Studies of iodine dissociation in the chemical oxygen-iodine laser

V. Rybalkin; A. Katz; K. Waichman; D. Vingurt; Z. Dahan; B. D. Barmashenko; S. Rosenwaks

doi:10.1117/12.737166

Studies of iodine dissociation in the chemical oxygen-iodine laser

V. Rybalkin, A. Katz, K. Waichman, D. Vingurt, Z. Dahan, B. D. Barmashenko, S. Rosenwaks

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

Abstract

The dissociation of I₂ molecules at the optical axis of a supersonic chemical oxygen-iodine laser (COIL) was studied experimentally as a function of I₂ flow rate. The measurements revealed that the number of consumed O₂(¹Δ) molecules per dissociated I ₂ molecule depends on the experimental conditions: it is 4.2 ±0.4 for typical conditions and I₂ densities applied for the operation of the COIL, but increases at lower I₂ densities. In addition, a new method for dissociating I₂ prior to its mixing with O₂(¹Δ) and thus reducing the loss of O ₂(¹Δ) is reported. The method is based on applying corona/glow electrical discharge in the transonic section of the secondary flow in the COIL supersonic nozzle. 1.7% of I₂ is dissociated by the discharge resulting in 70% power enhancement at rather high I₂/O ₂ ratio, 1.6%, close to the optimal value (∼ 2.5%) for operation of COILs with supersonic mixing.

Original language	English
Title of host publication	XVI International Symposium on Gas Flow, Chemical Lasers, and High-Power Lasers
DOIs	https://doi.org/10.1117/12.737166
State	Published - 1 Nov 2007
Event	XVI International Symposium on Gas Flow, Chemical Lasers, and High-Power Lasers - Gmunden, Austria Duration: 4 Sep 2006 → 8 Sep 2006

Publication series

Name	Proceedings of SPIE - The International Society for Optical Engineering
Volume	6346 PART 1
ISSN (Print)	0277-786X

Conference

Conference	XVI International Symposium on Gas Flow, Chemical Lasers, and High-Power Lasers
Country/Territory	Austria
City	Gmunden
Period	4/09/06 → 8/09/06

Keywords

Chemical lasers
Iodine
Oxygen
Power lasers

ASJC Scopus subject areas

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

Access to Document

10.1117/12.737166

Cite this

Rybalkin, V., Katz, A., Waichman, K., Vingurt, D., Dahan, Z., Barmashenko, B. D., & Rosenwaks, S. (2007). Studies of iodine dissociation in the chemical oxygen-iodine laser. In XVI International Symposium on Gas Flow, Chemical Lasers, and High-Power Lasers Article 63460A (Proceedings of SPIE - The International Society for Optical Engineering; Vol. 6346 PART 1). https://doi.org/10.1117/12.737166

@inproceedings{2cad10d02424413396455902d8c8ebd6,

title = "Studies of iodine dissociation in the chemical oxygen-iodine laser",

abstract = "The dissociation of I2 molecules at the optical axis of a supersonic chemical oxygen-iodine laser (COIL) was studied experimentally as a function of I2 flow rate. The measurements revealed that the number of consumed O2(1Δ) molecules per dissociated I 2 molecule depends on the experimental conditions: it is 4.2 ±0.4 for typical conditions and I2 densities applied for the operation of the COIL, but increases at lower I2 densities. In addition, a new method for dissociating I2 prior to its mixing with O2(1Δ) and thus reducing the loss of O 2(1Δ) is reported. The method is based on applying corona/glow electrical discharge in the transonic section of the secondary flow in the COIL supersonic nozzle. 1.7% of I2 is dissociated by the discharge resulting in 70% power enhancement at rather high I2/O 2 ratio, 1.6%, close to the optimal value (∼ 2.5%) for operation of COILs with supersonic mixing.",

keywords = "Chemical lasers, Iodine, Oxygen, Power lasers",

author = "V. Rybalkin and A. Katz and K. Waichman and D. Vingurt and Z. Dahan and Barmashenko, {B. D.} and S. Rosenwaks",

year = "2007",

month = nov,

day = "1",

doi = "10.1117/12.737166",

language = "English",

isbn = "0819464309",

series = "Proceedings of SPIE - The International Society for Optical Engineering",

booktitle = "XVI International Symposium on Gas Flow, Chemical Lasers, and High-Power Lasers",

note = "XVI International Symposium on Gas Flow, Chemical Lasers, and High-Power Lasers ; Conference date: 04-09-2006 Through 08-09-2006",

