Spallation target cryogenic cooling design challenges at the European Spallation Source
(2015) Cryogenic Engineering Conference (CEC) / International Cryogenic Materials Conference (ICMC) 101. p.012082-012082- Abstract
- The European Spallation Source (ESS) project is a neutron spallation source research facility currently being designed and built outside of Lund, Sweden. A linear accelerator delivers a 5 MW, 2.0 GeV, 62.5 mA proton beam to a spallation target to generate fast neutrons. Supercritical hydrogen circulates through two moderators surrounding the target, and transforms the fast neutrons emitted into slow neutrons, which are the final form of useful radiation. The supercritical hydrogen is in turn cooled from a helium cryogenic plant operating at 15-20 K. The supercritical cryogenic hydrogen circuit is a dynamic system, subject to significant changes in heat load. Proper pressure control of this system is critical to assure safe operation. The... (More)
- The European Spallation Source (ESS) project is a neutron spallation source research facility currently being designed and built outside of Lund, Sweden. A linear accelerator delivers a 5 MW, 2.0 GeV, 62.5 mA proton beam to a spallation target to generate fast neutrons. Supercritical hydrogen circulates through two moderators surrounding the target, and transforms the fast neutrons emitted into slow neutrons, which are the final form of useful radiation. The supercritical hydrogen is in turn cooled from a helium cryogenic plant operating at 15-20 K. The supercritical cryogenic hydrogen circuit is a dynamic system, subject to significant changes in heat load. Proper pressure control of this system is critical to assure safe operation. The interaction between the hydrogen system and helium cryoplant poses unique challenges. This paper investigates the impact of the hydrogen system constraints on operation and control of the helium cryoplant, and suggests design options for the helium circuit. (Less)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/8739060
- author
- Jurns, John LU ; Ringner, J. ; Quack, H. ; Arnold, Philipp LU ; Weisend, John LU and Lyngh, Daniel LU
- organization
- publishing date
- 2015
- type
- Chapter in Book/Report/Conference proceeding
- publication status
- published
- subject
- host publication
- IOP Conference Series: Materials Science and Engineering
- volume
- 101
- pages
- 012082 - 012082
- publisher
- IOP Publishing
- conference name
- Cryogenic Engineering Conference (CEC) / International Cryogenic Materials Conference (ICMC)
- conference dates
- 2015-06-28 - 2015-07-02
- external identifiers
-
- wos:000368434700082
- scopus:84959866358
- ISSN
- 1757-899X
- 1757-8981
- DOI
- 10.1088/1757-899X/101/1/012082
- language
- English
- LU publication?
- yes
- id
- 1e3eabe2-6afa-4800-92c3-4d0e03010580 (old id 8739060)
- date added to LUP
- 2016-04-01 11:10:07
- date last changed
- 2024-01-07 09:32:15
@inproceedings{1e3eabe2-6afa-4800-92c3-4d0e03010580, abstract = {{The European Spallation Source (ESS) project is a neutron spallation source research facility currently being designed and built outside of Lund, Sweden. A linear accelerator delivers a 5 MW, 2.0 GeV, 62.5 mA proton beam to a spallation target to generate fast neutrons. Supercritical hydrogen circulates through two moderators surrounding the target, and transforms the fast neutrons emitted into slow neutrons, which are the final form of useful radiation. The supercritical hydrogen is in turn cooled from a helium cryogenic plant operating at 15-20 K. The supercritical cryogenic hydrogen circuit is a dynamic system, subject to significant changes in heat load. Proper pressure control of this system is critical to assure safe operation. The interaction between the hydrogen system and helium cryoplant poses unique challenges. This paper investigates the impact of the hydrogen system constraints on operation and control of the helium cryoplant, and suggests design options for the helium circuit.}}, author = {{Jurns, John and Ringner, J. and Quack, H. and Arnold, Philipp and Weisend, John and Lyngh, Daniel}}, booktitle = {{IOP Conference Series: Materials Science and Engineering}}, issn = {{1757-899X}}, language = {{eng}}, pages = {{012082--012082}}, publisher = {{IOP Publishing}}, title = {{Spallation target cryogenic cooling design challenges at the European Spallation Source}}, url = {{http://dx.doi.org/10.1088/1757-899X/101/1/012082}}, doi = {{10.1088/1757-899X/101/1/012082}}, volume = {{101}}, year = {{2015}}, }