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Related Concept Videos

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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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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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Atomic Emission Spectroscopy: Lab01:29

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AES is a powerful analytical technique, especially effective when used with plasma sources, producing abundant spectra in characteristic emission lines. The Inductively Coupled Plasma (ICP), in particular, yields superior quantitative analytical data due to its high stability, low noise, low background, and minimal interferences under optimal experimental conditions. However, newer air-operated microwave sources are emerging as promising alternatives that could be more cost-effective than...
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Atomic emission spectroscopy (AES) is an analytical technique used to determine the elemental composition of a sample by analyzing the light emitted from excited atoms. In AES, atoms in a sample are excited to higher energy levels by thermal energy from high-temperature sources, such as plasma, arcs, or sparks. When these excited atoms return to lower energy states, they emit light at specific wavelengths characteristic of each element. The resulting atomic emission spectrum, which consists of...
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Experimental characterization of the AISHa ion source.

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The Advanced Ion Source for Hadrontherapy (AISHa) delivers high-brightness ion beams for cancer treatment. This compact electron cyclotron resonance ion source achieved high performance and fixed critical issues, enhancing hadron therapy applications.

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Area of Science:

  • Medical Physics
  • Particle Accelerators
  • Ion Beam Technology

Background:

  • Hadron therapy requires high-brightness ion beams for effective cancer treatment.
  • Electron cyclotron resonance (ECR) ion sources are crucial for generating these beams.
  • The Advanced Ion Source for Hadrontherapy (AISHa) project aims to meet these demands.

Purpose of the Study:

  • To design and commission the Advanced Ion Source for Hadrontherapy (AISHa).
  • To achieve high-intensity multiply charged ion beams for clinical applications.
  • To present operational results and discuss future improvements.

Main Methods:

  • Utilized a compact electron cyclotron resonance ion source.
  • Employed a hybrid magnetic system with a permanent Halbach-type hexapole magnet and superconducting coils.
  • Operated with a single 18 GHz generator, addressing commissioning criticalities.

Main Results:

  • Achieved high performances in a cost-effective manner.
  • Successfully produced high-intensity beams of oxygen, argon, and carbon ions.
  • Identified and rectified critical issues during the 2018/19 commissioning phase.

Conclusions:

  • AISHa is a viable and cost-effective solution for generating essential ion beams for hadron therapy.
  • The source demonstrates significant potential for producing high-intensity carbon beams, critical for this treatment modality.
  • Future enhancements, such as double frequency heating, promise further performance gains.