Our world leading technology.

VEC Imaging replaces the traditional coiled filament with nanotube (NT) field emission emitter (Cold Cathode)

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Benefits of our technology.

Chemically and mechanically very stable

Optimal emission characteristics (low turn-on electric field, high emission current)

Cold cathode with no heat generation (high energy efficiency)

Ultra fast switching on/off cost-effective manufacturing

Access to tomography in image guided surgery is provided

Innovative NT materials.

Improved chemical and thermal stability
Better electrical and thermal conductivity
Enhanced field emission properties (high emission current and higher emission stability)

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New cathode/emitter activation process.

VEC Imaging has taken the cathode activation process to the next level. Our revolutionary process is based on curable liquid adhesives instead of rigid adhesive tape. This allows us to avoid the issue of being highly sensitive to process parameters that are difficult to control, such as the adhesive strength and applied pressure. Instead, we control the activation results with high accuracy by managing easily the controllable process parameters including curing temperature and time.

Activation results based on high resolution curable liquid polymer

New cathode emitter activation process 2

Activation results based on adhesive tape: Poor uniformity

NT emitter produced by the state of art electrophoretic deposition process, no uniformity, rough surface

NT emitter produced by the VEC screen printing process, very uniform with smooth surface

New cathode/emitter deposition process.

VEC Imaging has developed and patented a Paste and Screen Printing (SP) process for making NT cathodes with high accuracy. This process overcomes critical technical difficulties resulting from the chemical vapor deposition (CVD) direct growth and electrophoretic deposition (EPD) process used today in terms of control, consistency and reproducibility, we have achieved

Excellent reliability and consistency on mass production scale
Extremely accurate control of average film thickness (± 1.5 µm) within one cathode and among different cathodes
Much more uniform and smooth cathode surface (surface roughness ± 3 μm)
Improved production yield and reduced material and production costs

Pulse Modulator

The PULSE MODULATORS developed by VEC Imaging offer a vast variety of features not available with other existing modulators on the market. They have been designed with scalability in mind to serve not only in industrial or military applications, but can also be used in the medical field – all this in a very compact enclosure. The unique internal design approach allows not only for multiple energy levels, but also for specific adjustment of the pulses’ slope rise and fall time as well as an active droop compensation. Features that are currently only available for the price of an additional Pulse Forming Network (PFN) are both integrated and actively programmable on a per-pulse setting at rates of more than 500 times per second, in VEC Imaging’s PULSE MODULATORS. This allows the use of a wide range of different e.g. magnetrons in an unprecedented way, and is opening doors for new applications.

Droop compensation. Flattens the amplitude across the entire pulse.

Built-in, programmable Pulse Forming allows controlled, instantaneous magnetron current and constant RF power within Nanoseconds.

With VEC Imaging’s PULSE MODULATORS, your Imagination is the limit.

Electronic Control System

The novel technology of nanotube x-ray emitters puts high demands on the controlling hardware. It requires an electronic capable of delivering high voltage and high energy in pulses lasting only fractions of milliseconds. The Electronic Control System (ECS) has initially been developed as the control and driving source for the connected MBX Tubes. The ECS is comprised of two main components – the cathode section that controls the emitters and the Anode Power Supply (APS).

Blue: Output signal

Red: Current on primary side

Green: Voltage on primary side

The ECS captivates with its modular concept, that allows for an application specific design on one hand, as well as flexibility and scalability of up to approximately 1500 high voltage switching channels on the other. The APS shows the same modular design and can be adapted to voltage levels ranging from 30 kV all the way up to 225 kV. The internal high switching frequency ranging from 100kHz to 200kHz facilitates the use small components, keeps the size small while delivering the desired power with minimal error (ripple).

The flexibility and the built-in features of the ECS make it not only the ideal driving source for the MBX Tubes but it can be used anywhere where short pulses of several Kilovolts need to be generated.