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Part of the book series: Handbuch der Physik / Encyclopedia of Physics ((PHYSIK 8,volume 8 / 42))

Abstract

The study of alpha-radioactivity has generated many of the fundamental concepts of atomic and nuclear structure. Important discoveries came from both the effort to understand the mechanism of the alpha-emission process and from the observation of events produced by the high velocity particles. In this latter category we should recall that it was from the analysis of large-angle scattering of alpha-particles that Rutherford [1] conceived of the atomic nucleus as the center of mass and positive charge. He also made the fundamental deduction that the subatomic particles bearing the charge within the nucleus must exhibit strong short range attractive force, otherwise the nucleus could not exist. As further examples, the discoveries of nuclear transmutation by Rutherford 1 and of artificial radioactivity by I. Curie and F. Joliot 2 came about from the irradiation of light elements with alpha particles.

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References

References for Table 1

  1. Jones, Schuman, Butler, Cowper, Eastwood and Jackson: Phys. Rev. 102, 203 (1956).

    Article  Google Scholar 

  2. Asaro, Stephens, Thompson and Perlman: Phys. Rev. 98, 19 (1956).

    Article  Google Scholar 

  3. Friedman, Gindler, Barnes, Sjoblom and Fields: Phys. Rev. 102, 585 (1956).

    Article  ADS  Google Scholar 

  4. Harvey, Chetham-Strode, Ghiorso, Thompson and Choppin: Unpublished data (1955).

    Google Scholar 

  5. Hummel, Asaro, Stephens, Thompson and Perlman: Unpublished data (1955).

    Google Scholar 

  6. A. Ghiorso and B. G. Harvey: Unpublished data (1954) mentioned in [7],

    Google Scholar 

  7. F. S. Stephens jr.: Ph. D. Thesis, University of California (U.C. Radiation Laboratory Unclassified Report UCRL-2970), June 1955.

    Google Scholar 

  8. A. Chetham-Strode and L. W. Holm: To be published (1956).

    Google Scholar 

  9. Ghiorso, Rossi, Harvey and Thompson: Phys. Rev. 93, 257 (1956).

    Article  Google Scholar 

  10. Asaro, Stephens, Harvey and Perlman: Phys. Rev. 100, 137 (1955).

    Article  Google Scholar 

  11. L. B. Magnusson: Unpublished data mentioned in [11].

    Google Scholar 

  12. Magnusson, Friedman, Engelkemeir, Fields and Wagner: Phys. Rev., to be published (1956).

    Google Scholar 

  13. Hulet, Thompson and Ghiorso: Phys. Rev. 95, 1703 (1954).

    Article  ADS  Google Scholar 

  14. Hummel, Stephens, Asaro, Chetham-Strode and Perlman: Phys. Rev. 98, 22

    Google Scholar 

  15. Asaro, Stephens, Chetham-Strode and Perlman: Unpublished data (1955).

    Google Scholar 

  16. A. Chetham-Strode jr., G. R. Choppin and B.G.Harvey: Phys. Rev. 102, 747

    Google Scholar 

  17. A. Chetham-Strode jr.: Ph. D. Thesis, University of California (U.C. Radiation Laboratory Unclassified Report UCRL-3322), June 1956.

    Google Scholar 

  18. A. Chetham-Strode jr., F. S. Stephens jr. and F. Asaro: Unpublished data (1955)

    Google Scholar 

  19. Fields, Studier, Diamond, Mech, Inghram, Pyle, Stevens, Fried, Manning Ghiorso, Thompson, Higgins and Seaborg: Phys. Rev. 102, 180 (1956).

