TTF / VUV-FEL Schedule 2005 and Project Management Issues

Schedule 2005

Project Organisation

Budget & Controlling

Hans Weise / DESY DESY MAC Meeting November 9th, 2004

TTF Linac Start-up After Final Installation Period

Oct. 31

beam transport to beam dump

meas. dark current from

module 5

ACC1

ACC2,3

ACC4,5

high power processing

gun BC2 BC3 bypass

tunnel closed

Aug. 30

1st beam (bypass)

• re-commissioning of gun + injector• setup cavity phases ACC2-5 beam energy• setup bunch compression• setup beam linear optics, optimize orbit• commissioning of diagnostics

3 weeks

FEL 30 nm 1 bunch

• setup collimation• emittance measurements and optics matching• beam-based alignment in undulator section• commiss. of photon diag. with spon. emission

10 weeks

Saturation & 6-100 nm

• commissioning of FEL diagnostics• study of FEL beam, compression schemes, etc.• establish reproducible settings, etc.

8 weeks

Beam Commissioning

1st beam (bypass)

• re-commissioning of gun + injector• setup cavity phases ACC2-5 beam energy• setup bunch compression• setup beam linear optics, optimize orbit• commissioning of diagnostics

3 weeks

Beam Commissioning

• re-commissioning of gun + injector• setup cavity phases ACC2-5 beam energy• setup bunch compression• setup beam linear optics, optimize orbit• commissioning of diagnostics

donedoneon-goingstartedpartly done, on-going

First measurementbefore adjustment

afteradjustment

FEL 30 nm 1 bunch

• setup collimation• emittance measurements and optics matching• beam-based alignment in undulator section• commiss. of photon diag. with spon. emission

10 weeks

Beam Commissioning

Beam

wirescanner

quadrupole

beam

Ion pump

stretched wireposition

control system

granitebaseplate

A. Fateev et al., Dubna

MCP Diagn.

Saturation & 6-100 nm

• commissioning of FEL diagnostics• study of FEL beam, compression schemes, etc.• establish reproducible settings, etc.

8 weeks

Beam Commissioning

FEL hall PETRA tunnel

beamdump

gas absorber photon diagnosticsphoton

diagnostics

LINAC tunnel

Beam Commissioning Schedule

1st beam (bypass)

• re-commissioning of gun + injector• setup cavity phases ACC2-5 beam energy• setup bunch compression• setup beam linear optics, optimize orbit• commissioning of diagnostics

3 weeks

FEL 30 nm 1 bunch

• setup collimation• emittance measurements and optics matching• beam-based alignment in undulator section• commiss. of photon diag. / spon. emission

10 weeks

Saturation & 6-100 nm

• commissioning of FEL diagnostics• study of FEL beam, compression schemes, etc.• establish reproducible settings, etc.

8 weeks

For 2005 we assume 9 weeks of FEL user operation

2 months FEL studies

2 months accelerator studies (diagn. etc.)includes photon diagnostics

2 months of dedicated acc.module tests

4 months (reserve and/or additional exp.)

Jan 2005

Dec 2005

July 2005

Nov 2004

Sep 2004

Saturation & 6-100 nm

• commissioning of FEL diagnostics• study of FEL beam, compression schemes, etc.• establish reproducible settings, etc.

8 weeks

soon to bediscussedin detail

Schedule until 2007

Saturation in wavelength range 30-120 nm July 2005User operation (extended period)Operation with long bunch train Dec. 2005User operation (extended period)

3rd Harmonic RF system and ACC6 installed spring 20061 GeV beam energySaturation 6 nmUser operation (extended period)

Seeding Option installedSeeding demonstration spring 2007

At first glance schedule looks like being FEL dominated. Is thistrue? Is there room for LC R&D?

ADC

ADC

The TTF Linac uses40 accelerating cavities

with its auxiliaries7 days / week and

24 hours / day.

ILC R&D stronglybenefits from this!FEL user operation

FEL studies

accel. studies

accel. module tests

reserve

Do we have to re-consider the amount of beam time for ILC related issues? The ITRP decision was cold!

One might say: ‘yes, we now have to....‘

But the question really is: ‘what exactly is it, we have orwant to add?‘

Collection of ideas / wish-list from DESY experts on

cavities / module operation / llrf / cryogenics

can be used to establish a detailed programme.

Schedule With Respect to ILC R&D

reserve

ILC R&D - But also XFELa must:

- HPP of cavities to cure field emission

- long term operation of M5 at high gradientsin steps from 20 MV/m to 25+MV/m:

- what are the typical problems?

- any change in dark current?

- how close can we go to the gradient limit?

- processing behaviour after shut down

important:

- repeat test of all cavitiesdetuning of individual cavitiescompare rf calibration with beam

- cryo losses vs. operation time

-check cavity alignment with beam

nice to have:

- Lorentz-force detuning of individual cavities at high gradient

- long beam pulse in ACC1/C5 at 35 MV/m

- optimized piezo compensation ACC1/C5

- RF-distribution optimized with respect to maximumgradient

in general

- many LLRF operational aspects as well as feedback issues

ILC R&D - But also XFELin general

- develop robust algorithm for Lorentz force compensation / piezo tuners at M6 and M1/C5.

