HPTF Plans & Progress

Peter LimonMay 11, 2005

May 11, 2005P. Limon --- Accelerator Advisory Committee 2Fermilab

Outline

• A Description of HPTF and Its Goals• HPTF Plan

– General Design Philosophy– Schedule Requirements– The HPTF Plan– Major Risks– Conclusions

May 11, 2005P. Limon --- Accelerator Advisory Committee 3Fermilab

What Is HPTF?

• HPTF is a high-power testing subset of a national superconducting RF R&D effort.

• HPTF will be located at Fermilab.– The Proton Driver and Single-Module test areas will be in the

Meson Detector Building to take advantage of available cryogenics

– The High-Brightness Photoinjector and ILC areas will be in the New Muon Lab to take advantage of the excellent space.

• HPTF supplies infrastructure including space, cryogenics, power and other utilities, controls, radiation shielding, etc., for complete high-power tests.

May 11, 2005P. Limon --- Accelerator Advisory Committee 4Fermilab

HPTF Goals

• Guiding Principles– HPTF will be inclusive of many different types of

modules, <1, =1, and CW– HPTF should not be the cause of delay in the initial

testing program. Be ready when modules are available to test.

• The tests will include:– High-power pulsed and CW RF tests of modules– High-power pulsed and CW tests with beam

May 11, 2005P. Limon --- Accelerator Advisory Committee 5Fermilab

A Plan for HPTF

• Distribute HPTF to Several Locations– The Proton Driver front end and all single-module tests

(without beam) will be at the Meson Lab– The Photoinjector and ILC beam tests will be at the New

Muon Lab– A temporary cryogenic system is required at NML to

meet the schedule. There are two options:• Dewar or tanker-supplied helium and a gas recovery system

in Lab B, or• a satellite refrigerator at NML and compressors at Lab B

May 11, 2005P. Limon --- Accelerator Advisory Committee 6Fermilab

PI @ ILC Schedule - Meson Lab

1. 1 Begin test of Capture Cavity #2 Oct. 2005Major Requirements:

MDB cleaned and ready with small shield caveCryogenics at 4.5 K with controlsLow-power modulator & klystronInterlocks and minimal controls and diagnostics

1.2 Continue test of Capture Cavity #2 Feb. 2006Major Requirements (in addition to above):

Vacuum system for cryogenics at 2 K with controlsMore sophisticated controls & diagnostics

2.1 Begin RF test of ILC module in M-P Jan. 2007Major Requirements:

Single Module Test Area cave in M-P2 K cryogenic capabilityHigh-power modulator & klystronComplete controls & diagnosticsThe first ILC 8-cavity module

2.2 Ongoing tests of ILC modules as delivered

May 11, 2005P. Limon --- Accelerator Advisory Committee 7Fermilab

PI @ ILC Schedule - New Muon Lab

3.1 Begin move of Photoinjctor to New Muon Lab Mar. 2007Major Requirements:

CCM removed from NMLNML cleaned and readyShield cave assembled in NMLEnclosure for laser ready

3.2 Begin tests of Photoinjector + two ILC modules in NML Jan. 2008Major Requirements:

Temporary cryogenic system operational at NMLHigh-power modulators & klystronsComponents for upgrade of PI (e.g. 3.9 GHz cavities, etc.)Beam handling capability

3.3 Begin operation of PI with four ILC modules Jul. 2009Major Requirments

New refrigerator and cryogenic system at NMLTunnel extension of NMLAdditional modulators & klystrons

May 11, 2005P. Limon --- Accelerator Advisory Committee 8Fermilab

The Meson Lab

• Advantages– There is an existing cryogenic system

• 1500 W capability at 4.5 K• Or 60 W capability at 2 K with the addition of vacuum pumps.

– Plus additional capability at 4 K for shields• This is sufficient cryogenics for all PD front end testing

– A lot of available space• There is a potential for a long beam line if we want to test more of the

PD front end.

