High Performance Power Supplies
  • 4 MOSAIC System
    Modular CIME HPPS
  • 1 Transformers
  • 2 RF Final Amplifier
    Anode Power Supply
  • 5 High current rectifier
    7V – 6500A
  • 3 Cyclotron Power Supply
    Driver Amplifier



The ‘Grand Accélérateur National d’Ions Lourds’ – GANIL – purchase an AC / DC converter for the main coil of C01 cyclotron of SPIRAL facility.


JEMA will participate at the world conference of particle accelerators IPAC’15 in Richmond, Virginia, USA.


JEMA supplies the first induction current transformer which plays a first role in test procedure of high power cable. This ongoing order foresee 8 other transformers which will follow the validated prototype.


JEMA takes part of AWEX delegation for CERN meeting with Belgian industry.


New order for modular CIME-MOSAIC power supply for the beam line of a new proton therapy centre for Hengjiang Company, Guangzhou, China.


JEMA will supply 9 control units for the high voltage cable industry.


Since beginning of 2013, JEMA received orders of 3 new modular power supply systems (CIME-MOSAIC) to equip the new PT’s centrums beam line for IBA; These modular power supplies (CIME-MOSAIC) will deliver stabilized direct current at 10 exp -4 precision for between 16 et 44 dipoles et quadrupoles by installed system. Today, 3 sites are already in operation.


The power supply for the transport of the low energy beam to be installed in the prototype of the ambitious European research project ‘MYRRHA’ was delivered in Grenoble. Upon other activities, this project is focussed on the possibility of reduce drastically the radioactive waste life time by transmutation.


Cegelec receive 3 double battery chargers of 5 to 10 kW for the Democratic Republic of Congo.


Sumitomo Heavy Industry Japan purchases two high performance DC installations to be included in the supply their PT centrums particle accelerators.

The Specialist in high performance DC power supplies and made to measure coil-based products.

For a number of decades, the company JEMA (also known under the name JEMA Elec) has been the uncontested Belgian specialist in high performance DC power supplies while remaining a benchmark in the production of made to measure coil-based dry and resistance transformers.

JEMA's high performance DC power supplies contribute daily to the treatment of hundreds of patients in numerous proton therapy treatment centres (cancer treatment by proton beams) in Europe, Asia and the United States.

Generally, and beyond a strong presence in the medical technology sector, JEMA direct current power supplies have applications in numerous sectors relying on particle accelerators (research laboratories, industrial or food sterilisation...) and in the most demanding industrial fields (thin film vapour deposition – pvd, polymerisation...)..

JEMA also designs and produces all types of rectifiers, battery chargers and cathodic protection, which are used in numerous sectors in infrastructure or industry. Furthermore, the experience acquired by JEMA since the end of the 1930s in the design and production of coil-based products allows us to respond to all your needs for one-off items and small or medium-sized series of dry transformers and resistances.

The design, production and tests for all these products are carried out at our premises located in the Einstein science park, Louvain-la-Neuve (Belgium), close to the university centre.

JEMA in partnership with its clients and suppliers, in collaboration with universities, industrial partners and with the assistance of the Walloon Region develops new products with increased performance and better adapted to the requirements of international and environmental standards.