A nozzle for high-density supersonic gas jets at elevated temperatures
(2018) In Review of Scientific Instruments 89(11).- Abstract
We present the development of a gas nozzle providing high-density gas at elevated temperatures inside a vacuum environment. Fused silica is used as the nozzle material to allow the placement of the nozzle tip in close proximity to an intense, high-power laser beam, while minimizing the risk of sputtering nozzle tip material into the vacuum chamber. Elevating the gas temperature increases the gas-jet forward velocity, allowing us to replenish the gas volume in the laser-gas interaction region between consecutive laser shots. The nozzle accommodates a 50 μm opening hole from which a supersonic gas jet emerges. Heater wires are used to bring the nozzle temperature up to 730 °C, while a cooling unit ensures that the nozzle mount and the... (More)
We present the development of a gas nozzle providing high-density gas at elevated temperatures inside a vacuum environment. Fused silica is used as the nozzle material to allow the placement of the nozzle tip in close proximity to an intense, high-power laser beam, while minimizing the risk of sputtering nozzle tip material into the vacuum chamber. Elevating the gas temperature increases the gas-jet forward velocity, allowing us to replenish the gas volume in the laser-gas interaction region between consecutive laser shots. The nozzle accommodates a 50 μm opening hole from which a supersonic gas jet emerges. Heater wires are used to bring the nozzle temperature up to 730 °C, while a cooling unit ensures that the nozzle mount and the glued nozzle-to-mount connection is kept at a temperature below 50 °C. The presented nozzle design is used for high-order harmonic generation in hot gases using gas backing pressures of up to 124 bars.
(Less)
- author
- Heyl, C. M. LU ; Schoun, S. B. ; Porat, G. ; Green, H. and Ye, J.
- organization
- publishing date
- 2018
- type
- Contribution to journal
- publication status
- published
- subject
- in
- Review of Scientific Instruments
- volume
- 89
- issue
- 11
- article number
- 113114
- publisher
- American Institute of Physics (AIP)
- external identifiers
-
- scopus:85056844674
- pmid:30501290
- ISSN
- 0034-6748
- DOI
- 10.1063/1.5051586
- language
- English
- LU publication?
- yes
- id
- b08bd7e2-803c-48a3-a840-59d2f797ed67
- date added to LUP
- 2018-11-29 13:27:48
- date last changed
- 2024-04-15 17:45:28
@article{b08bd7e2-803c-48a3-a840-59d2f797ed67,
abstract = {{<p>We present the development of a gas nozzle providing high-density gas at elevated temperatures inside a vacuum environment. Fused silica is used as the nozzle material to allow the placement of the nozzle tip in close proximity to an intense, high-power laser beam, while minimizing the risk of sputtering nozzle tip material into the vacuum chamber. Elevating the gas temperature increases the gas-jet forward velocity, allowing us to replenish the gas volume in the laser-gas interaction region between consecutive laser shots. The nozzle accommodates a 50 μm opening hole from which a supersonic gas jet emerges. Heater wires are used to bring the nozzle temperature up to 730 °C, while a cooling unit ensures that the nozzle mount and the glued nozzle-to-mount connection is kept at a temperature below 50 °C. The presented nozzle design is used for high-order harmonic generation in hot gases using gas backing pressures of up to 124 bars.</p>}},
author = {{Heyl, C. M. and Schoun, S. B. and Porat, G. and Green, H. and Ye, J.}},
issn = {{0034-6748}},
language = {{eng}},
number = {{11}},
publisher = {{American Institute of Physics (AIP)}},
series = {{Review of Scientific Instruments}},
title = {{A nozzle for high-density supersonic gas jets at elevated temperatures}},
url = {{http://dx.doi.org/10.1063/1.5051586}},
doi = {{10.1063/1.5051586}},
volume = {{89}},
year = {{2018}},
}