ERRAI / EST. 2023 / KYOTO

COMPLETE VISUALIZATION of Gamma Rays

EXPANDING THE WORLD OF APPLICATIONS ERRAI Corporation develops and provides ETCC,
the world's first camera capable of capturing
gamma rays just like an optical camera.

SYS NOMINAL LIVE TELEMETRY N 35.0116° E 135.7681°
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Our visualization technology delivers solutions that exceed conventional limits — from the harshest decommissioning sites to space exploration and next-generation cancer therapy. By precisely capturing and rendering radiation, we accelerate both the building of a safer society and the exploration of unknown frontiers.

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Radiation Measurement
Decommissioning · Clearance · Environmental Monitoring
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Nuclear Medicine & Diagnostic Imaging
Theranostics · RI Pharmacokinetic Monitoring
003
Nuclear Security
Homeland Security & CBRNE Detection
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Space, Lunar Resource Development & Nuclear Fusion
Frontier Science & Next-Generation Energy

One measurement technology, many critical sites.
Every one of these application fields is powered by the world's first complete visualization technology developed in-house — ETCC.

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World's first,
complete visualization of gamma rays.

ETCC (Electron Tracking Compton Camera) is the world's first technology that uniquely determines the incoming direction of a single gamma ray by three-dimensionally tracking the trajectory of its scattered electron. Unlike conventional pseudo-imaging methods, ETCC completely visualizes gamma rays — the way an optical camera captures its subject — and delivers accurate measurements with noise physically eliminated.

ETCC-MK7γ-RAY · 0.2–10 MeV
ANGULAR RES · 5°
CH 012
EVT 2,847,193
STATUS ACQUIRING

From R&D to social implementation.
ETCC's applications continue to expand into medical, environmental, space and security fields. Find the latest progress in our News.

2026.06.04 EVENT ERRAI attended the 22nd Innovation R&D Grant Award Ceremony hosted by Ikeda Senshu Bank.
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For Our Investors

We support a sustainable society with reliable measurement technology, and continually work to enhance enterprise value. From R&D to commercialization, we pursue the social implementation of advanced technology from a long-term perspective.

FOUNDED
2017
PATENTS
28+
PARTNERS
17+
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ERRAI CORPORATION
FY 2026Annual Outlook

Company information and inquiries.
Find our business activities and contact details below.

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Contact

Get in Touch

For inquiries about ETCC — including complete visualization of gamma rays, image dose monitoring and related technologies — please contact us by email.

CONTACT US
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Company Profile

About ERRAI

Through the social implementation of ETCC, we contribute to enhancing safety and enriching society.

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