Abstract

Collinear fast-beam-laser and rf-laser double-resonance spectroscopy have been carried out in 235U ii, allowing a detailed study of the hyperfine structure (hfs) of the three low odd configurations 5f3(7S2 + 6d7s + 6d2). Intermediate coupling wave functions, using parametric fitting, have been determined, allowing a parameterization of the hyperfine interaction. Ab initio Dirac–Fock calculations combined with this parameterization of our experimental data have allowed an analysis of the hfs of 235U ii, resulting in a new value for the magnetic-dipole moment μI = −0.38(3) nm and a spin density a7s10 = −2880(75) MHz of the 7s electron.

© 1984 Optical Society of America

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  1. P. Goy, J. M. Raimond, M. Gross, and S. Haroche, Phys. Rev. Lett. 50, 1903–1906 (1983).
    [CrossRef]
  2. R. R. Freeman, R. M. Jobson, J. Boker, and W. E. Cooke, in Laser Spectroscopy VI, H. P. Weber and W. Lvithy, eds. (Springer-Verlag, Berlin, 1983), p. 220.
    [CrossRef]
  3. I. Martinson, Nucl. Instrum. Meth. 202, 1–12 (1982).
    [CrossRef]
  4. J. Blaise, J. F. Wyart, J. G. Conway, and E. F. Worden, Phys. Scr. 22, 224–230 (1980).
    [CrossRef]
  5. O. Poulsen, Nucl. Instrum. Method. 202, 503–509 (1982).
    [CrossRef]
  6. H. Helm, in Physics of Electronic and Atomic Collisions, J. Eichler, ed. (North-Holland, Amsterdam, 1984).
  7. K. Dörschel, H. Hühnermann, E. Knobl, E. Meier, and H. Wagner, Z. Phys. A 302, 359–360 (1981).
    [CrossRef]
  8. E. W. Otten, in Proceedings of the Fourth International Conference on Nuclei Far from Stability, P. G. Hansen and O. B. Nielsen, eds. (CERN 81–09, Geneva, 1981), p. 3.
  9. O. Poulsen, in Atomic Physics 8,I. Lingren, S. Svanberg, and A. Rosén, eds. (Plenum, New York, 1983), p. 485.
    [CrossRef]
  10. H. D. V. Böhm, W. Michaelis, and C. Weitkamp, Opt. Commun. 26, 177–182 (1978).
    [CrossRef]
  11. E. Biemont and N. Grevesse, Phys. Scr. 16, 39–47 (1977).
    [CrossRef]
  12. D. W. Steinhaus, L. R. Radziemski, Jr., R. D. Cowan, J. Blaise, G. Guelachvili, Z. Osman, and J. Vergés, Los Alamos Scientific Laboratory Rep. No. LA-4501, 1971.
  13. B. P. Palmer, R. A. Keller, and R. Engleman, Jr., Los Alamos Scientific Laboratory Rep. No. LA-8251-MS (1980).
  14. L. R. Carlson, J. A. Paisner, E. F. Worden, S. A. Johnson, C. A. May, and R. W. Solarz, J. Opt. Soc. Am. 66, 846–853 (1976).
    [CrossRef]
  15. W. J. Childs, O. Poulsen, and L. S. Goodman, Opt. Lett. 4, 35–37, 63–65 (1979).
    [CrossRef]
  16. J. Blaise and L. J. Radziemski, Jr., J. Opt. Soc. Am. 66, 644–659 (1976).
    [CrossRef]
  17. W. J. Childs, O. Poulsen, L. S. Goodman, and H. Crosswhite, Phys. Rev. A 19, 168–176 (1979).
    [CrossRef]
  18. O. Poulsen, T. Andersen, S. M. Bentzen, and U. Nielsen, Phys. Rev. A 24, 2523–2531 (1981).
    [CrossRef]
  19. J. P. Desclaux, Comp. Phys. Comm. 9, 31–45 (1975); J. P. Desclaux, Atom. Data Nucl. Data Tables 12, 311–406 (1973).
    [CrossRef]
  20. S. L. Kaufman, Opt. Commun. 17, 309–312 (1976).
    [CrossRef]
  21. S. D. Rosner, R. A. Holt, and T. D. Gaily, Phys. Rev. Lett. 35, 785–789 (1975).
    [CrossRef]
  22. U. Kötz, J. Kowalski, R. Neumann, S. Noechte, H. Suhr, K. Winkler, and G. zu Putlitz, Z. Phys. A 300, 25–30 (1981).
    [CrossRef]
  23. J. L. Hall and S. A. Lee, Appl. Phys. Lett. 29, 367–369 (1976).
    [CrossRef]
  24. L. Allen and J. H. Eberly, Optical Resonance and Two-Level Atoms (Interscience, New York, 1975).
  25. P. Lorrain and D. Carson, Electromagnetic Fields and Waves (Freeman, San Francisco, 1970).
  26. H. M. Crosswhite and H. Crosswhite, Lawrence Berkeley Laboratory Rep. No. LBL-16509, 42 (1983).
  27. R. D. Cowan and D. C. Griffin, J. Opt. Soc. Am. 66, 1010–1014 (1976).
    [CrossRef]
  28. C. Schwartz, Phys. Rev. 97, 380–395 (1955).
    [CrossRef]
  29. W. J. Childs, Case Stud. At. Phys. 3, 215–304 (1972).
  30. I. Lindgren and A. Rosen, Case Stud. At. Phys. 4, 93–196 (1974).
  31. R. D. Cowan, Theory of Atomic Structure and Spectra (University of California Press, Berkeley, 1981).
  32. M. A. Preston and R. K. Bhaduri, Structure of the Nucleus (Addison-Wesley, Reading, Mass., 1975).
  33. C. M. Lederer and V. S. Shirley, Tables of Isotopes (Wiley, New York, 1978).
  34. T. Fujita and A. Arima, Nucl. Phys. A254, 513–541 (1975).
  35. L. Armstrong, Theory of Hyperfine Structures of Free Atoms (Wiley-Interscience, New York, 1971).

