Search research articles

ABOUT JoVE

Overview Leadership Blog JoVE Help Center

AUTHORS

Publishing Process Editorial Board Scope & Policies Peer Review FAQ Submit

LIBRARIANS

Testimonials Subscriptions Access Resources Library Advisory Board FAQ

RESEARCH

JoVE Journal Methods Collections JoVE Encyclopedia of Experiments Archive

EDUCATION

JoVE Core JoVE Business JoVE Science Education JoVE Lab Manual Faculty Resource Center Faculty Site

Terms & Conditions of Use

Related Concept Videos

Mass Analyzers: Common Types

Mass Analyzers: Common Types

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...

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by

Same author

THz ATR-TDS Spectroscopy of Acetone-Water Mixtures: Hydrogen Bonding to Dipole-Dipole Dynamics.

International journal of molecular sciences·2026

Same author

Fast Detection of Uric Acid in Urine for Early Diagnosis Using THz Polarized Waves.

Sensors (Basel, Switzerland)·2025

Same author

Design of a Cavity for the High-Power Radio-Frequency Quadrupole Coupler Test for the ANTHEM Project.

Sensors (Basel, Switzerland)·2024

Same author

Button-Type Beam Position Monitor Development for Fourth-Generation Synchrotron Light Sources: Numerical Modeling and Test Bench Measurements.

Sensors (Basel, Switzerland)·2024

Same author

Dielectric Response of Different Alcohols in Water-Rich Binary Mixtures from THz Ellipsometry.

International journal of molecular sciences·2024

Same author

Highly Tunable MOCVD Process of Vanadium Dioxide Thin Films: Relationship between Structural/Morphological Features and Electrodynamic Properties.

Sensors (Basel, Switzerland)·2023

Search research articles

Related Experiment Video

Updated: Jul 1, 2026

Simulation, Fabrication and Characterization of THz Metamaterial Absorbers

Simulation, Fabrication and Characterization of THz Metamaterial Absorbers

Published on: December 27, 2012

Sub-THz Characterization of Technical Surfaces for Particle Accelerator Vacuum Chambers.

Andrea Passarelli¹, Maria Rosaria Masullo¹, Zahra Mazaheri^1,2

¹National Institute for Nuclear Physics-Naples Unit, Monte Sant'Angelo University Complex, Via Cintia, 80126 Naples, Italy.

Sensors (Basel, Switzerland)

|August 10, 2024

Summary

This summary is machine-generated.

This study introduces a new method to measure the sub-terahertz (sub-THz) electromagnetic response of vacuum chamber coatings used in particle accelerators. This helps optimize accelerator performance by understanding material properties at high frequencies.

Keywords:

THz coating materials particle accelerators waveguide spectroscopy

More Related Videos

Characterization of Thermal Transport in One-dimensional Solid Materials

Characterization of Thermal Transport in One-dimensional Solid Materials

Published on: January 26, 2014

Experimental Methods of Dust Charging and Mobilization on Surfaces with Exposure to Ultraviolet Radiation or Plasmas

Experimental Methods of Dust Charging and Mobilization on Surfaces with Exposure to Ultraviolet Radiation or Plasmas

Published on: April 3, 2018

Related Experiment Videos

Last Updated: Jul 1, 2026

Simulation, Fabrication and Characterization of THz Metamaterial Absorbers

Simulation, Fabrication and Characterization of THz Metamaterial Absorbers

Published on: December 27, 2012

Characterization of Thermal Transport in One-dimensional Solid Materials

Characterization of Thermal Transport in One-dimensional Solid Materials

Published on: January 26, 2014

Experimental Methods of Dust Charging and Mobilization on Surfaces with Exposure to Ultraviolet Radiation or Plasmas

Experimental Methods of Dust Charging and Mobilization on Surfaces with Exposure to Ultraviolet Radiation or Plasmas

Published on: April 3, 2018

Area of Science:

Materials Science
Particle Accelerator Technology
Electromagnetism

Background:

Coatings in particle accelerator vacuum chambers are vital for pumping and mitigating electron cloud effects.
Coating-induced surface impedance changes can limit accelerator performance, energy, and current.
Understanding material response in the very-high-frequency (VHF) range is critical for next-generation accelerators.

Purpose of the Study:

To present a novel technique for characterizing the sub-terahertz (sub-THz) electromagnetic response of coating materials.
To evaluate the electromagnetic properties of technical surfaces used in accelerators under realistic conditions.
To provide insights into material behavior in the sub-THz frequency range for optimizing accelerator performance.

Main Methods:

A waveguide-based method was developed to measure pulsed signals transmitted through coated material samples.
The technique probes the sub-THz response of deposited materials on a substrate.
Experimental data from three Non-Evaporable Getter (NEG) coating samples prepared at CERN were analyzed.

Main Results:

The study successfully demonstrated a technique to probe the sub-THz electromagnetic properties of accelerator coatings.
Experimental data from NEG coatings provided valuable insights into their behavior in the sub-THz range.
The methodology allows for comprehensive exploration of electromagnetic properties of technical surfaces.

Conclusions:

The developed technique is essential for characterizing coating materials for advanced particle accelerators.
Findings contribute to a deeper understanding of coating-accelerator structure interactions.
The research aims to optimize performance and efficiency in particle acceleration technologies.