Neutron Generator Overview Sealed Neutron Tubes Ion Sources Spark Gap Cold Cathode (Penning) Hot Cathode Microwave Electron Cyclotron Resonance (ECR) Radio Frequency (RF) Targets High Voltage Power Supplies Thousands of such small, relatively inexpensive systems have been built over the past five decades. Fusion of a deuterium and a tritium atom (D + T) results in the formation of a He-4 ion and a neutron with a kinetic energy of approximately 14.1 MeV. Fusion of deuterium atoms (D + D) results in the formation of a He-3 ion and a neutron with a kinetic energy of approximately 2.5 MeV. The fusion reactions take place in these devices by accelerating either deuterium, tritium, or a mixture of these two isotopes into a metal hydride target which also contains either deuterium, tritium or a mixture. Neutron generators are neutron source devices which contain compact linear accelerators and that produce neutrons by fusing isotopes of hydrogen together.
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