    Article  ADS  Google Scholar 

  20. Privatecommunication from E. K. Hulet, 1956.

    Google Scholar 

  21. E. K. Hulet, S. G. Thompson and A. Ghiorso: Phys. Rev. 95, 1703 (1954).

    Article  ADS  Google Scholar 

  22. Asaro, Thompson and Perlman: Unpublished data (1954).

    Google Scholar 

  23. Hummel, Asaro, Thompson and Perlman: Unpublished data (1955).

    Google Scholar 

  24. F. Asaro, S. G. Thompson and I. Perlman: Phys. Rev. 92, 694 (1953).

    Article  ADS  Google Scholar 

  25. F. Asaro, B. G. Harvey and I. Perlman: Unpublished data (1955/56).

    Google Scholar 

  26. R- A. Glass: Ph. D. Thesis, University of California (U.C. Radiation Laboratory Unclassified Report UCRL-2560), April 1954.

    Google Scholar 

  27. G. H. Higgins: Ph. D. Thesis, University of California (U.C. Radiation Laboratory Unclassified Report UCRL-1796), June 1952.

    Google Scholar 

  28. Stephens, Hummel, Asaro and Perlman: Phys. Rev. 98, 261 (1955) and unpublished data (1955).

    Google Scholar 

  29. F. Asaro and I. Perlman: Phys. Rev. 93, 1423 (1954).

    Article  ADS  Google Scholar 

  30. L. L. Gol’din, E. F. Tret’yakov and G. I. Novikova: Conf. Acad. Sci. USSR, on Peaceful Uses of Atomic Energy, Phys. Math. Sci., p. 226 (July 1955) UCRL translation 242.

    Google Scholar 

  31. J affé, Passell, Browne and Perlman: Phys. Rev. 97, 142 (195 5)

    Google Scholar 

  32. F. Asaro and I. Perlman: Unpublished data mentioned in [32]; also F. Asaro, Ph. T. Thesis, University of California (U.C. Radiation Laboratory Unclassified Report UCRL-2180), June 1952.

    Google Scholar 

  33. I. Perlman and F. Asaro: Ann. Rev. Nucl. Sci. 4, 157 (1954).

    Article  ADS  Google Scholar 

  34. F. Asaro and I. Perlman: Unpublished data (1956).

    Google Scholar 

  35. F. Asaro and I. Perlman: Phys. Rev. 94, 381 (1954).

    Article  ADS  Google Scholar 

  36. F. Asaro, F. S. Stephens jr. and I. Perlman: Unpublished data (1955).

    Google Scholar 

  37. J. P. Hummel, F. Asaro, G. H. Higgins and I. Perlman: Unpublished data (1956).

    Google Scholar 

  38. D. C. Dunlavey and G. T. Seaborg: Unpublished data listed in [32].

    Google Scholar 

  39. T. D. Thomas and R. A. Glass: Unpublished data (1956).

    Google Scholar 

  40. Magnusson, Engelkemeir, Freedman, Porter and Wagner: Phys. Rev. 100, 1237A (1955).

    Google Scholar 

  41. H. G. Jackson and B. G. Harvey: Private communication mentioned in [32].

    Google Scholar 

  42. B. Zajac: Phil. Mag. 43, 264 (1952).

    Google Scholar 

  43. G. Valladas: Dr. Thesis, Commissariat a Energie Atomique Rapport C.E.A. No. 483 (1955).

    Google Scholar 

  44. J- R. Grover and G. T. Seaborg: Private communication (1952), reported in University of California Radiation Laboratory Unclassified Report UCRL-2455, p. 22 (Jan. 1954).

