highlights from

Highlights from

CLIC Meetings 15/08/2008Ofelia Capatina TS/MME

O. Capatina, 15/08/08

NANOBEAM

2Real landscape at Nanobeam2002: The chateau of Gruyere.

Nanobeam2008 at BINP.

Real landscape at Nanobeam2005: The Byodoin of Uji.

• Advanced Beam Dynamics Workshop• Nanometre-Size Colliding Beams

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NANOBEAM 08

• Why me?

– Involved in CLIC Stabilization studies

– Mechanical Engineer point of view• Nanometer for a mechanical engineer = we have to reset our

minds to try to imagine• Micron for a beam physicist (Daniel) = coarse movement


NANOBEAM 08

• Novosibirsk – capital of Siberia– The third largest city in Russia after Moscow and Saint-

Petersburg• 1,397,000 people (in 2006)• 500 km²

– Founded in 1893– Geographical Reference System: 55°01′N 82°56′E – Time zone: UTC+6 (in winter), UTC+7 (in summer)


One of Moscow Internal Flights Airport


Flying to Novosibirsk


Lenin place – centre of Novosibirsk


Participants

~ 30 participants / ~ 100 the previous years


Program

• All information at http://ssrc.inp.nsk.su/NB08/• Program

http://ssrc.inp.nsk.su/NB08/

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Program

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Program

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Program

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Introduction

• Review of Nanobeam 2005, by Junji Urakawa (KEK)

2002-LC 2005-LC

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Introduction

• ILC Beam Delivery System and ATF2, by Andrei Seryi (SLAC)

ATF2

Scaled down model of ILC final focus

at KEK

The ATF international collaboration include more than 200 researchers and the ATF MOU is signed by 20 institutions from all over the world

ATF2 goals(A) Small beam size

Obtain y ~ 35nmMaintain for long time

(B) Stabilization of beam center Down to < 2nm by nano-BPM Bunch-to-bunch feedback of ILC-

like train

ATF2 – model of ILC BDS

Scaled down model of ILC final focus (local chromatic correction)

ATF2 construction – rapid progress in 2007

Assembly hall before constructionAssembly hall before construction Assembly hall emptied for constructionAssembly hall emptied for construction

Construction of reinforced floorConstruction of reinforced floorConstruction of shieldingConstruction of shielding

Photos: Nobu Toge

August – December

ATF2 construction – January 2008

The last regular quadrupole is going to the destinationThe last regular quadrupole is going to the destination~20 sets of supports, movers & quads were installed in January. R.Sugahara et al

Advanced beam instrumentation at ATF2

• BSM to confirm 35nm beam size• nano-BPM at IP to see the nm stability• Laser-wire to tune the beam• Cavity BPMs to measure the orbit• Movers, active stabilization, alignment

system• Intratrain feedback, Kickers to produce ILC-

like train IP Beam-size monitor (BSM)(Tokyo U./KEK, SLAC, UK)

Laser-wire beam-size Monitor (UK group)

Cavity BPMs, for use with Q magnets with 100nm resolution (PAL, SLAC, KEK)

Cavity BPMs with 2nm resolution, for use at the IP (KEK)

Laser wire at ATF

ATF2 schedule

Conclusion

• Design of Beam Delivery system for ILC was produced by international design team

• Critical subsystems (Final Doublet, Crab cavities) are being prototyped

• Complex systems (Interaction Region, Beam dumps) are being designed in details

• BDS System test is being prepared at the ATF2 test facility

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Lasers and Linear Colliders

• Laser-Plasma Accelerators: Production Of High-Current Ultra-Short e-Beams, Beam Control and Radiation Generation, by Igor Kostyukov (IAP/RAS, Nizhny Novgorod)

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• Laser-Plasma Accelerators: Production Of High-Current Ultra-Short e-Beams, Beam Control and Radiation Generation, by Igor Kostyukov (IAP/RAS, Nizhny Novgorod)

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ATF2 Project Meetings

• Many presentations about ATF2 status– Installation status of magnet tables, magnets, DC cabling, water

pipes, shields, beam dump, power supplies, QBPM, BSM (Shintake Monitor), Magnet movers

– Software – Options to provide superconducting FF magnets at ATF2– Commissioning strategy– How can remote collaborators access to ATF online data?

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Nanometer beams and stability

• BINP Capacitive And Ultrasonic Hydrostatic Level Sensors For Slow Ground Motion Study And Precise Accelerator Alignment, Andrey Chupyra (BINP)

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• BINP Capacitive And Ultrasonic Hydrostatic Level Sensors For Slow Ground Motion Study And Precise Accelerator Alignment, Andrey Chupyra (BINP)

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• Techniques to approach the requirements of CLIC stability, by O. Capatina

• Study Of Vibrations And Stabilization At The Sub-Nanometre Scale For CLIC Final Doublets, by B. Bolzon (LAPP)

• Monalisa status, by David Urner (University of Oxford)

– See presentation of Claude Hauviller during CLIC meeting on 30th of May 2008

• Study of supports for ATF-2 final doublets, by B. Blozon (LAPP)

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Advanced e+ source // Crystal channeling

• Laser Compton based positron source, by Tsunehiko Omori (KEK)

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• Present status of KEKB positron source, Takuya Kamitani (KEK)

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• Crystal channeling for electron/position beams, Tohru Takahashi Takahashi (Hiroshima University)

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BINP facilities visit

• Budker Institute of Nuclear Physics– Founded in 1958 as part of the Siberian Branch of the USSR

Academy of Sciencies– Founder Andrei Mikhailovich Budker (1918 - 1977)– BINP activities:

• Electron-electron and electron-positron colliders• Physics of high-energy particles and atomic nucleus• Physics of accelerators• Plasma physics and controlled thermonuclear fusion• Generation and application of synchrotron radiation beams • High-power free electron lasers• Industrial electron accelerators• Theoretical physics

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• 1964 – the first electron-electron collisions registered at BINP at the first electron-electron collider VEP-1

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• Visit at VEPP-2000:– Luminosity up to 1032 cm−2 s−1 on energy up to 2×1 GeV– To study hadron production in electron-positron collisions

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• VEPP-2000:

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• VEPP-2000 control room

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• “Golden Hadron” awarded to BINP by CERN for particularly high-quality production of 360 dipole magnets and 185 quadrupole magnets for the LHC's proton beam transfer lines

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Banquet

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Banquet

Russian dictum “Drinking without toasts is alcoholism” … so we had a lot of toasts

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Conclusions

• Very interesting visit• Thank you for giving me this opportunity

highlights from

Documents

beam dumps

beam control

ofelia capatina tsmmeo

nm beam sizenanobpm

beam physicist daniel

bunch feedback of ilc

nm stabilitylaserwire

nm resolution pal