New success for ITHPP with the realization of two generators using a high voltage Marx at 4.3MV

11 Oct 2022

New success for ITHPP with the realization of two so-called 'conventional' generators using a high voltage Marx at 4.3MV and a Pulse Forming Shaping Water Line (PFL) for flash radiography applications,  to improve the hydrodynamic testing capabilities of the Atomic Weapon Establishment (UK). This facility, which is part of the Franco-British TEUTATES program, will enable research and development activities to be carried out.

Générateur de Marx
Generator using a high voltage Marx and a water Pulse Forming Line (PFL) for flash radiography applications (~2MV, 650kA, ~100ns).

 

2 générateurs installés sur deux axes de radiographie séparés par un angle de 45°.
Generators positioned on two x-ray axes separated by a 45° angle

These two generators power a Plasma Filled Road Pinch Diode (PFRP) to provide two ultra-bright X-ray sources installed on two radiography x-ray axes separated by a 45° angle.

In order to meet the customer's requirements, especially in terms of ergonomics and maintenance time, the installation was designed and manufactured with a small special feature. The tank of each of the generators is equipped with a hydraulically operated side door under which the Marx generator can slide in a motorized manner and be suspended for easy assembly and maintenance. Each of the machines is remotely controlled. Another important feature is the SF6, which is generally used in high-voltage generators and known as the best gas insulator to date but particularly polluting, has been banned.

Technical parameters of each generator:

  • Voltage: ~2MV
  • Current: ~650kA
  • Pulse duration: ~100ns
  • Rise time: 20ns
  • Jitter: < 50ns
  • Overall dimensions: 9 x 6.3(door open) x 4.6 m.
  • Total weight: ~70t
  • Mobile machine
  • Automatically controlled hydraulic door opening and closing device to access the Marx generator.
  • Operable by 2 persons

More information on the Marx generators HERE