Results 51 to 60 of about 519,734 (204)

Performance of a corona ion source for measurement of sulfuric acid by chemical ionization mass spectrometry [PDF]

open access: yes, 2010
The performance of an ion source based on corona discharge has been studied. This source is used for the detection of gaseous sulfuric acid by chemical ionization mass spectrometry (CIMS) through the reaction of NO−3 ions with H2SO4.
Rondo, L   +11 more
core   +2 more sources

Modeling of Ionization in a Spherical Surface Ionizer

open access: yesActa Physica Polonica A, 2011
A Monte Carlo method-based model of a hot cavity surface ion source with a spherically shaped ionizer is presented. A numerical code enables studies of ion source efficiency as a function of an extraction voltage, geometry of the ionizer and its temperature, the size of extraction aperture and many other factors.
openaire   +2 more sources

The MICE Muon Beam on ISIS and the beam-line instrumentation of the Muon Ionization Cooling Experiment [PDF]

open access: yes, 2012
The international Muon Ionization Cooling Experiment (MICE), which is under construction at the Rutherford Appleton Laboratory (RAL), will demonstrate the principle of ionization cooling as a technique for the reduction of the phase-space volume occupied
A. Wilson   +815 more
core   +2 more sources

Broadband UV Supercontinuum Generation by Three-Color Ionizing Laser Pulses

open access: yesPhotonics, 2023
We theoretically investigated the properties of the ultraviolet secondary radiation generated under the action of three-color ionizing pulses obtained from parametric light generators.
Ivan Laryushin, Alexander Romanov
doaj   +1 more source

The evolution of electron overdensities in magnetic fields [PDF]

open access: yes, 2009
When a neutral gas impinges on a stationary magnetized plasma an enhancement in the ionization rate occurs when the neutrals exceed a threshold velocity. This is commonly known as the critical ionization velocity effect.
MacLachlan, C.S.   +2 more
core   +1 more source

Kinetic evaluation of the solvolysis of isobutyl chloro- and chlorothioformate esters

open access: yesBeilstein Journal of Organic Chemistry, 2011
The specific rates of solvolysis of isobutyl chloroformate (1) are reported at 40.0 °C and those for isobutyl chlorothioformate (2) are reported at 25.0 °C, in a variety of pure and binary aqueous organic mixtures with wide ranging nucleophilicity and ...
Malcolm J. D’Souza   +4 more
doaj   +1 more source

Estimation of Cosmic-Ray-Induced Atmospheric Ionization and Radiation at Commercial Aviation Flight Altitudes

open access: yesApplied Sciences, 2022
The main source of the ionization of the Earth’s atmosphere is the cosmic radiation that depends on solar activity as well as geomagnetic activity. Galactic cosmic rays constitute a permanent radiation background and contribute significantly to the ...
Panagiota Makrantoni   +10 more
doaj   +1 more source

The effect of three-stage ionization on the structure formation of a concrete mixture during shotcrete

open access: yesНедвижимость: экономика, управление, 2023
The article deals with the problem of reducing rebound and dust formation, as well as increasing the strength of shotcrete. It is known that with “dry” shotcrete, the rebound is especially significant, since the mixture does not have time to acquire ...
Valery Yakovlevich Mishchenko   +3 more
doaj   +1 more source

Sensing Properties of a Novel Temperature Sensor Based on Field Assisted Thermal Emission

open access: yesSensors, 2017
The existing temperature sensors using carbon nanotubes (CNTs) are limited by low sensitivity, complicated processes, or dependence on microscopy to observe the experimental results.
Zhigang Pan   +8 more
doaj   +1 more source

The Ionization Problem

open access: yesEMS Newsletter, 2020
Summary: ``How many electrons can a nucleus bind?'' is as old as quantum mechanics, but its rigorous answer based on the many-body Schrödinger equation remains a difficult challenge to mathematicians. Nevertheless, there has been remarkable progress in this problem in the past four decades.
openaire   +2 more sources

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