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- W1970603934 abstract "Abstract Medium energy time-of-flight spectrometry is an effective technique for helium backscattering as well as the elastic recoil detection of hydrogen and other light elements. However, the efficiency of a time-of-flight spectrometer, unlike that of a surface barrier detector, depends strongly on the energy and mass of the detected particle. A thorough understanding of this spectrometer quantum efficiency is necessary for quantitative measurements. We report initial measurements of the quantum efficiency of two similar time-of-flight spectrometers in forward and backscattering geometries for hydrogen, helium, and carbon projectiles over the energy range 50–275 keV. The results are compared with predictions of a model which incorporates multiple scattering and secondary electron emission at the carbon start foil along with an energy-independent microchannel plate response. When these processes are taken into account, the efficiency of a spectrometer as a function of projectile species and energy can be described to within experimental error by a single overall calibration constant." @default.
- W1970603934 created "2016-06-24" @default.
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- W1970603934 date "1994-05-01" @default.
- W1970603934 modified "2023-09-30" @default.
- W1970603934 title "Measurement of time-of-flight spectrometer efficiency for light ions at medium energies" @default.
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- W1970603934 doi "https://doi.org/10.1016/0168-583x(94)95611-1" @default.
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