Editing Neutron source (section)

==Neutron flux==
For most applications, higher [[neutron flux]] is better (since it reduces the time needed to do the experiment, acquire the image, etc.). Amateur fusion devices, like a [[fusor]], generate only about 300 000 neutrons per second. Commercial fusor devices can generate on the order of 10<sup>9</sup> neutrons per second, hence a usable flux of less than 10<sup>5</sup> n/(cm<sup>2</sup> s). Large neutron beams around the world achieve much greater flux. Reactor-based sources now produce 10<sup>15</sup> n/(cm<sup>2</sup> s), and spallation sources generate > 10<sup>17</sup> n/(cm<sup>2</sup> s).{{citation needed|date=December 2024}}