ISSN:
1476-4687
Source:
Nature Archives 1869 - 2009
Topics:
Biology
,
Chemistry and Pharmacology
,
Medicine
,
Natural Sciences in General
,
Physics
Notes:
[Auszug] The helix structure consisted of a wire helix wound on a glass tube which was evacuated to allow the proton beam to pass along the axis. Outside the tube a pressure of 150 Ib./sq. in. was maintained to prevent radio-frequency breakdown between turns of the helix and to assist in cooling. Cooling is ...
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1038/180432a0