Radiological Research Accelerator Facility

The Radiological Research Accelerator Facility (RARAF) is a National Resource Center supported by the National Institutes of Health. It is based on a Van de Graaff accelerator and provides well characterized radiations for experiments in radiobiology and radiological physics. Experiments are conducted by members of the Center for Radiological Research, visiting scientists and outside users. A new facility to provide neutrons with energies in the range of 10 to 100 keV is being developed.

Available beams include:

• Single particle microbeam to irradiate individual cell nuclei with single ions.

• Monoenergetic neutrons with mean energies from 0.2 to 15 MeV.

• Charged particles (protons, deuterons, helium-3 and helium-4 ions) with defined LET in the track-segment mode.

• Molecular ions providing pairs of particles of known average separation.

• 50 to 250 kVp X-rays from standard x-ray machines.

• Monoenergetic X-rays with energies between 0.3 and 3.0 keV produced by proton-induced x-ray emission (PIXE).

Please visit the RARAF homepage,, for additional information.

Manager:  Mr. Stephen Marino
Radiological Research Accelerator Facility
Nevis Laboratories
136 S. Broadway
Irvington, N.Y. 10533
tel: (914) 591-9244
fax: (914) 591-9405