    Google Scholar 

  45. G. Valladas: C. r. Acad. Sci., Paris 237, 1673 (1953); see also [42].

    Google Scholar 

  46. F. Asaro and I. Perlman: Phys. Rev. 99, 37 (1955).

    Article  ADS  Google Scholar 

  47. F. Asaro and I. Perlman: Phys. Rev. 99, 37 (1955).

    Article  ADS  Google Scholar 

  48. F. Asaro and I. Perlman: Phys. Rev. 99, 37 (1955).

    Article  ADS  Google Scholar 

  49. F. Asaro and I. Perlman: Phys. Rev. 99, 37 (1955).

    Article  ADS  Google Scholar 

  50. F. S. Stephens jr., F. Asaro and I. Perlman: Phys. Rev. 96, 1568 (1954).

    Article  ADS  Google Scholar 

  51. J. P. Hummel, F. Asaro and I. Perlman: Unpublished data (1955); see also [50] and [29].

    Google Scholar 

  52. J. P. Hummel, F. Asaro and I. Perlman: Phys. Rev. 98, 261A (1955).

    Article  Google Scholar 

  53. S. W. Peat and M. A. S. Ross: Proc. Phys. Soc. Lond. A 68, 923 (1955).

    Google Scholar 

  54. G. Valladas and R. Bernas: C. r. Acad. Sci., Paris 91, 2230 (1953).

    Google Scholar 

  55. F. S. Stephens jr., F. Asaro and I. Perlman: Unpublished data (1955).

    Google Scholar 

  56. F. Asaro, F. S. Stephens jr. and I. Perlman: Phys. Rev. 92, 1495 (1953).

    Article  ADS  Google Scholar 

  57. Pilger, Hummel, Asaro and Perlman: Unpublished data (1955). See University of California Radiation Laboratory Unclassified Report UCRL-3240, p. 72 (Dec. 1955).

    Google Scholar 

  58. Stephens, Hummel, Asaro and Perlman: Unpublished data (1956); see also [7].

    Google Scholar 

  59. F. S. Stephens jr., F. Asaro and I. Perlman: Unpublished data (1956).

    Google Scholar 

  60. F. F. Momyer jr., F. Asaro and E. K. Hyde: J. Inorg. Nucl. Chem. 1, 267 (1955).

    Article  Google Scholar 

  61. L. Madansky and F. Rasetti: Phys. Rev. 102, 464 (1956).

    Article  ADS  Google Scholar 

  62. F. F. Momyer jr. and E. K. Hyde: Phys. Rev. 101, 136 (1956).

    ADS  Google Scholar 

  63. F. Asaro and I. Perlman: Unpublished data (1953) listed in [32].

    Google Scholar 

  64. G. H. Briggs [63] recalculated the energy of the main Em219 alpha group from the original data [64] using later values for the reference energies.

    Google Scholar 

  65. G. H. Briggs: Rev. Mod. Phys. 26, 1 (1954). This is a compilation of the best values for the energies of natural alpha particles.

    Google Scholar 

  66. M. Curie and S. Rosenblum: C. r. Acad. Sci., Paris 196, 1598 (1933).

    Google Scholar 

  67. The alpha particle energy of Em207 was increased 20 kev above the value given in [66] in order to correspond to the best available value for Em208.

    Google Scholar 

  68. F. F. Momyer jr. and E. K. Hyde: J. Inorg. Nucl. Chem. 1, 274 (1955).

    Article  Google Scholar 

  69. R. W. Hoff, J. P. Hummel and F. Asaro: Unpublished data (1954); see also University of California Radiation Laboratory Unclassified Report UCRL-3157, p. 67 (Sept. 1955).

    Google Scholar 

  70. Stoner, Asaro, Stephens and Hyde: University of California Radiation Laboratory Unclassified Report UCRL-2455, p. 14 (Jan. 1954).

    Google Scholar 

  71. Perlman, Stephens, Hummel, Pilger and Asaro: University of California Radiation Laboratory Unclassified Report UCRL-3068, p. 37 (July 1955).

    Google Scholar 

  72. W. Jentschke, A. C. Juveland and G. H. Kinsey: Phys. Rev. 96, 231 (1954).

    Article  ADS  Google Scholar 

  73. F. Asaro and I. Perlman: Rev. Mod. Phys. 26, 237 (1954). This is a compilation of alpha disintegration energies.

    Google Scholar 

General references

  1. S. Rosenblum and H. Tyrén: C. r. Acad. Sci., Paris 239, 1205 (1954).

    Google Scholar 

  2. H. B. Levy and I. Perlman: Phys. Rev. 94, 152 (1954).

    Article  ADS  Google Scholar 

General references

  1. Rutherford, E.: Radioactive Substances and their Radiations. London: Cambridge University Press 1913. — A work such as this, written during the early formative period of radioactivity, provides insight into the development rather than the results of one of the most brilliant chapters in the history of science.

