Scheduled System Maintenance:
On May 6th, single article purchases and IEEE account management will be unavailable from 8:00 AM - 12:00 PM ET (12:00 - 16:00 UTC). We apologize for the inconvenience.
By Topic

Laser Differential Interferometer for Diagnostics of Gas-Puff Z -Pinch

Sign In

Cookies must be enabled to login.After enabling cookies , please use refresh or reload or ctrl+f5 on the browser for the login options.

Formats Non-Member Member
$31 $13
Learn how you can qualify for the best price for this item!
Become an IEEE Member or Subscribe to
IEEE Xplore for exclusive pricing!
close button

puzzle piece

IEEE membership options for an individual and IEEE Xplore subscriptions for an organization offer the most affordable access to essential journal articles, conference papers, standards, eBooks, and eLearning courses.

Learn more about:

IEEE membership

IEEE Xplore subscriptions

5 Author(s)
Chen, Guanghua ; Inst. of Fluid Phys., China Acad. of Eng. Phys., Mianyang, China ; Shouxian Liu ; Xianbing Huang ; Zeren Li
more authors

Laser shearing interferometers (LSIs) are suitable for measuring the plasma-density profile on the condition that the spatial-frequency shift of the interference fringes induced by the plasma is less than the spatial-carrier frequency of the fringes. When it is applied to the diagnostics of plasmas with very large density gradient and Laplacian, such as a plasma shell produced by Z-pinch, the fringe pattern obtained in the experiment seldom meets the requirement. A new type of laser differential interferometer has been developed on the basis of a cyclic LSI. By placing a ring interferometer between the two lenses of a 4-f imaging system, the interferometer has the ability to change the ratio of frequency shift to carrier frequency arbitrarily, and thus, it is applicable to the diagnostics of plasma with large density gradient and Laplacian. The principle of the 4-f differential interferometer was illustrated. Gas-puff experiments were conducted on a Yang accelerator. The high-definition interferograms of the imploding plasma shell were obtained. The electron-density profiles and the plasma-shell shape were calculated from the interferograms.

Published in:

Plasma Science, IEEE Transactions on  (Volume:37 ,  Issue: 12 )