Properties of an electron bubble approaching the surface of liquid helium

1994 ◽  
Vol 50 (17) ◽  
pp. 12820-12830 ◽  
Author(s):  
Francesco Ancilotto ◽  
Flavio Toigo
Keyword(s):  
Liquid Helium ◽  
Electron Bubble

Infrared spectrum of the electron bubble in liquid helium

1990 ◽  
Vol 41 (10) ◽  
pp. 6366-6371 ◽  
Author(s):  
C. C. Grimes ◽  
G. Adams
Keyword(s):  
Infrared Spectrum ◽  
Liquid Helium ◽  
Electron Bubble

Vibrations of an Electron Bubble in Liquid Helium

1968 ◽  
Vol 170 (1) ◽  
pp. 190-193 ◽  
Author(s):  
E. P. Gross ◽  
H. Tung-Li
Keyword(s):  
Liquid Helium ◽  
Electron Bubble

Dynamics of the Formation of an Electron Bubble in Liquid Helium

1995 ◽  
Vol 75 (22) ◽  
pp. 4079-4082 ◽  
Author(s):  
Michael Rosenblit ◽  
Joshua Jortner
Keyword(s):  
Liquid Helium ◽  
Electron Bubble

Cryogenic design and operation of liquid helium in an electron bubble chamber towards low energy solar neutrino detectors

Cryogenics ◽  
2007 ◽  
Vol 47 (2) ◽  
pp. 81-88 ◽  
Author(s):  
Y.L. Ju ◽  
J. Dodd ◽  
R. Galea ◽  
M. Leltchouk ◽  
W. Willis ◽  
...  
Keyword(s):  
Liquid Helium ◽  
Solar Neutrino ◽  
Bubble Chamber ◽  
Low Energy ◽  
Neutrino Detectors ◽  
Electron Bubble

Electrical Properties of Electron Bubble in Liquid Helium II

1973 ◽  
Vol 35 (4) ◽  
pp. 1184-1189 ◽  
Author(s):  
Hidenobu Hori ◽  
Osamu Ichikawa ◽  
Masayoshi Wake ◽  
Muneyuki Date
Keyword(s):  
Electrical Properties ◽  
Liquid Helium ◽  
Helium Ii ◽  
Electron Bubble

A Superconducting Microscope

1971 ◽  
Vol 29 ◽  
pp. 10-11 ◽  
Author(s):  
R. E. Worsham ◽  
J. E. Mann ◽  
E. G. Richardson
Keyword(s):  
Liquid Helium ◽  
Focal Length ◽  
Vacuum System ◽  
Objective Lens ◽  
Electrical Instability ◽  
Radiation Shields ◽  
And Control ◽  
Thermal Oscillations ◽  
Flux Pump

This superconducting microscope, Figure 1, was first operated in May, 1970. The column, which started life as a Siemens Elmiskop I, was modified by removing the objective and intermediate lenses, the specimen chamber, and the complete vacuum system. The large cryostat contains the objective lens and stage. They are attached to the bottom of the 7-liter helium vessel and are surrounded by two vapor-cooled radiation shields.In the initial operational period 5-mm and 2-mm focal length objective lens pole pieces were used giving magnification up to 45000X. Without a stigmator and precision ground pole pieces, a resolution of about 50-100Å was achieved. The boil-off rate of the liquid helium was reduced to 0.2-0.3ℓ/hour after elimination of thermal oscillations in the cryostat. The calculated boil-off was 0.2ℓ/hour. No effect caused by mechanical or electrical instability was found. Both 4.2°K and 1.7-1.9°K operation were routine. Flux pump excitation and control of the lens were quite smooth, simple, and, apparently highly stable. Alignment of the objective lens proved quite awkward, however, with the long-thin epoxy glass posts used for supporting the lens.

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