CERN Accelerating science

Preprint
Title	A dynamic beam window for coupling accelerator and reactor core in an ADS
Author(s)	Caspers, Fritz (CERN) ; Mueller, Alex C. (ACM Consult GmbH, Mainz)
Publication	2017
Imprint	2017
Number of pages	2
In:	Workshop on the Status of Accelerator Driven Systems Research and Technology Development, CERN, Switzerland, 7 - 9 Feb 2017
Subject category	Accelerators and Storage Rings
Abstract	During the many fruitful discussions and presentations at this EUCARD2-workshop we all were once more reminded of the respective technical short comings of the two solutions bringing an intense proton-beam on a molten-lead spallation target housed inside a fuel-loaded reactor. These are namely the window-less target solution where the accelerator is completely unprotected from accidentally back-streaming target material or the window solution with it’s inherent danger of catastrophic failure. We incidentally note how elegant the ESS spallation target circumvents all problems as shown at this EUCARD2 workshop, however, for evident reasons of size and geometry, it is not possible to lodge such a target inside the core of a subcritical reactor.