What Quantum Detectors does

Quantum Detectors Limited is a UK-based private company founded in 2007 as a technology spin-out from the Science & Technology Facilities Council (STFC) and Diamond Light Source, headquartered at the Rutherford Appleton Laboratory on the Harwell Science and Innovation Campus. The company designs, manufactures, and sells direct electron detectors (DEDs) and X-ray readout systems for transmission electron microscopy (TEM) and synchrotron radiation research, serving national research facilities, university microscopy centers, and synchrotron beamlines worldwide. Core products include the MerlinEM family (standard, RDP, and the next-generation Timepix4-based Merlin T4), MerlinEELS for electron energy loss spectroscopy, the Xspress 3 family of digital pulse processors for synchrotron XRF/EXAFS/XPS, the PandABox beamline timing and control system, the Quantum C100 detector for 100 keV cryo-EM, and the Scan Engine for precision STEM scanning.

Underlying its product portfolio is a strategic technology collaboration with CERN, leveraging the Medipix3 and Timepix3/Timepix4 ASIC families to deliver hybrid pixel detectors that perform direct electron detection without scintillators, hardware-based single-electron counting, and high-speed, radiation-tolerant readout. Quantum Detectors develops the readout electronics, firmware, and acquisition software in-house, and integrates with beamline control systems via EPICS and TANGO, as well as community-standard analysis pipelines such as HyperSpy and pyXem. The technology is compatible with all major TEM brands (Hitachi, JEOL, Thermo Fisher Scientific) and the company holds the largest installed base of direct electron detectors globally, with more than 80 MerlinEM systems and over 100 Xspress 3 installations across multiple continents.

Quantum Detectors operates a hybrid enterprise go-to-market combining direct field sales to national facilities and major research institutions with an authorized regional distribution network spanning Japan, China, South Korea, France, and Israel, supplemented since September 2023 by an exclusive distribution agreement with Amsterdam Scientific Instruments covering Medipix/Timepix-based detectors in the microscopy market. Revenue is generated through custom-quoted hardware system sales, accompanied by lifetime support, installation, training, and bespoke solution services. Pricing is quote-based with multi-year contract structures typical of major research facility procurement. As of 2023 the company employed approximately 30 staff and operated from expanded production facilities on the RAL site.

Name

Quantum Detectors

Legal name

Quantum Detectors Limited

Website

https://quantumdetectors.com

Company type

Private

Founded year

2007

Operating status

Operating

Headcount range

11–50 employees

Short description

Quantum Detectors is a UK-based spin-out of STFC and Diamond Light Source that designs and manufactures CERN Medipix/Timepix-based direct electron detectors, X-ray readout electronics, and beamline control systems for transmission electron microscopy and synchrotron research institutions worldwide.

Ownership category

akta.pro rank

Headquarters

HQ city

Harwell

HQ country

United Kingdom

HQ region

Europe

Offices1 record

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

Technology or R&D, Personnel, Supply Chain, Operations, Marketing or Sales, Infrastructure

Revenue model

1. Direct Electron Detector Hardware Sales: Sale of specialized hardware including MerlinEM, Merlin T4, MerlinEELS, Quantum C100 detectors for transmission electron microscopy. Products are sold as complete systems with associated software and support.
2. X-Ray Readout System Sales: Sale of Xspress 3 family digital pulse processors for synchrotron beamline X-ray fluorescence detection applications.
3. Beamline Control System Sales: Sale of PandABox timing, synchronization and control systems for synchrotron and beamline research facilities.
4. Customer Support and Service: Lifetime product care, continuous product improvement, and bespoke solution capability. Installation, training, and ongoing technical support services.

Pricing tiers

Go-to-market motion2 records

Distribution channels2 records

Marketing channels6 records

Core offering

Quantum Detectors develops and manufactures direct electron detectors (DEDs) and readout systems for transmission electron microscopy (TEM) and synchrotron radiation research. Their product portfolio includes the MerlinEM family of hybrid pixel detectors, the Xspress 3 series of X-ray fluorescence readout systems, PandABox beamline timing and control systems, and the Quantum C100 cryo-EM detector. Products leverage CERN's Medipix and Timepix ASIC technologies for noise-free electron counting and high-speed data acquisition.

