Abstract
Seven Ds{sup 271} decay chains were identified in the bombardment of Pb{sup 208} targets with 311.5 and 314.3 MeV Ni{sup 64} projectiles using the Berkeley Gas-filled Separator. These data, combined with previous results, provide an excitation function for this reaction. From these results, an optimum energy of 321 MeV was estimated for the production of 111{sup 272} in the new reaction Pb{sup 208}(Cu{sup 65},n). One decay chain was observed, resulting in a cross section of 1.7{sub -1.4}{sup +3.9} pb. This experiment confirms the discovery of element 111 by the Darmstadt Group who used the Bi{sup 209}(Ni{sup 64},n)1{sup 272}11 reaction.
Folden, III, C M;
Duellmann, Ch E;
Pang, G K;
Schwantes, J M;
Zielinski, P M;
Nitsche, H;
Hoffman, D C;
[1]
Department of Chemistry, University of California, Berkeley, California 94720 (United States)];
Gregorich, K E;
Mahmud, H;
[1]
Sudowe, R
[2]
- Nuclear Science Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720 (United States)
- Chemical Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720 (United States)
Citation Formats
Folden, III, C M, Duellmann, Ch E, Pang, G K, Schwantes, J M, Zielinski, P M, Nitsche, H, Hoffman, D C, Department of Chemistry, University of California, Berkeley, California 94720 (United States)], Gregorich, K E, Mahmud, H, and Sudowe, R.
Development of an odd-Z-projectile reaction for heavy element synthesis: Pb{sup 208}(Ni{sup 64},n)D{sup 271}s and Pb{sup 208}(Cu{sup 65},n)111{sup 272}.
United States: N. p.,
2004.
Web.
doi:10.1103/PhysRevLett.93.212702.
Folden, III, C M, Duellmann, Ch E, Pang, G K, Schwantes, J M, Zielinski, P M, Nitsche, H, Hoffman, D C, Department of Chemistry, University of California, Berkeley, California 94720 (United States)], Gregorich, K E, Mahmud, H, & Sudowe, R.
Development of an odd-Z-projectile reaction for heavy element synthesis: Pb{sup 208}(Ni{sup 64},n)D{sup 271}s and Pb{sup 208}(Cu{sup 65},n)111{sup 272}.
United States.
https://doi.org/10.1103/PhysRevLett.93.212702
Folden, III, C M, Duellmann, Ch E, Pang, G K, Schwantes, J M, Zielinski, P M, Nitsche, H, Hoffman, D C, Department of Chemistry, University of California, Berkeley, California 94720 (United States)], Gregorich, K E, Mahmud, H, and Sudowe, R.
2004.
"Development of an odd-Z-projectile reaction for heavy element synthesis: Pb{sup 208}(Ni{sup 64},n)D{sup 271}s and Pb{sup 208}(Cu{sup 65},n)111{sup 272}."
United States.
https://doi.org/10.1103/PhysRevLett.93.212702.
@misc{etde_20619362,
title = {Development of an odd-Z-projectile reaction for heavy element synthesis: Pb{sup 208}(Ni{sup 64},n)D{sup 271}s and Pb{sup 208}(Cu{sup 65},n)111{sup 272}}
author = {Folden, III, C M, Duellmann, Ch E, Pang, G K, Schwantes, J M, Zielinski, P M, Nitsche, H, Hoffman, D C, Department of Chemistry, University of California, Berkeley, California 94720 (United States)], Gregorich, K E, Mahmud, H, and Sudowe, R}
abstractNote = {Seven Ds{sup 271} decay chains were identified in the bombardment of Pb{sup 208} targets with 311.5 and 314.3 MeV Ni{sup 64} projectiles using the Berkeley Gas-filled Separator. These data, combined with previous results, provide an excitation function for this reaction. From these results, an optimum energy of 321 MeV was estimated for the production of 111{sup 272} in the new reaction Pb{sup 208}(Cu{sup 65},n). One decay chain was observed, resulting in a cross section of 1.7{sub -1.4}{sup +3.9} pb. This experiment confirms the discovery of element 111 by the Darmstadt Group who used the Bi{sup 209}(Ni{sup 64},n)1{sup 272}11 reaction.}
doi = {10.1103/PhysRevLett.93.212702}
journal = []
issue = {21}
volume = {93}
journal type = {AC}
place = {United States}
year = {2004}
month = {Nov}
}
title = {Development of an odd-Z-projectile reaction for heavy element synthesis: Pb{sup 208}(Ni{sup 64},n)D{sup 271}s and Pb{sup 208}(Cu{sup 65},n)111{sup 272}}
author = {Folden, III, C M, Duellmann, Ch E, Pang, G K, Schwantes, J M, Zielinski, P M, Nitsche, H, Hoffman, D C, Department of Chemistry, University of California, Berkeley, California 94720 (United States)], Gregorich, K E, Mahmud, H, and Sudowe, R}
abstractNote = {Seven Ds{sup 271} decay chains were identified in the bombardment of Pb{sup 208} targets with 311.5 and 314.3 MeV Ni{sup 64} projectiles using the Berkeley Gas-filled Separator. These data, combined with previous results, provide an excitation function for this reaction. From these results, an optimum energy of 321 MeV was estimated for the production of 111{sup 272} in the new reaction Pb{sup 208}(Cu{sup 65},n). One decay chain was observed, resulting in a cross section of 1.7{sub -1.4}{sup +3.9} pb. This experiment confirms the discovery of element 111 by the Darmstadt Group who used the Bi{sup 209}(Ni{sup 64},n)1{sup 272}11 reaction.}
doi = {10.1103/PhysRevLett.93.212702}
journal = []
issue = {21}
volume = {93}
journal type = {AC}
place = {United States}
year = {2004}
month = {Nov}
}