Conversi, M.; Gozzini, A.; The "Hodoscope Chamber'': a New Instrument for Nuclear Research
Nuovo Cim. 2 (1955) 189;
A new instrument, which may be defined as a "hodoscope chamber'', has been developed for the detection of events occurring in nuclear or electromagnetic interactions. It is based on the following principle. If a strong electric field is produced soon after the passage of an ionizing particle in a region of space filled with a gas, then a luminous discharge occurs all over this region as a consequence of the processes following the acceleration undergone by the electrons freed by the impinging
particle. The hodoscope chamber that we are going to describe is essentially a parallel plate condenser filled with a large number of thin glass tubes containing neon at a pressure of 35 cm Hg ... (Extracted from the introductory part of the paper.).
Related references More (earlier) information appears in M. Conversi et al., Int. Conf. on Elementary Particles, Pisa, (12-18th June, 1955);