June 28, 2015 to July 2, 2015
JW Marriott Starr Pass Resort
Etc/GMT-7 timezone

Design challenges of a 20kW liquid hydrogen cooling system for The European Spallation Source cold moderators.

Jun 30, 2015, 2:00 PM
Exhibit Hall (Arizona Ballroom)

Exhibit Hall (Arizona Ballroom)

Poster Presentation CEC-02 - Large-Scale Systems, Facilities, and Testing C2PoH - Hydrogen Systems


Jesper Ringnér (ESS) John Jurns (European Spallation Source ESS AB)


A key feature of the target system at ESS will be the cold moderators. With the use of supercritical hydrogen at 17 K and1.5 MPa, the energy of the neutrons is reduced before they reach the instrument lines. The neutrons will deposit significant amounts of energy into the hydrogen that must be removed to maintain the hydrogen at its nominal operating temperature. The cooling for the hydrogen will be provided by the target moderator cryoplant (TMCP). This is the story behind the development of the world's largest LH2 cooling for a neutron source.

Primary author


Hans Quack (TU Dresden) John Jurns (European Spallation Source ESS AB) Mr Marc Kickulies (European Spallation Source) Marcel Klaus (Technische Universitaet Dresden) Philipp Arnold (European Spallation Source ESS AB)

Presentation materials