Details

Autor(en) / Beteiligte

• Pflueckhahn, D
• Fauve, E
• Heloin, V
• Kaminski, S
• Peterson, T
• Pucci, J
• Ravindranath, V
• Sevilla, J
• Dalesandro², A
• Klebaner, A
• Martinez, A
• Soyars², W
• Arenius, D
• Bevins, M
• Hogan, J

Titel

LCLS-II helium cryoplant and cryo distribution system installation

Ist Teil von

• IOP Conference Series. Materials Science and Engineering (Online), 2022-05, Vol.1240 (1), p.12113

Ort / Verlag

Bristol: IOP Publishing

Erscheinungsjahr

2022

Quelle

Free E-Journal (出版社公開部分のみ）

Beschreibungen/Notizen

• Abstract The helium cryoplant and cryo distribution system (CDS) are key elements of the new superconducting Linac Coherent Light Source (LCLS-II) and will provide superfluid helium to the accelerator. The cryoplant consists of two helium refrigerators with an equivalent 4.5 K refrigeration capacity of 18 kW each. The 37 cryomodules of the LINAC will be operated at a temperature of 2.0 K to accelerate a 4 GeV electron beam that will generate extremely bright X-ray laser light. Two five-stage cold compressor cold boxes will be utilized to provide superfluid helium II for the superconducting cavity structures with a total cooling capacity of 8 kW at 2.0 K. This paper describes the installation of the LCLS-II cryoplant and CDS. The LCLS-II cryoplant was designed and contributed by Jefferson Lab. To expedite the project completion the reuse of proven design and technology from the Jefferson Lab CHL-2 cryoplant was the preferred strategy. The CDS consists of ∼260 m thermally shielded and vacuum super insulated transfer lines, two distribution boxes and eight feed and end caps, and was designed and contributed by Fermilab. SLAC installed the cryoplant components into a newly erected building and the CDS components into the existing accelerator tunnel and klystron gallery with strong engineering support from both partner labs.