Performance improvements with advanced design foils in high-current electron beam diodes

Author

Shurter, R. ; Coogan, J. ; Jones, M. ; Oona, H. ; Rose, E. ; Sadler, C. ; Thomas, V.

Author_Institution

Los Alamos Nat. Labs., NM, USA

Volume

19

Issue

5

fYear

1991

fDate

10/1/1991 12:00:00 AM

Firstpage

846

Lastpage

849

Abstract

A design for the vacuum/pressure barrier of an electron-beam diode ready to be fielded on a large krypton-fluoride excimer laser is described. The barrier is a composite foil, fabricated from carbon fibers, Kapton-membrane, epoxy, and copper foil. This composite foil has advantages over more traditional metal foils, exhibiting particularly high tensile strength and a high modulus of elasticity. Other important properties of these composites for use in KrF excimer laser applications include: high electron transmission with low loss to scattering, chemical compatibility with fluorine, low porosity, and low reflectivity in the ultraviolet. The mechanical properties of the composite foil allow the design of support structures (hibachis) which incorporate larger openings than are possible with metal foils with similar electron transmission characteristics

Keywords

beam handling equipment; diodes; electron beams; C fibre; Cu foil; F; Kapton-membrane; KrF excimer laser; UV; advanced design foils; chemical compatibility; composite foil; electron transmission; epoxy; hibachis; high-current electron beam diodes; loss; modulus of elasticity; porosity; reflectivity; scattering; support structures; tensile strength; vacuum pressure barrier; Chemical lasers; Copper; Diodes; Elasticity; Electrons; Fiber lasers; Laser applications; Optical design; Propagation losses; Scattering;

fLanguage

English

Journal_Title

Plasma Science, IEEE Transactions on

Publisher

ieee

ISSN

0093-3813

Type

jour

DOI

10.1109/27.108422

Filename

108422