Gas Mixtures and Pressures for Optimum Output Power of rf-Excited Helium–Neon Gas Lasers at 6328 nm

Abstract A novel turbocompressor test facility has been designed for helium-neon gas mixtures and its specific features are presented. To account for the heat transfer originating from the motor coolant, a surrogate model has been derived. By combining these results with additional numerical ones, a similitude study is conducted quantifying the individual effects and contributions on efficiency of the Reynolds number, tip Mach number and specific heat ratio. Decoupling the effect of the different parameters shows that their respective contribution on efficiency variation is highly correlated to the Reynolds number actual value. The negative contribution of the tip Mach number and the positive effect of Reynolds number can be used to explain the efficiency variation with increasing tip Mach number. Specific heat ratio variation leads to minor changes in polytropic efficiency except at low tip Mach numbers.

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Investigation of output-power instability in a helium–neon laser with a planospherical resonator

Soviet Journal of Quantum Electronics ◽

10.1070/qe1981v011n08abeh008046 ◽

1981 ◽

Vol 11 (8) ◽

pp. 1066-1068

Author(s):

V L Koltun ◽

M V Kravets ◽

V G Leont'ev ◽

V V Lipskiĭ ◽

E Ya Nadol'skiĭ ◽

...

Keyword(s):

Output Power ◽

Neon Laser ◽

Helium Neon Laser ◽

Helium Neon ◽

Power Instability

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The w-value and the Fano factor for X-rays in xenon-neon gas mixtures: a Monte Carlo simulation study

1998 IEEE Nuclear Science Symposium Conference Record. 1998 IEEE Nuclear Science Symposium and Medical Imaging Conference (Cat. No.98CH36255) ◽

10.1109/nssmic.1998.775206 ◽

2002 ◽

Author(s):

F.P. Santos ◽

T.H.V.T. Dias ◽

P.J.B.M. Rachinhas ◽

C.A.N. Conde ◽

A.D. Stauffer

Keyword(s):

Monte Carlo Simulation ◽

Monte Carlo ◽

Simulation Study ◽

Fano Factor ◽

Gas Mixtures ◽

X Rays ◽

Monte Carlo Simulation Study ◽

Neon Gas

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Laser phototherapy

Kazan medical journal ◽

10.17816/kazmj84140 ◽

1981 ◽

Vol 62 (5) ◽

pp. 59-62

Author(s):

U. Y. Bogdanovich

Keyword(s):

Carbon Dioxide ◽

Output Power ◽

Carbon Dioxide Laser ◽

Bone Fractures ◽

The Body ◽

Laser Phototherapy ◽

Healing Wounds ◽

Helium Neon

For the purpose of laser phototherapy, helium-neon lasers with a wavelength of 632.8 nm and an output power of 15-25 mW are most often used today. For the treatment of patients with long-term healing wounds, trophic ulcers and bone fractures, the "Clinic" device was made on the basis of a carbon dioxide laser with a wavelength of 10.6 m, in which two LG-23 generators are used, which makes it possible to simultaneously irradiate two affected areas of the body or two sick.

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