Target and X-ray detector considerations in low-duty and intense pulse electro-channeling experiments

This is the authors' abstract. We don't add key points for this paper.

The use of the Stanford Mark III electron accelerator presents special difficulties for channeling experiments due to its low-duty factor pulses. To compensate for the low-duty cycle of the channeled electron beam, the author utilized the high average current generated by the accelerator and analyzed the X-ray output using a turnable X-ray monochromator and a semiconductor detector operating in the current mode, rather than in the normal pulse mode. Cooling of the specimen was achieved by using a copper cooling rod to remove the dissipation of 10 W into a liquid nitrogen heat sink. The nonlinear efficiency of the monochromator over its full range of 5-30 keV was compensated by controlling the scanning rotation speed using a minicomputer-controlled stepping motor.>