A coherent beam treatment system produces a first and second energy beam that are coherent at a treatment location. An energy beam includes a neutron beam, a proton beam, an electron beam, acoustic waves, a laser and x-ray. An energy beam may be defined by a wave, such as a sinusoidal wave having a frequency and amplitude. A control system may produce a first and second beam that have coherence at a treatment location. Coherence is a location where two beams have matching wave profiles. A beam may be defined by a simple sinusoidal equation wherein the frequency and amplitude are constant as a function of time. A beam may be defined by a complex wave equation, wherein the frequency or amplitude change as a function of time. A control system may modulate one or more of the beam equations to change a location of coherence.