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 Singletron 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