IPAC2013 - List of Authors (Gassot, H.)

Paper	Title	Page
THPFI005	Simulations for Mechanical Design of Nozzle for Extrude of Windowless Solid Hydrogen Cryogenic Target	3297
	H. Gassot, C. Commeaux IPN, Orsay, France
	The hydrogen (H2 and D2) target is the determining element of unstable nucleus spectroscopy. This target is proposed for heavy ions beam of several MeV/nucleon in SPIRAL and SPIRAL 2 projects. Without window, the carbone contamination of the hydrogen target could be avoided. Within the project of CHyMENE (Cible d’Hydrogène Mince pour l’Etude des Noyaux Exotiques), the development of hydrogen target is supported by ANR (Agence National de la Recherche) which federates differents French research institutes such as CNRS and CEA. The IPN Orsay is involved on the conception and simulations of a nozzle which can deliver a solid ribbon of 50 micron thickness; it is a very challenging program since the knowledge about hydrogen solid at 12 K is rare, especially in terms of experimental characterizations. The important work consists at first to propose models of simulations in order to study mechanical behaviours of solid hydrogen at cryogenic temperature under pressure and optimize the geometry parameters as well as rheology properties of nozzle. The mechanical non linear modelling including contact behaviours are presented. The first simulations results are summarized.

Paper

Title

Page

Simulations for Mechanical Design of Nozzle for Extrude of Windowless Solid Hydrogen Cryogenic Target

3297

H. Gassot, C. Commeaux
IPN, Orsay, France

The hydrogen (H2 and D2) target is the determining element of unstable nucleus spectroscopy. This target is proposed for heavy ions beam of several MeV/nucleon in SPIRAL and SPIRAL 2 projects. Without window, the carbone contamination of the hydrogen target could be avoided. Within the project of CHyMENE (Cible d’Hydrogène Mince pour l’Etude des Noyaux Exotiques), the development of hydrogen target is supported by ANR (Agence National de la Recherche) which federates differents French research institutes such as CNRS and CEA. The IPN Orsay is involved on the conception and simulations of a nozzle which can deliver a solid ribbon of 50 micron thickness; it is a very challenging program since the knowledge about hydrogen solid at 12 K is rare, especially in terms of experimental characterizations. The important work consists at first to propose models of simulations in order to study mechanical behaviours of solid hydrogen at cryogenic temperature under pressure and optimize the geometry parameters as well as rheology properties of nozzle. The mechanical non linear modelling including contact behaviours are presented. The first simulations results are summarized.