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Anderson, D.; Cooper, A.; Fifield, K.; Foote, G.; Harding, A.; Lobanov, N.; Muirhead, A.; Wallace, H.; Weisser, D.
10th Australian conference on nuclear techniques of analysis. Proceedings1998
10th Australian conference on nuclear techniques of analysis. Proceedings1998
AbstractAbstract
[en] The main features of the new equipment in the 16 MV terminal of the Australian National University 14UD accelerator are described. With the new gas stripper in place, the gas emerging from the canal is now pumped by a pair of turbo-molecular pumps which then recirculate the gas back in to the centre of the canal. The pumping is consistent and is not limited by titanium sublimer lifetime. Additional ion pumps and pumping impedances, isolate the region of gas pumped by the turbos from the accelerating tubes. The average pressure in the tubes is more than a factor of 10 lower than with the old system, thus reducing the background in AMS experiments. Several computer controlled power supplies tare used for the turbo pumps, ion pumps, vacuum gauging and the electrostatic quadrupole triplet lens. The use of sophisticated electronics in the terminal has required the development of devices to protect the equipment from lightning like 16 MV sparks. The third crucial feature is the invention of a protection scheme for the fibre optic pair which communicate between the ground based computer control system and the device interfaces in the terminal. This protection eliminates both mechanical damage and spark damage to the fibres. The spark protection scheme has achieved zero fault operation ia a spark plagued period
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Australian Institute of Nuclear Science and Engineering, Lucas Heights, NSW (Australia). Funding organisation: Australian Institute of Nuclear Science and Engineering, Lucas Heights, NSW (Australia); Vacuum Society of Australia (Australia); Australian National Univ., Canberra, ACT (Australia); 244 p; 1998; p. 100-103; 10. Australian conference on nuclear techniques of analysis; Canberra, ACT (Australia); 24-26 Nov 1997; 1 fig.
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