This subproject is one of many research subprojects utilizing the resources provided by a Center grant funded by NIH/NCRR. The subproject and investigator (PI) may have received primary funding from another NIH source, and thus could be represented in other CRISP entries. The institution listed is for the Center, which is not necessarily the institution for the investigator. The development of BioCAT's microprobe capabilities has been proposed for the current NIH grant cycle to enhance our facility. During 2005 we performed a series of improvements to our existing KB mirrors system and related equipment. The main development was the relocation of the microprobe table to the end of the recently extended hutch D. The reallocation required extending all the power cables to drive motors, both servo and stepper motors, which move the experimental table, sample holder, video camera and detector holder. Signal and High voltage cables were also installed at this section of the hutch. A new gas distribution panel with up to 5 cylinders is located near the table. The advantage of the new location for the microprobe experiment is two fold: a) being away from the beamline optics allow us to pre-focus the beam to increase flux delivered on the sample and therefore decrease our scanning time per spot, and b) the setup is kept assembled after the experiments minimizing this way setup time for posterior experiments. A new detector amplifier was purchased from XIA, which allows achieving higher count rates with minor spectrum distortion. During 2005 both KB mirrors were refurbished (after detection of material deposition on their surface). A new version of the scanning software called FMAP was developed.
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