Recent experimental studies have indicated the feasibility of a crystalline undulator obtained by depositing narrow periodic strips of silicon nitride on a silicon monocrystalline substrate. The residual stress associated to the deposition of silicon nitride induces a micro-undulation in the underlying silicon crystal. The periodicity and amplitude of the silicon crystal can be tuned to reach a high efficiency of channeling of relativistic charged particles in the ordered structure of its lattice. This communication reports on an ongoing research aimed at the mechanical modeling of the undulator structure and the characterization of the constitutive properties of the materials.
On thin coated plates with residual stress for the implementation of a crystalline undulator
RIZZONI, Raffaella
2011
Abstract
Recent experimental studies have indicated the feasibility of a crystalline undulator obtained by depositing narrow periodic strips of silicon nitride on a silicon monocrystalline substrate. The residual stress associated to the deposition of silicon nitride induces a micro-undulation in the underlying silicon crystal. The periodicity and amplitude of the silicon crystal can be tuned to reach a high efficiency of channeling of relativistic charged particles in the ordered structure of its lattice. This communication reports on an ongoing research aimed at the mechanical modeling of the undulator structure and the characterization of the constitutive properties of the materials.I documenti in SFERA sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
