FREIA Test Stand Status and Outlook Roger Ruber for the FREIA - - PowerPoint PPT Presentation

▶
freia test stand status and outlook
SMART_READER_LITE
LIVE PREVIEW

FREIA Test Stand Status and Outlook Roger Ruber for the FREIA - - PowerPoint PPT Presentation

May 31, 2023 551 likes •771 views

FREIA Test Stand Status and Outlook Roger Ruber for the FREIA Laboratory Uppsala University ESS WP10 Internal Review 22 May 2014 What & Whom? Facility for Research Instrumentation and Accelerator Development State-of-the-art Equipment

slide-1
SLIDE 1

FREIA Test Stand Status and Outlook

Roger Ruber for the FREIA Laboratory Uppsala University ESS WP10 Internal Review 22 May 2014

slide-2
SLIDE 2

What & Whom?

22-May-2014 WP10 Review - Roger Ruber - FREIA Status and Outlook 2

Facility for Research Instrumentation and Accelerator Development

cryogenics

  • liquid helium
  • liquid nitrogen

control room

  • equipment controls
  • data acquisition

RF power sources 3 bunkers with test stands horizontal cryostat vertical cryostat

Competent and motivated staff

collaboration with HEP & NP (IFA), solid-state electronics (Teknikum), Ångström workshop and TSL 28 Feb 2014

Funded by KAWS, Government, Uppsala Univ.

State-of-the-art Equipment

slide-3
SLIDE 3

The New FREIA Laboratory

22-May-2014 WP10 Review - Roger Ruber - FREIA Status and Outlook 3 18 June 2013

Photos courtesy T. Thörnlund/UU

17 October 2013 15 October 2013 30 January 2014

Inaugurated 18 June 2013

25 Oct. 2013 19 February 2014

First Liquid Helium 14 March 2014

slide-4
SLIDE 4

On-going Projects (UU-ESS Contract)

Frequency [MHz] Total # of cavities Total # of cryomodules 352.21 26 13

High-power Spoke Linac Testing

UU-ESS-IPNO-CERN Collaboration

  • high power soak testing of

power source, controls, amplitude and phase stability with accelerating cavity

  • test cavity tuning system, dynamic load,

electron emission and multipactoring

RF Source Development

UU-ESS-CERN-Industry Collaboration

  • vacuum tube amplifier (Thales,

Electrosys)

  • solid-state amplifier (Siemens)
  • SSA module & combiner optimization

(NXP, ESRF)

22-May-2014 WP10 Review - Roger Ruber - FREIA Status and Outlook 4

ESS funding 2011 – 2015 spoke prototype

slide-5
SLIDE 5

Future Projects (New UU-ESS Contract)

Spoke Linac Cryomodules (13#) UU-ESS-IPNO Collaboration

  • continue prototype testing (2016)
  • acceptance testing of spoke linac

cryostat with 2 cavities each

  • requires high throughput and planning

(7-8 weeks per cryomodule)

Spoke Linac Valve Boxes (13#) UU-ESS-IPNO Collaboration

  • valve box connecting cryomodule to the

cryogenic distribution line

  • prototype testing
  • series testing (tbc)

22-May-2014 WP10 Review - Roger Ruber - FREIA Status and Outlook 5

slide-6
SLIDE 6

Contractual Time Line

ESS-UU contract 2011, updated 2013 (until end 2015) Discussion started on new contract ESS deliverables

  • 30-Jun-2014: prototype cavity → delayed (~Dec-2014?) and LLRF
  • 30-Jun-2015: prototype cryomodule and LLRF

UU deliverables

  • 30-Jun-2014: test plan proposal
  • 30-Jun-2015: cavity test report
  • 31-Dec-2015: cryomodule test status report
  • 30-Jun-2016: cryomodule test report (if contract extension)

→ UU might need to delay due to delayed cavity delivery

22-May-2014 WP10 Review - Roger Ruber - FREIA Status and Outlook 6

slide-7
SLIDE 7

Spoke Cavity & Cryomodule

  • IPN Orsay design

– single spoke – f0 = 352.21 MHz – Toper = ~2K

  • Phase 1: Bare cavity test

– with antenna (and helium tank) – low power – verify Orsay measurement at FREIA

  • Phase 2: Dressed cavity test

– with power coupler, tuners – full power – verify behaviour before ordering series

  • Phase 3: Cryomodule & valve box test

– full power on both cavities – verify behaviour before ordering series

22-May-2014 WP10 Review - Roger Ruber - FREIA Status and Outlook 7

deformation

slide-8
SLIDE 8

The Test Stand

  • Three main subsystems needed

RF Power Source Cryostat Cryogenics Spoke Cavity (superconducting)

Courtesy of P. Duthil

Bunker To avoid radiation in public areas:

22-May-2014 WP10 Review - Roger Ruber - FREIA Status and Outlook 8

slide-9
SLIDE 9

Test Stand Implementation (Phase 1)

22-May-2014 WP10 Review - Roger Ruber - FREIA Status and Outlook 9

SSA Power Station Tetrode Power Station Bunker

(Spoke Cryomodule)

Helium Cold Gas Heater HNOSS Horizontal Cryostat

Helium Liquefier

slide-10
SLIDE 10

RF Transmitter

Tetrode based Commercial tender: Electrosys

  • first prototype, ESS pre-series #1
  • based on 2x TH-595, water+air cooled
  • SSA pre-amplifier

