1. European Spallation Source ERIC
Status ESS
Anders Sunesson
RF group leader
European Spallation Source ERIC

2. Welcome!
Where are we?
What is next?

3. RF Systems RF systems contains two work packages: RF systems provide
Power Converters
RF systems provide
The RF power to accelerate the particles
The power converters to generate the high power RF
The power converters for the magnets in the superconducting linac except the raster magnets
All major components are designed and in most cases ordered, except high beta modulators, high beta klystrons

4. RF Systems Scope RF systems section: Power Converters section:
RF distribution systems
High Power Amplifiers (e.g. klystrons) and auxiliary systems
LLRF systems
Interlock systems
Master Oscillator and Phase reference distribution
Power Converters section:
HV modulators
Spoke RF transmitters
Magnet Power Converters

5. FREIA test facility Uppsala University
FREIA infrastructure for CM test
Spoke serial CM tests
High beta prototype test
LLRF tests
RF Amplifier Stations

6. High Level Schedule –RF systems
2014
2015
2016
2017
2018
2019
2020
2021
2022
2023
2024
2025
Global & Project MS
First Installations
Isrc to DTL1
RBOT
Start user program
Isrc to DTL4
BOT
NC RF systems
Test/Commissioning completed
Start
Phase reference
distribution
Phase reference tested to dog-leg
Start installation
Spoke RF
Tests completed
Start installation
Medium/High b RF
Start installation
Medium b
High b

7. ESS schedule and goals
Top accelerator goal: Beam through RFQ (MEBT, DTL1) during 2019
A lot to accomplish during 2019 to achieve this goal
Beam on dump milestone June 2021
At this time all linac systems, including the complete medium beta LLRF systems, must be ready, installed, and commissioned
Target RF group: All RF including Medium beta, installed before end 2020 (this is to allow debugging and commissioning)
A lot to accomplish, too.

8. The ESS Project – The Big Picture
Today
2018
2019
2020
2021
2022
2023
2024
2025
ISrc to LEBT
ISrc to DTL1
ISrc to DTL4
Beam on Dump (BOD)
Accelerator Ready for Beam on Target (RBOT)
Beam on Target (BOT)
End of Construction
Start Of User Program (SOUP)

9. Accelerator Timeline Today 2018 2019 2020 2021 ISrc to LEBT
3/9/2018
ISrc to DTL1
16/12/2019
ISrc to DTL4
17/8/2020
ISrc to Beam Dump (BOD)
14/6/2021
RBOT
13/9/2021
ISrc to LEBT Beam Commissioning
28 wks
ISrc to DTL1 Beam Commissioning
13 wks
ISrc to DTL4 Beam Commissioning
ISrc to DMPL Beam Commissioning

10. ESS Accelerator Installation Overview
Today
2019
2020
2021
2022
ISrc to DTL1
16/12/2019
ISrc to DTL4
17/8/2020
ISrc to Beam Dump (BOD)
14/6/2021
RBOT
13/9/2021
ISrc to DTL1 Beam Commissioning
13 wks
ISrc to DTL4 Beam Commissioning
ISrc to DMPL Beam Commissioning
NCL Installation (RFQ/MEBT/DTL1)
NCL Installation (DTLs)
NCL RF System Installation
SPK CDS Installation
SPK CM Installation
SPK LWU Installation
SPK RF System Installation
Elliptical CDS Installation
MBL CM Installation
MBL LWU Installation
MBL RF System Installation
HBL CM Installation
HBL RF System Installation
HEBT/A2T LWU Installation
Infrastructure

11. Milestone evolution

12. RF components in tunnel and gallery

13. The End