Electrostatic probe diagnostics on the LBL 10 ampere neutral beam ion source

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Dept. of Energy, [Office of Energy Research], Lawrence Berkeley Laboratory, for sale by the National Technical Information Service] , Berkeley, Calif, [Springfield, Va
Probes (Electronic instruments), Plasma (Ionized gases) -- Measur
StatementKurt F. Schoenberg, Lawrence Berkely Laboratory, University of California
SeriesLBL ; 7952
ContributionsLawrence Berkeley Laboratory, United States. Dept. of Energy
The Physical Object
Paginationv, 89 p. :
ID Numbers
Open LibraryOL14880677M

ELECTROSTATIC PROBE DIAGNOSTICS ON THE LBL 10 AMPERE NEUTRAL BEAM ION SOURCE. Author(s): Schoenberg, Kurt F. et al. Main Content Metrics Author & Article Info.

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Schoenberg.

Details Electrostatic probe diagnostics on the LBL 10 ampere neutral beam ion source FB2

ELECTROSTATIC PROBE DIAGNOSTICS ON THE LBL 10 AMPERE NEUTRAL BEAM ION SOURCE. By Kurt F. Schoenberg. Topics: General and Miscellaneous. Publisher: eScholarship, University of California. Year: OAI identifier: Provided by: eScholarship - University Author: Kurt F.

Schoenberg. The FA was initially used to study only ion-neutral reactions, the only diagnostic tool necessary being the downstream mass spectrometer. Subsequently, the FALP technique was developed [31], in which a Langmuir probe is included in the FA (see Figure 2) to measure n e, n +, and T e along the length of the afterglow plasma column.

LBL @ Lawrence Berkeley Laboratory UNIVERSITY OF CALIFORNIA Accelerator & Fusion ^e^e^rcj^ivisior^^ ws® A STUDY OF THE GENERAL PLASMA CHARACTERISTICS OF A HIGH POWFR MULTIFILAMENT ION SOURCE Kurt F.

Schoenberg Electrostatic probe diagnostics on the LBL 10 ampere neutral beam ion source book. thesis) September Prepared for the U.S. Department of Energy under Contract WENG MTMWTMI OF mi DKUMHT IS Cited by: 1. Ehlers's 91 research works with 1, citations and reads, including: The design and fabrication of a large rectangular magnetic cusp plasma source for high intensity neutral beam injectors.

We find that incorporation of H2 A. Electrostatic probe diagnostics on the LBL 10 ampere neutral beam ion source. Daniel De Paola rated it liked it A detailed tutorial robegto be found at https: Graphene-based LbL deposited films: Red, black, green, white, and gold were chosen as being in harmony with the philosophical ideas of CAFS.

Electrostatic probe diagnostics on the LBL 10 ampere neutral beam ion source LBL 10 ampere ion source are presented. Data is obtained via a pulsed acquisition system which digitally records a.

Description Electrostatic probe diagnostics on the LBL 10 ampere neutral beam ion source FB2

The keV Neutral Beam Test Facility at LBL is fitted with several types of instrumentation to determine the properties of the to A hydrogen and deuterium beams produced in this facility. (10) Direct wall D^-neutral beam neutron production is measured to be 10 % of the volume Fusion Ion Reaction Product Detector Another diagnostic, shown schematically in Fig.

10, has been developed by Foote [24] to detect the energetic ion reaction product from fusion reactions, i.e., from the 3-MW proton branch (instead of the MW neutron. Kwan's research works with 1, citations and 3, reads, including: An accelerator facility for WDM, HEDP, and HIF investigations in Nazarbayev University.

Electrostatic-probe measurements of plasma parameters for two reentry flight experiments at feet per second Unique plasma diagnostic measurements at high altitudes from two geometrically similar blunt body reentry spacecraft using electrostatic probe rakes are presented.

The probes measured the positive ion density profiles (shape and magnitude) during the two flights. The electrostatic potential at the sample volume, Φ sv, is measured by the difference between the secondary and primary beam energy, Ws and Wp.

A primary ion with charge qp = Zpe loses qpΦ sv of kinetic energy in reaching the sample volume. This process is path independent.

The secondary ion with charge qs gains qsΦ sv of kinetic energy.

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A real time digital spectral analysis system, applicable to broad band plasma fluctuations, is presented. The system digitally records plasma potential fluctuations on a pair of matched electrostatic probes, and subsequently outputs the cross power spectral density and phase via an on‐line computer graphics display.

The spectral analysis system and its experimental accuracy are. A reflectron is an electrostatic device introduced by Mamyrin [] that compensates for distributions of initial kinetic energies of analysed ions [].Two ions with the same m/z ratio but with different kinetic energies reach the detector in a very narrow time-window.

A reflectron is added to a linear Wiley–McLaren TOF setup at the end of the field-free region and acts as a focusing mirror. Automotive Diagnostic Tools for professional technicians, shop owners, and educators.

Sales | Manufacturing | Consulting. Shopping Cart High Amp Probe with Banana Plugs (AES# BP) $ Add to Cart. Details. High Amp Probe with BNC (AES# BNC) Was: $ Now. Three modifications of single electrostatic probes were used for arc plasma studies as shown in Fig.

