Transcript LCPAC 03/25/2005 STF plan overview, 2006 1. Purpose and Goals of STF 2.

LCPAC 03/25/2005
STF plan overview, 2006
1. Purpose and Goals of STF
2. Plan of STF
3. Progress overview
H. Hayano, KEK
Superconducting RF Test Facility
Comprehensive Test Facility dedicated to ILC SC-RF R&D
1. Superconducting Cavity;
fabrication, surface treatment, installation, vertical test / horizontal test,
system test with beam
2. Cryomodule;
cavity installation, alignment, cryostat operation, heat cycle test, input coupler R&D,
tuner mechanism R&D
3. Power source;
modulator development, klystron development, WG components
4. He plant;
High efficiency cryogenic system
5. Beam Instrumentation;
ILC beam generation, BPM, HOM, Low-Level RF control
6. Cavity Surface Treatment Facility;
BCP, CP, EP, HPR, clean room
Regional Base Facility for ILC-SCRF R&D and production capability
Location of Test Facilities
STF
KEK-B
He Plant Control Center
JPARC Proton Linac Building
was refurbished to
STF building in 2005 and 2006.
ATF
1) 60m x 30m building:
Klystron Gallery (with extendable space)
Cavity installation room
magnet power supply room
Control room
Cooling water facility
AC power yard
external Tent House
L-band R&D Stand
#4 building
2) 5m x 3.85m x 93.5m tunnel:
Access hatch was extended to 2m x 10m
with elevator
Cryogenic compressor
Control Room
Klystron Gallery
For EP, Clean Room
Cryogenic liquefier
Infra-structure for SC-RF production
Phase 1
Phase 2
Tunnel from downstream
Tunnel
STF Phase 1 SC accelerator Plan
Linear distribution
with circulator
Power distribution scheme
Tree distribution
without circulator
Main goals of STF
Phase 1 (2005 -2007),
Build up ILC SC-RF technology, (-> S. Fukuda, N. Ouchi
and all )
Establish 35MV/m cavity, (-> E. Kako)
Establish 45MV/m cavity, (->T. Saeki)
Build up SC-RF infra-structure. (->K. Ueno)
Phase 2 (2007 - 2009),
Build ILC Main Linac RF unit,
Achieve ILC BCD performance,
Operate the unit for long time,
Establish engineering design detail and basis of
cost estimation.
Issues of existing ILC-SC engineering
1. Reliability of cavity gradient >35MV/m
2. Complexity and cost of Input coupler
3. Rigidity of cavity-jacket relating to Lorentz detuning
4. Reliability of tuner mechanism, Reliability of Piezo in
cold
5. Cavity alignment after cooling down
6. Cost optimization of RF Waveguide System
7. Cost optimization of cryomodule
…
etc.
* Phase 2 Schedule was changed( 1 year delay).
Sub-group organization
Cryogenic plant : K. Hosoyama ( +4 stuff ) : 0.7FTE
RF power source (inc.LLRF) : S. Fukuda( +12 ) :3.7FTE
Cryomodule (exc. Cavity) : K. Tsuchiya( +4 ):1.9FTE
SC-Cavity Baseline : S. Noguchi( +2 ):3FTE
SC-Cavity High Gradient : K. Saito( +15 ):8.8FTE
Beam, control, and facility : H. Hayano ( +9 +ATF):2.45FTE
Surface Process Facility : K. Ueno ( +3 ):0.9FTE
Total : ~21 FTE for STF
ILC R&D Budget Prospect
not official !
others
1400
STF
1200
ATF2
ATF
400
STF
STF
STF
600
STF
800
STF
1000
STF
M¥
200
0
JFY2005
JFY2006
BCD
RDR
STF phase 1
JFY2007
JFY2008
JFY2009
TDR
STF phase 1.5
ATF2 construction
STF phase 2
JFY2010
H. Hayano’s prospect
STF Budget Prospect
not official !
STF budget prospect
1000
900
800
700
infrastructure
operation
beam
cryogenics
cavity system
cryostat
pow er source
600
M¥
500
400
300
200
100
0
JFY2005
BCD
JFY2006
RDR
STF phase 1
JFY2007
JFY2008
JFY2009
Fiscal year TDR
STF phase 1.5
STF phase 2
JFY2010
H. Hayano’s prospect
Contribution as a Regional Center
China : ILC SC facility plan is under consideration(IHEP).
several people were stayed, and being stayed now.
will send students to STF (2 students for long term.).
Korea : ILC SC facility plan is under consideration(PAL).
collaboration of cavity fabrication is under consideration.
several people were stayed, and being stayed now.
will send students to STF (max 4 students for long term.).
India : They have interest to ILC SC technology.
collaboration discussion will start soon.
( several people will come to ATF, at first. )
STF Test Accelerator overview
-------- phase 1 -----------------------DC gun : DC 200kV CsTe photocathode for quick start
+ UV(262nm) Laser (337ns spacing, 2820bunches)
(later replace to RF-gun)
Test Cryomodule
: 4x 9cell TESLA SC cavity (5m cryomodule), 35MV/m
4x 9cell LL SC cavity (5m cryomodule), 45MV/m
5MW, 1.5ms klystron, 5Hz
-------- phase 2 -----------------------ILC 1 RF Accelerating Unit
: 3 set of 12m (8 cavities) ILC cryomodule
10MW, 1.5ms klystron, 5Hz
STF Infra-structure overview
EP: build new EP(Electro chemical Polishing) facility
HPR : build new High Pressure Rinse by ultra-pure water
Clean room
: build new clean room for cavity assemble
Vertical Test Stand
: build new 9cell test stand,
Cryomodule Assembly
: build cryomodule assembly stand,
Coupler Test Stand
: 5MW, 1.5ms klystron, 5Hz
(switch use between phase 1 Test Cryomodule )
He Plant : 600W at 4K plant moved from AR-East building
(adding new 2K system )
Valve Box
Conceptual design of cryomodule
Weld connection
35MV/m TESLA design cavities
STF Phase 1
45MV/m Low-loss cavities
Become to 8 cavities in one cryostat
Like TTF cryomodule
STF Infra-structure
EP: new EP(Electro chemical Polishing) facility is under design.
