srf test facility at fermilab

Test Facilities for SRF Cavity R&DCTF

Cryogenic Test Facility – CTF Service building for MDB• Three (3) Tevatron satellite refrigerator systems (STAR) • Four (4) Mycom compressors• Transfer line from CTF to MDB• Purifier compressor • Purifier skid

Meson Detector Blg

Meson Detector Building – MDB

• Purifier skid• Storage tanks and buffer Dewars TD MP9

Assembly area & Clean Room

Proton Driver and Single-Module test areas● SCRF test caves● 2 K operation using a vacuum pump

capable of 10 g/sec @1.8 K @● + 200 W @ 80 K

New Muon Lab - NMLHigh-Brightness Photoinjector and ILC areas

AD Cryo Dept.New Muon Lab

g g j

New Cryogenic Areas and Era – R&D

Fermilab is developing a broad capability to process and test many types of SRF cavities

Technical Division Vertical Test Stand

b ld Meson Detector building Capture Cavity 2 (1.9 GHz) Horizontal Test System (3.9 GHz) Spoke Resonator Test Cryostat

Vertical Test Stand

Horizontal Test Stand

C it t t B “d d” Spoke Resonator Test Cryostat Front end of the HINS (325 MHz)(High Intensity Neutrino Source)

Cavity state Bare “dressed”

Power coupler Axial coupler Side coupler

RF power Low power, High power,

New Muon Lab ILC Front end

RF power CW pulsed

Turnaround ~1 day ~1 week

R i d’êt

Testing cavity

Testing cavity Raison d’être cavity

surface treatment

cavity handling,

accessories

ILC SRF

Vertical Test Stand @ IB1

Initial operation with single bare 1.3 GHz ILC 9-cell cavities

Baseline: 35 MV/m Q0=10^10Q

Vertical pit

ILCTA - MDB Test Stands Layout

HINS R&DHTS

R&DS

Vacuum Pump

CTF

HINSCC2

CTF

Cryogenic Test Facility

Three Refrigerator Systems (STAR) Three Heat Exchangers (STAR)

Four Mycom CompressorsDewar+heaterControl Room

HINS Transfer Lines – Meson Detector Building

Cryogenic Distribution Lines and Vacuum System

Expansion box and bayonet cans Vacuum pump modification

Pi i b VP d A V P b RiPiping between VP and test Areas Vacuum Pump: booster +Ring pump

RF for CC2 and HTS

ILC RF controls for four Klystron/Cryostat systems

Both 1.3 and 3.9 GHz; 1ms@10Hz;Fast phase shifter control (100 kHz BW)

Development system in the LLRF test lab

A CW system sometime in the future

Capture Cavity 2

Capture Cavity 2 is a high gradient superconducting cavity destined to upgrade the PhotoInjector to 40 MeV.

Measured Peak Gradient: 31 MV/mQo=10^10

Al i d Also permitted to test:- Cryogenic systems- High Level RF power systems- Low Level RF control systems- Klystron & Modulator Interlocks- Piezo-electric Fast Cavity Tuner- Clean Room Facilities

Horizontal Test Stand

Horizontal Test Cryostat

C22 – ILC type 2 SRFC22 – ILC type 2 SRF C22 ILC type 2 SRFC22 ILC type 2 SRF

HINS Transfer Lines – Meson Detector Building

High Intensity Neutrino Source

Front End Layout Cryostat for HINS spoke cavity R&D

=0 22 Cold Mass AssemblySpecification:

cavity R&D

=0.22 Cold Mass Assembly325 MHz45mA

SSR-1 Cryomodule Interconnect

Control aspect - EPICS

4-Mation via MODULBUS to the APACS Controller

logic bl k dblocks and feedback blocks

New Muon Lab (NML)

CC1 CC2RF Gun

CC1 CC2

RF GunCC1

Klystron GalleryLASEREarlier layoutEarlier layout

CC1 CC2

ILC Cryomodules

1 2 & 31,2, & 3

Purification System – New Muon Lab