Product overview

Quantum Detectors provides a portfolio of direct electron detectors (DEDs) and readout solutions for transmission electron microscopy (TEM) and synchrotron radiation research. The core electron microscopy lineup centres on the MerlinEM family — including MerlinEM (standard), MerlinEM RDP (compact retractable), and Merlin T4 (next-generation event-based hybrid pixel detector) — supplemented by MerlinEELS for EELS and the Scan Engine for precision scanning. For X-ray and synchrotron applications, the Xspress 3 Family (Xspress 3X and Xspress 3 Mini) delivers high-speed fluorescence detector readout, while PandABox provides beamline timing, synchronisation, and control. The Quantum C100 targets 100 keV cryo-EM for structural biology. Together these products serve scientific and commercial research sectors across TEM, synchrotron, and cryo-EM workflows.

Differentiator

Problem solved

Functional benefit

Products and services

• MerlinEM Direct Electron Detector (DED) purpose-built for electron microscopy, delivering rapid readout and superior signal-to-noise performance for advanced applications such as 4D-STEM and dynamic TEM imaging. Enables precise, noise-free data capture at high frame rates with radiation tolerance up to 300 kV. Available in multiple configurations including 1S, 1R, 4R, and RDP variants.
• MerlinEM RDP Compact retractable Direct Electron Detector ideal for 4D STEM and dynamic TEM imaging, offering rapid readout and improved signal-to-noise ratio in a miniaturised platform. Features quad (512x512 pixel) and single (256 pixel) configurations, redesigned for robust vacuum compatibility and broad microscope retrofit.
• Merlin T4 Next-generation hybrid pixel detector for ultra-fast TEM and 4D-STEM, powered by CERN's Timepix4 ASIC. Supports switchable event-based and frame-based acquisition with 200 picosecond per-electron time resolution, exceeding 40,000 effective frames per second. Designed for frontier method development, time-resolved electron microscopy, and in-situ experimental workflows.
• MerlinEELS Direct electron counting detector for electron energy loss spectroscopy (EELS) imaging, delivering maximum signal-to-noise ratio through electron counting and high framerates independent of detection noise to mitigate sample drift.
• Xspress 3 Family High-performance XRF detector readout system for synchrotron and silicon drift detectors, enabling high count-rate data acquisition with optimised resolution for faster XRF, EXAFS, and XPS experiments. Includes Xspress 3X and Xspress 3 Mini variants. Features portable hardware design between detectors with rapid recalibration capability.
• PandABox Fully programmable beamline data acquisition tool for synchronising timing, triggering, and encoder control across beamline experiments. Compact unit with browser-based GUI, nanosecond-level resolution, deterministic triggering, support for multiple encoder standards (RS422, SSI, BISS, EnDat), and EPICS/TANGO integration for fast scans, detector coordination, and custom logic workflows.
• Quantum C100 High-performance 100 keV imaging detector optimised for cryo-EM single particle analysis, developed with STFC, RFI, and MRC LMB to make structural biology more accessible. Simplifies cryo-EM design and lowers cost while maintaining high-quality data acquisition.
• Scan Engine Precision STEM scanning system with drift correction and synchronisation capabilities for EELS and 4D-STEM workflows, enabling faster and more accurate data collection.

Quantifiable outcome

• Frame rates more than two orders of magnitude faster than conventional CCD cameras
• +3 more outcomes

Named customers8 records

Segments4 records

Ideal customer profiles4 records

Technology focussed Yes

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Integration7 records

AI capability2 records

Feature6 records

Partnerships

Eight partnerships are on record, tiered core and minor.

