Study about Bainbridge Mass Spectrograph, In the Bainbridge mass spectrograph, the positive rays are produced in a specially designed discharge tube ♢. In Bainbridge mass spectrograph, field particles of same velocity are selected by using a velocity selector and then they are subjected to a uniform magnetic field. Bainbridge Mass Spectrometer || Nuclear Physics || 12th Std Physics undefined. Bainbridge Mass Spectrograph | Determination of Isotopic masses (Lecture No.

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Linear separation This method of analysis is very accurate and can detect differences in the masses of two ions as small as one part in 10 9.

Bainbridge Mass Spectrograph – Quantum Study

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 spectrkgraph. Uniform magnetic field acting normal to the path of ions having same velocity deflects the ions of different masses from a straight path to circular path of different radii.

Ionization chamber is used to ionize the gas whose mass or isotope is to be determined and positive ions are produced. The ion moves in straight line path for which both the forces acting on it are equal. Note the wider line for the mass m 1showing its relatively greater abundance.

The magnetic field may be varied, so changing the radii of the particles’ paths so that ions of different masses fall on a fixed collector. The detection is by either a photographic plate mss a collector that produces a small current when the ions fall on it. Engineering Physics by Dr.

If the mass of an ion is M, its charge q and its velocity v then. If the mass of an ion is M, its charge q and its velocity v then or The radius of the path bainbrisge the deflection chamber is directly proportional to the mass of the ion.

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Mass spectrometer

Figure 2 shows the appearance of the photographic plate when a gas containing two isotopes is used. The detection is done by photographic plate when the ions fall on it. Ions are formed at D and pass through the cathode C and then through a slit S 1. A magnetic field strength B is applied at right angles to the electrostatic field and so the electrostatic and electromagnetic forces act in opposite directions to mwss other.

The linear separation using equation 3. This method of analysis is very accurate and can detect differences in the masses of spectrograpph ions as small as one part in 10 9. Velocity selector has two fields electric and magnetic field both are applied perpendicular to the moving ion beam.

A simpler form of the mass spectrograph than Aston’s is that due to Bainbridge and a plan view of this is shown in Figure 1. The radius of the path in bbainbridge deflection chamber is directly proportional to the mass of the ion.

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They then travel between two plates A and B, between which a potential V is applied. 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. This method of analysis is very accurate and can detect differences in the masses of two ions as small as one part in 10 9.

A potential V is applied between two electrodes to produce the electric field. Principle Uniform magnetic field acting normal to the path of ions having same velocity deflects the ions of different masses from a straight path to circular path of different radii, Construction i Ionization Chamber Ionization chamber is used to ionize the gas whose mass or isotope is to be determined and positive ions are produced.

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Mass spectrometer In Aston developed the first really good mass spectrograph, an instrument for measuring the masses of isotopes. His spectrogrpah gave accuracies of one part in Amita Maurya, Peoples University, Bhopal. The beam is then passed through velocity selector in which electric and magnetic fields are applied perpendicular to each other.

The radius of the path in the deflection chamber is directly proportional to the mass of the ion. A magnetic field strength B is applied at right angles to the electrostatic field and so the electrostatic and electromagnetic forces act in opposite directions to each other.

If M 1 and M 2 are the masses of two isotopes and if x 1 and x 2 are the distances from S 3. The mass spectrum is recorded on the photographic plate, when a gas containing three isotopes is used. Ions are formed in ionization chamber and pass through the cathode, then through collimating slits S 1 and S 2. The ion moves in straight line path for which both the forces acting on it are equal The velocity of ion which passes undeflected through the velocity selector is MST-I Nov Working Ions are formed in ionization chamber and pass through the cathode, then through collimating slits S 1 and S 2.

Note the wider line for the mass m 1showing its relatively greater abundance.