1984 (1)

H. Helm, in Physics of Electronic and Atomic Collisions, J. Eichler, ed. (North-Holland, Amsterdam, 1984).

1983 (4)

P. Goy, J. M. Raimond, M. Gross, and S. Haroche, Phys. Rev. Lett. 50, 1903–1906 (1983).
[CrossRef]

R. R. Freeman, R. M. Jobson, J. Boker, and W. E. Cooke, in Laser Spectroscopy VI, H. P. Weber and W. Lvithy, eds. (Springer-Verlag, Berlin, 1983), p. 220.
[CrossRef]

O. Poulsen, in Atomic Physics 8,I. Lingren, S. Svanberg, and A. Rosén, eds. (Plenum, New York, 1983), p. 485.
[CrossRef]

H. M. Crosswhite and H. Crosswhite, Lawrence Berkeley Laboratory Rep. No. LBL-16509, 42 (1983).

1982 (2)

O. Poulsen, Nucl. Instrum. Method. 202, 503–509 (1982).
[CrossRef]

I. Martinson, Nucl. Instrum. Meth. 202, 1–12 (1982).
[CrossRef]

1981 (4)

K. Dörschel, H. Hühnermann, E. Knobl, E. Meier, and H. Wagner, Z. Phys. A 302, 359–360 (1981).
[CrossRef]

E. W. Otten, in Proceedings of the Fourth International Conference on Nuclei Far from Stability, P. G. Hansen and O. B. Nielsen, eds. (CERN 81–09, Geneva, 1981), p. 3.

O. Poulsen, T. Andersen, S. M. Bentzen, and U. Nielsen, Phys. Rev. A 24, 2523–2531 (1981).
[CrossRef]

U. Kötz, J. Kowalski, R. Neumann, S. Noechte, H. Suhr, K. Winkler, and G. zu Putlitz, Z. Phys. A 300, 25–30 (1981).
[CrossRef]

1980 (2)

B. P. Palmer, R. A. Keller, and R. Engleman, Jr., Los Alamos Scientific Laboratory Rep. No. LA-8251-MS (1980).

J. Blaise, J. F. Wyart, J. G. Conway, and E. F. Worden, Phys. Scr. 22, 224–230 (1980).
[CrossRef]

1979 (2)

W. J. Childs, O. Poulsen, L. S. Goodman, and H. Crosswhite, Phys. Rev. A 19, 168–176 (1979).
[CrossRef]

W. J. Childs, O. Poulsen, and L. S. Goodman, Opt. Lett. 4, 35–37, 63–65 (1979).
[CrossRef]

1978 (1)

