Wire chamber

Details Wire chamber Wire chamber

1987-05-12

1989-08-15

Fields, Carolyn E.

Radiant energy

Invisible radiant energy responsive electric signalling

Including a radiant energy responsive gas discharge device

2503851, 313 93, G01T 1185

Patent

active

048577405

ABSTRACT:
A wire chamber or proportional counter device, such as Geiger-Mueller tube or drift chamber, improved with a gas mixture providing a stable drift velocity while eliminating wire aging caused by prior art gas mixtures. The new gas mixture is comprised of equal parts argon and ethane gas and having approximately 0.25% isopropyl alcohol vapor.

REFERENCES:
patent: 2654041 (1953-09-01), McCurdy et al.
patent: 2712088 (1955-06-01), Whitman
patent: 2715195 (1955-08-01), Friedman
patent: 2936388 (1960-05-01), Chubb et al.
Atac, "Breakdown Processes in Wire Chambers, Prevention and Rate Capability", IEEE Trans. Nucl. Sci., 31(1), Feb. 1984, pp. 99-106.
Atac et al., "Bi-Dimensional Drift Chambers at Fermilab", Nuc. Instru. and Methods, 156, pp. 163-168, 1978.
Atac et al., "Measurements of Drift Velocities and Lorentz Angles at 15 kG", Nucl. Instru. and Methods in Phys. Research, A249, 1986, pp. 265-276.

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