Head-end

Term from reprocessingApplication of chemical processes to separate the valuable s... technology; the first process step of reprocessingApplication of chemical processes to separate the valuable s.... The head-end comprises all process stages of mechanical sectioning of fuelSee 'nuclear fuel'. elements up to chemical dissolution of the spent fuelSee 'nuclear fuel'. in order to prepare extractionProcess principle for the separation of fission products fro.... The individual steps are: the fuelSee 'nuclear fuel'. elements are fed into a sectioning machine which cuts the fuel elementArrangement of a number of fuel rods into which the nuclear ... bundles, or the individual fuelSee 'nuclear fuel'. rods after dismantling of fuelSee 'nuclear fuel'. elements into approx. 5 cm long pieces. To dissolve the irradiated fuelSee 'nuclear fuel'., the fuel rodGeometrical form in which nuclear fuel surrounded by claddin... pieces fall into a dissolution deviceTechnical equipment in a reprocessing plant for the dissolut... where uraniumNatural radioactive element with the atomic number 92. The n..., plutoniumPlutonium - the 94th element in the classification of elemen... and fission productsNuclides generated by fission or subsequent radioactive deca... are dissolved in concentrated nitric acid. Once the dissolution process is finished, the fuelSee 'nuclear fuel'. solution is purified of solid particles by filtering or centrifuging and passed to a buffer container for assessment of the uraniumNatural radioactive element with the atomic number 92. The n... and plutoniumPlutonium - the 94th element in the classification of elemen... content. ZircaloyZirconium alloy based on zircon and tin used as material for..., the claddingTightly bound (usually metallic) casing directly surrounding... material of the fuelSee 'nuclear fuel'. rods resistant to nitric acid remains in the dissolution deviceTechnical equipment in a reprocessing plant for the dissolut.... (See ‘Tail-end’)