Status report on the development of large bore flashlamps for the National Ignition Facility

Author

Zapata, L. ; Erlandson, A.

Author_Institution

Lawrence Livermore Nat. Lab., CA, USA

fYear

1996

fDate

2-7 June 1996

Firstpage

438

Abstract

Summary form only given. We present the results of lifetime and performance measurements made on 4.3 cm bore, 180-cm arc length flashlamps of the size and type we expect to use in the NIF. These flashlamps had 2.5-mm-thick cerium-doped quartz envelopes, electrically insulated bases for mounting, and cathodes doped with low work-function materials to reduce sputtering. We review the results of radiant efficiency and relative Nd-pumping efficiency measurements made with 360- and 500-/spl mu/m pulse lengths and with pulse energies up to 30% of the single-shot explosion energy.

Keywords

arcs (electric); electrodes; flash lamps; fusion reactor ignition; life testing; optical pumping; plasma diagnostics; /spl mu/m pulse lengths; 180 cm; 2.5 mm; 360 mus; 4.3 cm; 500 mus; NIF; National Ignition Facility; Nd; arc length flashlamps; cathodes; cerium-doped quartz envelopes; electrically insulated bases; fusion reactor ignition; large bore flashlamps; laser plasma; lifetime measurements; low work-function materials; mounting; performance measurements; pulse energies; radiant efficiency; relative Nd-pumping efficiency measurements; single-shot explosion energy; sputtering; Boring; Ignition; L-band; Laser excitation; Optical pulse shaping; Plasma x-ray sources; Pump lasers; Shape; X-ray imaging; X-ray lasers;

fLanguage

English

Publisher

ieee

Conference_Titel

Lasers and Electro-Optics, 1996. CLEO '96., Summaries of papers presented at the Conference on

Conference_Location

Anaheim, CA, USA

Print_ISBN

1-55752-443-2

Type

conf

Filename

864893