Step-by-step guide - Femtosecond (fs) timing in sample chamber 1 (SC1) at CXI.
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Setup
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Check all diodes at the beginning of the shift, by plugging them into Lecroy and visual check (with bias-T) |
Install a fast diode and mirror (roughly at 45 degrees with respect to the beam) on the SC1 post_sample_x stage (CXI:SC1:MMS:02.RBV) downstream on the interaction region.
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epeat with the fs laser and maximize the Acqiris signal by moving the diode on the chamber door. An ND filter may be necessary to reduce the signal, as shown in the side-on view belowAlso install a laser diagnostic diode (OPC-TP) to the AcqirisInsert a nozzle rod with both a clear YAG and a frosted YAG.
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