Section one: Contracting authority/entity
one.1) Name and addresses
United Kingdom Atomic Energy Authority
Culham Science Centre
Abingdon
OX14 3DB
Contact
Hugo Silva
Country
United Kingdom
NUTS code
UKJ14 - Oxfordshire
National registration number
N/A
Internet address(es)
Main address
http://www.gov.uk/government/organisations/uk-atomic-energy-authority
Buyer's address
https://uk.eu-supply.com/ctm/Company/CompanyInformation/Index/72814
Section two: Object
two.1) Scope of the procurement
two.1.1) Title
In-Vessel Mirrors for the MAST-U EBW System
Reference number
T/HS286/21
two.1.2) Main CPV code
- 38622000 - Mirrors
two.1.3) Type of contract
Supplies
two.1.4) Short 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.
Section six. Complementary information
six.6) Original notice reference
Notice number: 2021/S 000-031225
Section seven. Changes
seven.1) Information to be changed or added
seven.2) Other additional information
Extended deadline