Your browser doesn't support javascript.
loading
First Direct Measurements of Superheavy-Element Mass Numbers.
Gates, J M; Pang, G K; Pore, J L; Gregorich, K E; Kwarsick, J T; Savard, G; Esker, N E; Kireeff Covo, M; Mogannam, M J; Batchelder, J C; Bleuel, D L; Clark, R M; Crawford, H L; Fallon, P; Hubbard, K K; Hurst, A M; Kolaja, I T; Macchiavelli, A O; Morse, C; Orford, R; Phair, L; Stoyer, M A.
Afiliação
  • Gates JM; Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA.
  • Pang GK; Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA.
  • Pore JL; Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA.
  • Gregorich KE; Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA.
  • Kwarsick JT; Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA.
  • Savard G; University of California, Berkeley, California 94720, USA.
  • Esker NE; Argonne National Laboratory, Argonne, Illinois 60439, USA.
  • Kireeff Covo M; University of Chicago, Chicago, Illinois 60637, USA.
  • Mogannam MJ; TRIUMF, Vancouver, British Columbia V6T 2A3, Canada.
  • Batchelder JC; Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA.
  • Bleuel DL; Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA.
  • Clark RM; University of California, Berkeley, California 94720, USA.
  • Crawford HL; Lawrence Livermore National Laboratory, Livermore, California 94550, USA.
  • Fallon P; Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA.
  • Hubbard KK; Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA.
  • Hurst AM; Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA.
  • Kolaja IT; Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA.
  • Macchiavelli AO; University of California, Berkeley, California 94720, USA.
  • Morse C; University of California, Berkeley, California 94720, USA.
  • Orford R; University of California, Berkeley, California 94720, USA.
  • Phair L; Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA.
  • Stoyer MA; Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA.
Phys Rev Lett ; 121(22): 222501, 2018 Nov 30.
Article em En | MEDLINE | ID: mdl-30547624
ABSTRACT
An experiment was performed at Lawrence Berkeley National Laboratory's 88-in. Cyclotron to determine the mass number of a superheavy element. The measurement resulted in the observation of two α-decay chains, produced via the ^{243}Am(^{48}Ca,xn)^{291-x}Mc reaction, that were separated by mass-to-charge ratio (A/q) and identified by the combined BGS+FIONA apparatus. One event occurred at A/q=284 and was assigned to ^{284}Nh (Z=113), the α-decay daughter of ^{288}Mc (Z=115), while the second occurred at A/q=288 and was assigned to ^{288}Mc. This experiment represents the first direct measurements of the mass numbers of superheavy elements, confirming previous (indirect) mass-number assignments.
Texto completo
Imprimir
XML
PubMed Links
Buscar no Google

Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Idioma: En Revista: Phys Rev Lett Ano de publicação: 2018 Tipo de documento: Article País de afiliação: Estados Unidos
Texto completo
Imprimir
XML
PubMed Links
Buscar no Google

Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Idioma: En Revista: Phys Rev Lett Ano de publicação: 2018 Tipo de documento: Article País de afiliação: Estados Unidos