Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
Results
Showing 1 to 11 of 11 for “"Faraday Cup"”.
-
Characterization of the deuteron beam current in a linear accelerator for nuclear-diagnostic calibrations
… this determines the fusion-reaction rate. A Faraday Cup was installed and used for this purpose, in which an ammeter is used to measure the charge built up on the cup that is proportional to the beam current of the accelerator. Currents up to -100p~A were measured using the Faraday Cup. For …
-
Solar wind plasma : kinetic properties and micro-instabilities
… Observations of solar wind +H and +2He by the Faraday Cup instrument component of the Solar Wind Experiment on the Wind spacecraft show that these ions have magnetic field-aligned, convected, bi-Maxwellian velocity distribution functions. The analysis yields the best-fit values of the bulk …
-
Formation and extraction of a dense plasma jet from a helicon-plasma-injected inertial electrostatic confinement device
… in the jet was measured by a combination of a Faraday cup and a gridded energy analyzer (GEA). The Faraday cup also included a temperature sensor for collection of thermal power measurements used to compute the efficiency of the IEC device in coupling power into the jet. The GEA allowed for …
-
Control and characterization of a cyclotron proton beam
… directions; with the beam in the z-direction. A Faraday cup was used as a diagnostic to monitor and characterize the beam after deflection. The system was designed by using magnetic circuit theory and fundamental electromagnetic theory. A software package called finite element method magnetic …
-
Development of a ferroelectric plasma source through material degradation studies and characterization of volume and surface discharges
… 100000 pulses. Emission is characterized with a Faraday cup, a fast photodiode, an optical emission spectrometer (OES), a residual gas analyzer (RGA), and a quartz crystal microbalance (QCM) that all monitor output during the emission process. The Faraday cup serves as an excellent detector of …
-
Characterization of a piezoelectric transformer plasma source
… monitors, emission current measurements with a Faraday cup and retarding potential analyzer, and imaging with an optical spectrometer and an ICCD camera.
-
Advanced Faraday cage measurements of charge, short-circuit current and open-circuit voltage
… solid dielectric experiments, we use a patented Faraday cage which is composed of two identical in-line hollow, gold-plated Faraday cup electrodes that enclose the samples which move between them during each measurement under computer control. We conducted charge measurements using various …
-
Rapid material interrogation using X rays from a dense plasma focus
… Ions up to 130 keV were measured using a Faraday Cup. The measured hard X-ray spectrum shows an X-ray emission in the range from 20 to 120 keV with a peak at 50 keV while the average effective energy was estimated, using a step filter method, to be 59±3 keV. The KSU-DPF device was used as …
-
Insights into the radiation Chemistry of FLASH Radiation Therapy
… A beam collector (BC) Faraday cup detector was characterized on a FLASH Mobetron and benchmarked against a reference alternating-current current transformer (ACCT). Performance metrics included linearity with charge per pulse and total charge, pulse width (0.5–4 µs), …
-
Nearly Monoenergetic Positive Ion Beam with Self-Neutralized Space Charge Extracted from a Pulsed Plasma and Its Application
… field energy analyzer (RFEA) and a movable Faraday cup were used to measure the IED and the time resolved ion and electron current densities, as a function of position along the beam axis, to unravel the mechanism of self-neutralization of the space charge of the ion beam. When a +100 V DC …
-
In-line powder flow behaviour measured using electrostatic technology
… approach, (ii) co-use of techniques (such as Faraday-cup and charge decay analysers) to validate the in-line charging behaviour, (iii) further exploration of the significance of the signal amplitude difference at the tablet press hopper outlet in on the characteristics of the tablet compact.