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Photonuclear reactions in carbon at energies between 300 MeV and 1000 MeV

Фотоядерные реакции на углероде при знергиях между 300 МзВ и 1000 МзВ

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Il Nuovo Cimento B (1965-1970)

Summary

In the energy range from 300 MeV up to 1000 MeV, cross-sections for the reactions12C(γ, n)11C and12C(γ, x)7Be have been measured using bremsstrahlung beams of the Frascati electronsynchrotron by means of the activation method. The (γ, n) cross-section measured, (1.18 ± 0.20) mb, is in agreement with the predicted from the photomeson model. The12C(γ, x)7Be cross-section found was (8±4) · 10−29 cm2.

Riassunto

Sono state misurate, mediante il metodo dell’attività residua, le sezioni d’urto per le reazioni12C(γ, n)11C e12C(γ, x)7Be nell’intervallo di energie compreso tra 300 e 1000 MeV usando fasci di bremsstrahlung dell’elettrosincrotrone di Frascati. Il valore di (1.18 ± 0.20) mb misurato per la reazione12C(γ, n)11C è in accordo con quello calcolabile dal modello fotomesonico. La sezione d’urto trovata per la reazione12C(γ, x)7Be è pari a (8 ± 4) · 10−29 cm2.

Реэюме

В области знергий от 300 до 1000 МзВ были иэмерены поперечные сечения для реакций12C(γ, n)11C и12C(γ, x)7Ве, испольэуя пучки тормоэного иэлучения от злектросинхротрона Фраскати, посредством метода активации. Иэмеренное поперечное сечение (γ, n), (1.18±0.20) мбарн, согласуется с предскаэанным иэ фотомеэонной модели. Найденное поперечное сечение12C(γ, x)7Ве равно (8±4)·10−29см2.

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References

  1. J. M. Miller andJ. Hudis:Ann. Rev. Nucl. Sci.,9, 159 (1959).

    Article  ADS  Google Scholar 

  2. W. C. Barber, W. D. George andD. D. Reagan:Phys. Rev.,98, 73 (1955).

    Article  ADS  Google Scholar 

  3. A. Masaike:Journ. Phys. Soc. Japan,19, 4, 427 (1964).

    Article  ADS  Google Scholar 

  4. B. M. K. Nefkens, G. Moscati andJ. Todoroff:Contributed Papers to Congr. Internat. de Physique Nucléaire, Paris, July 1964. Unpublished results.

  5. W. M. MacClelland:Phys. Rev.,123, 1423 (1961).

    Article  ADS  Google Scholar 

  6. S. Kikuchi:Phys. Rev.,86, 41 (1952);E. P. George:Proc. Phys. Soc., A69, 110 (1956);V. Z. Peterson andC. E. Roos:Phys. Rev.,105, 1620 (1957);C. Castagnoli, M. Muchnik, G. Ghigo andR. Rinzivillo:Nuovo Cimento,16, 683 (1960);I. Reff:Phys. Rev.,91, 150 (1953).

    Article  ADS  Google Scholar 

  7. R. J. Debs, J. T. Eisinger, A. W. Fairhall, I. Halpern andH. G. Richter:Phys. Rev.,97, 1325 (1955).

    Article  ADS  Google Scholar 

  8. D. Reagan:Phys. Rev.,100, 113 (1955).

    Article  ADS  Google Scholar 

  9. A. N. Gorbunov, F. P. Denisov andV. A. Kolotukhin:Sov. Phys. JETP,11, 783 (1960).

    Google Scholar 

  10. V. di Napoli, F. Dobici, F. Salvetti andH. G. de Carvalho:Nuovo Cimento,42 B, 358 (1966).

    Article  ADS  Google Scholar 

  11. P. Dyal andJ. P. Hummel:Phys. Rev.,127, 2217 (1962).

    Article  ADS  Google Scholar 

  12. L. W. Jones andK. M. Terwilliger:Phys. Rev.,91, 699 (1953).

    Article  ADS  Google Scholar 

  13. G. Bishop, S. Costa, S. Ferroni, R. Malvano andG. Ricco:Nuovo Cimento,42 B, 158 (1966).

    Article  ADS  Google Scholar 

  14. R. R. Wilson:Nucl. Instr. Methods,1, 101 (1957).

    Article  Google Scholar 

  15. R. Gomez, J. Pine andA. Silverman,Nucl. Instr. Methods,24, 429 (1963).

    Article  Google Scholar 

  16. F. Carbonara, H. G. de Carvalho, R. Rinzivillo, E. Sassi andG. P. Murtas:Nucl. Phys.,73, 385 (1965).

    Article  Google Scholar 

  17. J. Miller, C. Schul, G. Tamas andC. Tzara:Phys. Lett.,2, 76 (1962).

    Article  ADS  Google Scholar 

  18. S. C. Fultz, J. T. Caldwell, B. L. Berman, R. L. Bramblett andR. R. Harvey:Phys. Rev.,143, 790 (1966).

    Article  ADS  Google Scholar 

  19. B. C. Cook, J. E. E. Baglin, J. N. Bradford andJ. E. Griffin:Phys. Rev.,143, 724 (1966).

    Article  ADS  Google Scholar 

  20. H. Fuchs andK. Lindenberger:Nucl. Instr. Methods,7, 279 (1960).

    Article  Google Scholar 

  21. J. B. Cumming:Ann. Rev. Nucl. Sci.,13, 261 (1963).

    Article  ADS  Google Scholar 

  22. C. E. Roos andV. Z. Peterson:Phys. Rev.,124, 1610 (1961).

    Article  ADS  Google Scholar 

  23. V. di Napoli, F. Dobici, F. Salvetti andH. G. de Carvalho:Nuovo Cimento,48 B, 1 (1967).

    Article  ADS  Google Scholar 

  24. H. Artus:Zeits. Phys.,189, 355 (1966).

    Article  ADS  Google Scholar 

Download references

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Authors and Affiliations

  1. Laboratorio di Chimica delle Radiazioni e Chimica Nucleare del CNEN, Istituto di Chimica Generale ed Inorganica dell’Università, Roma

    V. di Napoli, F. Dobici, O. Forina & F. Salvetti

  2. Centro Brasileiro de Pesquisas Físicas, Rio de Janeiro

    H. G. de Carvalho

Authors
  1. V. di Napoli
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  2. F. Dobici
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  3. O. Forina
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  4. F. Salvetti
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  5. H. G. de Carvalho
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di Napoli, V., Dobici, F., Forina, O. et al. Photonuclear reactions in carbon at energies between 300 MeV and 1000 MeV. Nuovo Cimento B (1965-1970) 55, 95–106 (1968). https://doi.org/10.1007/BF02711549

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