Decay of 185Tl, 185m gHg, 189m gPb and energy location of the 13-2 isomeric states in 185Hg, 189Pb, 193Po and 197RnReportar como inadecuado




Decay of 185Tl, 185m gHg, 189m gPb and energy location of the 13-2 isomeric states in 185Hg, 189Pb, 193Po and 197Rn - Descarga este documento en PDF. Documentación en PDF para descargar gratis. Disponible también para leer online.

The European Physical Journal A

, 49:109

First Online: 06 September 2013Received: 17 December 2012Accepted: 11 July 2013

Abstract.

The \ \beta^{{+}} {}\ -EC decay of Tl was studied at the ISOLDE facility, the \ \gamma\ -rays belonging to Hg have been identified and a partial low-spin level scheme of Hg has been built. The decay of Hg was studied at the ISOCELE facility. Conversion electron lines of very low-energy transitions were observed for the first time. Electron data have been obtained for four transitions in Au and two transitions in Hg . From the analysis performed using an internal energy calibration procedure the energy location of the Hg has been determined to be \ E {IS}= 103.74\ keV. This \ E {IS}\ value is consistent with that determined independently, \ E {IS}=9413\ keV, using Hg \ \alpha\ -decay data from literature. New \ \alpha\ particles emitted from Pb have been detected and their origins determined by in-source laser spectroscopy at the ISOLDE facility. \ \alpha\ -\ \gamma\ coincidence results have served to locate the \ 13-2^{+}\ isomeric state of Pb at \ E {IS}=404\ keV. This latter \ E {IS}\ value added to \ \alpha\ -decay data from literature have allowed the energy location of the \ 13-2^{+}\ isomeric states of Po and Rn at 957keV and 19412keV, respectively. The nuclear structure of the isomeric and ground states in the nuclei of the three \ \alpha\ -emitter chains starting with Rn are discussed.

Communicated by J. Äystö

Download to read the full article text



Autor: J. Sauvage - B. Roussière - J. Genevey - S. Franchoo - A. N. Andreyev - N. Barré - A. Ben Braham - C. Bourgeois - J. -

Fuente: https://link.springer.com/







Documentos relacionados