in a nutshell

• Design a part of the ESS linear accelerator

• Protons surf on microwaves

• Generate microwaves (amplifier)

• Bring them to beam (cavity)

• Cavity is superconducting - Cold storage (cryostat)

- Liquid Helium refrigerator

ESS and Uppsala

Thermos Cryostat

To keep

cavities cold

for long

times

Helium

liquefier

Refrigerator

To make

liquid

Helium

Sound amplifier

Speaker

Radio-frequency

power amplifier

Cavity

To power

the cavities

and see

how

they react