• Disadvantages– The building is at grade, so a lot of shielding is needed for high-

power beam (i.e. the PI+ ILC beam).– Not enough cryo to run PD and 2 K tests simultaneously

May 11, 2005P. Limon --- Accelerator Advisory Committee 9Fermilab

The Meson Lab

May 11, 2005P. Limon --- Accelerator Advisory Committee 10Fermilab

Meson Refrigerator

May 11, 2005P. Limon --- Accelerator Advisory Committee 11Fermilab

HPTF Plan @ Meson Lab

May 11, 2005P. Limon --- Accelerator Advisory Committee 12Fermilab

Meson East, September 2004

May 11, 2005P. Limon --- Accelerator Advisory Committee 13Fermilab

Meson East 4 May 2005

May 11, 2005P. Limon --- Accelerator Advisory Committee 14Fermilab

Meson Polarized, September 2004

May 11, 2005P. Limon --- Accelerator Advisory Committee 15Fermilab

Meson Polarized, 4 May 2005

May 11, 2005P. Limon --- Accelerator Advisory Committee 16Fermilab

The New Muon Lab

• Advantages– A great space

• Long enough for PI plus two ILC modules• Big enough for all necessary equipment and more

– Space for CW and vertical-dewar tests, for example• Floor is 20’ below grade, making radiation shielding easier• Plenty of unencumbered space around the building for additions

– A new big refrigerator and building– Building a tunnel extension is straightforward– It’s ~ 2 km to the site boundary

• Disadvantages– Must move the Chicago Cyclotron magnet now– A tunnel extension is necessary have more than two ILC modules– Requires a temporary cryogenic system to keep to the schedule

May 11, 2005P. Limon --- Accelerator Advisory Committee 17Fermilab

Additions to the New Muon Lab

• Temporary cryogenics at NML; we have a plan• Moving the Chicago Cyclotron magnet

– Two commercial cost estimates are ~$300 K for rigging• Plus ~$200 K for road and wall removal (w/o contingency and G&A)• Plus ~12 person-months of Fermilab labor for coil removal and prep work

– CCM move should be done before anything is installed into NML• Building a tunnel extension at New Muon.

– A conceptual design and cost estimate are being worked on at FESS. A preliminary estimate is ~$1 million for a 50 m extension (incl. cont + G&A)

– No major modifications to the building structure are required– Tunnel can be built later; not needed until there are more than two ILC

modules• Building the new refrigerator at New Muon

– Being studied: whether the SSC refrigerator stored at ANL will be useful in whole or part. Expect a report in early June; a decision in August.

– A detailed refrigerator specification is being developed

May 11, 2005P. Limon --- Accelerator Advisory Committee 18Fermilab

New Muon & Vicinity

May 11, 2005P. Limon --- Accelerator Advisory Committee 19Fermilab

New Muon Facing South

May 11, 2005P. Limon --- Accelerator Advisory Committee 20Fermilab

New Muon Facing North

May 11, 2005P. Limon --- Accelerator Advisory Committee 21Fermilab

HPTF @ New Muon

May 11, 2005P. Limon --- Accelerator Advisory Committee 22Fermilab

HPTF @ New Muon

May 11, 2005P. Limon --- Accelerator Advisory Committee 23Fermilab

Solution 1 - Temporary Dewars @ New Muon

May 11, 2005P. Limon --- Accelerator Advisory Committee 24Fermilab

Solution 2 - Temporary Satellite @ New Muon

May 11, 2005P. Limon --- Accelerator Advisory Committee 25Fermilab

CONCLUSIONS• We are on track for an early start of cryogenic and RF tests

in the Meson Lab– We are on schedule to have Meson ready for equipment installation by

June 13. The goal is to test a single-cavity module in early FY2006.– Need one week of beam off (Scheduled to start June 6) to install

shielding in beamline tunnels. May need another week of beam off.• The Plan is feasible and satisfies all requirements

– Single modules are tested at Meson Lab and are not delayed– There is no delay in the startup of operations at New Muon Lab.

• There are good options for early temporary cryogenics– The cryogenics at Meson are adequate for all PD front end and single-

modules tests• The modifications to New Muon are slight• The risks are understood

– The major risk is not getting started aggressively