Modelling of high pressure O2(1Δ) generators for chemical oxygen-iodine lasers

Boris D Barmashenko; Salman Rosenwaks

doi:10.1117/12.144538

Modelling of high pressure O₂(¹Δ) generators for chemical oxygen-iodine lasers

Boris D Barmashenko, Salman Rosenwaks

Department of Physics

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

Abstract

A theoretical model is developed for chemical generators producing O₂(¹Δ) at high pressure. Such generators are especially important for supersonic chemical oxygen-iodine lasers. The model treats different types of generators, e.g., bubble coloumn, film, aerosol and jet generators. The main factor affecting the O₂(¹Δ) yield under high pressure is liquid-phase quenching enhanced by depletion of HO₂^- ions near the gas/liquid interface. Simple analytical expressions are derived for the O₂(¹Δ) yield at the exit of the generator. Output characteristics of different specific generators are calculated and compared with available experimental results. O₂(¹Δ) yield > 0.5 can be achieved for oxygen pressure up to 50 Torr and flowrates of 3 mmol/cm² s. For equal velocities of the gas and the liquid the maximum flux of the energy carried by O₂(¹Δ) for jet or aerosol generators reaches 200 W/cm². It can be increased by increasing the liquid velocity in the generator.

Original language	English
Title of host publication	9th International Symposium on Gas Flow and Chemical Lasers
Publisher	SPIE
Pages	517-520
Number of pages	4
Volume	1810
DOIs	https://doi.org/10.1117/12.144538 https://doi.org/10.1117/12.144538
State	Published - 1993
Event	9th International Symposium on Gas Flow and Chemical Lasers 1992 - Heraklion, Greece Duration: 21 Sep 1992 → 25 Sep 1992

Publication series

Name	Proceedings of SPIE - The International Society for Optical Engineering
Publisher	SPIE
ISSN (Print)	0277-786X

Conference

Conference	9th International Symposium on Gas Flow and Chemical Lasers 1992
Country/Territory	Greece
City	Heraklion
Period	21/09/92 → 25/09/92

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics
Computer Science Applications
Applied Mathematics
Electrical and Electronic Engineering

Access to Document

Cite this

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title = "Modelling of high pressure O2(1Δ) generators for chemical oxygen-iodine lasers",

abstract = "A theoretical model is developed for chemical generators producing O2(1Δ) at high pressure. Such generators are especially important for supersonic chemical oxygen-iodine lasers. The model treats different types of generators, e.g., bubble coloumn, film, aerosol and jet generators. The main factor affecting the O2(1Δ) yield under high pressure is liquid-phase quenching enhanced by depletion of HO2- ions near the gas/liquid interface. Simple analytical expressions are derived for the O2(1Δ) yield at the exit of the generator. Output characteristics of different specific generators are calculated and compared with available experimental results. O2(1Δ) yield > 0.5 can be achieved for oxygen pressure up to 50 Torr and flowrates of 3 mmol/cm2 s. For equal velocities of the gas and the liquid the maximum flux of the energy carried by O2(1Δ) for jet or aerosol generators reaches 200 W/cm2. It can be increased by increasing the liquid velocity in the generator.",

author = "Barmashenko, {Boris D} and Salman Rosenwaks",

note = "Publisher Copyright: {\textcopyright} 1992 Proceedings of SPIE - The International Society for Optical Engineering. All rights reserved.; 9th International Symposium on Gas Flow and Chemical Lasers 1992 ; Conference date: 21-09-1992 Through 25-09-1992",

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doi = "10.1117/12.144538",

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booktitle = "9th International Symposium on Gas Flow and Chemical Lasers",

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Barmashenko, BD & Rosenwaks, S 1993, Modelling of high pressure O₂(¹Δ) generators for chemical oxygen-iodine lasers. in 9th International Symposium on Gas Flow and Chemical Lasers. vol. 1810, Proceedings of SPIE - The International Society for Optical Engineering, SPIE, pp. 517-520, 9th International Symposium on Gas Flow and Chemical Lasers 1992, Heraklion, Greece, 21/09/92. https://doi.org/10.1117/12.144538, https://doi.org/10.1117/12.144538

Modelling of high pressure O₂(¹Δ) generators for chemical oxygen-iodine lasers. / Barmashenko, Boris D ; Rosenwaks, Salman.
9th International Symposium on Gas Flow and Chemical Lasers. Vol. 1810 SPIE, 1993. p. 517-520 (Proceedings of SPIE - The International Society for Optical Engineering).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

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N2 - A theoretical model is developed for chemical generators producing O2(1Δ) at high pressure. Such generators are especially important for supersonic chemical oxygen-iodine lasers. The model treats different types of generators, e.g., bubble coloumn, film, aerosol and jet generators. The main factor affecting the O2(1Δ) yield under high pressure is liquid-phase quenching enhanced by depletion of HO2- ions near the gas/liquid interface. Simple analytical expressions are derived for the O2(1Δ) yield at the exit of the generator. Output characteristics of different specific generators are calculated and compared with available experimental results. O2(1Δ) yield > 0.5 can be achieved for oxygen pressure up to 50 Torr and flowrates of 3 mmol/cm2 s. For equal velocities of the gas and the liquid the maximum flux of the energy carried by O2(1Δ) for jet or aerosol generators reaches 200 W/cm2. It can be increased by increasing the liquid velocity in the generator.

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