---
title: "9002631 - Supply of a Fizeau Interferometer for Diamond Light Source"
ocid: "ocds-h6vhtk-058a87"
canonical_url: "https://d3tenders.com/contract/?ocid=ocds-h6vhtk-058a87"
markdown_url: "https://d3tenders.com/contract/ocds-h6vhtk-058a87.md"
json_url: "https://d3tenders.com/contract/ocds-h6vhtk-058a87.json"
source: "Find A Tender Service"
current_stage: "Award"
buyer: "DIAMOND LIGHT SOURCE LIMITED"
published: "2025-10-17"
---

# 9002631 - Supply of a Fizeau Interferometer for Diamond Light Source

Buyer: DIAMOND LIGHT SOURCE LIMITED  
Current stage: Award  
OCID: ocds-h6vhtk-058a87

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## Summary

Diamond Light Source Limited, operating from the Harwell Science and Innovation Campus in Didcot, Oxfordshire, recently completed a public procurement process for the "Supply of a Fizeau Interferometer." This procurement falls under the industry category of specialist optical instruments and was conducted through an open procedure. The contract, which was completed on 15th October 2025, involved the supply, delivery, installation, and commissioning of a Fizeau laser interferometer to measure the surface quality of X-ray optics at the Optics Metrology Lab. The contract, valued at GBP 267,021.60 gross, spans from October 2025 to March 2026, positioning the buyer, a public authority central government body, at the forefront of scientific innovation improvements under its Diamond-II programme.

This procurement presents significant opportunities for growth within businesses providing precision measuring instruments, particularly those specialising in optics. The open procurement method could benefit small and medium-sized enterprises (SMEs) that can meet the technical quality and experience criteria required for high-precision measurement tools used in scientific research. Suppliers like Lambda Photometrics Limited, characterised as an SME, exemplify the potential for aligning with cutting-edge scientific facilities to enhance their business portfolio in the optical instruments sector. Companies with expertise in advanced optical production technologies, such as ion beam figuring and elastic emission machining, are well-suited to engage in such contracts, promoting business growth and innovation.

## Notice

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 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 scope of this contract is to Supply, deliver, install and commission a Fizeau laser interferometer, subject to the performance specification. The specification details the requirements for a Fizeau interferometer to accurately measure the surface quality of Xray optics for Diamond's beamlines in the Optics Metrology Lab (OML). The Optics & Metrology group at Diamond requires a Fizeau interferometer with a ~ 150 mm diameter exit laser beam to measure the slope and figure error of synchrotron X-ray mirrors and crystals. Such optics are manufactured from single-crystal silicon, often with a metallic coating to enhance X-ray reflectivity. Advances in optical production technology, including ion beam figuring and elastic emission machining, mean that it is now possible to produce X-ray optics with figure errors less than 1 nm rms. To accurately characterise such optics, a measurement tool is required with an accuracy and repeatability.

## Key Details

| Field | Value |
| --- | --- |
| Publication source | Find A Tender Service |
| Latest notice | https://www.find-tender.service.gov.uk/Notice/066313-2025 |
| Notice type | UK7 - Contract Details Notice |
| Procurement type | Standard |
| Procurement category | Goods |
| Procurement method | Open |
| Procurement method details | Open procedure |
| Tender suitability | SME |
| Awardee scale | SME |
| All stages | Tender, Award |

## Dates

| Field | Value |
| --- | --- |
| Publication date | 17 Oct 2025 |
| Submission deadline | 18 Sep 2025 |
| Future notice date | Not specified |
| Award date | 28 Sep 2025 |
| Contract period | 14 Oct 2025 - 30 Mar 2026 |
| Recurrence | Not specified |

## Values

| Field | Value |
| --- | --- |
| Tender value | £270,000 |
| Lots value | £270,000 |
| Awards value | £213,500 |
| Contracts value | £222,518 |

## Status

| Field | Value |
| --- | --- |
| Tender status | Complete |
| Lots status | Complete |
| Awards status | Active |
| Contracts status | Active |

## Buyer

| Field | Value |
| --- | --- |
| Main buyer | DIAMOND LIGHT SOURCE LIMITED |
| Locality | DIDCOT |
| Post town | 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 |

## Supplier

| Field | Value |
| --- | --- |
| Number of suppliers | 1 |
| Supplier names | LAMBDA PHOTOMETRICS |

## CPV Codes

### Divisions

- 38 - Laboratory, optical and precision equipments (excl. glasses)

### Codes

- 38636000 - Specialist optical instruments

## Release History

- 17 Oct 2025 at 12:19 - Award - UK7 - Contract Details Notice - https://www.find-tender.service.gov.uk/Notice/066313-2025
- 29 Sep 2025 at 10:20 - Award - UK6 - Contract Award Notice - https://www.find-tender.service.gov.uk/Notice/060420-2025
- 19 Aug 2025 at 12:39 - Tender - UK4 - Tender Notice - https://www.find-tender.service.gov.uk/Notice/049834-2025

## Documents

- https://www.find-tender.service.gov.uk/Notice/066313-2025
  17th October 2025 - Contract details notice on Find a Tender
- https://www.find-tender.service.gov.uk/Notice/060420-2025
  29th September 2025 - Contract award notice on Find a Tender
- https://www.find-tender.service.gov.uk/Notice/049834-2025
  19th August 2025 - Tender notice on Find a Tender
- https://Tenders.diamond.ac.uk
  Visit our web page: https://tenders.diamond.ac.uk Here Suppliers are requried to complete a one-off simple registration form. You are then able to login to regiter an interest against the tender and download the Tender Documents.

## Notice URLs

- http://www.lambdaphoto.co.uk
- https://diamondtenders@diamond.ac.uk
- https://tenders.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-058a87. The underlying structured data is available as OCDS JSON at https://d3tenders.com/contract/ocds-h6vhtk-058a87.json.