101115v. ziemann: cai at sfair meeting in uppsala accelerator physics activities and the center for...

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


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


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


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


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


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)


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


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


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


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.


OTR on camera while 200 fs laserpulse passes through electron bunch


...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


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...


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)


ESS RF distribution system

About 200 s.c. acceleration cavities (352 + 704 Mhz) Modulators Klystrons LLRF system Efficiency Test stand


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


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


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


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


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.


Some CAI projects

Pellet tracking system for PANDA

Piezo-driven microstage inside electron-microscope


Some CAI projects, cont'd

Sample transfer unit for MAXlab

Scattering chamber for LCLS

Use 3D printer for prototyping andeven manufacture of devices


Some CAI projects, cont'd OTR station and filterwheel

for TBTS Probe station to investigate gas-

eous samples under microscope


Some CAI projects, cont'd

Power and water connection system for MAX4 magnets

Aerosol (Virus) injector for FLASH and LCLS


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.

101115v. ziemann: cai at sfair meeting in uppsala accelerator physics activities and the center for...

Documents

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sfair meeting

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uppsala s

small beam

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beam lines

uppsala fp7eucard