystron input failed (cabling replaced) 500 MHz preamplifier failed (RFT ) Cavity cooling failed (now digital PID regulators) RF expert hired in Feb.11 (Andreas Böhm) Actions exchange of klystron due in 2012 implementation of RF lab refurbishing of components 11
12 Hardware/software Power Supplies Onset of failures since mid 2011 Injection kicker, MOSFET dead, but box ALIVE Dipole extraction line (transistor board) Dipole booster (DC overload) Bumper with no spare Extraction septum (HV regulation module) Actions Successive replacement of power supplies foreseen Electronics expert urgently needed (position soon to be opened) 12
13 Hardware/software New (fast) BPM System for ANKA Replacement of old BPM electronic by LIBERA-Brilliance First batch (20 units) in 2011, next batch end of the year Advantage: first turn option (injection optimization) turn-by-turn option (instability studies) 1 khz acquisition (slow instability studies) Stable control interface Diagnostics expert urgently needed Thanks go to Guenther Rehm, Diamond. 13
14 Hardware/software Bunch-by-Bunch Feedback System 1D system (vertical) installed at ANKA now routinely used at 2.5 GeV to damp vertical instabilities analyzing tool: identification of unstable modes Take care the y-scales are different feedback OFF feedback ON 14
15 Hardware/software Control System ACS ANKA) became less reliable after an upgrade Transition to more commonly used systems foreseen PVSS for PLC based hardware (used already at accelerator and beamlines) Decision: EPICS or TANGO? TANGO used by beam lines cooperation contract with ESRF/SOLEIL EPICS preference for accelerators easier to implement more established in a larger community not CORBA based Control system expert needed (position to be opened soon) 15
16 The future Superconducting IDs for ANKA scids for the ANKA storage ring: SCU15 Demo, SCU2-15 and SCU20 for NANO beamline SCUW for IMAGE beamline Understanding the scid needs of light sources around the world COLDDIAG experiment is presently being installed at DIAMOND ANKA as test bed for CLIC damping rings additional benefit: wiggler for IMAGE beamline (starting 2012/13) cooperation with CERN & BINP (BMBF call) 16
17 The future Consolidation Plans for ANKA Hardware measures Fast orbit feedback & bunch by bunch feedback system to reduce low frequency oscillations improved current, stability,... New RF amplifiers replace klystrons Replacement of the present control system (SCADA) enhanced reliability and modularity when adding further components Installation of new superconducting insertion devices Strategic upgrades Considerable increase of the machine personnel sustain a critical mass, implement upgrades & develop future projects 17
18 Summary Accelerator components age problems & solutions: upgrade program started adequate operation funding & continuous investment funds required Active and competitive R&D program in cooperation with other accelerator labs (e.g. ARD) 11 PhD students and 7 Postdocs (mostly 3rd party funded) upgrade to state-of-the-art Ressources needed, in particular manpower recruiting started, needs to be further intensified 18
19 Thank you for your attention 19
20 ANKA today and tomorrow IMAGE/X-MIC Twin-Beamlines First beamline is monochromatic with resolution E/E=10-4 for high resolution transmission microscopy Second beamline is operational in three modes: white, pink & monochromatic beam, 240mmH and 36mmV 2 beamlines placed side by side ANKA Synchrotron Light Source at KIT
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