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Measurement of the velocity-momentum-energy
relations of relativistic electrons and determination
of e/m. Energetic electrons from the beta decay
of 90SR and its decay
product 90Y are sorted
according to momentum by a 180 degree magnetic
spectrograph, passed through a velocity selector,
and detected by a PIN diode detector.
Plots of momentum and energy
vs. velocity are compared with the theoretical
relations of classical and relativistic dynamics,
and the value of the ratio e/m is derived from
the data.
Student Wiki: Relativistic Dynamics
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Lab Guide in PDF format
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- Thomson, J.J., "Cathode Rays", Phil. Mag. S. Vol. 44, Oct, 1897
- Segre, E., "Radioactive Decay",
Experimental Nuclear Physics, Vol. I, pp. 1-39
- Serge, E., "Sec
2.1B-D: Passage of Heavy Particles through Matter", Experimental
Nuclear Physics, Vol. I., pp.231-252
- Evans, "Chapter 17: Beta-Ray
Spectra", Atomic Nucleus, pp. 536-566
- Bleuler, Ernst and Goldsmith, G.J., "Exp
19: Range and Energy Loss of Alpha Particles; Exp 23: Radiations of Cu(64)
(Zn(65))", Experimental Nucleonics, pp. 275-282, and 3341-354
- Ritson, D.M., "Ch
1: General Properties of Particles and Radiation", Techniques
of High Energy Physics, p. 1-53
- England, "Sec
4.2: Magnetic spectrometers for beta particles and electrons", Techniques
in Nuclear Structure Physics, Vol. 2, pp. 349-383
- Evans, "Chapter 26: Statistical
Fluctuations in Nuclear Processes", Atomic Nucleus, pp. 746-772
- Ba-133
Decay Chart - Reprinted from Table of Isotopes 7th Edition, QD 466 L 473
(1978)
- Stopping
Power and Range Tables for Electrons
- J. W. Clark, "A New Method for Obtaining a Uniform Magnetic Field",
Rev. Sci. Inst., 9, pp. 320-322, (1938)
- Edward M. Purcell "Electric Conduction in a Magnetic Field: The Hall Effect", Electricity and Magnetism: 2nd Edition, pp. 241-245, (1985)
- Edward M. Purcell "Exact Relations Among SI and CGS Units", Electricity and Magnetism: 2nd Edition, pp. 473-475, (1985)
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8.13 Syllabus and Policies
