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Transmission Line Vacuum Barrier Windows

Category: Scientific Instruments
Small Business Set-Aside: No
Estimated Value: ~$300K
NAICS Code: 334516
Expected Issue Date: September 2022
Expected Award Date: October 2022
Contact Name: Justin Price
Contact Email:

The Material-Plasma Exposure eXperiment (MPEX), a superconducting magnet, steady-state device, is being constructed at Oak Ridge National Laboratory (ORNL), going forward referred to as “the Company,” to address the harsh conditions inside a fusion reactor. This device, as designed, will have the unique feature of conducting accelerated lifetime tests of plasma-facing components, including those that have experienced neutron damage. MPEX will utilize a new high-intensity plasma source concept based on RF technology. This source concept will allow coverage of all expected plasma conditions in the divertor of a future fusion reactor, including very high densities. It will be able to study erosion and redeposition in correct geometries with relevant electric and magnetic fields in front of the target.

The Electron Cyclotron Heating (ECH) system is one of three plasma production and heating systems on MPEX. It consists of microwave source, transmission line, and a launcher that injects the microwaves into the plasma. The ECH system is the primary system to heat electrons in the plasma. The transmission is used to transmit the microwaves between the source and launcher, and since it requires its own private vacuum, a barrier window is required.