Characterization of neutral density profile in a wide range of pressure of cylindrical pulsed gas jets

Victor Malka (1) , C. Coulaud , J. P. Geindre (1) , V. Lopez , Z. Najmudin (2) , D. Neely (3) , François Amiranoff (1)

1 LULI - Laboratoire pour l'utilisation des lasers intenses
2 Blackett Laboratory
3 RAL - STFC Rutherford Appleton Laboratory

The neutral density profile of cylindrical gas jets is measured with a Mach–Zehnder interferometer under a wide range of backing pressures. The sensitivity of this diagnostic together with the mathematical treatment of the data allows us to measure neutral densities for argon gas as low as 1017cm−3 for a 5 mm diam gas jet.

Domaines: Physique [physics]; Physique [physics]; Optique [physics.optics]; Dynamique des Fluides [physics.flu-dyn]

Victor Malka, C. Coulaud, J. P. Geindre, V. Lopez, Z. Najmudin, et al.. Characterization of neutral density profile in a wide range of pressure of cylindrical pulsed gas jets. Review of Scientific Instruments, 2000, 71 (6), pp.2329. ⟨10.1063/1.1150619⟩. ⟨hal-01165278⟩