101115v. ziemann: cai at sfair meeting in uppsala accelerator physics activities and the center for...
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101115 V. Ziemann: CAI at SFAIR meeting in Uppsala
Accelerator Physics Activities and the
Center for Accelerator and Instrumentation in Uppsala
Volker ZiemannDepartment of Physics and Astronomy
Uppsala University
101115 V. Ziemann: CAI at SFAIR meeting in Uppsala
Overview
Acclerator Physics activities at IFA-HEP CLIC: Two-Beam Test Stand
FP6-EuroTeV, FP7-EuCARD and Norduclic XFEL: Optical Replica and Laser Heater ESS: RF distribution system and test stand TIARA-PP
Center for Accelerator and Instrumentation Scope and Agenda Projects
101115 V. Ziemann: CAI at SFAIR meeting in Uppsala
CLIC related Activities
Long UU history in beam instrumentation in CLIC 2004 call by CERN DG for participation in CTF3 Successful application to VR+KAW for the design
and construction of the TBTS Spawned FP6-EuroTeV participation and later
FP7-EuCARD Coordinated approach within Scandinavian
groups involved in CLIC/CTF3 led to formation of the NorduCLIC consortium
101115 V. Ziemann: CAI at SFAIR meeting in Uppsala
Two-beam Test-stand in CTF3
CTF3 drive-beam
Experimental area
Spectrometers and beam dumps
CALIFES probe-beam
Construction supported by theSwedish Research Council and theKnut and Alice Wallenberg Foundation
TBTS crew:Tord EkelöfRoger RuberVolker ZiemannAndrea PalaiaTomoko MuranakaTobias BlomMarek Jacewicz
101115 V. Ziemann: CAI at SFAIR meeting in Uppsala
TBTS, the real thing
Beams in both beam lines, PETS and ACS installed andtwo-beam acceleration observed in summer 2010
Pics from R. Ruber and A. Palaia
101115 V. Ziemann: CAI at SFAIR meeting in Uppsala
Beam-instrumentation and Post-collision beam line
Long involvement in beam instrumentation Bunch combination monitor (A. Ferrari, A. Rydberg) Confocal resonator monitor (FP6, AF + AR + VZ)
FP6-EuroTeV project on the conceptual design of the multi-TeV post-collision line (A. Ferrari, VZ) Safely dispose 14 MW beam power when in collision
(large energy spread) or not (small beam on dump)
101115 V. Ziemann: CAI at SFAIR meeting in Uppsala
FP7-EuCARD: TBTS Upgrade and breakdown experiments inside SEM
Length of CLIC Achievable acc. gradient
Surface fields > 200 MV/m
Discharges
Look at it where it happens in-situ in a scanning electron microscope
Complement molecular dynamics simulation done in Helsinki (also FP7-EuCARD)
GBC=TE
101115 V. Ziemann: CAI at SFAIR meeting in Uppsala
NorduCLIC Joint venture of Scandinavian groups working
on CLIC/CTF3 Helsinki (F), Oslo (N), Uppsala (S), Aarhus (D)
Original research program: Design (N), build (F) and test (S) acceleration structures for the new 12 GHz stand-alone test-stand at CERN
Successful applications in F and S Recent expansion through accession of D
Probably machine-detector interface Steinar Stapnes will be new head of CLIC
101115 V. Ziemann: CAI at SFAIR meeting in Uppsala
XFEL related activities Following the withdrawal of funding for CELSIUS and
CRYRING the university heads of UU+SU+KTH sponsored the creation of a joint center for research in Free-electron laser related issues (2005, 3x3x1.5 MSeK)
Three projects following workshop in Kista (Nov 2004) Precision fiducialization for special magnets Surface physics in small beam pipes (short bunches
and resistive wakes) Optical Replica Synthesizer to measure ultra-short
electron bunches in FLASH Spin-off: XFEL laser heater as Swedish in-kind contri-
bution to the constrution of the EuXFEL
101115 V. Ziemann: CAI at SFAIR meeting in Uppsala
Optical Replica Synthesizer
Problem: measure ultra-short bunches in the 10s of fs range: EOS, TEO, LOLA, ORS
too fast for electronics (10 Gs/s, 100 ps)
but laser folks know (autocorrelation, FROG)
Solution: make an optical copy of the electron bunch and analyze that with laser methods.
101115 V. Ziemann: CAI at SFAIR meeting in Uppsala
OTR on camera while 200 fs laserpulse passes through electron bunch
101115 V. Ziemann: CAI at SFAIR meeting in Uppsala
...finally: Single-shot FROGs
ORS is rebuilt into the SFLASH beam line
G. Angelova received fo-ass to work on electron-laser interaction
New postdoc from UniDo
Show goes on
Need to make it into standard operation device
101115 V. Ziemann: CAI at SFAIR meeting in Uppsala
XFEL Laser Heater Electrons are born very cold (3 keV)
susceptible to plasma oscillation instabilities Add Landau damping (decoherence) in a well
controlled way Laser Heater
Swedish in-kind contribution
Just hiring...