Clean room: new clean room installation in March 2006.
Chemical treatment room EP bed of ILC Clean room
for cavity assembly
cryomodule assembly
carry hatch expansion
clean room construction
Cryogenic system Plan
at surface
TRT
（600W @ 4.4 K）
In tunnel
at surface
In tunnel
RF Power Source Status
Reuse an old TH2104A 5MW klystron, driven by an existing PNC modulator
by adding a bouncer circuit and a new pulse transformer.
Mod: by Mitsubishi-Electric, Nichi-Con; Puls trans: by Nihon-Denji-Kogyo
Initial operation is scheduled in April. 2006 for testing the cavity input couplers.
Relocate this system later for running an RF-gun.
Klystron & modulator
Klystron & Waveguide ready.
Waiting for coupler test ready.
Coupler HP test setup
LLRF control Plan
Overall test with cavity simulator in May 2006.
LLRF control,
modified from J-PARC LLRF,
is under design.
CPU
RF&CLK
Mixer&I/Q
DSP/FPGA
I/O
Digital
Analog
Existing J-PARC LLRF
cathode
solenoid
Plan of DC-gun
Existing photo-cathode DC gun
Example of Laser development at TTF
• only low charge beam
can be transmetted.
Plan of RF-gun
Fabricate DESY-TTF RF gun cavity(1.3GHz),
Use ATF Cs-Te photo-cathode technology,
Use Laser which is developed for DC gun,
Replace DC-gun to this RF-gun.
Photo-cathode
Laser
backing coil
Beam
RF cavity
Solenoid coil
• Simulation shows:
capture cavities are necessary for high current transmission
in both DC-gun and RF-gun.
should consider them.
Revised Time Line & Milestone of STF phase 1
After Frascati GDE meeting;
2006.02 8 cavities surface process and vertical test were begun.
2006.03 5MW RF power source will be ready.
2006.04 couplers high power test will begin.
2006.04 clean room ready for use.
2006.07 8 cavities ready for installation (vertical test complete).
2006.07 8 couplers ready for installation (high power test complete).
2006.07 cryostat ready for installation.
2006.09
2006.10
2006.11
2006.12
cryomodule complete.
cryomodule in the tunnel.
cryomodule cool down will start.
RF test & beam test will start.
STF Phase 2 Plan
ILC Main Linac Unit construction.
Major two R&D area
Cryomodule R&D:
Cavity system,
Cryostat,
Quad/BPM,
Power source R&D:
Klystron,
Modulator,
WG distribution,
LLRF control,
BCD (Baseline Configuration Document)
for ILC Main Linac
02112006 H. Hayano
BCD RF unit
Two tunnels with earth curvature,
Cryo-plant with every 5km,
BCD RF unit cartoon (cryo-plant region)
Two tunnel configuration
Multi-beam klystron
Pulse transformer
Bouncer modulator
Rey.hori
RF waveguides
RF distribution
cryomodules
LLRF & instrumentation
ILC Cryomodule R&D world-wide
- cryomodule meeting was held at CERN in Jan.16,17.
- CERN,DESY,FNAL,INFN,JLAB,KEK,SLAC meet together.
- TTF type III+ --> TTF type IV (will be ILC proto-type).
- discussion & work share for ILC proto-type.
- SMTF was a core, however, become global design team gradually.
Type IV cryostat
8 cavities inside
Type IV cavity system
TESLA shape cavity, Blade tuner?
TTF III input coupler
Type IV cryomodule: proposed schedule
1st Qtr
2nd Qtr
3rd Qtr
4th Qtr
2006
1st Qtr
2nd Qtr
3rd Qtr
4th Qtr
1st Qtr
2007
2008
Define design features
Perform engineering analyses
Complete drawing packages
Procure components
All Components in
house and ready
for assembly
By Harry Carter(FNAL)
Who can handle the Type IV cryomodule?
DESY TTF:
- TTF type III+ for XFEL?
- possibility to go type IV is less, maybe.
FNAL SMTF(ILCTA):
- TTF type III+ for 1st FNAL production, in 2006.
- 2nd module will be type IV in 2007.
KEK STF:
- phase 1 cryomodules are short type, and will study in 2007.
- design of phase 2 cryomodule will be in 2007, and will fabricate in
2008, probably type IV design.
What about power source?
Power source R&D
- modulator meeting was held at SLAC in Jan.20, 2005 (a year ago).
- no meeting was held after that.
- LLRF meeting was held several times (with no serious problem).
- no serious item to be developed.
(MBK were going well, bouncer modulator working, waveguide
working…)
- SLAC R&D for ACD (Marx generator modulator for cost reason).
- However, we heard some trouble on MBK (Thales & Toshiba).
(need to review MBK?)
Summary of Overview
•STF Phase 1 construction is on going with several months delay.
•STF infra-structure will become operational in this year.
•Budget is little less, and Man power is reasonable but not even.
•STF Phase 2 start has been delayed 1 year.
•STF Phase 2 component will follow ILC BCD.
global point of view:
•Cryomodule global team launched.
•Power source global team, not yet.
•LLRF global team almost launched.
•FNAL SMTF(ILCTA) construction running well.
•DESY TTF will become busy for XFEL construction.
End of slides