New X-band testing facility a.k.a. Xbox 2N. Catalan. Lasheras for the X-band testing areas (XTA) activity group

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What is Xbox2?

• A new test bench for testing RF structures at 12GHz above 100MV/m– One structure/three months testing

• CPI VKX-8311A, 50MW klystron – First of this model under construction– Based in SLAC XL5 tube

• Scandinova 50Hz, 450kV modulator• Full time operation expected from next year.• Possible extension in 2014-15 (Xbox3) when

Linac4 klystrons/waveguides are installed

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#2 50 MW klystron (XL-5, CPI) test stand will be able to deliver to the testing area up to 130 MW x 250 ns pulses at 50 Hz repetition rate. The overall power consumption is 43 kW.

From last collaboration meeting. (I. Syratchev)

Xbox1 in building 2013N

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CTF3 klystron gallery CTF2

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Building 150. 352 MHz test stand

Proposed layout for Xbox2 in buidling 150N

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Dmitry Gudkov. RF-PM. See also EDMS 1238874

Proposed layout for Xbox2 in buidling 150

Dmitry Gudkov. RF-PM

• Bunker to be reused as such with small modifications– Chicane modified to minimize

waveguide length– Radiation measurements done

in Xbox1 indicate shielding shall be reinforced on axis

• Modulator uses existing water/electricity distribution

• Top-left area used by the EBIS source tests at least until the end of 2013 (TBC)

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Test bunker

Modulator

Working area

LLRF

Vacuum/TWT

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Modular design (from EDMS 1238874)

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Modular design (from EDMS 1238874)

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• Vacuum sectors for fast turn around– Loads an waveguide

network baked-out– Bake-out of the DUT

after installation

• Adjustable length for DUT– Single and double

structures

• Additional capacity for extra diagnostics

Dmitry Gudkov. RF-PM

• First piece of Xbox2!!• Compact SLED type pulse compressor.• RF measurements and final tuning next week!!• Four more units required

– Review of the concept, fabrication, mechanic support etc., by the end of February.

Pulse compressor

‘’Simple” -60 dB directional coupler.

RF components procurement• Range of components

developed for X band• Design and prototyping ready

end 2012• First orders expected by the

end of May• New x-band flanges for Xbox3

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LLRF• No beam. No synchronizing timing required.• Signal generation, diagnostics and control can be done within a NT PXI rack• Frequency multiplication and down conversion

– Successful tests in the lab• Temperature regulated rack (BI)

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Status of the Xbox• Preparation of the site

– Final layout of the test stand. January 2013.– Cleaning-up the area.– Safety file preparation. RP shielding estimations done.– Shielding reinforcement .– Water system modification.– Electricity modification.– Cabling, Ethernet, compressed air.

• Installation– Modulator procurement. End of March 2013.– Klystron delivery. Delayed by 4 months!!– RF network and components. End of May 2013.– Vacuum network, pumps and valves. LLRF and controls.

• Commissioning– Modulator/klystron unit. – Conditioning of RF network surely 2014.

• Constrains– LS1 resources availability.– Water cut due to LS1 from mid-may until beginning 2014.

PlanningN

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Schedule adjusted

• Yesterday

• Today

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Dec Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Jan Feb MarKlystron procurement

RF components

System tests

No water

LS1

2012 2013 2014

Commissioning

Modulator procurement

Pulse compressor prototypeSite preparation

Network procurementNetwork installation

Dec Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Jan Feb Mar

No water

LS1

Network installationCommissioning

Klystron procurementModulator procurement

RF componentsPulse compressor prototype

Site preparationNetwork procurement

2012 2013 2014

Future:Xbox3. Cluster of small power units• Market survey for klystron-

modulator units out– Call for tender in the next weeks

• Components procurement under way – Waiting for new flanges

• Plan to start installation in2015

Xbox2

Xbox 3

In summary

• New test facility preparation on-going– Site identified– Klystron and modulator under construction– RF components under procurement– Site preparation starting

• Still learning from Xbox1 and dog-leg experiences

• Preparing the way for Xbox3• X-band test capacity multiplied by 3!!

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Thanks for your attention!!

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