101115 V. Ziemann: CAI at SFAIR meeting in Uppsala
ESS and Uppsala
European (5 MW Neutron) Spallation Source will be built in Lund
Finance volume: ~15 GSeK, 1 GSeK/y
3-4 y design + 5 y construction (+ 5 y)
First beams ~2019, Last beams ~2066
How can we attract a part of the development work to Uppsala?
ESS (ML) suggested that we take responsibility for the radio-frequency distribution system of the ESS
Local: T. Ekelöf, R. Ruber, V. Ziemann
LOI from UU rektor Anders Hallberg to ESS (July 2009)
101115 V. Ziemann: CAI at SFAIR meeting in Uppsala
ESS RF distribution system
About 200 s.c. acceleration cavities (352 + 704 Mhz) Modulators Klystrons LLRF system Efficiency Test stand
101115 V. Ziemann: CAI at SFAIR meeting in Uppsala
FREIA: Uppsala RF-teststand
4 years development phase
Volume 194 MSeK (1.5%)
~20 positions + hardware
2011-2012: buildup, design update and TDR writing
2013-2014: R&D, Two cavities/klystron concept, testing components, system integration
2015-beyond: components testing energy efficiency
Towards an UU FEL
LHe refrigerator (140 l/h) [KAW]
2 cavities in horizontal cryostat
6 MW pulse modulator
3 MW klystron
101115 V. Ziemann: CAI at SFAIR meeting in Uppsala
101115 V. Ziemann: CAI at SFAIR meeting in Uppsala
TIARA-PP
Test Infrastructure and Accelerator Research Area Objective: Integration of national and international
accelerator R&D infrastructures into a single distributed European R&D facility.
Member institutes: CEA, CERN, DESY, GSI,..., UU Roy Aleksan, CEA; Uppsala representative: T. Ekelöf
Uppsala University representing Scandinavian partners Preparatory phase:
Inventory of infrastructures, common programs, education 4 RTD: small beams, muon cooling, SPARC, cryostat
101115 V. Ziemann: CAI at SFAIR meeting in Uppsala
CAI, the Center for Accelerator and Instrumentation Development
Cutting edge science at large multi-national facilities
CERN for high-energy physics ESRF, ALS, MAX for synchrotron radiation sciences Observatories in Spain and Chile for astronomy
This trend continues in the future
XFEL, FAIR, ESO/ESA, ESS, Max4 In-kind contributions for construction and operation for the
facility itself and its instrumentation
Accelerator or reactor Instrumentation: detector or beam-line (photons or neutrons)
Need a strong home base as platform to launch strong participation in international collaborations
101115 V. Ziemann: CAI at SFAIR meeting in Uppsala
CAI: Mission Platform to participate in multi-
national research infrastructure facilities
Increase collaboration among participating groups
Advanced scattering for materials science (#)
neutrons (ILL, ESS)
photons (ESRF, MaxLab)
RF-breakdown studies for CLIC
Accelerator physics
Material science
Pellet target for PANDA at HESR@FAIR
101115 V. Ziemann: CAI at SFAIR meeting in Uppsala
CAI, the startup phase In 2007 CAI was established (B. Hjörvarsson,
chair and T. Ekelöf co-chair, VZ, director) In the KOF07 evaluation the need for the
functionality of CAI was clearly identified... ...and resulted in the funding of positions for two
mechanical engineers (CAD design) from the rektor's strategic funds
Close relation to the Ångström workshop. We work on a wide portfolio of projects, both in-
house and externally.
101115 V. Ziemann: CAI at SFAIR meeting in Uppsala
Some CAI projects
Pellet tracking system for PANDA
Piezo-driven microstage inside electron-microscope
101115 V. Ziemann: CAI at SFAIR meeting in Uppsala
Some CAI projects, cont'd
Sample transfer unit for MAXlab
Scattering chamber for LCLS
Use 3D printer for prototyping andeven manufacture of devices
101115 V. Ziemann: CAI at SFAIR meeting in Uppsala
Some CAI projects, cont'd OTR station and filterwheel
for TBTS Probe station to investigate gas-
eous samples under microscope
101115 V. Ziemann: CAI at SFAIR meeting in Uppsala
Some CAI projects, cont'd
Power and water connection system for MAX4 magnets
Aerosol (Virus) injector for FLASH and LCLS
101115 V. Ziemann: CAI at SFAIR meeting in Uppsala
Conclusion
Within the IFA department of the TekNat faculty we are
participating in exciting international accelerator collaborations CLIC/CTF3 FLASH and EuXFEL ESS (in the future)
and, at the same time, create a home-base to contribute design capacity through CAI.