H. D. V. Böhm, W. Michaelis, and C. Weitkamp, Opt. Commun. 26, 177–182 (1978).
[CrossRef]

1977 (1)

E. Biemont and N. Grevesse, Phys. Scr. 16, 39–47 (1977).
[CrossRef]

1976 (5)

1975 (3)

T. Fujita and A. Arima, Nucl. Phys. A254, 513–541 (1975).

S. D. Rosner, R. A. Holt, and T. D. Gaily, Phys. Rev. Lett. 35, 785–789 (1975).
[CrossRef]

J. P. Desclaux, Comp. Phys. Comm. 9, 31–45 (1975); J. P. Desclaux, Atom. Data Nucl. Data Tables 12, 311–406 (1973).
[CrossRef]

1974 (1)

I. Lindgren and A. Rosen, Case Stud. At. Phys. 4, 93–196 (1974).

1972 (1)

W. J. Childs, Case Stud. At. Phys. 3, 215–304 (1972).

1971 (1)

D. W. Steinhaus, L. R. Radziemski, Jr., R. D. Cowan, J. Blaise, G. Guelachvili, Z. Osman, and J. Vergés, Los Alamos Scientific Laboratory Rep. No. LA-4501, 1971.

1955 (1)

C. Schwartz, Phys. Rev. 97, 380–395 (1955).
[CrossRef]

Allen, L.

L. Allen and J. H. Eberly, Optical Resonance and Two-Level Atoms (Interscience, New York, 1975).

Andersen, T.

O. Poulsen, T. Andersen, S. M. Bentzen, and U. Nielsen, Phys. Rev. A 24, 2523–2531 (1981).
[CrossRef]

Arima, A.

T. Fujita and A. Arima, Nucl. Phys. A254, 513–541 (1975).

Armstrong, L.

L. Armstrong, Theory of Hyperfine Structures of Free Atoms (Wiley-Interscience, New York, 1971).

Bentzen, S. M.

O. Poulsen, T. Andersen, S. M. Bentzen, and U. Nielsen, Phys. Rev. A 24, 2523–2531 (1981).
[CrossRef]

Bhaduri, R. K.

M. A. Preston and R. K. Bhaduri, Structure of the Nucleus (Addison-Wesley, Reading, Mass., 1975).

Biemont, E.

E. Biemont and N. Grevesse, Phys. Scr. 16, 39–47 (1977).
[CrossRef]

Blaise, J.

J. Blaise, J. F. Wyart, J. G. Conway, and E. F. Worden, Phys. Scr. 22, 224–230 (1980).
[CrossRef]

J. Blaise and L. J. Radziemski, Jr., J. Opt. Soc. Am. 66, 644–659 (1976).
[CrossRef]

D. W. Steinhaus, L. R. Radziemski, Jr., R. D. Cowan, J. Blaise, G. Guelachvili, Z. Osman, and J. Vergés, Los Alamos Scientific Laboratory Rep. No. LA-4501, 1971.

Böhm, H. D. V.

H. D. V. Böhm, W. Michaelis, and C. Weitkamp, Opt. Commun. 26, 177–182 (1978).
[CrossRef]

Boker, J.

R. R. Freeman, R. M. Jobson, J. Boker, and W. E. Cooke, in Laser Spectroscopy VI, H. P. Weber and W. Lvithy, eds. (Springer-Verlag, Berlin, 1983), p. 220.
[CrossRef]

Carlson, L. R.

Carson, D.

P. Lorrain and D. Carson, Electromagnetic Fields and Waves (Freeman, San Francisco, 1970).

Childs, W. J.

W. J. Childs, O. Poulsen, L. S. Goodman, and H. Crosswhite, Phys. Rev. A 19, 168–176 (1979).
[CrossRef]

W. J. Childs, O. Poulsen, and L. S. Goodman, Opt. Lett. 4, 35–37, 63–65 (1979).
[CrossRef]

W. J. Childs, Case Stud. At. Phys. 3, 215–304 (1972).

Conway, J. G.

J. Blaise, J. F. Wyart, J. G. Conway, and E. F. Worden, Phys. Scr. 22, 224–230 (1980).
[CrossRef]

Cooke, W. E.

