Proton beams at RADEF

Proton beams at RADEF

Main characteristics of high energy proton beams at RADEF

  • Proton energies up to 55 MeV
  • Energies can be variate with aluminum degraders or directly from cyclotron
  • Fwhm of proton energies are kept as narrow as possible by avoiding too excessive energy degrading with aluminum plates. This is also important when trying to avoid neutron background. Typical fwhm for 55 and 10 MeV proton beams are 2 % and 10 %, respectively. If better energy resolution is needed, tests can be done in vacuum with some restrictions.
  • Maximum beam intensity about 3·108 protons/cm2/s for proton energies form 10-50 MeV
  • Beam profiles are of Gaussian-form
  • The maximum diameter of the irradiated area about 10 cm
  • Adjustable parallelogram collimator
  • Homogeneity is better than 10 %
  • The accuracy of the flux/fluence determination is better 10 %
  • Irradiations take place in air
  • Cable length from the DUT position to the nearest shielded position for control electronics less than 1 m.
  • Cable length from DUT position to the control barrack about 15 m
  • Data acquisition system allows automatic runs with user pre-defined irradiation criteria

Main features of low energy proton beams at RADEF

  • Proton energies between 0.4-8 MeV
  • Energies can be variate continuously with aluminum degrader and 90 degree magnet
  • The straggling of the beam energy is less than 30 keV on the energy range 0.4-3 MeV
  • Maximum beam intensity depends on energy. Around 1 MeV the maximum beam intensity is on the order of 106-107 protons/cm2/s and above 2 MeV more than 108 protons/cm2/s
  • The maximum diameter of the irradiated area is 5 cm
  • Homogeneity is better than 10 %
  • The accuracy of the flux/fluence determination is better than 10 %
  • Irradiations are done in vacuum
  • Data acquisition system allows automatic runs with user pre-defined irradiation criteria

More information

RADiation Effects Facility

RADEF, RADiation Effects Facility, is specialized in applied research related to nuclear and accelerator ­based technologies, to study of radiation effects in electronics and related materials.

RADiation Effects Facility overview

Overview of the RADiation Effects Facility.

Heavy-ion cocktails available at RADEF

RADEF specialty is high penetration heavy ion cocktail beams which are used for commercial services and academic research. The beams are called ion cocktails, because they are mixture of ions with almost the same mass to charge ratio.

Linear electron accelerator

The RADEF linear electron accelerator is a recommissioned Varian Clinac® medical accelerator. It is located in its own enclosure within the RADEF cave.