---
title: "DLSITT1092 - Double Crystal Monochromator for Beamline K04 for Diamond Light Source"
ocid: "ocds-h6vhtk-079261"
canonical_url: "https://d3tenders.com/contract/?ocid=ocds-h6vhtk-079261"
markdown_url: "https://d3tenders.com/contract/ocds-h6vhtk-079261.md"
json_url: "https://d3tenders.com/contract/ocds-h6vhtk-079261.json"
source: "Find A Tender Service"
current_stage: "Tender"
buyer: "Diamond Light Source Ltd"
published: "2026-10-28"
---

# DLSITT1092 - Double Crystal Monochromator for Beamline K04 for Diamond Light Source

Buyer: Diamond Light Source Ltd  
Current stage: Tender  
OCID: ocds-h6vhtk-079261

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## Summary

Diamond Light Source Limited is procuring a double-crystal monochromator for its K04 beamline at the Harwell Science and Innovation Campus in Didcot, Oxfordshire. The equipment is for an ultra-high-throughput macromolecular crystallography beamline supporting biological sample analysis and the XChem facility’s early-stage drug discovery work. The required system includes a horizontally deflecting, asymmetrically cut monochromator, three crystal sets, interfaces with the cooling system, vacuum equipment, crystal support and manipulation, and connections to beamline services. The scope covers design, manufacture, testing, delivery, installation and commissioning, with development in collaboration with Diamond’s engineers. This is specialist scientific instrumentation procurement, classified as X-ray devices (CPV 33111000).

The buyer invited offers through an open procedure. The procurement comprises one lot and has an estimated value of £321,000 excluding VAT (£385,200 including VAT). The submission deadline was 27 November 2026 at 12:00 UTC, and the stated end of the award period was 9 December 2026. The contract period is scheduled from 4 January 2027 to 4 July 2028. Bids could be submitted electronically in English. Evaluation assigns 40% to price, 25% to technical quality, 25% to experience and capacity, 5% to commercial considerations and 5% to delivery. The lot is identified as suitable for small and medium-sized enterprises.

This opportunity is suited to suppliers with specialist capability in designing and manufacturing precision X-ray monochromator systems for scientific beamlines. A competitive supplier will need to demonstrate the technical ability to produce a horizontally deflecting, asymmetrically cut double-crystal assembly, provide crystal sets and integrate them with cooling, vacuum, support, manipulation and beamline services. The work also calls for testing, delivery, installation and commissioning, so suppliers need the engineering resources and project coordination to deliver a complete operational system. Experience and capacity carry the same substantial evaluation weight as technical quality, making relevant delivery track record and the ability to work collaboratively with Diamond Light Source engineers important. The single-lot package is marked suitable for SMEs, while the overall requirement remains a specialist, integrated scientific-instrumentation project.

## Notice

Located on the Harwell Science & Innovation Campus in Oxfordshire, Diamond Light Source (DLS) is a leading-edge facility for science, engineering and innovation. DLS 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 co-ordinated 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 K04 beamline will be an ultra-high throughput Macromolecular Crystallography beamline optimised for the study of biological samples (fragment screening) to support the XChem facility in early-stage lead drug discovery. K04 will greatly increase DLS's capacity to carry out XChem experiments by up to 20x, accelerating drug discovery timelines and related research for both the academic community and industrial customers. The monochromator system shall include the VACCS cooling system (Vacuum Aspirated Cryo Cooling System) and three crystal sets. This full system will be developed in collaboration with engineers at DLS. The minimum scope of the contract is the design, manufacture, test, delivery, installation and commissioning of: * A horizontally deflecting, asymmetric cut, double crystal monochromator (DCM) * The crystal sets and interfaces with DLS-designed cooling system(s) * Vacuum system in line with DLS Vacuum requirements * Crystal support and manipulation system * Interfacing with beamline services. See specification for further details.

## Key Details

| Field | Value |
| --- | --- |
| Publication source | Find A Tender Service |
| Latest notice | https://www.find-tender.service.gov.uk/Notice/102054-2026 |
| Notice type | UK4 - Tender Notice |
| Procurement type | Standard |
| Procurement category | Goods |
| Procurement method | Open |
| Procurement method details | Open procedure |
| Tender suitability | SME |
| Awardee scale | Not specified |
| All stages | Tender |

## Dates

| Field | Value |
| --- | --- |
| Publication date | 28 Oct 2026 |
| Submission deadline | 27 Nov 2026 |
| Future notice date | Not specified |
| Award date | Not specified |
| Contract period | 4 Jan 2027 - 4 Jul 2028 |
| Recurrence | Not specified |

## Values

| Field | Value |
| --- | --- |
| Tender value | £321,000 |
| Lots value | £321,000 |
| Awards value | Not specified |
| Contracts value | Not specified |

## Status

| Field | Value |
| --- | --- |
| Tender status | Active |
| Lots status | Active |
| Awards status | Not specified |
| Contracts status | Not specified |

## Buyer

| Field | Value |
| --- | --- |
| Main buyer | Diamond Light Source Ltd |
| Locality | DIDCOT |
| Postcode area | Oxford |
| Postcode | OX11 0DE |
| Country | England |
| ITL 1 | TLJ South East (England) |
| ITL 2 | TLJ1 Berkshire, Buckinghamshire and Oxfordshire |
| ITL 3 | TLJ14 Oxfordshire CC |
| Local authority | Vale of White Horse |
| Electoral ward | Blewbury & Harwell |
| Westminster constituency | Didcot and Wantage |
| Delivery location | TLJ14 Oxfordshire CC |

## CPV Codes

### Divisions

- 33 - Medical equipments, pharmaceuticals and personal care products

### Codes

- 33111000 - X-ray devices

## Release History

- 28 Oct 2026 at 13:02 - Tender - UK4 - Tender Notice - https://www.find-tender.service.gov.uk/Notice/102054-2026

## Documents

- https://www.find-tender.service.gov.uk/Notice/102054-2026
  28th October 2026 - Tender notice on Find a Tender
- https://tenders.diamond.ac.uk
  Visit our web page: https://tenders.diamond.ac.uk 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.

## Notice URLs

- https://diamondtenders@diamond.ac.uk
- https://www.legislation.gov.uk/ukpga/2023/54/contents

## Provenance

This Markdown file is an alternate public rendering of the D3 Tenders contract record. The canonical page is https://d3tenders.com/contract/?ocid=ocds-h6vhtk-079261. The underlying structured data is available as OCDS JSON at https://d3tenders.com/contract/ocds-h6vhtk-079261.json.