Related Experiment Video
Updated: Jun 18, 2025

Measurement of Ultrafast Vibrational Coherences in Polyatomic Radical Cations with Strong-Field Adiabatic Ionization
Published on: August 6, 2018
A High Dynamic Range Ion Detector for Multireflection Time-of-Flight Analyzers
Hamish Stewart1, Johannes Petzoldt1, Toby Shanley1
1Thermo Fisher Scientific, 11 Hannah-Kunath Strasse, 28199 Bremen, Germany.
New multireflection analyzers relax detector requirements, enabling advanced detection systems. This improves dynamic range, detector lifespan, and ion detection efficiency for time-of-flight mass spectrometry.
Area of Science:
- Mass Spectrometry
- Analytical Chemistry
- Instrumentation
Background:
- Reflectron time-of-flight analyzers require fast detectors for resolving ion peaks.
- Multireflection analyzers offer longer ion paths, easing detector response time constraints.
Purpose of the Study:
- To present a novel detection system for multireflection analyzers.
- To enhance dynamic range, detector lifetime, and ion detection efficiency.
Main Methods:
- Integration of a detection system with a multireflection analyzer.
- Utilizing 10 keV postacceleration and focal plane correction.
- Employing BxE focusing, optically coupled detector, preamplification, and dual-channel digitization.
Main Results:
- Demonstrated >1 x 10^4 dynamic range in a single shot.
- Achieved >100k resolving power.
- Exhibited relative immunity to detector aging.
Conclusions:
- The new detection system significantly enhances multireflection analyzer performance.
- This technology overcomes limitations of traditional reflectron analyzers.
- It offers substantial improvements in key performance metrics for mass spectrometry.
More Related Videos
09:38Dithranol as a Matrix for Matrix Assisted Laser Desorption/Ionization Imaging on a Fourier Transform Ion Cyclotron Resonance Mass Spectrometer
Published on: November 26, 2013
10:03Proton Transfer and Protein Conformation Dynamics in Photosensitive Proteins by Time-resolved Step-scan Fourier-transform Infrared Spectroscopy
Published on: June 27, 2014
Related Concept Videos
Mass Analyzers: Common Types
Inductively Coupled Plasma Atomic Emission Spectroscopy: Instrumentation
There are three main types of inductively coupled plasma atomic emission spectroscopy (ICP-AES) instruments: sequential, simultaneous multichannel, and Fourier transform instruments, with the latter being less commonly used....
Mass Analyzers: Overview
Tandem Mass Spectrometry
Secondary fragmentations occur in the interaction cell and can be induced by various factors. Fragmentation induced by collision with inert gases, such as N2, Ar, He, etc., is called collision-induced...
Gas Chromatography: Types of Detectors-II
High-Performance Liquid Chromatography: Types of Detectors