Results 21 to 30 of about 1,500,903 (375)

Control of Foodborne Biological Hazards by Ionizing Radiations

open access: yesFoods, 2020
Ionization radiations are used to ensure food safety and quality. This irradiation process uses ions of beta or gamma rays to inactivate or destroy the food spoilage pests, microorganisms and their toxins without significantly increasing the temperature ...
Muhammad Tanveer Munir, Michel Federighi
doaj   +1 more source

Simulation of Radiation Damage for Silicon Drift Detector

open access: yesSensors, 2019
Silicon drift detector with high sensitivity and energy resolution is an advanced detector which is suitable to be used in deep space detection. To study and reveal the radiation damage of the silicon drift detector (SDD) in a deep-space environment ...
Yang Liu   +3 more
doaj   +1 more source

Ionization of Hydrogen Atom by Proton Impact—How Accurate Is the Ionization Cross Section?

open access: yesAtoms, 2023
For the control of fusion reactors, we need to accurately know all the possible reactions and collisional cross sections. Although large-scale trials have been performed over the last decades to obtain this data, many basic atomic and molecular cross ...
Károly Tőkési, Saleh Alassaf
doaj   +1 more source

Laboratory Photo-chemistry of PAHs: Ionization versus Fragmentation [PDF]

open access: yes, 2015
Interstellar polycyclic aromatic hydrocarbons (PAHs) are expected to be strongly processed by vacuum ultraviolet photons. Here, we report experimental studies on the ionization and fragmentation of coronene (C24H12), ovalene (C32H14) and hexa-peri ...
Castellanos, Pablo   +7 more
core   +3 more sources

Analysis of Combination Frequencies Arising from the Ionization of Gases by Multicolor Femtosecond Pulses

open access: yesPhotonics, 2022
Ionization-induced multiwave mixing is attracting much interest nowadays due to the possibility of generating short pulses of secondary radiation over a very wide spectral range, from terahertz to far ultraviolet. This paper presents an analytical method
Ivan Laryushin, Alexander Romanov
doaj   +1 more source

Impact of cosmic rays and solar energetic particles on the Earth’s ionosphere and atmosphere

open access: yesJournal of Space Weather and Space Climate, 2013
A brief review of the study during COST Action ES0803 of effects due to cosmic rays (CR) and solar energetic particles (SEP) in the ionosphere and atmosphere is presented.
Mateev Lachezar   +6 more
doaj   +1 more source

Hybrid CMP Slurry Supply System Using Ionization and Atomization

open access: yesApplied Sciences, 2021
Chemical mechanical planarization (CMP) is frequently used in semiconductor manufacturing to polish the surfaces of multiple layers in a wafer. The CMP uses a slurry that aids in fabricating a smooth surface by removing the excess materials.
Hoseong Jo   +4 more
doaj   +1 more source

Picosecond ionization dynamics in femtosecond filaments at high pressures [PDF]

open access: yes, 2017
We investigate the plasma dynamics inside a femtosecond-pulse-induced filament generated in an argon gas for a wide range of pressures up to 60 bar. At higher pressures, we observe ionization immediately following a pulse, with up to a threefold increase
Gaeta, AL   +9 more
core   +1 more source

Differential Analysis of the Positron Impact Ionization of Hydrogen in Debye Plasmas

open access: yesAtoms, 2023
In this work, a theoretical differential analysis of the positron impact ionization of hydrogen embedded in weakly coupled plasmas at an impact energy of 80 eV is developed.
Emiliano Acebal   +2 more
doaj   +1 more source

Dichroism Effects in the Ionization of Polarized Atoms by Short Circularly Polarized Laser Pulses

open access: yesPhotonics, 2023
The dichroism effects, i.e., asymmetries of the ionization probability with respect to the inversion of either the atomic orientation (magnetic dichroism, MD) or the circular polarization degree of the photon beam (circular dichroism, CD), are ...
Alexei V. Meremianin, Nikolai L. Manakov
doaj   +1 more source

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