- failure recogination and exception handling, esp.close to performance limit

- measurement and optimization of amplitude and phase stability(within bunch train, from train to train, long time)

- automated operation (FSM) of LLRF

- test next generation of LLRF (developed for XFEL: increased ampl. and phase stability)

- beam based feedback algorithms (energy, phase, bunch length)More specific... (with beam)

o measure field stability with beam

o adaptive feedforward (RF only and for beam energy)

o exception handling (quench, operation close to the limit)

o calibration of gradien and phase

o single bunch transient detection

o phase drift betwenn RF and beam

o beam phase with respect to RF phases

o study EMI/EMC (down converter) / reduce noise

o crosstalk between RF systems

o test new FPGA based feedback at the RF Gun.

o test new FPGA based Feedback at ACC1

o develop new control algorithms

o test LLRF FSM with beam

More specific... (without beam)

o LO optimization for downconverter

o check M.O. level and frequency distribution

o measure phase stability of frequency distribution system

o upgrade of downconverter

o remote control of attenuators (probe, forward / reflected power cables)

The TTF / VUV-FEL with its actual commissioning plans

is of great value for the ILC and XFEL program.

A detailed schedule for the next 12 months (year 2005)is under discussion and will be available in 12/2004.

New ideas need new discussions about resources.

Interesting:

Almost all above listed points are of equal importance for the threeprojects VUV-FEL, XFEL, and ILC.

Just very few points are ILC specific.

We are expecting many months of operation as a test for the longterm behaviour of our systems.

Summary Schedule Issues

The Actual Operations Concept

8 run coordinatorswith experience

from TTF1

14 experiencedTTF operators

26 new operators14 physicists

12 techn. or engineers(members of the BKR shift crew)

48 Operators

Run Coordinators: Castro, Faatz, Honkavaara, Körfer,Nölle, Schlarb, Schreiber, Minty

Techn. Run Coord.: Klose, Görler

2 Run Coordinator Meetings per weeksupported by TTF steering group

(one expert from each techn. field)

The Future Operations Concept

2 – 3 scientists

Techn. Run Coordinatorswith eng. / techn. support

fromdifferent M-groups

BKR Shift crew

VUV-FEL Operation (2007?)

Run Coordinators: 2 – 3 scientists most likely out of the actual RC group

Techn. Run Coord.: 2 engineers keep the actual ones, if possible(rf, laser, or physics)

11695103115resource planning M groups

1182118

actual personnel M groupsincl. time limited contracts

visitors

8299115143sum

2007200620052004DESY Group

10121414physicsMPY

0011supportsMPL

7121320vacumm / TTF ctrlsMVP

1011vacuumMVA

1123ctrlsMST

1111feedback etcMSK

20121212cryogenicsMKS

6789electricity / waterMKK

5555gun / laser / LOLAMIN

21324359klystrons / modulators / LLRF

MHFp

3755supercond. RFMHFsl

1111RF waveguidesMHFe

5556installationsMEA

2345diagnosticsMDI

1111radiation protectionD3

Manpower at TTF

needs regular check

to be compensatedwith external FTEs

A firs

t FEL user 30

nm

single

bunch

B full b

eam

curre

nt

C 6 nm FEL opera

tion

for use

rs;ACC6 a

nd

3rd harm

.

D see

ding

E routin

e opera

tion

radiation protectiondiagnosticsinstallationsRF waveguidessupercond. Rfklystrons / modulators / LLRFgun / laser / LOLAelectricity / watercryogenicsfeedback etc.ctrls.vacuumvacuum / TTF ctrls.supportsphysicsinj. R&D

WarsawUniv.LLRF

TTF External Contributions to Installation and Operation

MBIGun Laser

SLACTransverse deflectingcavity LOLA

INFN FrascatiOTR Diagnostics

CE SaclayFreq.TunerBPMs

FNALRF Gun / CryogenicsRF Modulators

INFN MilanoCathodesAccel.Modules

Installation

AyvazyanSimrock

WarsawUniv.LLRF

Schreiber

Honkavaara

SchlarbKlose

LangeNölle / Baboi

Schreiber

DESY Coord.

MBIGun Laser

SLACTransverse deflectingcavity LOLA

INFN FrascatiOTR Diagnostics

CE SaclayFreq.TunerBPMs / HOM Studies

INFN MilanoCathodes

Operation

RehlichITEPMoscow Univ.

Ctrls

ChorobaProtvinoRF

AyvazyanRehlich

YerPhiCtrls

additional manpower

Budget planning done in technical groups with reconciliation by project management Budget for 2005 – 2007: 2.5 M€ per year w/o personel costs

additional projects might need new resources

TTF / VUV-FEL Budget

Budget Controlling done using internal book keeping plus SAP