The Plasma Tube The plasma tube consists of a long capillary tube (1mm diameter) sur- rounded by a hermetically sealed (glass or steel) outer tube. The laser action that produces the beam occurs in the central capillary tube as the high voltage DC is applied to a mixture of gases (...
This value was rounded in [11]. c Result of extrapolation, see [14]. d Result from Ref. [13]. e Result from Ref. [16]. f Result from Ref. [17]. The third row shows values of the 4 He– 4 He 2 scattering length. Notice that in Ref. [14] our ...