“The idea to make a neutron source for BNCT was born in 1998 ... irradiating a lithium target with a low energy, high current proton beam. But at that time, there was no suitable proton ...

Through detailed calculations of proton interactions with lithium-6 nuclei, the model adeptly forecasts the release of diverse particles, such as neutrons, protons, deuterons, 3 He, and alpha.

He called it a neutron, and imagined it as a paired proton and electron. There was no evidence for any of these ideas. Chadwick kept the problem in the back of his mind while working on other things.

The “lead” of a pencil is actually made of a substance called graphite which is made of carbon atoms. The picture shows a close-up of one carbon atom. A hydrogen atom has one proton as the nucleus and ...

Electrons are not normally found in the nucleus but, in an unstable nucleus, a neutron can split into a positive proton and a negative electron. The proton remains inside the nucleus, but the ...

Charge-parity violation is thought to explain why there’s more matter than antimatter in the universe. Scientists just spotted it in a new place.

A 1-Megawatt research reactor produces thermal neutrons for radioactivation purposes and for digital neutron radiography. Fast neutrons for atomic displacement research are produced by both the ...