Crystal blocking measurements of the time delay of fission induced by S32, Ti48, and Ni58 bombardment of W

J. U. Andersen; J. Chevallier; J. S. Forster; S. A. Karamian; C. R. Vane; J. R. Beene; A. Galindo-Uribarri; J. Gomez Del Campo; H. F. Krause; E. Padilla-Rodal; D. Radford; C. Broude; F. Malaguti; A. Uguzzoni

doi:10.1103/PhysRevLett.99.162502

Crystal blocking measurements of the time delay of fission induced by S32, Ti48, and Ni58 bombardment of W

J. U. Andersen, J. Chevallier, J. S. Forster, S. A. Karamian, C. R. Vane, J. R. Beene, A. Galindo-Uribarri, J. Gomez Del Campo, H. F. Krause, E. Padilla-Rodal, D. Radford, C. Broude, F. Malaguti, A. Uguzzoni

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Abstract

The time delay in fission induced by bombardment of W with 180MeV S32, 240-255MeV Ti48, and 315-375MeV Ni58 has been measured by observation of crystal blocking. There is a clear narrowing and a small increase in the minimum yield of the angular dips for fission compared with scaled dips for elastically scattered ions. This is interpreted as a fission delay of about 2as, only weakly dependent on energy and atomic number. The delay is longer by 1 to 2orders of magnitude than obtained from standard interpretations of measurements of prescission neutrons and giant-dipole-resonance gamma rays and from calculations of the nuclear dynamics in heavy-ion reactions.

Original language	English
Article number	162502
Journal	Physical Review Letters
Volume	99
Issue number	16
DOIs	https://doi.org/10.1103/PhysRevLett.99.162502
State	Published - Oct 15 2007

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Andersen, J. U., Chevallier, J., Forster, J. S., Karamian, S. A., Vane, C. R., Beene, J. R., Galindo-Uribarri, A., Del Campo, J. G., Krause, H. F., Padilla-Rodal, E., Radford, D., Broude, C., Malaguti, F., & Uguzzoni, A. (2007). Crystal blocking measurements of the time delay of fission induced by S32, Ti48, and Ni58 bombardment of W. Physical Review Letters, 99(16), Article 162502. https://doi.org/10.1103/PhysRevLett.99.162502

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title = "Crystal blocking measurements of the time delay of fission induced by S32, Ti48, and Ni58 bombardment of W",

abstract = "The time delay in fission induced by bombardment of W with 180MeV S32, 240-255MeV Ti48, and 315-375MeV Ni58 has been measured by observation of crystal blocking. There is a clear narrowing and a small increase in the minimum yield of the angular dips for fission compared with scaled dips for elastically scattered ions. This is interpreted as a fission delay of about 2as, only weakly dependent on energy and atomic number. The delay is longer by 1 to 2orders of magnitude than obtained from standard interpretations of measurements of prescission neutrons and giant-dipole-resonance gamma rays and from calculations of the nuclear dynamics in heavy-ion reactions.",

author = "Andersen, {J. U.} and J. Chevallier and Forster, {J. S.} and Karamian, {S. A.} and Vane, {C. R.} and Beene, {J. R.} and A. Galindo-Uribarri and {Del Campo}, {J. Gomez} and Krause, {H. F.} and E. Padilla-Rodal and D. Radford and C. Broude and F. Malaguti and A. Uguzzoni",

year = "2007",

month = oct,

day = "15",

doi = "10.1103/PhysRevLett.99.162502",

language = "English",

volume = "99",

journal = "Physical Review Letters",

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Andersen, JU, Chevallier, J, Forster, JS, Karamian, SA, Vane, CR, Beene, JR, Galindo-Uribarri, A, Del Campo, JG, Krause, HF, Padilla-Rodal, E, Radford, D, Broude, C, Malaguti, F & Uguzzoni, A 2007, 'Crystal blocking measurements of the time delay of fission induced by S32, Ti48, and Ni58 bombardment of W', Physical Review Letters, vol. 99, no. 16, 162502. https://doi.org/10.1103/PhysRevLett.99.162502

TY - JOUR

T1 - Crystal blocking measurements of the time delay of fission induced by S32, Ti48, and Ni58 bombardment of W

AU - Andersen, J. U.

AU - Chevallier, J.

AU - Forster, J. S.

AU - Karamian, S. A.

AU - Vane, C. R.

AU - Beene, J. R.

AU - Galindo-Uribarri, A.

AU - Del Campo, J. Gomez

AU - Krause, H. F.

AU - Padilla-Rodal, E.

AU - Radford, D.

AU - Broude, C.

AU - Malaguti, F.

AU - Uguzzoni, A.

PY - 2007/10/15

Y1 - 2007/10/15

N2 - The time delay in fission induced by bombardment of W with 180MeV S32, 240-255MeV Ti48, and 315-375MeV Ni58 has been measured by observation of crystal blocking. There is a clear narrowing and a small increase in the minimum yield of the angular dips for fission compared with scaled dips for elastically scattered ions. This is interpreted as a fission delay of about 2as, only weakly dependent on energy and atomic number. The delay is longer by 1 to 2orders of magnitude than obtained from standard interpretations of measurements of prescission neutrons and giant-dipole-resonance gamma rays and from calculations of the nuclear dynamics in heavy-ion reactions.

AB - The time delay in fission induced by bombardment of W with 180MeV S32, 240-255MeV Ti48, and 315-375MeV Ni58 has been measured by observation of crystal blocking. There is a clear narrowing and a small increase in the minimum yield of the angular dips for fission compared with scaled dips for elastically scattered ions. This is interpreted as a fission delay of about 2as, only weakly dependent on energy and atomic number. The delay is longer by 1 to 2orders of magnitude than obtained from standard interpretations of measurements of prescission neutrons and giant-dipole-resonance gamma rays and from calculations of the nuclear dynamics in heavy-ion reactions.

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DO - 10.1103/PhysRevLett.99.162502

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JO - Physical Review Letters

JF - Physical Review Letters

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ER -

Crystal blocking measurements of the time delay of fission induced by S32, Ti48, and Ni58 bombardment of W

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