coldXray provides graphene‑based cold‑cathode field‑emission devices that generate electrons and X‑rays without heating elements, cutting power consumption and eliminating overheating.
Funding
Funding not disclosed
Founders
Product
Problem
Traditional electron and X‑ray cathodes rely on heated filaments, which consume high power, generate excessive heat, and have limited lifespans, reducing efficiency and reliability in applications such as electric propulsion, space hardware, and medical imaging.
Solution
coldXray replaces heated cathodes with graphene‑based cold‑cathode field‑emission devices that emit electrons without any heating element. The graphene cathodes operate at low power, eliminating the bulk of energy loss associated with thermal emission. Their inherent thermal stability prevents overheating, extending operational life even under extreme temperature and radiation conditions. The technology is manufactured via sustainable chemical vapor deposition, offering a compact and scalable form factor that can be integrated into existing electron‑gun and X‑ray systems. By delivering a durable, energy‑efficient electron source, coldXray enables more reliable performance for high‑demand aerospace, propulsion, and medical imaging platforms.
Target Audience
Primary customers are manufacturers of electric propulsion systems, satellite and space hardware providers, and medical imaging equipment companies that require reliable, low‑power electron or X‑ray sources.
Features
- Graphene field‑emission cathodes that generate electrons without heating, reducing power consumption by orders of magnitude
- Intrinsic thermal resilience that prevents overheating and supports long‑term operation in harsh environments
- High durability and extended lifetime compared to conventional thermionic emitters
- Eco‑friendly CVD manufacturing process that lowers material waste and environmental impact
- Compact, modular design suitable for integration into satellites, electric thrusters, and medical X‑ray equipment
- Scalable production allowing customization of emission current and beam geometry for diverse applications