R. R. Freeman, R. M. Jobson, J. Boker, and W. E. Cooke, in Laser Spectroscopy VI, H. P. Weber and W. Lvithy, eds. (Springer-Verlag, Berlin, 1983), p. 220.
[CrossRef]

Cowan, R. D.

R. D. Cowan and D. C. Griffin, J. Opt. Soc. Am. 66, 1010–1014 (1976).
[CrossRef]

D. W. Steinhaus, L. R. Radziemski, Jr., R. D. Cowan, J. Blaise, G. Guelachvili, Z. Osman, and J. Vergés, Los Alamos Scientific Laboratory Rep. No. LA-4501, 1971.

R. D. Cowan, Theory of Atomic Structure and Spectra (University of California Press, Berkeley, 1981).

Crosswhite, H.

H. M. Crosswhite and H. Crosswhite, Lawrence Berkeley Laboratory Rep. No. LBL-16509, 42 (1983).

W. J. Childs, O. Poulsen, L. S. Goodman, and H. Crosswhite, Phys. Rev. A 19, 168–176 (1979).
[CrossRef]

Crosswhite, H. M.

H. M. Crosswhite and H. Crosswhite, Lawrence Berkeley Laboratory Rep. No. LBL-16509, 42 (1983).

Desclaux, J. P.

J. P. Desclaux, Comp. Phys. Comm. 9, 31–45 (1975); J. P. Desclaux, Atom. Data Nucl. Data Tables 12, 311–406 (1973).
[CrossRef]

Dörschel, K.

K. Dörschel, H. Hühnermann, E. Knobl, E. Meier, and H. Wagner, Z. Phys. A 302, 359–360 (1981).
[CrossRef]

Eberly, J. H.

L. Allen and J. H. Eberly, Optical Resonance and Two-Level Atoms (Interscience, New York, 1975).

Engleman, R.

B. P. Palmer, R. A. Keller, and R. Engleman, Jr., Los Alamos Scientific Laboratory Rep. No. LA-8251-MS (1980).

Freeman, R. R.

R. R. Freeman, R. M. Jobson, J. Boker, and W. E. Cooke, in Laser Spectroscopy VI, H. P. Weber and W. Lvithy, eds. (Springer-Verlag, Berlin, 1983), p. 220.
[CrossRef]

Fujita, T.

T. Fujita and A. Arima, Nucl. Phys. A254, 513–541 (1975).

Gaily, T. D.

S. D. Rosner, R. A. Holt, and T. D. Gaily, Phys. Rev. Lett. 35, 785–789 (1975).
[CrossRef]

Goodman, L. S.

W. J. Childs, O. Poulsen, and L. S. Goodman, Opt. Lett. 4, 35–37, 63–65 (1979).
[CrossRef]

W. J. Childs, O. Poulsen, L. S. Goodman, and H. Crosswhite, Phys. Rev. A 19, 168–176 (1979).
[CrossRef]

Goy, P.

P. Goy, J. M. Raimond, M. Gross, and S. Haroche, Phys. Rev. Lett. 50, 1903–1906 (1983).
[CrossRef]

Grevesse, N.

E. Biemont and N. Grevesse, Phys. Scr. 16, 39–47 (1977).
[CrossRef]

Griffin, D. C.

Gross, M.

P. Goy, J. M. Raimond, M. Gross, and S. Haroche, Phys. Rev. Lett. 50, 1903–1906 (1983).
[CrossRef]

Guelachvili, G.

D. W. Steinhaus, L. R. Radziemski, Jr., R. D. Cowan, J. Blaise, G. Guelachvili, Z. Osman, and J. Vergés, Los Alamos Scientific Laboratory Rep. No. LA-4501, 1971.

Hall, J. L.

J. L. Hall and S. A. Lee, Appl. Phys. Lett. 29, 367–369 (1976).
[CrossRef]

Haroche, S.

P. Goy, J. M. Raimond, M. Gross, and S. Haroche, Phys. Rev. Lett. 50, 1903–1906 (1983).
[CrossRef]

Helm, H.

H. Helm, in Physics of Electronic and Atomic Collisions, J. Eichler, ed. (North-Holland, Amsterdam, 1984).

Holt, R. A.

