gas focusing


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gas focusing

[′gas ‚fō·kəs·iŋ]
(electronics)
A method of concentrating an electron beam by utilizing the residual gas in a tube; beam electrons ionize the gas molecules, forming a core of positive ions along the path of the beam which attracts beam electrons and thereby makes the beam more compact. Also known as ionic focusing.
References in periodicals archive ?
Organized by Abu Dhabi National Oil Company (Adnoc), the event, is gathering steam with CEOs and oil and gas industry leaders all joining to present key addresses on prospects and pitfalls for the Middle East oil and gas focusing on the low oil price environment and its impact.
For example, Saint Joseph University has developed a master's program in oil and gas focusing on exploration, production and management, while the American University of Beirut has expanded several existing programs such as petroleum geology and petroleum engineering.