The first two types of regular metallic probes for measurements were relatively far from the discharge (the distance to arc center r>15 mm).In this case, probe contamination with the synthesized nanostructures was relatively low; therefore, shutter was not necessary. Keywords: heavy ion beam probe, HIBP, electrostatic potential, electric field DOI: /pfr 1.

Introduction A heavy ion beam probe (HIBP) is a unique diagnos-tic tool for measuring the electrostatic potential, its fluc-tuationsand density fluctuations in high-temperature mag-netically confined plasmas directly without perturbing the. A new e‐beam probe is developed to study the potential structure inside a SEIC device [G.

Miley et al., Fusion Technol. 19, ()].The device has a spherical grid negatively biased inside a spherical vacuum chamber. Ions oscillate through the highly transparent grid, forming a single potential well inside the cathode.

The potential in turn attracts electrons from ionization of. Full Text Available The encapsulation of living cells is appealing for its various applications to cell-based sensors, bioreactors, biocatalysts, and bioenergy.

A quasi-experimental design and various statistical procedures were applied to test formulated hypotheses. Electrostatic probe diagnostics comppeto the LBL 10 ampere neutral beam ion.

@article{osti_, title = {Using neutral beams as a light ion beam probe (invited)}, author = {Chen, Xi and Heidbrink, W. and Van Zeeland, M. and Pace, D. and Petty, C. and Fisher, R. and Kramer, G.

and Nazikian, R. and Austin, M. and Hanson, J. and Zeng, L.}, abstractNote = {By arranging the particle first banana orbits to pass near a distant detector, the light. Recent measurements of the production of H-by dissociative attachment of vibrationally excited H 2 molecules have indicated that H-current densities of several milliamperes per cm 2 are possible in a low density discharge in a magnetic multipole or bucket source.

A modified bucket source based on this H-production process is described which is a part of a prototype for a single module of a. Practically, for any plasma source the voltage, discharge current intensity, electrode configuration (with an equivalent inter-electrode distance and the material of cathode), the gas pressure, and the working gas are the most important given constructive parameters.

For low pressures cases ( - 10. A new e‐beam probe is developed to study the potential structure inside a SEIC device [G. Miley et al., Fusion Technol. 19, ()]. The device has a spherical grid negatively biased inside a spherical vacuum chamber.

Ions oscillate through the highly transparent grid, forming a single potential well inside the cathode. The potential in turn attracts electrons from ionization of. The collector and guard ring are typically biased 10 to V negative of ground to repel electrons and measure ion current in an ion saturation regime.

Aperture-Style Probes Our aperture, or "collimated," style probe has a reduced entrance area, admitting particles through. As heavy ion beam probe energies increase, the commonly used parallel‐plate energy analyzer may not be practical. A cylindrical electrostatic analyzer is being tested as a possible replacement.

However, a prototype ° analyzer failed to behave as prescribed by an ideal model that neglected fringing fields. A simulation of this analyzer, which used a detailed finite element evaluation for. SST-1 (or Steady State Superconducting Tokamak) is a plasma confinement experimental device in the Institute for Plasma Research (IPR), an autonomous research institute under Department of Atomic Energy, belongs to a new generation of tokamaks with the major objective being steady state operation of an advanced configuration ('D' Shaped) plasma.

In the case of watts, what will happen is that into 30 ohms of the Sound Lab ESL in the bass region the amp is going to make slightly more than watts at full power.

what this means is a tube amp of only watts can keep up with a watt solid state amp on a set of Sound Labs. THE POSITIVE ION PORTION OF THE LBL/LLL NEUTRAL BEAM PROGRAM.

Author(s): Pyle, R.V. et al. Main Content Metrics Author & Article Info. Main Content. Download PDF to View View Larger. Thumbnails Document Outline Attachments. Previous. Next. Highlight all. Other articles where Electrostatic probe is discussed: plasma: Determination of plasma variables: With the electrostatic probe, ion densities, electron and ion temperatures, and electrostatic potential differences can be determined.

Small search coils and other types of magnetic probes yield values for the magnetic field; and from Maxwell’s electromagnetic equations the current and charge.

Electrostatic probe diagnostics on the LBL 10 ampere neutral beam ion source. By K.F. Schoenberg. Cite. BibTex; Full citation; Publisher: Office of Scientific and Technical Information (OSTI) Year: DOI identifier: / OAI identifier: Provided by: MUCC (Crossref Author: K.F.

Schoenberg. Neutral white Line black Data- orange Data+ red Wire-nuts unction box (by others) From dimmer V To fixture To next fixture V JBOX # Power cable (by others) unction box (by others) To fixture To next fixture From previous fixture Ground green Neutral white Line black Wire-nuts Dimmer Maximum run lengths - 15A maximum, 16AWG.

The heavy ion beam probe system in the Large Helical Device (LHD) was improved as follows. At first, the additional new sweeper was installed into the diagnostic port to extend the observable region.

By using this sweeper, the potential profile was measured in a wider minor radius range than in previous experiments, in the case of outward shifted magnetic configuration of LHD.Fusion power is a proposed form of power generation that would generate electricity by using heat from nuclear fusion a fusion process, two lighter atomic nuclei combine to form a heavier nucleus, while releasing energy.

Devices designed to harness this energy are known as fusion reactors. Fusion processes require fuel and a confined environment with sufficient temperature.