منابع مشابه
Photon Flux Monitor for a Mono-energetic Gamma Ray Source
A novel photon flux monitor has been designed and tested for use at the Duke University High Intensity Gamma Source, where the photon beam produced is essentially mono-energetic but it is not tagged. Direct counting of the number of photons using a high-efficiency detector is not possible because of the high photon fluxes expected. Therefore, a direct counting detector with a low, accurately kn...
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A new kind of Cerenkov beam position monitor is described. The counter, though relatively simple and inexpensive, has high sensitivity, introduces a minimal amount of multiple scattering, and is capable of high spatial resolution over a wide range of beam currents 0 Measurements of the position of the SLAC electron beam to an accuracy of I l/2 mm have been made for electron currents from 20 nA ...
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A single-pass beam-position monitor (BPM) system to measure the injection-beam positions in the storage ring was developed. Bipolar bunch signals extracted through button electrodes were recorded in real time using a high-speed waveform digitizer, and the beam positions were determined from the amplitudes of the bipolar signals. The beam positions at 8 BPMs were measured at the same time by mea...
متن کاملBeam Intensity Profile Monitor
This paper describes an intercepting beam intenSity profile and position monitor which was developed at SLAC. It has excellent spatial resolution as well as signal efficiency. The instrument utilizes the electromagnetic cascade shower emission effect. Net charge leakage signals comparable in magnitude to the intercepted beam current are easily obtainable. The latest model of the instrument is d...
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Recent work at SNL has demonstrated unique capabilities to experimentally measure a variety of ion and neutral particle parameters inside surface features being etched, including ion energy, angular distributions, ion and neutral species measurements. This report details the construction of one recent laboratory tool designed to measure ion beam uniformity over the wafer surface in a reactive i...
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ژورنال
عنوان ژورنال: Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
سال: 1986
ISSN: 0168-9002
DOI: 10.1016/0168-9002(86)90115-4