TY - JOUR
T1 - First online multireflection time-of-flight mass measurements of isobar chains produced by fusion-evaporation reactions
T2 - Toward identification of superheavy elements via mass spectroscopy
AU - Schury, P.
AU - Wada, M.
AU - Ito, Y.
AU - Kaji, D.
AU - Arai, F.
AU - MacCormick, M.
AU - Murray, I.
AU - Haba, H.
AU - Jeong, S.
AU - Kimura, S.
AU - Koura, H.
AU - Miyatake, H.
AU - Morimoto, K.
AU - Morita, K.
AU - Ozawa, A.
AU - Rosenbusch, M.
AU - Reponen, M.
AU - Söderström, P. A.
AU - Takamine, A.
AU - Tanaka, T.
AU - Wollnik, H.
N1 - Funding Information:
This work was supported by the Japan Society for the Promotion of Science KAKENHI (Grants No. 2200823, No. 24224008, No. 24740142, No. 15H02096, and No. 15K05116).
Publisher Copyright:
© 2017 American Physical Society.
PY - 2017/1/30
Y1 - 2017/1/30
N2 - Using a multireflection time-of-flight mass spectrograph located after a gas cell coupled with the gas-filled recoil ion separator GARIS-II, the masses of several α-decaying heavy nuclei were directly and precisely measured. The nuclei were produced via fusion-evaporation reactions and separated from projectilelike and targetlike particles using GARIS-II before being stopped in a helium-filled gas cell. Time-of-flight spectra for three isobar chains, Fr204-Rn204-At204-Po204, Fr205-Rn205-At205-Po205-Bi205, and Fr206-Rn206-At206, were observed. Precision atomic mass values were determined for Fr204-206, Rn204,205, and At204,205. Identifications of Bi205, Po204,205, Rn206, and At206 were made with N10 detected ions, representing the next step toward use of mass spectrometry to identify exceedingly low-yield species such as superheavy element ions.
AB - Using a multireflection time-of-flight mass spectrograph located after a gas cell coupled with the gas-filled recoil ion separator GARIS-II, the masses of several α-decaying heavy nuclei were directly and precisely measured. The nuclei were produced via fusion-evaporation reactions and separated from projectilelike and targetlike particles using GARIS-II before being stopped in a helium-filled gas cell. Time-of-flight spectra for three isobar chains, Fr204-Rn204-At204-Po204, Fr205-Rn205-At205-Po205-Bi205, and Fr206-Rn206-At206, were observed. Precision atomic mass values were determined for Fr204-206, Rn204,205, and At204,205. Identifications of Bi205, Po204,205, Rn206, and At206 were made with N10 detected ions, representing the next step toward use of mass spectrometry to identify exceedingly low-yield species such as superheavy element ions.
UR - http://www.scopus.com/inward/record.url?scp=85015639699&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85015639699&partnerID=8YFLogxK
U2 - 10.1103/PhysRevC.95.011305
DO - 10.1103/PhysRevC.95.011305
M3 - Article
AN - SCOPUS:85015639699
SN - 2469-9985
VL - 95
JO - Physical Review C
JF - Physical Review C
IS - 1
M1 - 011305
ER -