Solution


Graphene-
Based
Field emission
Cold-Cathodes

The problem

Traditional cathodes
are inefficient,

energy-intensive,
and short-lived

Traditional cathodes are inefficient,
energy-intensive, and short-lived

Limitations

X-ray sources require miniaturization, improved efficiency, and enhanced reliability.

X-ray sources require enhanced reliability, improved efficiency and miniaturization.

Limitations

X-ray sources require miniaturization, improved efficiency, and enhanced reliability.

Inefficiency

High-energy consumption and short reduce performance in electric propulsion systems.

Inefficiency

High-energy consumption and short reduce performance in electric propulsion systems.

Overheating

Traditional cathodes generate excessive heat, limiting their lifespan and long-term stability.

Traditional cathodes generate excessive heat, limiting long-term operation.

Overheating

Traditional cathodes generate excessive heat, limiting their lifespan and long-term stability.


Graphene-
based
Electron
and X-ray
Sources


Stay cool
when others
burn out



Graphene-
based
Electron
and X-ray
Sources


Stay cool
when others
burn out


Solution

Graphene-Based
Field emission
Cold-Cathodes

Solution


Graphene-Based
Field emission
Cold-Cathodes

Solution


Graphene-Based
Field emission

Cold-Cathodes

Techology Innovation

Techology
Innovation

СoldXray provide durable, scalable and energy-efficient solution

ColdXray cathodes solve
these challenges with a scalable, durable, and energy-efficient solution

No heating elements

Eliminates excessive power consumption, enabling more efficient and stable operation.

No heating elements

Eliminates excessive power consumption, enabling more efficient and stable operation.

Highly durable

Highly
durable

Resistant to extreme conditions, ensuring long-term reliability in space and medical applications.

Highly durable

Resistant to extreme conditions, ensuring long-term reliability in space and medical applications.

Eco-friendly

Eco-
friendly

Developed with sustainable CVD manufacturing, reducing environmental impact.

Eco-friendly

Developed with sustainable CVD manufacturing, reducing environmental impact.

Compact & scalable 



Compact
& scalable 



Designed for seamless integration across various industries, from satellites to X-ray systems.

Compact & scalable 



Designed for seamless integration across various industries, from satellites to X-ray systems.

Digitally controllable

Enables precise operation and adaptability for different use cases.

Digitally controllable

Enables precise operation and adaptability for different use cases.

Instant Start-Up

Instant
Start-Up

Activates immediately without warm-up time, improving efficiency and operational readiness.

Instant Start-Up

Activates immediately without warm-up time, improving efficiency and operational readiness.

Transforming
Aerospace
& Medical Tech

Transforming
Aerospace &
Medical Tech

Transforming
Aerospace
& Medical Tech


Aerospace


Aerospace

ColdXray’s graphene-based cold cathodes are transforming space propulsion by providing highly efficient electron emission for electric thrusters. Our technology enhances satellite longevity, reduces energy consumption, and ensures stable, reliable operation in extreme space conditions.

ColdXray’s graphene-based cold cathodes are transforming space propulsion by providing highly efficient electron emission for electric thrusters. Our technology enhances satellite longevity, reduces energy consumption, and ensures stable, reliable operation in extreme space conditions.

WORKING PROTOTYPES
PATENT APPLICATION


Aerospace

ColdXray’s graphene-based cold cathodes are transforming space propulsion by providing highly efficient electron emission for electric thrusters. Our technology enhances satellite longevity, reduces energy consumption, and ensures stable, reliable operation in extreme space conditions.

WORKING PROTOTYPES
PATENT APPLICATION


Medical & Industrial


Medical & Industrial

Our graphene-based cathodes revolutionize X-ray generation by eliminating the need for traditional filament heating, making X-ray systems more compact, durable, and energy-efficient. This innovation enhances imaging in healthcare, security screening, and industrial non-destructive testing.

WORKING PROTOTYPES
PATENT PENDING


Medical & Industrial

Our graphene-based cathodes revolutionize X-ray generation by eliminating the need for traditional filament heating, making X-ray systems more compact, durable, and energy-efficient. This innovation enhances imaging in healthcare, security screening, and industrial non-destructive testing.

WORKING PROTOTYPES
PATENT PENDING

Key Benefits

Key Benefits

Higher efficiency

Our graphene cold cathodes cut power use, extending operational life and boosting performance.

Longer lifespan

Built for durability, our cathodes withstand extreme environments, ensuring extended operational life and lower maintenance costs.

Cost reduction

By increasing efficiency and durability, our graphene cold cathodes significantly cut down operational and manufacturing costs.

Higher efficiency

Our graphene cold cathodes cut power use, extending operational life and boosting performance.

Longer lifespan

Built for durability, our cathodes withstand extreme environments, ensuring extended operational life and lower maintenance costs.

Cost reduction

By increasing efficiency and durability, our graphene cold cathodes significantly cut down operational and manufacturing costs.

Higher efficiency

Our graphene cold cathodes cut power use, extending operational life and boosting performance.

Longer lifespan

Built for durability, our cathodes withstand extreme environments, ensuring extended operational life and lower maintenance costs.

Cost reduction

By increasing efficiency and durability, our graphene cold cathodes significantly cut down operational and manufacturing costs.

Higher efficiency

Our graphene cold cathodes cut power use, extending operational life and boosting performance.

Longer lifespan

Built for durability, our cathodes withstand extreme environments, ensuring extended operational life and lower maintenance costs.

Cost reduction

By increasing efficiency and durability, our graphene cold cathodes significantly cut down operational and manufacturing costs.

Heating

=0°C

Operates at low temperatures, ensuring stability and efficiency.

Lifetime

>10 000 hours

Long lifespan reduces maintenance and replacement costs.

Inertia

<10⁻⁹ seconds

Our solutions save our clients an average of 3 hours of work per day.

Brightness

~10 mA/cm2

Delivers stable and efficient electron emission for various uses.

Some Numbers

Some Numbers

Some Numbers

Heating

Heating

=0°C

=0°C

=0°C

Operates at low temperatures, ensuring stability and efficiency.

Lifetime

Lifetime

>10 000
hours

>10 000
hours

Long lifespan reduces maintenance and replacement costs.

Lifetime

>10 000
hours

Long lifespan reduces maintenance and replacement costs.

Inertia

Inertia

<10⁻⁹
seconds

<10⁻⁹
seconds

Our solutions save our clients an average of 3 hours of work per day.

Inertia

<10⁻⁹
seconds

Our solutions save our clients an average of 3 hours of work per day.

Brightness

Brightness

~10
mA/cm2

Delivers stable and efficient electron emission for various uses.

Brightness

~10
mA/cm2

Delivers stable and efficient electron emission for various uses.

Our Partners

Our Partners

ColdXray trusted by Leading Institutions,
Incubators, and Industry Innovators

Meet our Team

Meet our Team

Three PhD on board, seasoned entrepreneurs,
and industry-backed innovation driving
the future of graphene technology

Contact us

Office:

Joensuu,
North Karelia,
Finland



Local time:

20:07:15