The Compact, Multiple Barrel High Speed Pellet Injector for the Ignitor Experiment

Author

Migliori, S. ; Frattolillo, A. ; Combs, S.K. ; Baylor, L.R. ; Roveta, G. ; Bombarda, F. ; Foust, R. ; Fehling, D.T. ; McGill, J.M. ; Caughman, J.B.O. ; Thomas, J.C.

Author_Institution

ENEA-CR Frascati

fYear

2005

fDate

Sept. 2005

Firstpage

1

Lastpage

4

Abstract

A four barrel, double stage pellet injector for the Ignitor experiment is under construction in collaboration between the ENEA Laboratory at Frascati and the Oak Ridge National Laboratory. The goal is to reach pellet velocities up to 4 km/s. Innovative concepts at the basis of the injector design considerably reduce the requirements on the expansion volumes necessary to prevent the propulsion gas to reach the plasma chamber. The full four barrels, double stage gun and gas removal system have been built and tested, while the design and construction of the pellet injector vacuum chamber, cryogenic system, gun barrels and pellet diagnostics is underway at ORNL, where the final assembly and testing of the complete system will be carried out

Keywords

cryogenics; fusion reactor design; fusion reactor ignition; plasma diagnostics; vacuum apparatus; ENEA Laboratory; Frascati; Ignitor Experiment; ORNL; Oak Ridge National Laboratory; compact multiple barrel high speed pellet injector; cryogenic system; double stage gun; double stage pellet injector; expansion volumes; final assembly; gas removal system; gun barrels; injector design; pellet diagnostics; pellet velocities; plasma chamber; propulsion gas; testing; vacuum chamber; Chromium; Collaboration; Ignition; Laboratories; Plasma density; Plasma diagnostics; Plasma stability; Plasma temperature; Propulsion; System testing; Ignitor; high speed pellet injector; pellet injector;

fLanguage

English

Publisher

ieee

Conference_Titel

Fusion Engineering 2005, Twenty-First IEEE/NPS Symposium on

Conference_Location

Knoxville, TN

Print_ISBN

0-4244-0150-X

Electronic_ISBN

0-4244-0150-X

Type

conf

DOI

10.1109/FUSION.2005.252921

Filename

4018955