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Related Concept Videos

Inductively Coupled Plasma Atomic Emission Spectroscopy: Principle01:19

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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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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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Non-equilibrium Microwave Plasma for Efficient High Temperature Chemistry
07:17

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Published on: August 1, 2017

Magnetic plasma confinement for laser ion source.

M Okamura1, A Adeyemi, T Kanesue

  • 1Brookhaven National Laboratory, Upton, New York 11973, USA. okamura@bnl.gov

The Review of Scientific Instruments
|March 3, 2010
PubMed
Summary
This summary is machine-generated.

A new method using a solenoid field successfully extended the beam pulse width from a laser ion source (LIS). This advancement is crucial for applications requiring longer, high-current particle beams, like synchrotron injection.

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Area of Science:

  • Plasma Physics
  • Particle Accelerators
  • Ion Sources

Background:

  • Laser ion sources (LIS) produce high current beams but struggle with pulse width limitations.
  • Certain applications, such as injecting highly charged beams into synchrotrons, require beam pulses exceeding 10 microseconds.
  • Extending beam pulse duration while maintaining high current is a significant challenge in accelerator physics.

Purpose of the Study:

  • To investigate a method for extending the beam pulse width of a laser ion source.
  • To determine if a solenoid field can widen the beam pulse without compromising beam quality or current.
  • To assess the impact of a solenoid field on plasma behavior within the drift space of an LIS.

Main Methods:

  • A solenoid field was applied to the drift space of a laser ion source at Brookhaven National Laboratory.
  • The effect of the solenoid field on plasma expansion and beam divergence was analyzed.
  • The state of the plasma was monitored after its passage through the solenoid field.

Main Results:

  • The applied solenoid field effectively suppressed the diverging angle of the expanding plasma.
  • This suppression resulted in a significant widening of the beam pulse.
  • The plasma state remained conserved after traversing the solenoid field (480 mm length, few hundred gauss).

Conclusions:

  • A solenoid field is a viable technique to extend the beam pulse width of a laser ion source.
  • This method allows for longer, high-current beams necessary for advanced applications.
  • The solenoid field preserves the plasma state, ensuring beam quality for downstream processes.