    Google Scholar 

  2. Gamow, G.: Z. Physik 51, 204 (1928). — The original paper propounding the wave mechanical explanation of the alpha decay process. The explanation was independently advanced by Condon and Gurney [3].

    Google Scholar 

  3. Condon, E. U., and R. W. Gurney: Nature, Lond. 122, 439 (1928). — Phys. Rev. 33, 127 (1929). — The original papers proposing, independently of Gamow [2], the wave mechanical explanation of the alpha decay process.

    MATH  Google Scholar 

  4. Perlman, I., and F. Asaro: Ann. Rev. Nucl. Sci. 4, 157 (1954). — This review article on alpha radioactivity presents for the first time numerous results from high resolution alpha spectroscopic work. The paper touches on a large number of topics related to alpha emission, including the then new spectroscopic investigations revealing population of numerous nuclear rotational bands.

    Google Scholar 

  5. Glass, R. A., S. G. Thompson and G. T. Seaborg: J. Nucl. Inorg. Chem. 1, 3 (1955). —This paper presents a comprehensive set of nuclear masses for the heavy region, calculated from alpha-and beta-decay energy balance cycles supplemented by a few experimental neutron binding energies. By estimating alpha decay energies the table is extrapolated to include masses of as-yet-undiscovered nuclei.

    MathSciNet  Google Scholar 

  6. Perlman, I., A. Ghiorso and G. T. Seaborg: Phys. Rev. 77, 26 (1950). — This paper systematizes the trends of alpha decay energies and alpha decay rates, drawing on the large number of new artificial alpha emitters produced and studied for the first time in the preceding decade. Many of the principles developed in the present article were laid down in this 1950 paper.

    Google Scholar 

  7. Hyde, E. K., and G. T. Seaborg: This Volume. Berlin: Springer 1957. — This article has a thorough modern review of the transuranium isotopes. Its presentation of chemical and nuclear properties makes it an indispensable reference for those interested in the transuranium region.

    Google Scholar 

  8. Feenberg, E.: Shell Theory of the Nucleus. Princeton: Princeton University Press 1955. — Mayer, M. G., and J. H. D. Jensen: Elementary Theory of Nuclear Shell Structure. New York: John Wiley & Sons; London: Chapman & Hall 1955. — Pryce, M. H. L.: Nuclear Shell Structure. Rep. Progr. Phys. 17, 1 (1954). — These works thoroughly cover the theory and applications of the spin-orbit coupling spherical well nuclear shell models, which have affected nuclear science so profoundly since their inception in 1949.

    Google Scholar 

  9. Pryce, M. H. L.: Proc. Phys. Soc. Lond. A 65, 773, 962 (1952). — In this paper the spherical well shell model is applied to the problem of the level systems of nuclei near Pb208, which has closed neutron and proton configurations. This work is an indispensable reference for theoretical studies or correlations involving nuclei of this region.

    Google Scholar 

  10. Bohr, A., and B. R. Mottelson: Dan Mat. fys. Medd. 27, No. 16 (1953). — This work gives the original comprehensive application of the unified nuclear model, which introduces features of collective motion into the individual particle model. Most of the data constituting the strongest support of the model have been accumulated subsequent to this 1953 paper. The paper contains a wealth of useful formulas for application of the model.

    Google Scholar 

  11. Bohr, A., and B. R. Mottelson: Dan Mat. fys. Medd. 30, No. 1 (1955). — This paper is concerned largely with the rotational properties of nuclei in the regions of stabilized spheroidal deformation. A large number of data on nuclear rotational bands are presented, but the main emphasis is on the theoretical problem of explaining the empirical moments of inertia.

    Google Scholar 

  12. Rasmussen, J. O., and B. Segall: Phys. Rev. 103, 1298 (1956). — This paper develops the theory of alpha decay of nuclei with stable spheroidal deformation. The derived wave equations are applied numerically to the cases Th228 and Cm242 to give information regarding the most probable surface zones for formation of energetic alpha particles.