• Amsterdam Scientific Instruments (ASI)coreChannel Partner/ Reseller/ Distributor · 7 September 2023Quantum Detectors became the exclusive distributor of Amsterdam Scientific Instruments' Electron Microscopy and X-ray detectors in the microscopy market. The partnership provides researchers with unified access to both companies' Medipix and Timepix-based products, streamlining procurement and enabling comprehensive advice on event vs. frame-based acquisition technologies.
• CERNcoreTechnology or IntegrationStrategic technology partnership leveraging Medipix and Timepix ASIC technologies developed at CERN. Quantum Detectors utilizes CERN's Medipix3 and Timepix3 technologies in their detector products.
• Science & Technology Facilities Council (STFC)coreStrategic or Co-development PartnerTechnology spin-out from STFC (founded 2007). Ongoing collaboration on cutting-edge detector development, particularly for the Quantum C100 cryo-EM detector developed with STFC involvement.
• Diamond Light Source (DLS)coreStrategic or Co-development PartnerTechnology spin-out from Diamond Light Source (founded 2007). Diamond was the first recipient of commercial Xspress 3 systems and has since installed them on over half of their beamlines. Ongoing collaboration on product development including PandABox co-development with SOLEIL.
• University of GlasgowcoreStrategic or Co-development PartnerCollaboration between Quantum Detectors and University of Glasgow led to the development and commercialization of the MerlinEM direct electron detector. First MerlinEM installed at University of Antwerp in group of Prof Jo Verbeeck.
• European Synchrotron Radiation Facility (ESRF)minorStrategic or Co-development PartnerCollaborates with ESRF in Grenoble, France on ongoing development of detector technology and readout systems for synchrotron research applications.
• NanoMEGASminorGTM or Marketing PartnerJoint seminar and live demonstration partnership with NanoMEGAS featuring MerlinEM alongside NanoMEGAS DigiSTAR precession hardware at Technische Universität Darmstadt and Microscopy Conference Darmstadt 2023.
• ReadCrystal BiotechminorGTM or Marketing PartnerCollaboration for showcasing 3D electron diffraction capabilities and joint webinar on de novo structure determination via 3D electron diffraction.

Scale indicators4 records

Recent moves7 records

Expansion highlights6 records

Direct peers

• Gatan (AMETEK): Gatan, owned by AMETEK, supplies the K3 and OneView direct electron detectors that are the dominant competitor to the MerlinEM family in TEM applications. It is bundled into Thermo Fisher Scientific TEMs and has the largest installed base in the cryo-EM market, making it the principal incumbent Quantum Detectors must displace.
• DECTRIS: DECTRIS (Switzerland) manufactures hybrid pixel detectors (PILATUS, EIGER, MYTHEN) using the same DECTRIS/CERN Medipix and Timepix ASIC families that Quantum Detectors uses. It is the most direct head-to-head competitor in both synchrotron X-ray detection and direct electron detection, competing for the same national-facility and academic accounts.
• Amsterdam Scientific Instruments: Amsterdam Scientific Instruments (ASI, Netherlands) builds Medipix/Timepix-based detectors for electron microscopy and X-ray imaging. It is now both a direct competitor in detector design and a distribution partner of Quantum Detectors, giving the relationship both collaborative and competitive dimensions.
• Direct Electron (AMETEK): Direct Electron (US) was a pioneer in direct electron detection for cryo-EM and was acquired by AMETEK to combine with Gatan. Its DE-series cameras compete head-to-head with MerlinEM in cryo-EM and materials science applications, now operating with Gatan's distribution muscle.

Broad incumbents

• Oxford Instruments: Oxford Instruments supplies a broad range of scientific instruments including electron microscopy, X-ray analysis, and cryogenic systems used by similar national-facility and academic customers. Its nanoScience and Asylum Research divisions compete in adjacent high-end research instrumentation markets.
• JEOL: JEOL (Japan) is a leading TEM manufacturer and a reference customer for MerlinEM (MerlinEM RDP installations at CNRS JEOL Neo Arm and at TU Darmstadt JEOL ARM-200F). It is both a partner-channel and a potential competitor through its own detector initiatives.
• Bruker: Bruker is a large diversified scientific instrumentation vendor with X-ray detectors, SDDs, and analytical instruments used in synchrotron and electron microscopy workflows. It competes broadly in detector and readout markets with the resources to bundle detectors into larger instrument sales.
• Hitachi High-Tech: Hitachi High-Tech manufactures TEMs and is a customer of Quantum Detectors for its MerlinEM platform, but it also develops in-house detectors for selected workflows. It represents both a major sales channel and a potential vertical-integration threat.
• Thermo Fisher Scientific: Thermo Fisher Scientific is the dominant TEM manufacturer (Thermo Scientific) and sells integrated systems that include Gatan detectors. As a microscope OEM that vertically integrates detector supply, it shapes the competitive landscape in which Quantum Detectors' retrofit detectors must sell.

Emerging players

• PNDetector (Raptor Photonics): PNDetector (Germany) manufactures silicon drift detectors (SDDs) and pixel detectors used in electron microscopy and X-ray spectroscopy. It is an emerging competitor in EM energy-dispersive X-ray and EELS detection, overlapping with Quantum Detectors' MerlinEELS product line.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks6 records

Key highlights7 records

Customer concentration

• LinkedInlinkedin.com/company/quantum-detectors-ltd-

Revenue estimate

Valuation estimate

Number of profiles

Profiles5 records

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about Quantum Detectors