1 / 11

Introduction to Cryomodules for the ESS

This presentation provides an overview of cryomodules for the European Spallation Source (ESS), including the ESS philosophy, goals, stakeholders, and functions of cryomodules. It also discusses the Elliptical Cryomodule flow process and the construction phase of the project.

truiz
Download Presentation

Introduction to Cryomodules for the ESS

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Introduction to Cryomodules for the ESS 2013 January, 9th Christine Darve

  2. The ESS philosophy • Vision & Raison d’etre: Science for Society • Mission: • Design, construct and operate the worlds-leading neutron source • Manage the company business • Core Values: • Excellence; Openness; Sustainability • ESS philosophy: • “Greenfield thinking on a greenfield site” • Limit risk with collaboration choices Goal: to deliver first neutrons before this decade is out  Goal oriented project

  3. Accelerator  98 % of the accelerator is superconducting

  4. Cryomodule stakeholders and ESS Interfaces • ESS cold linacintegrators (e.g. cryogenics, vacuum, conventional facilities) • Safety team • Cryomodule designers • Cavity package designers • Control and instrumentation teams • Component assembly teams • Test teams • ESS system engineer • Survey experts • Toolings(from designer to operation) • Transport Cryogenic distridution Cryogenic distribution Beam Diagnostic Beam Optics Beam Vacuum Radio-frequency

  5. Cryomodule Functions • Cavity package (incl. SRF cavity, Ti helium tank, cold tuning system, and fundamental power coupler) • Cryomodule package : • The supporting and mechanical systems that interface the cavity packages in the test area or in the tunnel • The vacuum vessel, thermal and magnetic shieldingsthat insulate the cavity packages from the ambient conditions • The cryogenic distribution (hydraulic circuits, jumper connection) that interfaces the cavity packages with the cryogenic valve box (CTL, cryoplant) • The instrumentation, control valves and the safety devices

  6. Cavity Cryomodule Technology Demonstrator (ECCTD)  One Technology Demonstrator per cavity family to validate: • Fabrication and industrialization of the cavity and cryomodule: e.g. cleaning, tooling, assy procedures, QA; • The performance of the RF design: e.g. characterize the cavity RF signature; validate RF results obtained in vertical cryostat; • The performance of the thermal and vacuum design: eg. cool-down rate, operating conditions; heat loads; cooling scheme efficiency,leak tightness; • The performance of the mechanical design: e.g. MAWP, stability, alignment; • The safe operation of the cryomodules: e.g. process variables, control loops, operating modes, relieving system and interlock; • Training: e.g. to assemble, to operate.

  7. Construction phase (2013 – 2019) • By 2016: Technology demonstrators to proof the series production • By 2020: Install in tunnel the spoke and the medium beta elliptical cryomodules See presentation on life cycle by Pierre Bosland • Design • Procurement • Conditioning and Assembly • Test with cryogenics and RF environment • Tunnel installation • Commissioning • Operation

  8. Cryomodule Constraints Integrated hazards due to the operating environment: • Radiation environment (high intensity proton beam) • Cryogenic temperature: 2 K (Helium II), cryogenic vessel, pressure vessel • Sub atmospheric condition (31 mbar saturated), leak-tightness • Magnetic environment (14 mGauss) • Staged Approachdue to costing re-scope: • 630 MeV protons to target 3Q 2019 • Staged to nominal power will occur during shutdowns in 2020-2022

  9. Elliptical cryomodule – flow process

  10. Status Meeting - Outlines

  11. Status Meeting - Outlines NB: This “status meeting” withstands for the Milestone 3 in the French-Swedish Cooperation Agreement

More Related