LUCX FACILITY INTRODUCTION: PRESENT STATUS AND FUTURE

PLANS

A. AryshevOn behalf of QB group and

THz collaboration

Mini-workshop for advanced THz and Compton X-ray generation

18 – 19 March 2013

Mini-workshop for advanced THz and Compton X-ray generation

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Outline• THz project overview

– LUCX activity – LUCX Projects Overview– THz program

• LUCX Laser system • LUCX 2012 upgrade

– LUCX operation modes– e-beam optics– THz program vacuum system, manipulator

• Measurement setup and DAQ• Schedule & Conclusion• Resources

19 March 2013

Mini-workshop for advanced THz and Compton X-ray generation

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LUCX: international collaboration• Initially the machine was built as a RF Gun test bench in 2005• In 2006 (RF Gun + Accelerating structure) it was extended to produce

~40MeV e-beam and Compton experiment started• 2009 a new 1.6 cell RF-Gun was made, installed and commissioned.• 2011 RF-Gun replacement -> 3.6 cell • From 2009 CDR experiment started• From 2012 THz program was started

• KEK, Waseda University, Osaka University, Tomsk Polytechnic University, Royal Holloway University of London.

• Kharkov Institute of Physics and Technology, Oxford, Moscow Engineering Physics Institute.

19 March 2013

Mini-workshop for advanced THz and Compton X-ray generation

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Accelerator operation

19 March 2013

LUCX Activities Overview

Projects Machine studies

1. Beam dynamics2. Multibunch tuning3. Stabilization

Training Maintenance

1. Alignment2. Calibrations3. Debugging

General improvements and

upgrades

Ti – Sa lasersystem integration

ZEMAX and CST simulations

Documentation& publicity

Mini-workshop for advanced THz and Compton X-ray generation

519 March 2013

LUCX Projects Overview

Pulsed-laser Super-cavity R&D for compact X-ray

source

4-mirror planar optical super-

cavity

X-ray imaging

THz

CDR

Undulator study

CSPR

BLM

FSTB

fs buncher system

Multi-bunch train

Photo-cathode RF Gun and

accelerator R&D

Multi-cell Accelerating

cavities development

Project candidatesTHz imaging

Mini-workshop for advanced THz and Compton X-ray generation

619 March 2013

THz

prog

ram

Laser system (FSTB + Nd:YAG)

Establishment of FSTB infrastructure

FSTB startup, stable operation

Reliable and routine laser beam diagnostics

Buncher development

Ti:Sa 3rd harmonicSynchronization with

LUCX timing

Integration with LUCX control soft

Modification of LTL. Optical switch between

FSTB and Nd:YAG

Accelerator side

Vacuum systemmodification in a

course of 2012 LUCX upgrade

THz chamber and manipulator design and Manufacturing

Benchmarking, calibration

Installation into beamline

fs electron beam generation

Cs2Te Cathode response time study

Longitudinal beam size diagnostics

MeasurementSystem and DAQ

THz spectrum measurements

Shot-by-shot intensity Mechanical part of THz detection system DAQ & soft

!!!

!!!

!!!

- ≥ 50% completion

!!! – vast importance

LUCX activities key points• Accelerator

– Generation of a stable ps and fs electron beam – Reliable beam diagnostics – Ability to measure longitudinal beam profile– Beam dynamics simulation (with intension to make it on-line)– Control upgrade (Soft&Space)

• Laser system– Will be shown in a next talk by Dr. K. Lekomtsev

• THz Measurement system– Will be shown in a next talk by Dr. M. Shevelev

• Compton experiment– Covered by prof. J. Urakawa on March 18th

• CDR experiment– Covered by Dr. A. Aryshev on March 18th

19 March 2013

LUCX Facility

19 March 2013 Mini-workshop for advanced THz and Compton X-ray generation 8

FSTB

Nd:YAG

Modulator #0

KLY#0

LUCX accelerator tunnel

KLY#1

Modulator #1LUCX control room

Mini-workshop for advanced THz and Compton X-ray generation

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LUCX “2012 UPGRADE”:THZ, 12-CELL BOOSTER

19 March 2013

Mini-workshop for advanced THz and Compton X-ray generation

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LUCX “2012 upgrade”

19 March 2013

GV

GVTHz chamber

CDR Compton THz

Mini-workshop for advanced THz and Compton X-ray generation

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LUCX “2012 upgrade”, e-optics

19 March 2013

“Compton optics”

THz Compton CDR

Mini-workshop for advanced THz and Compton X-ray generation

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LUCX beam diagnostics• BPMs

– Well established Button BPM system• Profile monitors (Screens: OTR, “DMQ”)

– Require upgrade (CCDs, analysis) -> better emittance measurements• Beam Charge monitor

– Well established, FC and ICTs• Beam energy, energy spread

– Well established, but after 12-cell booster• Beam loss monitor

– So-called “plick” or a simple gamma detector – has to be installed• Longitudinal profiling

– Has to be developed. Candidates: Streak camera, Deflecting cavity.

19 March 2013

Mini-workshop for advanced THz and Compton X-ray generation

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LUCX Control upgrade

• Control room re-arrangement to accommodate large collaboration groups

• Control PCs and display system upgrade• Control soft at present will be the same with the

slow upgrades in the future• FemtoSecondTestBench control and monitors will

be installed and included into the main LUCX control soft

• Well defined and documented API

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Mini-workshop for advanced THz and Compton X-ray generation

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Resources

• THz program web:http://www-atf.kek.jp/thz/index.html

• LUCX wiki (documentation, e-log, etc.):http://atf.kek.jp/twiki/bin/view/LUCX/WebHome

• QB program web:http://kocbeam.kek.jp/

19 March 2013