APL Nameplate
  • Volume/Page
  • Keyword
  • DOI
  • Citation
  • Advanced
   
 
 
 

Flickr Twitter iResearch App Facebook

BROWSE VOLUMES

Year Range: 
Search Issue | RSS Feeds RSS
Previous Issue Next Issue

15 Aug 2011

Volume 99, Issue 7, Articles (07xxxx)

Issue Cover Spotlight Figure

Appl. Phys. Lett. 99, 073701 (2011); http://dx.doi.org/10.1063/1.3599706 (3 pages)

Miguel A. Santiago-Cordoba, Svetlana V. Boriskina, Frank Vollmer, and Melik C. Demirel
Enlarge Image | Read More
Return to All Sections
back to top
RSS Feeds
Author Select

Direct measurement of the impulse in a magnetic thrust chamber system for laser fusion rocket

Akihiro Maeno, Naoji Yamamoto, Hideki Nakashima, Shinsuke Fujioka, Tomoyuki Johzaki, Yoshitaka Mori, and Atsushi Sunahara

Appl. Phys. Lett. 99, 071501 (2011); http://dx.doi.org/10.1063/1.3626600 (3 pages)

Online Publication Date: 15 August 2011

Full Text: Read Online (HTML) | Download PDF

Show Abstract
An experiment is conducted to measure an impulse for demonstrating a magnetic thrust chamber system for laser fusion rocket. The impulse is produced by the interaction between plasma and magnetic field. In the experiment, the system consists of plasma and neodymium permanent magnets. The plasma is created by a single-beam laser aiming at a polystyrene spherical target. The impulse is 1.5 to 2.2 μNs by means of a pendulum thrust stand, when the laser energy is 0.7 J. Without magnetic field, the measured impulse is found to be zero. These results indicate that the system for generating impulse is working.
Show PACS
42.62.Eh Metrological applications; optical frequency synthesizers for precision spectroscopy
52.50.Jm Plasma production and heating by laser beams (laser-foil, laser-cluster, etc.)

Acceleration of a solid-density plasma projectile to ultrahigh velocities by a short-pulse ultraviolet laser

J. Badziak and S. Jabłoński

Appl. Phys. Lett. 99, 071502 (2011); http://dx.doi.org/10.1063/1.3628243 (3 pages) | Cited 4 times

Online Publication Date: 19 August 2011

Full Text: Read Online (HTML) | Download PDF

Show Abstract
It is shown by means of particle-in-cell simulations that a high-fluence (≥1 GJ/cm2) solid-density plasma projectile can be accelerated up to sub-relativistic velocities by radiation pressure of an ultraviolet (UV) picosecond laser pulse of moderate values of dimensionless laser amplitude a0 ∼ 10. The efficiency of acceleration by the UV laser is significantly higher than in the case of long-wavelength (λ ∼ 1 μm) driver of a comparable value of a0, and the motion of the projectile is fairly well described by the “Light Sail” acceleration model.
Show PACS
52.38.Kd Laser-plasma acceleration of electrons and ions
52.25.Fi Transport properties
52.27.Ny Relativistic plasmas
52.65.Rr Particle-in-cell method
Return to All Sections
Close

Google Calendar

ADVERTISEMENT

Go to AIP Home   © AIP Publishing LLC
close