S. D. Rosner, R. A. Holt, and T. D. Gaily, Phys. Rev. Lett. 35, 785–789 (1975).
[CrossRef]

Hühnermann, H.

K. Dörschel, H. Hühnermann, E. Knobl, E. Meier, and H. Wagner, Z. Phys. A 302, 359–360 (1981).
[CrossRef]

Jobson, R. M.

R. R. Freeman, R. M. Jobson, J. Boker, and W. E. Cooke, in Laser Spectroscopy VI, H. P. Weber and W. Lvithy, eds. (Springer-Verlag, Berlin, 1983), p. 220.
[CrossRef]

Johnson, S. A.

Kaufman, S. L.

S. L. Kaufman, Opt. Commun. 17, 309–312 (1976).
[CrossRef]

Keller, R. A.

B. P. Palmer, R. A. Keller, and R. Engleman, Jr., Los Alamos Scientific Laboratory Rep. No. LA-8251-MS (1980).

Knobl, E.

K. Dörschel, H. Hühnermann, E. Knobl, E. Meier, and H. Wagner, Z. Phys. A 302, 359–360 (1981).
[CrossRef]

Kötz, U.

U. Kötz, J. Kowalski, R. Neumann, S. Noechte, H. Suhr, K. Winkler, and G. zu Putlitz, Z. Phys. A 300, 25–30 (1981).
[CrossRef]

Kowalski, J.

U. Kötz, J. Kowalski, R. Neumann, S. Noechte, H. Suhr, K. Winkler, and G. zu Putlitz, Z. Phys. A 300, 25–30 (1981).
[CrossRef]

Lederer, C. M.

C. M. Lederer and V. S. Shirley, Tables of Isotopes (Wiley, New York, 1978).

Lee, S. A.

J. L. Hall and S. A. Lee, Appl. Phys. Lett. 29, 367–369 (1976).
[CrossRef]

Lindgren, I.

I. Lindgren and A. Rosen, Case Stud. At. Phys. 4, 93–196 (1974).

Lorrain, P.

P. Lorrain and D. Carson, Electromagnetic Fields and Waves (Freeman, San Francisco, 1970).

Martinson, I.

I. Martinson, Nucl. Instrum. Meth. 202, 1–12 (1982).
[CrossRef]

May, C. A.

Meier, E.

K. Dörschel, H. Hühnermann, E. Knobl, E. Meier, and H. Wagner, Z. Phys. A 302, 359–360 (1981).
[CrossRef]

Michaelis, W.

H. D. V. Böhm, W. Michaelis, and C. Weitkamp, Opt. Commun. 26, 177–182 (1978).
[CrossRef]

Neumann, R.

U. Kötz, J. Kowalski, R. Neumann, S. Noechte, H. Suhr, K. Winkler, and G. zu Putlitz, Z. Phys. A 300, 25–30 (1981).
[CrossRef]

Nielsen, U.

O. Poulsen, T. Andersen, S. M. Bentzen, and U. Nielsen, Phys. Rev. A 24, 2523–2531 (1981).
[CrossRef]

Noechte, S.

U. Kötz, J. Kowalski, R. Neumann, S. Noechte, H. Suhr, K. Winkler, and G. zu Putlitz, Z. Phys. A 300, 25–30 (1981).
[CrossRef]

Osman, Z.

D. W. Steinhaus, L. R. Radziemski, Jr., R. D. Cowan, J. Blaise, G. Guelachvili, Z. Osman, and J. Vergés, Los Alamos Scientific Laboratory Rep. No. LA-4501, 1971.

Otten, E. W.

E. W. Otten, in Proceedings of the Fourth International Conference on Nuclei Far from Stability, P. G. Hansen and O. B. Nielsen, eds. (CERN 81–09, Geneva, 1981), p. 3.

Paisner, J. A.

Palmer, B. P.

B. P. Palmer, R. A. Keller, and R. Engleman, Jr., Los Alamos Scientific Laboratory Rep. No. LA-8251-MS (1980).

Poulsen, O.

