Management of unconverted light for the National Ignition Facility target chamber

Pamela K. Whitman; Alan K. Burnham; Mary A. Norton; Francois Y. Genin; J. M. Scott; Wilthea J. Hibbard; K. Bletzer; Andrew T. Anderson; Sham N. Dixit

doi:10.1117/12.354186

23 July 1999 Management of unconverted light for the National Ignition Facility target chamber

Pamela K. Whitman, Alan K. Burnham, Mary A. Norton, Francois Y. Genin, J. M. Scott, Wilthea J. Hibbard, K. Bletzer, Andrew T. Anderson, Sham N. Dixit

Author Affiliations +

Proceedings Volume 3492, Third International Conference on Solid State Lasers for Application to Inertial Confinement Fusion; (1999) https://doi.org/10.1117/12.354186
Event: Third International Conference on Solid State Lasers for Application to Inertial Confinement Fusion, 1998, Monterey, CA, United States

Abstract

The NIF target chamber beam dumps must survive high x-ray, laser, ion, and shrapnel exposures without excessive generation of vapors or particulate that will contaminate the final optics debris shields, thereby making the debris shields susceptible to subsequent laser damage. The beam dumps also must be compatible with attaining and maintaining the required target chamber vacuum and must not activate significantly under high neutron fluxes. Finally, they must be developed, fabricated, and maintained for a reasonable cost. The primary challenge for the beam dump is to survive up to 20 J/cm² of 1 micrometers light and 1-2 J/cm² of nominally 200-350 eV blackbody temperature x-rays. Additional threats include target shrapnel, and other contamination issues. Designs which have been evaluated include louvered hot-pressed boron carbide or stainless steel panels, in some cases covered with transparent Teflon film, and various combinations of inexpensive low thermal expansion glasses backed by inexpensive absorbing glass.

Citation Download Citation

Pamela K. Whitman, Alan K. Burnham, Mary A. Norton, Francois Y. Genin, J. M. Scott, Wilthea J. Hibbard, K. Bletzer, Andrew T. Anderson, and Sham N. Dixit "Management of unconverted light for the National Ignition Facility target chamber", Proc. SPIE 3492, Third International Conference on Solid State Lasers for Application to Inertial Confinement Fusion, (23 July 1999); https://doi.org/10.1117/12.354186

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available

Members: $17.00

Non-members: $21.00 ADD TO CART

PROCEEDINGS
12 PAGES

DOWNLOAD PAPER SAVE TO MY LIBRARY

GET CITATION

RIGHTS & PERMISSIONS

Get copyright permission Get copyright permission on Copyright Marketplace

KEYWORDS

Glasses

Silica

X-rays

Laser ablation

National Ignition Facility

Contamination

Laser induced damage

Show All Keywords

Keywords/Phrases

Search In:

Publication Years