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

Journal Article · Sat Oct 01 04:00:00 EDT 1988 · IEEE Trans. Nucl. Sci.; (United States)

DOI:https://doi.org/10.1109/23.7503· OSTI ID:6742044

Kim, S M

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 authors 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. In these experiments, 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 non-linear 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.

• Research Organization: Sektion Physik, Universitat Munchen, Am Coulombwall 1, D-8046 Garching, B.R.D. (DE)
• OSTI ID: 6742044
• Journal Information: IEEE Trans. Nucl. Sci.; (United States), Journal Name: IEEE Trans. Nucl. Sci.; (United States) Vol. 35:5; ISSN IETNA
• Country of Publication: United States
• Language: English

Related Subjects

43 PARTICLE ACCELERATORS
430200* -- Particle Accelerators-- Beam Dynamics
Field Calculations
& Ion Optics
430303 -- Particle Accelerators-- Experimental Facilities & Equipment
ACCELERATORS
BEAMS
CHANNELING
COLLECTIVE ACCELERATORS
COMPUTERS
COOLING
COPPER
DATA
DETECTION
EFFICIENCY
ELECTRON BEAMS
ELECTRON CHANNELING
ELECTRON-RING ACCELERATORS
ELECTRONIC CIRCUITS
ELEMENTS
EXPERIMENTAL DATA
INFORMATION
LEPTON BEAMS
METALS
MICROELECTRONIC CIRCUITS
MICROPROCESSORS
MONOCHROMATORS
NITROGEN
NONMETALS
NUMERICAL DATA
PARTICLE BEAMS
RADIATION DETECTION
SEMICONDUCTOR DEVICES
TARGETS
TRANSITION ELEMENTS
X-RAY DETECTION