UK

Corrigendum

Information

Published

External Reference: 2022-525976

FTS Reference: 2022-002938

Corrigendum

Corrigendum

Notice for changes or additional information

Supplies

Section I: Contracting authority/entity

I.1)

Name and addresses

United Kingdom Atomic Energy Authority
N/A
Culham Science Centre
Abingdon
OX14 3DB
UK
Contact person: Hugo Silva
E-mail: hugo.silva@ukaea.uk
NUTS code:  UKJ14 -  Oxfordshire
Internet address(es):
Main address: http://www.gov.uk/government/organisations/uk-atomic-energy-authority
Address of the buyer profile: https://uk.eu-supply.com/ctm/Company/CompanyInformation/Index/72814

Section II: Object

II.1)

Scope of the procurement

II.1.1)

Title

In-Vessel Mirrors for the MAST-U EBW System
Reference number:  T/HS286/21
II.1.2)

Main CPV code

38622000  -  Mirrors
II.1.3)

Type of contract

Supplies
II.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 VI: Complementary information

VI.6)

Original notice reference

Notice number in the FTS: 2021/S 000-031225

Section VII: Changes

VII.1)

Information to be changed or added

VII.1.2)

Text to be corrected in the original notice

VII.2)

Other additional information

Extended deadline