    Article  ADS  Google Scholar 

  13. Nilsson, S. G.: Dan. Mat. fys. Medd. 29, No. 16 (1955). — This paper presents tables and graphs of eigenfunctions and eigenvalues for a nucleon in a three-dimensional harmonic oscillator potential with varying degrees of spheroidal distortion. Semi-empirical terms for spin-orbit interaction and an I • I interaction were included. These tables have many applications in correlating nuclear properties in the regions of spheroidal nuclear shapes.

    Google Scholar 

  14. Preston, M. A.: Phys. Rev. 71, 865 (1947). — A careful derivation (by GAMOW’S complex eigenvalue method) of the decay rate probability of an alpha particle trapped in the lowest virtual level (for given angular momentum) of the one-body square potential well is given. The rather involved derivation of the COULOMB function from the contour integral form leads to essentially the same result as does the ordinary WKB method.

    Article  ADS  MATH  Google Scholar 

  15. Sexl, T.: Z. Physik 81, 163 (1933). — This paper contains an interesting review of several early treatments of alpha decay rate theory in the five years following the original papers [2] and [3]. SExL’s own thorough treatment of the problem is along the lines described in the preceding reference [14] and seems indeed to form the basis for PRESTON’S treatment.

    Article  MATH  Google Scholar 

  16. Winslow, G. H.: On the One-Body Model of Alpha Radioactivity, IV. Calculated Wave Amplitudes near the Nucleus. Argonne National Laboratory Report ANL-5381, Jan., 1955 (unpublished). — This work contains an extensive set of tables calculating squares of the radial alpha wave function near the nuclear surface from data for known alpha emitters. Trends of these calculated values are discussed. Tables and graphs for the calculation of centrifugal barrier effects are given.

    Google Scholar 

  17. Thomas, R. G.: A Formulation of the Theory of Alpha-particle Decay from Time-independent Equations. Progr. Theor. Phys. 12, 253 (1954). — This work concisely presents alpha decay rate theory in a formalism closely related to the collision matrix theory often applied to nuclear reactions. Results are derived for the one-body model. Many-body modifications are also discussed. The paper contains a lucid discussion of electron screening effects and contains several references to modern literature on alpha decay rate theory.

    MATH  Google Scholar 

  18. Bethe, H. A.: Rev. Mod. Phys. 9, 69 (1937). For alpha decay and barrier penetration see pp. 161–171 and pp. 177-78. — This work on alpha decay is still a valuable reference work nearly two decades after its appearance. The penetration factor formulas and symbols are still widely used. Although the particular form of the many-body model Bethe proposed is not generally favored today, this treatment of the one-body model and discussion of the fundamental problems are lucid and timely even today.

    Article  ADS  MATH  Google Scholar 

  19. Winslow, G. H., and O. C. Simpson: On the One-body Model of Alpha Radioactivity, I. Survey of the Existing Results. Argonne National Laboratory Report ANL-4841, June, 1952 (unpublished). — This paper gives a good review and numerical comparisons of several earlier one-body alpha decay rate formulations. Graphs and tables serving as aids to computation of barrier penetrabilities are also presented.

    Google Scholar 

  20. Winslow, G. H., and O. C. Simpson: On the One-body Model of Alpha Radioactivity, II b. S-state Decay with the Limiting Square Well Model. Argonne National Laboratory Report ANL-4910, Jan., 1953 (unpublished). — A one-body treatment of alpha decay with sloping potential walls at the nuclear surface is given.

    Google Scholar 

  21. Winslow, G. H., and O. C. Simpson: On the One-body Model of Alpha Radioactivity, III. Non-S-state Decay, Preformation Factors, Model Variations, General Discussion. Argonne National Laboratory Report ANL-5277, April, 1954 (unpublished). — This paper tests WKB approximations of the COULOMB functions. The authors also discuss the atomic electron screening correction. They present a “surface well” one-body model and propose many-body modifications. Some of the material of this paper is published in — [27].

    Google Scholar 

  22. Devaney, J. J.: Phys. Rev. 91, 587 (1953). — This paper develops an alpha decay rate theory of many-body type based on statistical considerations of average nuclear level spacings near ground.