Solid-state based Industry development: Siemens

  • R&D towards alternative technology
  • based on 4x 100 kW 19” racks
  • vendor-specific combiners

– different design 1st and 2nd stage

22-May-2014 WP10 Review - Roger Ruber - FREIA Status and Outlook 10

slide-11
SLIDE 11

Tetrode TH-595 Test Results

22-May-2014 WP10 Review - Roger Ruber - FREIA Status and Outlook 11

slide-12
SLIDE 12

RF Distribution

Connecting

  • 3x RF power station

– 2x tetrode – 1x SSA

  • 3x cavity

– 1x in HNOSS – 2x in cryomodule (CM)

  • 2 lines

– 1x coaxial line: SSA/tetrode to HNOSS/CM – 1x waveguide line: tetrode to CM

  • use

– circulator w/o pressurization (prototyping) – ferrite and resistive loads (prototyping) – coaxial switch – directional couplers etc

22-May-2014 WP10 Review - Roger Ruber - FREIA Status and Outlook 12

slide-13
SLIDE 13

Cryogenics

Cryogenic System Commercial tender: Linde

  • Over 140 l/h at 4.5K (LN2 pre-cooling)
  • 2000 l LHe dewar/buffer, 3+1 outlets
  • 20 m3 LN2 tank
  • 100 m3 gasbag + recovery system
  • HNOSS connected in closed loop

22-May-2014 WP10 Review - Roger Ruber - FREIA Status and Outlook 13

slide-14
SLIDE 14

HNOSS Horizontal Cryostat

HNOSS: Horizontal Nugget for Operation of Superconducting Systems Commercial tender: Cryo Diffusion Design: ACS

  • Main Vacuum Vessel

– 3240 x ø1300mm inner volume – “beam” axis at 1600mm

  • Valve box (on top of main vessel)
  • Interconnection box (ICB)

– Distributes cryogens to HNOSS and CM

  • Cryogenic transfer lines

– LN2 and LHe

  • Gas heater for return GHe

– from 2K to 300K

  • Control system

+ mock-up cavity for acceptance test

22-May-2014 WP10 Review - Roger Ruber - FREIA Status and Outlook 14

slide-15
SLIDE 15

Bunker for Radiation Protection

22-May-2014 WP10 Review - Roger Ruber - FREIA Status and Outlook 15

Chicane:

  • Waveguides
  • Return GHe lines

Bunker interior

10 400 mm 4 800 mm 4 000 mm

Expected average < 1µSv/h outside the bunker

slide-16
SLIDE 16

Controls and Monitoring

  • LLRF

– developed by Lund University – based on DESY µTCA (special 500MHz module)

  • Controls and Interlocks

– EPICS standard – using ESS control box – based on NI cRIO system

  • Monitoring

– LabVIEW – based on NI hardware

  • FPGA with FlexRIO ADCs (5772:12bit, 1.6Gs/s)
  • PXI ADCs (5160: 10bit, 2.5Gs/s, 500MHz)

– help from NI engineers for code development

22-May-2014 WP10 Review - Roger Ruber - FREIA Status and Outlook 16

slide-17
SLIDE 17

Auxiliary Systems

Vacuum

  • sub-atmospheric pumps
  • insulation vacuum cryostats
  • “beam” vacuum cavities

Cooling

  • Cooling

– RF power station – vacuum pumps – cryo compressors – power couplers (tbc)

22-May-2014 WP10 Review - Roger Ruber - FREIA Status and Outlook 17

slide-18
SLIDE 18

Project Planning Time Line

22-May-2014 WP10 Review - Roger Ruber - FREIA Status and Outlook 18

2013 2014 2015 Q1 Q2 Q3 Q4 Q1 Q2 Q3 Q4 Q1 Q2 Q3 Q4 Cavity bare X dressed X Cryomodule module X valve box X Controls LLRF X X RF transmitter tetrode O X SSA X distribution X X Cryogenics liquefier X 2K pumps O X Cryostat O X Controls controls X monitoring X

slide-19
SLIDE 19

Status Overview

  • Technical maturity

– overall delay in order of 3-6 months – prototype testing prepares us for series testing – based on proven technology

  • Requirements and interfaces

– workshop on testing organized last Nov 2013, next one after Summer – discussion continuing, working on test proposal

  • Outstanding procurement & developments

– valve box for cryomodule testing – RF distribution parts – vacuum pumps and mobile clean room

  • Resources

– staff is limited which delays some work but working on new recruitment – excellent team with broad knowledge, well defined responsibilities – excellent collaboration with IPNO, ESS, CERN and DESY

22-May-2014 WP10 Review - Roger Ruber - FREIA Status and Outlook 19

slide-20
SLIDE 20

Conclusions

22-May-2014 WP10 Review - Roger Ruber - FREIA Status and Outlook 20

  • Status

– have delays, but we manage it – time might be short towards end of contract & ESS decision on order

  • FREIA laboratory enables

– excellent test facilities for (spoke) cavities – development and test of cavities, controls and others...

  • FREIA team is good on the way

to complete its tasks!

  • We should agree on the new

contract for 2016-2019.