| Fast neutron therapy | |
|---|---|
 Patient treating room for neutron radiation therapy | |
| ICD-10-PCS | D?0?5ZZ |
| ICD-9 | 92.26 |
Fast neutron therapy utilizes high energy neutrons typically between 50 and 70 MeV to treat cancer. Most fast neutron therapy beams are produced by reactors, cyclotrons (d+Be) and linear accelerators. Neutron therapy is currently available in Germany, Russia, South Africa and the United States. In the United States, one treatment center is operational, in Seattle, Washington. The Seattle center uses a cyclotron which produces a proton beam impinging upon a beryllium target.