O. Poulsen, in Atomic Physics 8,I. Lingren, S. Svanberg, and A. Rosén, eds. (Plenum, New York, 1983), p. 485.
[CrossRef]

O. Poulsen, Nucl. Instrum. Method. 202, 503–509 (1982).
[CrossRef]

O. Poulsen, T. Andersen, S. M. Bentzen, and U. Nielsen, Phys. Rev. A 24, 2523–2531 (1981).
[CrossRef]

W. J. Childs, O. Poulsen, and L. S. Goodman, Opt. Lett. 4, 35–37, 63–65 (1979).
[CrossRef]

W. J. Childs, O. Poulsen, L. S. Goodman, and H. Crosswhite, Phys. Rev. A 19, 168–176 (1979).
[CrossRef]

Preston, M. A.

M. A. Preston and R. K. Bhaduri, Structure of the Nucleus (Addison-Wesley, Reading, Mass., 1975).

Putlitz, G. zu

U. Kötz, J. Kowalski, R. Neumann, S. Noechte, H. Suhr, K. Winkler, and G. zu Putlitz, Z. Phys. A 300, 25–30 (1981).
[CrossRef]

Radziemski,, L. J.

Radziemski,, L. R.

D. W. Steinhaus, L. R. Radziemski, Jr., R. D. Cowan, J. Blaise, G. Guelachvili, Z. Osman, and J. Vergés, Los Alamos Scientific Laboratory Rep. No. LA-4501, 1971.

Raimond, J. M.

P. Goy, J. M. Raimond, M. Gross, and S. Haroche, Phys. Rev. Lett. 50, 1903–1906 (1983).
[CrossRef]

Rosen, A.

I. Lindgren and A. Rosen, Case Stud. At. Phys. 4, 93–196 (1974).

Rosner, S. D.

S. D. Rosner, R. A. Holt, and T. D. Gaily, Phys. Rev. Lett. 35, 785–789 (1975).
[CrossRef]

Schwartz, C.

C. Schwartz, Phys. Rev. 97, 380–395 (1955).
[CrossRef]

Shirley, V. S.

C. M. Lederer and V. S. Shirley, Tables of Isotopes (Wiley, New York, 1978).

Solarz, R. W.

Steinhaus, D. W.

D. W. Steinhaus, L. R. Radziemski, Jr., R. D. Cowan, J. Blaise, G. Guelachvili, Z. Osman, and J. Vergés, Los Alamos Scientific Laboratory Rep. No. LA-4501, 1971.

Suhr, H.

U. Kötz, J. Kowalski, R. Neumann, S. Noechte, H. Suhr, K. Winkler, and G. zu Putlitz, Z. Phys. A 300, 25–30 (1981).
[CrossRef]

Vergés, J.

D. W. Steinhaus, L. R. Radziemski, Jr., R. D. Cowan, J. Blaise, G. Guelachvili, Z. Osman, and J. Vergés, Los Alamos Scientific Laboratory Rep. No. LA-4501, 1971.

Wagner, H.

K. Dörschel, H. Hühnermann, E. Knobl, E. Meier, and H. Wagner, Z. Phys. A 302, 359–360 (1981).
[CrossRef]

Weitkamp, C.

H. D. V. Böhm, W. Michaelis, and C. Weitkamp, Opt. Commun. 26, 177–182 (1978).
[CrossRef]

Winkler, K.

U. Kötz, J. Kowalski, R. Neumann, S. Noechte, H. Suhr, K. Winkler, and G. zu Putlitz, Z. Phys. A 300, 25–30 (1981).
[CrossRef]

Worden, E. F.

Wyart, J. F.

J. Blaise, J. F. Wyart, J. G. Conway, and E. F. Worden, Phys. Scr. 22, 224–230 (1980).
[CrossRef]

Appl. Phys. Lett. (1)

J. L. Hall and S. A. Lee, Appl. Phys. Lett. 29, 367–369 (1976).
[CrossRef]

Case Stud. At. Phys. (2)

W. J. Childs, Case Stud. At. Phys. 3, 215–304 (1972).

I. Lindgren and A. Rosen, Case Stud. At. Phys. 4, 93–196 (1974).

Comp. Phys. Comm. (1)

J. P. Desclaux, Comp. Phys. Comm. 9, 31–45 (1975); J. P. Desclaux, Atom. Data Nucl. Data Tables 12, 311–406 (1973).
[CrossRef]

J. Opt. Soc. Am. (3)

Nucl. Instrum. Meth. (1)

I. Martinson, Nucl. Instrum. Meth. 202, 1–12 (1982).
[CrossRef]

Nucl. Instrum. Method. (1)

