What is the principle of Bainbridge mass spectrograph?

An instrument called Bainbridge mass spectrometer is used for the determination of atomic masses. If one or more electrons are removed from the atom then it has a net positive charge and it becomes a positive ion.

What are the 4 stages in a mass spectrometer?

The four stages of mass spectrometry are – ionization, acceleration, deflection, and detection. The sample is vaporized before being passed into an ionization chamber where it is bombarded by a stream of electrons emitted by an electrically heated metal coil.

How the principle of velocity selector is used in Bainbridge mass spectrograph?

A velocity selector was used to produce a monovelocity ion beam and a transverse magnetic field was employed to discriminate between ions of different masses. Ionization chamber is used to ionize the gas whose mass or isotope is to be determined and positive ions are produced.

What is Aston mass spectrograph?

Aston mass spectrograph is a device to measure atomic masses of isotopes with great precision What is the principle behind this spectrograph. A. Successfully first the magnetic field and then the electric field at right angles to each other.

What is velocity selector in mass spectrometer?

A Wien filter also known as velocity selector is a device consisting of perpendicular electric and magnetic fields that can be used as a velocity filter for charged particles, for example in electron microscopes and spectrometers. It is used in accelerator mass spectrometry to select particles based on their speed.

How does a velocity selector work in a mass spectrometer?

A velocity selector is used with mass spectrometers to select only charged particles with a specific velocity for analysis. It makes use of a geometry where opposing electric and magnetic forces match for a specific particle speed. It therefore lets through undeflected only those particles with the selected velocity.