V. Grafen
University of Bonn
11 Papers
13 Citations
V. Grafen is an academic researcher from University of Bonn. The author has contributed to research in topics: Excited state & Ground state. The author has an hindex of 4, co-authored 11 publications.
Chat about Author
Papers
Investigation of224Ra in the226Ra(α, α′ 2n) reaction
M. Marten-Tölle,B. Ackermann,H. Baltzer,T. Bihn,V. Grafen,C. Günther,H. Hausmann,N. Singh,R. Tölle,J. de Boer,N. Gollwitzer +10 more
- 01 Mar 1990
TL;DR: In this article, positive and negative parity bands have been followed up up to 10+ (possibly 12+) and 11− in224Ra and compared to the corresponding bands in the isotone226Th.
49
The nuclear structure of 229Pa from the 231Pa(p,t)229Pa and 230Th(p,2nγ)229Pa reactions
A. I. Levon,J. de Boer,G. Graw,Ralf Hertenberger,D. Hofer,J. Kvasil,A. Lösch,E. Müller-Zanotti,M. Würkner,H. Baltzer,V. Grafen,C. Günther +11 more
TL;DR: In this paper, the level structure of the 229Pa nucleus was investigated by means of the 231Pa(p,t)229Pa and 230Th(p 2nγ) 229Pa reactions and the results of in-beam conversion electron and γ-ray spectroscopy to establish a level scheme.
27
Octupole correlations in 225Th
J. R. Hughes,R. Tölle,J. de Boer,P. A. Butler,C. Günther,V. Grafen,N. Gollwitzer,V Holliday,G. D. Jones,C. Lauterbach,M. Marten-Tölle,S. M. Mullins,R.J. Poynter,Reinhard Simon,N. Singh,Richard Tanner,R. Wadsworth,D. L. Watson,C.A. White +18 more
TL;DR: The nuclear structure of 225Th has been studied using the reaction 226Ra(α, 5n) 225Th at a beam energy of 50 MeV as mentioned in this paper, where in-beam γ-branching ratios have been measured and an average value of |D0/Q0| = (0.51±0.06)×10−3fm−1 has been deduced.
16
In-beam spectroscopy of 231 Pa
J. de Boer,N. Gollwitzer,A. Lösch,H.J. Maier,Harald J. W. Müller,M. Rohn,B. Ackermann,T. Bihn,V. Grafen,C. Günther,M. Marten-Tölle,N. Singh,R. Tölle +12 more
TL;DR: In this article, the results of the rotational model applied to the 1/2−[530] Nilsson state were analyzed in the context of the Coulomb excitation process.
7
Level structure of 217 Rn and 221 Ra investigated in the alpha-decay 225 Th → 221 Ra → 217 Rn
B. Ackermann,T. Bihn,P. A. Butler,V. Grafen,C. Günther,J. R. Hughes,G. D. Jones,C. Lauterbach,H.J. Maier,M. Marten-Tölle,R. Tölle,R. Wadsworth,D. L. Watson,C.A. White +13 more
TL;DR: In this article, the α-decay chain225Th→221Ra →217Rn through γ-ray and conversion-electron studies was investigated, and the short-lived 225Th nuclei (T 1/2=8min) were produced in the226Ra(α, 5n) reaction, and γrays and conversion electrons were measured in coincidence with αparticles.
4