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Cryogenic Control System for HIE-ISOLDE Project at CERN

Explore the commissioning of the cryogenic control system for the HIE-ISOLDE project at CERN, enhancing beam quality, intensity, and flexibility. Learn about the advanced equipment and project phases for this cutting-edge facility upgrade.

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Cryogenic Control System for HIE-ISOLDE Project at CERN

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  1. HIE ISOLDE commissioning of the cryogenic control system installation at CERN. LNL-INFN 22/07/2015 Dr. Marco Pezzetti (CERN) TE-CRG-CEControls and Electrical Support for cryogenics

  2. The HIE-ISOLDE project ISOLDE Isotope Separator OnLine Device

  3. The HIE-ISOLDE project • The High Intensity and Energy (HIE) ISOLDE project is a overall upgrade of the ISOLDE facility at CERN. • Consists in a superconducting linear accelerator of radioactive ion beams to study the nuclear physics. • Involves a increase of the intensity and energy in the beam and an improvement of its quality and flexibility.

  4. The HIE-ISOLDE project • In order to achieve this energy, 32 superconducting RF cavities and 8 small solenoids, grouped in six cryo-modules (4.5 K), will be installed. • To comply with the project requirements it is necessary a new Cryo-station. Such is comprised of a compressor, coldbox and a distribution unit.

  5. CP 199 198 CB DW JB5 JB3 JB2 JB4 JB6 JB1 RM Exp. Hall 170 CM1 CM2 CM6 CM5 CM4 CM3 CP + CB + Distribution unit

  6. QSK1H-QYC32,33,34,42,43 = 199 QSC1H-EM03 = 198 QSR1H-QYC11 = 199 QSC1H-EM02 = 198 QSR1H-EM12 = 199 QSR1H-EM35 = 199 QSI1H-QYE21 = 199 QSK1H-QYC31 = 199 QSC1H-QYC01 = 198 199 198 Exp. Hall 170 List racks/cabinets

  7. Compressor station 3.3 KV Motor High-stage Booster B. 198

  8. Compressor Gas inlet Female rotor Oil Input Shaft Male rotor Gas outlet Slide valve Radial bearing Casing Hydraulic Cylinder

  9. Compressor Stepper Buffer 1 & 2 Compressors 1 & 2 detail

  10. Compressor Pressure preparation Regulation start request Step 20 Step 30 Step 40 Step 50 Step 60 CP normal run CP stopping CP START <20% <20%

  11. Helium Cold Box TCF200 Linde (ex-Sulzer) B. 199

  12. Main characteristics of cryogenic equipment for HIE ISOLDE: • Equipment Unit Value • Cryoplant: (ex-LEP ALEPH plant) • Compressor suction (MPa) 0.104 • Compressor discharge (MPa) 1.4 • Nominal throughput (g s-1) 160 • Cooling power at 4.5 K 630 W & 1.5 g/s liquefaction • 2700 W at 52-75 K • Storage: (m3 STP) 2440 • Gas storage at 1.4 MPa (m3) 160 • Gas bags + buffer at 0.1 Mpa (m3) 200 • Helium Pumping Group: • Suction pressure (kPa) 1.54 • Discharge pressure (MPa) 0.102 • Nominal throughput (g/s) 2.0 B. 199

  13. Diffusion pump Vacuum Primary pump • To pump out the high vacuum insulation spaces in the CB, transfer line and cryostat, two vacuum systems are needed. • In the case of the CB it generates high vacuum using a rotary pump (primary) & diffusion pump. • With this combination we get =~10 -6 mbar Vacuum System for CB

  14. Cold Box

  15. Transfer line

  16. Cryomodules High β Low β • To meet the project needs, SixCryo-modules, split into two families, will be installed. 2 x 4 x High β Low β 5 RF Cavities & 1 Solenoid 6 RF Cavities & 2 Solenoid Total: 32 superconducting RF cavities & 8 solenoids

  17. Cryomodules Project phase 3 B. 170

  18. Cryomodules • Current status of the project: phase 1. Test in SM18-M9 In position, B.170 To be tested in the SM18-M9 over the next months. Currently in operation status at 4.5K.

  19. Distribution & Cryomodule CP CB Transfer line + Jumper Box RM Vacuum Current leads Dewar Cryomodule

  20. Jumper box Cryomodule FIP Profibus PA

  21. Cryomodule Profibus PA FIP

  22. Current leads Profibus DP Cabled signal

  23. Return module Profibus PA

  24. WorldFIP bus • 1 FEC CPU • 25 WorldFIP crates in the final phase. • 100 agents. • 56 channels installed for the infrastructure: • - 28 Connected. • - 28 Spare. • 768 channels expected for the 6 Cryomodules: • ~ 43% declared as spare. • ~ 69 connected for the CM in position 2.

  25. Profibus • 1 CPU S7-300. • 1 Interface ET200. • 8 Link. • 16 Couplers PA: • 17 Slaves DP:

  26. Operation Stepper – CM2

  27. Operation Stepper – CM2 Operation Stepper

  28. Operation Stepper – CM2

  29. First cold down of the HIE cryomodule 1/2

  30. First cold down of the HIE cryomodule 2/2

  31. Cryomodule cryostat measured heat load

  32. Conclusion • Cryogenic refurbishing done without main issues. • Cryogenic control system is a CERN cryogenic group standard. • Commissioning phase with cryomodulecooled down with LHe, progressing well. • LHelevel remains stable while tests on the solenoid and cavities are progressing. • Commissioning with beam expected next October 2015. • Second cryomoduleinstallation in progress, test in SM18 M9 end of the year.

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