Observation of the New Nuclides <math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><mrow><mmultiscripts><mrow><mi mathvariant="normal">Ne</mi></mrow><mprescripts></mprescripts><mrow></mrow><mrow><mn>27</mn></mrow><mrow></mrow><mrow></mrow></mmultiscripts></mrow></math>, <math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><mrow><mmultiscripts><mrow><mi mathvariant="normal">Mg</mi></mrow><mprescripts></mprescripts><mrow></mrow><mrow><mn>31</mn></mrow><mrow></mrow><mrow></mrow></mmultiscripts></mrow></math>, <math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><mrow><mmultiscripts><mrow><mi mathvariant="normal">Mg</mi></mrow><mprescripts></mprescripts><mrow></mrow><mrow><mn>32</mn></mrow><mrow></mrow><mrow></mrow></mmultiscripts></mrow></math>, <math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><mrow><mmultiscripts><mrow><mi mathvariant="normal">Al</mi></mrow><mprescripts></mprescripts><mrow></mrow><mrow><mn>34</mn></mrow><mrow></mrow><mrow></mrow></mmultiscripts></mrow></math>, and <math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><mrow><mmultiscripts><mrow><mi mathvariant="normal">P</mi></mrow><mprescripts></mprescripts><mrow></mrow><mrow><mn>39</mn></mrow><mrow></mrow><mrow></mrow></mmultiscripts></mrow></math>

G. W. Butler; D. G. Perry; L. P. Remsberg; A. M. Poskanzer; J. B. Natowitz; F. Plasil

doi:10.1103/PhysRevLett.38.1380

Observation of the New Nuclides ${}^{27}{Ne}$ , ${}^{31}{Mg}$ , ${}^{32}{Mg}$ , ${}^{34}{Al}$ , and ${}^{39}P$

G. W. Butler, D. G. Perry, L. P. Remsberg, A. M. Poskanzer, J. B. Natowitz, and F. Plasil

Phys. Rev. Lett. 38, 1380 – Published 13 June 1977

Abstract

Five new, neutron-rich nuclides, ${}^{27}{Ne}$ , ${}^{31}{Mg}$ , ${}^{32}{Mg}$ , ${}^{34}{Al}$ , and ${}^{39}P$ , have been produced by the bombardment of uranium with 800-MeV protons. A time-of-flight method which utilizes the rf structure of the beam was combined with a $Δ E - E$ measurement to identify the nuclides.