In-Vessel Mirrors for the MAST-U EBW System
key details
| Value | £1 |
|---|---|
| Status | planned |
| Category (CPV) | 38622000 +3 more |
| Region | South East |
| OCID | ocds-h6vhtk-030170 |
description
UKAEA is installing an Electron Bernstein Wave (EBW) system on MAST-U, which aims at injecting two dual-frequency (28GHz and 34.8GHz) microwave beams each of up to 900kW and pulse duration of 4.5s.
There are eight 1 OFF in-vessel copper-coated graphite mirrors. The primary function of the in-vessel mirrors is to redirect the microwaves, produced by the gyrotron, and direct these into the plasma.
The main microwave mirror face has a curved profile, providing focusing of the beam. The curved profile is defined using an ellipsoid shape.
These mirror faces absorb a small percentage of the microwaves. These absorbed microwaves act as a heat flux on the mirror face in a gaussian distribution, peaking at 750kW/m2. A uniform radiative plasma load of 210kW/m2 also acts on all faces excluding the mirror face.
notice history
2 notices published against this procurement.
| Published | Type | Regime | Notice |
|---|---|---|---|
| 15 Dec 2021 | Prior information notice (F01) | Earlier regulations | 031225-2021 |
| 2 Feb 2022 | Corrigendum (F14) | Earlier regulations | 002938-2022 |
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source
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