A heat exchanger between forced flow helium gas at 14 to 18 K andliquid hydrogen at 20 K circulated by natural convection

Conference · Mon Sep 15 00:00:00 EDT 2003

OSTI ID:918113

Green, M A; Ishimoto, S; Lau, W; Yang, S

The Muon Ionization Cooling Experiment (MICE) has three 350-mm long liquid hydrogen absorbers to reduce the momentum of 200 MeV muons in all directions. The muons are then re-accelerated in the longitudinal direction by 200 MHz RF cavities. The result is cooled muons with a reduced emittance. The energy from the muons is taken up by the liquid hydrogen in the absorber. The hydrogen in the MICE absorbers is cooled by natural convection to the walls of the absorber that are in turn cooled by helium gas that enters at 14 K. This report describes the MICE liquid hydrogen absorber and the heat exchanger between the liquid hydrogen and the helium gas that flows through passages in the absorber wall.

• Research Organization: Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
• Sponsoring Organization: USDOE
• DOE Contract Number: DE-AC02-05CH11231
• OSTI ID: 918113
• Report Number(s): LBNL-53719; R&D Project: 1; BnR: YN0100000; TRN: US0805242
• Resource Relation: Conference: Cryogenic Engineering Conference 2003, Anchorage,Alaska, 22-26 September 2003
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
CAVITIES
CRYOGENICS
HEAT EXCHANGERS
HELIUM
HYDROGEN
IONIZATION
MICE
MUONS
NATURAL CONVECTION