Topic
Buffer gas
About: Buffer gas is a research topic. Over the lifetime, 3565 publications have been published within this topic receiving 47283 citations.
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TL;DR: In this paper, an efficient supersonic chemical oxygen-iodine laser, energized by a jet-type singlet oxygen generator, operating without primary buffer gas and applying simple nozzle geometry and transonic mixing of iodine and oxygen.
Abstract: We report on an efficient supersonic chemical oxygen-iodine laser, energized by a jet-type singlet oxygen generator, operating without primary buffer gas and applying simple nozzle geometry and transonic mixing of iodine and oxygen. Output power of 177 W with chemical efficiency of 17% was obtained in a 5 cm gain length for Cl2 flow rate of 11 mmol/s. The power is almost unaffected by water vapor in the medium.
23 citations
Patent•
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10 Jun 1987
TL;DR: In this paper, a portable gas removal system for underground gas removal from a low-pressure underground formation is described, where the gas is aspirated from a well with water, the mixture of gas and water are introduced into a receiving chamber where the aspirated gas is stripped and mixed with air and an air-gas mixture is withdrawn having a gas concentration lower than the explosive limit.
Abstract: A portable gas removal system for withdrawing a flammable gas from a low pressure subterranean formation wherein the gas is aspirated from a well with water, the mixture of gas and water are introduced into a receiving chamber where the aspirated gas is stripped and mixed with air and an air-gas mixture is withdrawn having a gas concentration lower than the explosive limit.
23 citations
01 Oct 2008-Nuclear Instruments & Methods in Physics Research Section B-beam Interactions With Materials and Atoms
TL;DR: In this paper, a review of the extraction efficiencies of gas catchers of different volumes, buffer gases, projectile energies and electric fields all show a common decrease as a function of ionization-rate density.
Abstract: The technique of using noble gases to cool energetic beams offers fast extraction times, very little sensitivity to chemical properties of the ions and very low-energy spreads. A variant of this method is based on the selective laser ionization of radioactive species after they have been thermalized in gas as neutral atoms. The laser ion source in Jyvaskyla is used to highlight the importance of buffer gas purity using yttrium, a particularly chemically reactive element. The time distribution profiles obtained on-line illustrate the competing factors that create and destroy the ion of interest during evacuation from the ion guide. A review of the extraction efficiencies of gas catchers of different volumes, buffer gases, projectile energies and electric fields all show a common decrease as a function of ionization-rate density. The reasons for this decline and possible solutions to tolerate higher primary beam intensities are discussed.
23 citations
TL;DR: In this article, the rate constants for the vibration-vibration exchange processes were measured in liquid Kr solution at 118 K and in the gas phase at the same temperature in the presence of an inert buffer gas.
23 citations
TL;DR: In this paper, the total cross sections for excitation transfer between the 6 2P1/2 and 6 2π3/2 levels in cesium, induced by collisions of the second kind between Cesium and inert gas atoms, have been determined.
Abstract: The total cross sections for excitation transfer between the 6 2P1/2 and 6 2P3/2 levels in cesium, induced by collisions of the second kind between cesium and inert gas atoms, have been determined ...
23 citations