XYZ translation stage

An XYZ translation stage is required to displace the sample, and at least the two horizontal axes must be motorized the vertical axis does not need to be computer controlled. Since the orientation of the sample with respect to the translation stage movement needs to be very precisely adjusted, a kinematic mirror mount attached to the translation stage is recommended as a sample holder. 

The typical distance L) between the OCN and the sample on the xyz translation stage is 8-20 cm depending on the flow rate of the matrix solution and gas pressure. 

The PAKY system, a robot for percutaneous needle puncture, incorporates a 1-DOF PAKY (percutaneous access of the kidney) radiolucent needle driver, a2-DOF RCM (remote center of motion) module capable of needle orientation, a 3-DOF XYZ Cartesian stage for translational positioning of the needle tip, and a passive 7-DOF positioning arm (S-arm) (Fichtinger et al. 2002 Su et al. 2002). The lower joints are positioned and locked manually, while the upper stages are motorized (Fig. 28.5). 

In Table 4.3, the Cetac product LSX-200 is the specialized system for coupling with the ICP customer s system. It includes the laser, optical viewing system for exact positioning of the laser focus on a sample surface, and the sample cell mounted on the computer controlled XYZ translation stage. The system is also provided with the appropriate gas tuhing for transport of the ablated material into an ICP-OES/MS. 

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