Scope
Reference
DLSITT1069
Description
Located on the Harwell Science and Innovation Campus in Oxfordshire, Diamond Light Source (DLS) is a leading-edge facility for science, engineering and innovation. Diamond allows researchers from academia and industry to investigate the structure and behaviour of the world around us at the atomic and molecular level.
To continue delivering the world changing science that Diamond enables, the facility is being upgraded to Diamond-II, a coordinated programme of development that combines a major machine upgrade with new instruments and complementary improvements to optics, detectors, sample environment and delivery capabilities, and computing, as well as integrated and correlative methods. This will be transformative in speed and spatial resolution and will offer users streamlined access to enhanced instruments for life and physical sciences.
The scope of the contract is for the design, supply of materials, manufacture, assembly, test and delivery of two White Beam Slit systems (S1 and S2) for the Diamond-II new flagship beamline I17. The WBSs will be used for defining the size and divergence of the beam, controlling the heat load on downstream optics, and providing diagnostic information about the beam. Each system includes the slit blades and their actuators, cooling system, vacuum vessel, support and manual positioning system.
The I17 beamline will be a soft x-ray beamline operating in the energy range from 250 eV to 3.5 keV. The beamline will include a series of optical components to focus the beam at the exit slits to which will provide a secondary source for sample illumination.
The purpose of the white beam slits is to define the size and power of the beam impinging on mirror M1, to define the dimensions of the accepted beam after deflection from M1, and to provide the ability to tune between flux and transverse coherence.
Total value (estimated)
- £200,000 excluding VAT
- £240,000 including VAT
Above the relevant threshold
Contract dates (estimated)
- 18 December 2025 to 15 June 2026
- 5 months, 29 days
Main procurement category
Goods
CPV classifications
- 42900000 - Miscellaneous general and special-purpose machinery
Contract locations
- UKJ14 - Oxfordshire
Participation
Particular suitability
Small and medium-sized enterprises (SME)
Submission
Tender submission deadline
28 November 2025, 12:00pm
Submission address and any special instructions
Please email tender submission to:
https://diamondtenders@diamond.ac.uk
and send a hard copy to:
Diamond Procurement
Diamond House
Diamond Light Source Ltd
Harwell Science and Innovatio Campus
Didcot
Oxon
OX11 0DE
United Kingdom
Tenders may be submitted electronically
Yes
Languages that may be used for submission
English
Award decision date (estimated)
8 December 2025
Award criteria
| Name | Type | Weighting |
|---|---|---|
| Price | Price | 40% |
| Technical Quality | Quality | 25% |
| Experience and Capacity | Quality | 25% |
| Commercial | Quality | 5% |
| Delivery | Quality | 5% |
Other information
Applicable trade agreements
- Government Procurement Agreement (GPA)
Conflicts assessment prepared/revised
Yes
Procedure
Procedure type
Open procedure
Documents
Technical specifications to be met
https://tenders.diamond.ac.uk
Visit our web page:
Here Suppliers are required to complete a one-off simple registration form. You are then able to login to register an interest against the tender and download the Tender Documents.
Contracting authority
DIAMOND LIGHT SOURCE LIMITED
- Companies House: 04375679
- Public Procurement Organisation Number: PNGG-3778-PWBM
Diamond House
Didcot
OX11 0DE
United Kingdom
Email: procurement@diamond.ac.uk
Region: UKJ14 - Oxfordshire
Organisation type: Public authority - central government