}

Rybalkin, V, Katz, A, Waichman, K, Vingurt, D, Dahan, Z, Barmashenko, BD & Rosenwaks, S 2007, Studies of iodine dissociation in the chemical oxygen-iodine laser. in XVI International Symposium on Gas Flow, Chemical Lasers, and High-Power Lasers., 63460A, Proceedings of SPIE - The International Society for Optical Engineering, vol. 6346 PART 1, XVI International Symposium on Gas Flow, Chemical Lasers, and High-Power Lasers, Gmunden, Austria, 4/09/06. https://doi.org/10.1117/12.737166

Studies of iodine dissociation in the chemical oxygen-iodine laser. / Rybalkin, V.; Katz, A.; Waichman, K. et al.
XVI International Symposium on Gas Flow, Chemical Lasers, and High-Power Lasers. 2007. 63460A (Proceedings of SPIE - The International Society for Optical Engineering; Vol. 6346 PART 1).

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

TY - GEN

T1 - Studies of iodine dissociation in the chemical oxygen-iodine laser

AU - Rybalkin, V.

AU - Katz, A.

AU - Waichman, K.

AU - Vingurt, D.

AU - Dahan, Z.

AU - Barmashenko, B. D.

AU - Rosenwaks, S.

PY - 2007/11/1

Y1 - 2007/11/1

N2 - The dissociation of I2 molecules at the optical axis of a supersonic chemical oxygen-iodine laser (COIL) was studied experimentally as a function of I2 flow rate. The measurements revealed that the number of consumed O2(1Δ) molecules per dissociated I 2 molecule depends on the experimental conditions: it is 4.2 ±0.4 for typical conditions and I2 densities applied for the operation of the COIL, but increases at lower I2 densities. In addition, a new method for dissociating I2 prior to its mixing with O2(1Δ) and thus reducing the loss of O 2(1Δ) is reported. The method is based on applying corona/glow electrical discharge in the transonic section of the secondary flow in the COIL supersonic nozzle. 1.7% of I2 is dissociated by the discharge resulting in 70% power enhancement at rather high I2/O 2 ratio, 1.6%, close to the optimal value (∼ 2.5%) for operation of COILs with supersonic mixing.

AB - The dissociation of I2 molecules at the optical axis of a supersonic chemical oxygen-iodine laser (COIL) was studied experimentally as a function of I2 flow rate. The measurements revealed that the number of consumed O2(1Δ) molecules per dissociated I 2 molecule depends on the experimental conditions: it is 4.2 ±0.4 for typical conditions and I2 densities applied for the operation of the COIL, but increases at lower I2 densities. In addition, a new method for dissociating I2 prior to its mixing with O2(1Δ) and thus reducing the loss of O 2(1Δ) is reported. The method is based on applying corona/glow electrical discharge in the transonic section of the secondary flow in the COIL supersonic nozzle. 1.7% of I2 is dissociated by the discharge resulting in 70% power enhancement at rather high I2/O 2 ratio, 1.6%, close to the optimal value (∼ 2.5%) for operation of COILs with supersonic mixing.

KW - Chemical lasers

KW - Iodine

KW - Oxygen

KW - Power lasers

UR - http://www.scopus.com/inward/record.url?scp=35549013679&partnerID=8YFLogxK

U2 - 10.1117/12.737166

DO - 10.1117/12.737166

M3 - Conference contribution

AN - SCOPUS:35549013679

SN - 0819464309

SN - 9780819464309

T3 - Proceedings of SPIE - The International Society for Optical Engineering

BT - XVI International Symposium on Gas Flow, Chemical Lasers, and High-Power Lasers

T2 - XVI International Symposium on Gas Flow, Chemical Lasers, and High-Power Lasers

Y2 - 4 September 2006 through 8 September 2006

ER -

Studies of iodine dissociation in the chemical oxygen-iodine laser

Abstract

Publication series

Conference

Keywords

ASJC Scopus subject areas

Access to Document

Other files and links

Fingerprint

Cite this