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Alpha decay of the new isotopes 188,189Po (1999)

Andreyev, A.N. ; Ackermann, D. ; Cagarda, P. ; [weitere]

Springer

The European physical journal 6 (1999), S. 381-385

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Details

ISSN: 1434-601X

Schlagwort(e): PACS:23.60.+e α decay – 27.70.+q 150 ≤ A ≤ 189 – 27.80.+w 190 ≤ A ≤ 219

Quelle: Springer Online Journal Archives 1860-2000

Thema: Physik

Notizen: Abstract. New neutron-deficient isotopes 188,189Po have been produced in the complete fusion reaction of 52Cr ions with a 142Nd target at the velocity filter SHIP. The evaporation residues were separated in-flight and subsequently identified on the basis of α-γ and α-conversion electron coincidence measurements and of α-α position and time correlations. In 189Po a ground state to ground state α decay with Eα1= 7540(20) keV, T1/2= 5(1) ms and two fine structure α-decays at Eα2= 7264(15) keV and Eα3= 7316(15) keV have been observed. In 188Po (T1/2= 400+200 −150μs) a ground state to ground state α decay at Eα= 7915(25) keV and a fine structure α decay at Eα= 7350(40) keV have been found. Improved data on the α-decay of 189Bi were obtained.

Materialart: Digitale Medien

URL: http://dx.doi.org/10.1007/s100500050359

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