Author: Castro Carballo, M.E.
Paper Title Page
MOM308 XFEL Machine Protection System (MPS) Based on uTCA 82
 
  • S. Karstensen, M.E. Castro Carballo, J.M. Jäger, M. Staack
    DESY, Hamburg, Germany
  
  For the op­er­a­tion of a ma­chine like the 3 km long lin­ear ac­cel­er­a­tor XFEL at DESY Ham­burg, a safety sys­tem keep­ing the beam from dam­ag­ing com­po­nents is oblig­a­tory. This ma­chine pro­tec­tion sys­tem (MPS) must de­tect fail­ures of the RF sys­tem, mag­nets, and other crit­i­cal com­po­nents in var­i­ous sec­tions of the XFEL as well as mon­i­tor beam and dark cur­rent losses, and react in an ap­pro­pri­ate way by lim­it­ing av­er­age beam power, dump­ing parts of the macro-pulse, or, in the worst case, shut­ting down the whole ac­cel­er­a­tor. It has to con­sider the in­flu­ence of var­i­ous ma­chine modes se­lected by the tim­ing sys­tem. The MPS pro­vides the op­er­a­tors with clear in­di­ca­tions of error sources, and of­fers the pos­si­bil­ity to mask any input chan­nel to fa­cil­i­tate the op­er­a­tion of the ma­chine. In ad­di­tion, re­dun­dant in­stal­la­tion of crit­i­cal MPS com­po­nents will help to avoid un­nec­es­sary down­time. This paper sum­ma­rizes the re­quire­ments on the ma­chine pro­tec­tion sys­tem and in­cludes plans for its ar­chi­tec­ture and for needed hard­ware com­po­nents. It will show up the clear way of con­fig­ur­ing this sys­tem - not pro­gram­ming. Also a look into the fi­nan­cial as­pects (man­power / main­te­nance / in­te­gra­tion) will be pre­sented.  
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