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Related Concept Videos

Chemical Ionization (CI) Mass Spectrometry01:21

Chemical Ionization (CI) Mass Spectrometry

The molecular ion peak of a molecule in the mass spectrum provides vital information for molecular identification. However, conventional electron impact ionization can lead to the rapid dissociation of some molecular ions before they reach the detector. A milder ionization method is required to increase the lifetime of such ionized analyte molecules. Chemical ionization (CI) is a gas-phase protonation reaction useful for mass-analyzing analyte molecules that are easily protonated to yield the...
Inductively Coupled Plasma–Mass Spectrometry (ICP–MS): Overview01:19

Inductively Coupled Plasma–Mass Spectrometry (ICP–MS): Overview

In inductively coupled plasma–mass spectrometry (ICP–MS), an inductively coupled plasma (ICP) torch is used as an atomizer and ionizer. Solid samples are dissolved and volatilized before being introduced into the high-temperature argon plasma, while solution samples are nebulized and passed through the high-temperature argon plasma. Plasma dissociates the analytes and ionizes their component atoms to form a mixture of positive ions and molecular species. The positive ions are then passed on to...
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Ionization Energy

The amount of energy required to remove the most loosely bound electron from a gaseous atom in its ground state is called its first ionization energy (IE1). The first ionization energy for an element, X, is the energy required to form a cation with 1+ charge:
Inductively Coupled Plasma Atomic Emission Spectroscopy: Principle01:19

Inductively Coupled Plasma Atomic Emission Spectroscopy: Principle

Inductively coupled plasma (ICP) is the most widely used plasma source in atomic emission spectroscopy (AES), also known as Inductively Coupled Plasma Optical Emission Spectroscopy (ICP-OES). The ICP source, or torch, consists of three concentric quartz tubes with argon gas flowing through them. A spark from a Tesla coil initiates the ionization of argon, generating a high-temperature plasma.
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The quadrupole mass analyzer consists of four cylindrical metal rods arranged in a diamond carrying a DC voltage and a radio-frequency AC voltage. The motion of ions through the quadrupole depends on the field strength, causing only ions of a certain m/z to resonate successfully and strike the detector at a given field strength. Though the transmission rate for these analyzers is high, the exact elemental composition of the sample is not determined because of low resolution; however, they are...
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Inductively Coupled Plasma Atomic Emission Spectroscopy: Instrumentation

Inductively coupled plasma (ICP) is the common plasma source used in atomic emission spectroscopy (AES), a technique that detects and analyzes various elements in a sample. This method is often called inductively coupled plasma atomic emission spectroscopy (ICP-AES).
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Automated Delivery of Microfabricated Targets for Intense Laser Irradiation Experiments
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High-intensity carbon ion injector.

S Humphries1, C W Mendel, G W Kuswa

  • 1Sandia Laboratories, Albuquerque, New Mexico 87185, USA.

The Review of Scientific Instruments
|August 1, 1979
PubMed
Summary
This summary is machine-generated.

A novel injector system utilizes carbon plasma guns for direct ion injection into an acceleration gap. This method achieves high ion currents and energies for intense carbon ion beams.

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Area of Science:

  • Plasma Physics
  • Particle Accelerators
  • Ion Beam Technology

Background:

  • Intense ion beams are crucial for various applications, including fusion energy and materials science.
  • Existing injection methods face limitations in current and energy delivery.
  • Development of efficient injectors is key to advancing accelerator performance.

Purpose of the Study:

  • To describe a new injector system for intense carbon ion beams.
  • To demonstrate direct injection into a magnetically insulated acceleration gap.
  • To characterize the performance of the carbon plasma gun array.

Main Methods:

  • Utilizing an array of carbon plasma guns.
  • Direct injection of carbon ions into a magnetically insulated acceleration gap.
  • Measurement of ion currents and beam energies.

Main Results:

  • Achieved ion currents exceeding 3 kA.
  • Delivered beam energies of 100-300 keV for C+ and 200-600 keV for C++.
  • Operated over a 700-ns pulselength.

Conclusions:

  • The described injector system enables efficient generation of intense carbon ion beams.
  • Direct injection into a magnetically insulated gap is a viable method for high-current ion acceleration.
  • This technology holds promise for applications requiring high-flux ion beams.