Hydrogen recycling in tandem mirror machines
This paper describes hydrogen recycling in tandem mirror machines. In TMX, hydrogen (or deuterium) is introduced by the neutral beam injection system and by the solenoid gas feed system. Pumping is achieved by titanium gettering on liquid nitrogen panels. Mirror machine recycling differs from that in a tokamak. In mirrors, plasma losses are mainly to the large volume at the ends of the machine, remote from the hot plasma region. Similar techniques have been employed on 2XIIB. The design of the TMX vacuum system was described by Atkinson. MFTF also employs an integral beam line vacuum system. However, since in MFTF the pulse length is 0.5 sec, helium cryopanels are used to extend the pumping duration. Also special neutral beam and beam-ion dumps are employed.
- Research Organization:
- Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
- DOE Contract Number:
- W-7405-ENG-48
- OSTI ID:
- 5862901
- Report Number(s):
- UCID-18322; TRN: 80-000507
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
TMX DEVICES
RECYCLING
CRYOPUMPS
DEUTERIUM
GETTERS
HYDROGEN
NEUTRAL ATOM BEAM INJECTION
TITANIUM
VACUUM SYSTEMS
BEAM INJECTION
CRYOGENIC FLUIDS
ELEMENTS
FLUIDS
HYDROGEN ISOTOPES
ISOTOPES
LABORATORY EQUIPMENT
LIGHT NUCLEI
MAGNETIC MIRRORS
METALS
NONMETALS
NUCLEI
ODD-ODD NUCLEI
OPEN PLASMA DEVICES
PUMPS
STABLE ISOTOPES
THERMONUCLEAR DEVICES
TRANSITION ELEMENTS
VACUUM PUMPS
700205* - Fusion Power Plant Technology- Fuel
Heating
& Injection Systems