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DLSITT1055 - M1 and M2 Collimating Mirror System for Beamline I20 for Diamond Light Source

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Submission Deadline Has Passed

This tender's submission deadline has passed and is no longer accepting applications. The information below is kept for reference purposes.

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Deadline
Expired
March 09, 2026
Contract Details
Category
Open Procedure
Reference
010766-2026
Value
£600,000
Location
Berkshire, Buckinghamshire and Oxfordshire, United Kingdom
Published
August 16, 2026
CPV Code
Project Timeline

Tender Published

February 06, 2026

Deadline for Questions

March 02, 2026

Submission Deadline

March 09, 2026

Contract Start Date

March 28, 2026

Budget
£600,000
Duration
27 months
Location
Berkshire, Buckinghamshire and Oxfordshire
Type
Open Procedure
60
Quality Score/100
Good

Original Tender Description

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 scope of the contract is for the design, manufacture, assembly, delivery and installation of a pair of cooled, high power mirror systems (M1 and M2) for the I20-Scanning beamline to the performance detailed in the specification document. The minimum scope of the contract: • M1 - upward reflecting, vertical collimating, white beam mirror and mechanics including bender and anti-sag. • M2 - downward reflecting, flat, white beam mirror and mechanics including bender and anti-sag. • Cooling arrangements. • Temperature monitoring for interlocking • Mechanical Interlocking of displacements between the two mirror systems with electronic feedback to protect the over extension of the bellows. • Vacuum vessels. • Support frames. • Interfaces to beamline services. • Installation of the optic in the bender at the DLS Optics Metrology Lab (OML). • Assembly for site acceptance testing at DLS. • Installation and commissioning into the beamline. • Training for Diamond personnel in the operation of the mirrors. Further information can be found in the specification.

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Requirements & Qualifications

24 requirements across 5 categories

Submission (3)
Mandatory (1)
Compliance (2)
Technical (17)
Financial (1)
SUBMISSION REQUIREMENTS3
--Bid must be submitted by the deadline of 2026-03-09T12:00:00+00:00.
--Bid must cover the full scope of design, manufacture, assembly, delivery, and installation of the mirror systems.
--Bid must address the minimum scope items: M1, M2, cooling arrangements, temperature monitoring, mechanical interlocking, vacuum vessels, support frames, beamline interfaces, installation at OML, assembly for site acceptance testing, installation and commissioning, and training.
MANDATORY EXCLUSION GROUNDS1
--(No information provided in the summaries.)
ELIGIBILITY REQUIREMENTS2
--Supplier must register on the Diamond Light Source website.
--Supplier must register on the UK Government's Central Digital Platform.
TECHNICAL CAPABILITY REQUIREMENTS17
--Capability to design cooled, high-power mirror systems (M1 and M2).
--Capability to manufacture cooled, high-power mirror systems (M1 and M2).
--Capability to assemble cooled, high-power mirror systems (M1 and M2).
FINANCIAL REQUIREMENTS1
--(No explicit financial requirements mentioned in the summaries.)

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Documents

3 documents available with AI summaries

OCDS RecordDOC
010766-2026_ocds_record.json

This tender seeks a supplier for the design, manufacture, assembly, delivery, and installation of two cooled, high-power mirror systems (M1 and M2) for the I20-Scanning beamline at Diamond Light Source, including associated mechanics, cooling, vacuum vessels, and commissioning.

OCDS Release PackageDOC
010766-2026_ocds_release.json

This OCDS Release Package provides the official, structured data for a tender seeking a supplier to design, manufacture, install, and commission cooled, high-power mirror systems for the Diamond Light Source's I20-Scanning beamline upgrade.

Official PDF VersionPDF
010766-2026_official.pdf

Diamond Light Source seeks a supplier for the design, manufacture, assembly, delivery, and installation of two cooled, high-power mirror systems (M1 and M2) for its I20-Scanning beamline as part of the Diamond-II upgrade, with an estimated value of £500,000.

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60
Good

Tender Quality Score

This tender presents a highly specialized technical procurement for advanced mirror systems, demonstrating clear technical requirements and good basic information. However, critical omissions such as explicit evaluation criteria, mandatory exclusion grounds, and the lack of e-submission significantly impact its clarity, fairness, and overall quality.

Score Breakdown

Legal Compliance70/100

The tender defines the procedure type and CPV code correctly, and the submission period (31 days) is reasonable. However, the summaries lack explicit information on mandatory exclusion grounds, which are a fundamental legal requirement, and do not specify the governing UK procurement regulations.

Missing mandatory exclusion grounds in summaries
No explicit mention of governing legal framework
Clarity60/100

The technical description of the required mirror systems and their minimum scope is exceptionally clear and detailed. However, the absence of specified evaluation criteria is a major clarity issue for potential bidders. Mandatory exclusion grounds are also not detailed in the summaries.

Missing evaluation criteria
Mandatory exclusion grounds not detailed in summaries
Completeness65/100

Basic information, financial details, timeline, and classification are well-provided. All listed documents are available. Nevertheless, the tender summaries are incomplete regarding crucial elements such as evaluation criteria and mandatory exclusion grounds.

Missing evaluation criteria in summaries
Mandatory exclusion grounds not detailed in summaries
Fairness50/100

The estimated value is disclosed, and the submission period is adequate. However, the complete absence of evaluation criteria makes it impossible for bidders to understand how their proposals will be judged, severely compromising transparency and fairness. The lack of explicit e-submission is also a drawback for equal access.

Missing evaluation criteria
No explicit e-submission support
Practicality60/100

The contract start date and duration are clearly specified. However, the tender explicitly states "No e-submission," which is a significant practical hurdle in modern procurement. A direct document URL is not provided in the summary.

No electronic submission supported
No direct document URL provided in summary
Data Consistency65/100

Most key fields are populated, and dates are logical. However, there is an inconsistency in the estimated value, stated as 600,000.00 EUR in the basic info but £500,000 in one document summary, which are not precisely equivalent. The "Liable Person" field is also empty.

Inconsistent estimated value (EUR vs GBP)
Liable Person field empty
Sustainability30/100

The tender does not explicitly incorporate any green procurement, social, or innovation-focused criteria. While the project itself is innovative, the tender requirements do not solicit or evaluate sustainability aspects from bidders.

No green procurement criteria
No social criteria

Strengths

Clear and detailed technical scope description
Estimated value and contract duration clearly specified
All listed tender documents are available
Well-defined procedure type and CPV code
No disputes or suspensions reported

Concerns

Absence of explicit evaluation criteria
Missing details on mandatory exclusion grounds in summaries
Lack of electronic submission support
Inconsistency in estimated value currency/amount
No integration of sustainability or social criteria

Recommendations

1. Clearly define and publish all evaluation criteria to ensure fairness and transparency.
2. Provide full details on mandatory exclusion grounds within the tender documentation.
3. Implement electronic submission capabilities to streamline the process and enhance accessibility.

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