O. Poulsen, Nucl. Instrum. Method. 202, 503–509 (1982).
[CrossRef]

Nucl. Phys. (1)

T. Fujita and A. Arima, Nucl. Phys. A254, 513–541 (1975).

Opt. Commun. (2)

S. L. Kaufman, Opt. Commun. 17, 309–312 (1976).
[CrossRef]

H. D. V. Böhm, W. Michaelis, and C. Weitkamp, Opt. Commun. 26, 177–182 (1978).
[CrossRef]

Opt. Lett. (1)

Phys. Rev. (1)

C. Schwartz, Phys. Rev. 97, 380–395 (1955).
[CrossRef]

Phys. Rev. A (2)

W. J. Childs, O. Poulsen, L. S. Goodman, and H. Crosswhite, Phys. Rev. A 19, 168–176 (1979).
[CrossRef]

O. Poulsen, T. Andersen, S. M. Bentzen, and U. Nielsen, Phys. Rev. A 24, 2523–2531 (1981).
[CrossRef]

Phys. Rev. Lett. (2)

S. D. Rosner, R. A. Holt, and T. D. Gaily, Phys. Rev. Lett. 35, 785–789 (1975).
[CrossRef]

P. Goy, J. M. Raimond, M. Gross, and S. Haroche, Phys. Rev. Lett. 50, 1903–1906 (1983).
[CrossRef]

Phys. Scr. (2)

J. Blaise, J. F. Wyart, J. G. Conway, and E. F. Worden, Phys. Scr. 22, 224–230 (1980).
[CrossRef]

E. Biemont and N. Grevesse, Phys. Scr. 16, 39–47 (1977).
[CrossRef]

Z. Phys. A (2)

U. Kötz, J. Kowalski, R. Neumann, S. Noechte, H. Suhr, K. Winkler, and G. zu Putlitz, Z. Phys. A 300, 25–30 (1981).
[CrossRef]

K. Dörschel, H. Hühnermann, E. Knobl, E. Meier, and H. Wagner, Z. Phys. A 302, 359–360 (1981).
[CrossRef]

Other (13)

E. W. Otten, in Proceedings of the Fourth International Conference on Nuclei Far from Stability, P. G. Hansen and O. B. Nielsen, eds. (CERN 81–09, Geneva, 1981), p. 3.

O. Poulsen, in Atomic Physics 8,I. Lingren, S. Svanberg, and A. Rosén, eds. (Plenum, New York, 1983), p. 485.
[CrossRef]

H. Helm, in Physics of Electronic and Atomic Collisions, J. Eichler, ed. (North-Holland, Amsterdam, 1984).

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[CrossRef]

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Figures (6)

Fig. 1
Fig. 1

Fast-beam rf-laser double-resonance spectrometer, consisting of a cw dye ring laser, a wavemeter, and an accelerator. Both rf and optical transitions can be induced. In region A, the pump region, one particular hfs level (F) is optically pumped. In region B, the probe region, the depletion of level F is investigated by LiF. An increased LiF results if rf transitions F ± 1 → F are induced in region C. The collinear geometry is required to pump efficiently (FF′) through long-lived upper levels F′ as well as to ensure a high optical resolution in the pump and probe regions.

Fig. 2
Fig. 2

Velocity-tuned 5790–22 642-cm−1 hfs multiplet in 235U ii. A resolution of 18 MHz is obtained, limited mainly by voltage fluctuations in the accelerator.

Fig. 3
Fig. 3

LiF on the transition F = 7 ↔ F′ = 6 in the hfs multiplet 5790–22 642 cm−1. The voltage VB was adjusted to resonance, whereas VA was varied through resonance.

Fig. 4
Fig. 4

Rf transitions are induced in a 50-Ω coaxial-transmission line (Fig. 1, region C). A μ-metal shield reduces the ambient magnetic field to below 1 mG.

Fig. 5
Fig. 5

The 6–7 hfs transition in the odd 5790-cm−1 level, obtained in rf-laser double-resonance spectroscopy. The solid line is a least-squares adjustment of Eq. (5) to the experimental data. The Rabi-flopping frequency Ωrf ≃ 600 kHz given by Eq. (6) results in power broadening, which is small compared with the transit-time broadening. The interaction time t is fitted to 2.3(1) μsec, corresponding to an effective interaction length of 47.0(1.7) cm at 50-keV beam energy. The physical interaction length is 47.5(0.5) cm.

