Kitchener bun Kitchener bun A Kitchener bun is a type of sweet pastry made and sold in South Australia. It consists of a bun sometimes baked, sometimes fried, made from a sweet yeasted dough similar to that used for making doughnuts, split and then filled with raspberry or strawberry jam and cream, most often with a dusting of sugar on the top. The Kitchener bun resembles the Berliner, a pastry of German origin – although distinguished from it by an open face and the use of more cream than jam – and was, in fact, known as such until anti-German sentiment in
Commonly used gamma-emitting isotopes into a tumor such as a breast tumor, and the tumor is irradiated by gamma ray photons from the wire. At the end of the treatment the wire is removed. A rare but notable gamma source is sodium-24, this has a very short half-life but it emits photons with very high energies (>2 MeV). It could be used for radiography of thick steel objects if the radiography occurred close to the point of production. In common with Co-60 and Ir-192 it is formed by the neutron activation of the commonly found stable isotope. Americium-241 has been used as a source