    Article  ADS  Google Scholar 

  23. Blatt, J. M., and V. F. Weisskopf: Theoretical Nuclear Physics. New York: John Wiley & Sons, Inc. 1952. For alpha decay see pp. 568–578. — In the space devoted to alpha decay the statistical many-body model based on average level spacings is developed and applied to nuclear data for calculation of effective nuclear radii. Selection rules for alpha decay are presented.

    Google Scholar 

  24. Rasetti, F.: Elements of Nuclear Physics, p. 100. New York: Prentice-Hall, Inc. 1936. — The one-body model of alpha decay is treated by construction of a wave packet of time-dependent wave functions, and the behavior with time is derived. This is a more general and fundamental approach than the usual treatments by the complex eigen-value or other methods using time-independent wave functions, but the numerical results are essentially the same.

    Google Scholar 

  25. Winslow, G. H., and O. C. Simpson: On the One-body Model of Alpha Radioactivity, II a. S-state Decay with the Consistent Square Well Model. Argonne National Laboratory Report ANL-4901, Dec., 1952 (unpublished). — The method of Rasetti [24] is employed and extended to derive a one-body decay rate expression, and they demonstrate that the methods of Bethe [18] and Preston [14] lead to the same results as theirs when sufficiently accurate approximations are employed

    Google Scholar 

  26. Kemble, E. C.: The Fundamental Principles of Quantum Mechanics, p. 192. New York: Mcgraw-Hill Co. 1937. — Kemble also gives an interesting treatment of the one-body alpha decay model using wave packets of time-dependent wave functions.

    Google Scholar 

  27. Winslow, G. H.: Phys. Rev. 96, 1032 (1954). — A “surface well” one-body model and its many-body modification are treated and discussed. Peripheral subjects such as the atomic electron screening correction are also discussed.

    Article  ADS  MATH  Google Scholar 

  28. Migdal, A.: J. Phys. USSR. 4, 449 (1941). — Formulas for the probability of orbita electron ejection during alpha emission are derived. Expressions for the energy distribution of ejected electrons are also given.

    Google Scholar 

  29. Preston, M. A.: Phys. Rev. 75, 90 (1949). — The effects of non-central interactions between alpha particle and recoil nucleus are explored, and the general methods underlying later developments (e.g. [12]) are set forth.

    Article  ADS  Google Scholar 

  30. Racah, G.: Phys. Rev. 62, 438 (1942). — This paper contains a wealth of formulas useful for quantum-mechanical treatment of systems of interacting particles. The very general tensor algebra developed here offers powerful methods for attacking problems of non-central interactions in alpha decay, as well as a host of other problems including many-electron or many-nucleon systems.

    Article  ADS  Google Scholar 

  31. Bohr, A., P. O. Fröman and B. R. Mottelson: Dan. Mat. fys. Medd. 29, No. 10 (1955). — This paper is notable for its applications of the spheroidal well nuclear model to alpha decay and for its extension of the concept of “favored” alpha decay groups.

    Google Scholar 

  32. Rasmussen, J. O., S. G. Thompson and A. Ghiorso: Phys. Rev. 89, 33 (1953). —Data on a number of artificial alpha emitters in the rare earth region are presented, and correlations of decay rates with alpha decay theories are attempted.

    Article  ADS  Google Scholar 

  33. Tolhoek, H. A., and P. J. Brussard: Physica, Haag 21, 449 (1955). — This paper presents fresh approaches to alpha decay rate theory. A very strong attractive nuclear potential for alpha particles is proposed. The diffuseness of the nuclear surface and the finite range of nuclear forces are included in the derivation of the alpha particle potential energy function. An overlap integral expression for the probability of formation of an alpha particle from constituent nucleons in nuclear matter is derived.

    Article  ADS  MATH  Google Scholar 

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Perlman, I., Rasmussen, J.O. (1957). Alpha Radioactivity. In: Kernreaktionen III / Nuclear Reactions III. Handbuch der Physik / Encyclopedia of Physics, vol 8 / 42. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-45878-1_2

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