Fig. 6
Fig. 6

Partial energy-level scheme of U ii, showing the 12 levels (below 8000-cm−1 excitation energy) studied in this work. They belong to the three odd configurations 5f3(7s2 + 6d7s + 6d2). Even parity levels in the range 17 000–26 000 cm−1 have also been studied, but no analysis is given because of the lack of intermediate-coupling eigenfunctions.

Tables (7)

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Table 1 Transition Shifts Energies and Isotope of Absorption Lines from the 12 Levels Studied in 235U iia

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Table 2 Magnetic-Dipole Coupling Constant A and Electric-Quadrupole Constant B in 12 Levels Belonging to the Three Odd Configurations 5f3(7s2 + 6d7s + 6d2) in 235U ii Measured by Collinear Fast-Beam Laser Spectroscopy

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Table 3 Magnetic-Dipole Coupling Constant A and Electric-Quadrupole Coupling Constant B in 12 Excited Levels Measured of Even Parity in 235U ii, by Collinear Fast-Beam Laser Spectroscopy

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Table 4 Hyperfine Intervals for Five Odd Levels in 235U ii Measured by Collinear Fast-Beam Rf-Laser Double-Resonance Spectroscopya

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Table 5 Dirac–Fock19 One-Electron Radial Integrals Fjj and Rjj (a.u.) for 235U ii in the Three Odd Configurations f3 (s2 + ds + d2)

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Table 6 Experimental and Calculated Magnetic-Dipole–Interaction Constants in 235U ii

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Table 7 Experimental and Calculated Electric-Quadrupole-Interaction Constants in 235U ii

Equations (21)

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σ 0 = σ L ± ( 1 + β ) γ ( β ) ,
Ω o p t = 1.425 × 10 - 8 ( w λ 3 A J J ) 1 / 2 × [ ( 2 J + 1 ) ( 2 F > + 1 ) ] 1 / 2 { F F 1 J J I }
P = sin 2 Ω opt t 2
H = H A - μ · H ,
P ( t , Δ ) = Ω rf 2 Ω rf 2 + Δ 2 sin 2 ( Ω rf 2 + Δ 2 ) 1 / 2 t 2 ,
Ω rf = 2 H 0 α J I F M g J μ B J α J I ( F ± 1 ) , M .
β = σ - - σ + σ - + σ + .
ν 0 = ( ν rf - · ν rf + ) 1 / 2 .
δ ν ~ 1 4 Ω opt 2 ( 2 π ) 2 ( ν - ν L ) ~ 100 Hz ,
H hfs = A · I · J + B [ 3 / 4 K ( K + 1 ) - I ( I + 1 ) J ( J + 1 ) 2 I ( 2 I - 1 ) J ( 2 J - 1 ) ] ,
F M I · J F M = K / 2 = ½ [ F ( F + 1 ) - I ( I + 1 ) - J ( J + 1 ) ] .
δ E ( α J L J I F ) = α J L J I F M H hfs α J L J I F M 2 E ( α J L J ) - E ( α J L J ) ,
8276 cm - 1 = - 0.959 4 I - 0.235 2 K +
H hfs rel = k = 1 T n [ k ] T e [ k ]
T e k ( eff ) = k s k l P [ k s k l ] k U [ k s k l ] k ,
F j j = - 2 α a 0 ( κ + κ + 2 ) 0 ( P j Q j + Q j P j ) r - 2 d r ,
R j j = 0 ( P j P j + Q j Q j ) r - 3 d r
A ( Ψ , Ψ ) = i , k s k l C i k s k l a i k s k l ,
A ( 8276 cm - 1 ) = 0.89 a 5 f 01 ( f 3 s 2 ) + 0.03 a 5 f 12 ( f 3 s 2 ) + 0.10 a 5 f 10 ( f 3 s 2 ) + 0.01 a 5 f 01 ( f 3 d s ) +
a 7 s 10 = 4 3 μ B μ n ( μ I I ) · F + + ,
μ I ( U 235 ) = - 0.38 ( 3 ) nm ,             a 7 s 10 = - 2880 ( 75 ) MHz .

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