The New Superheavy Nuclide 271Hs (Phys. Rev. Letters, 100, 132503 (2008); Link to the APS Website)
Hassium-Experiment
CALLISTO - 26Mg(248Cm, 4-5n)269,270Hs
October 18 - November 10, 2002
Photo: A. Zschau / G. Otto / GSI
People during beamtime
...
Video by Dr. N. Wiehl / Institut für Kernchemie, Univ.
of Mainz
(
wmv-file;
zip-file;
ca.
19 MB; 3:46 min )
Photos of CALLISTO 2002
CALLISTO-Site by André von Zweidorf
Hassium -
Experiment IVO - COLD/CTS
- 26Mg(248Cm, 4-5n)269,270Hs
April
28 - May 17, 2001
Please, click at the
institutes !
More Photos here !
Press releases may 2001:
"Element
hassium becomes heaviest element to have its chemistry studied"
-
GSI
(german);
-
PSI
(german);
-
LBNL
Articles
J. Dvorak, W. Brüchle, Ch. E. Düllmann, Z.
Dvorakova, K. Eberhardt, R. Eichler, E. Jäger, Y. Nagame, Z. Qin, M. Schädel, B.
Schausten, E. Schimpf, R. Schuber, A. Semchenkov, P. Thörle, A. Türler, M.
Wegrzecki and A. Yakushev
Cross section limits for the 248Cm(25Mg,
4n–5n)268,269Hs reactions
Phys.
Rev. C79, 037602 (2009)
I. Dragojević, K. E.
Gregorich, Ch. E. Düllmann, J. Dvorak, P.A. Ellison, J.M. Gates, S.L.
Nelson, L. Stavsetra and H. Nitsche
New isotope 263Hs
Phys. Rev. C 79, 011602(R) (2009)
J. Dvorak, W. Brüchle, M.
Chelnokov, Ch. E. Düllmann, Z. Dvorakova, K. Eberhardt, E. Jäger, R. Krücken, A.
Kuznetsov, Y. Nagame, F. Nebel, K. Nishio, R. Perego, Z. Qin, M. Schädel, B.
Schausten, E. Schimpf, R. Schuber, A. Semchenkov, P. Thörle, A. Türler, M.
Wegrzecki, B. Wierczinski, A. Yakushev, and A. Yeremin
Observation of the 3n Evaporation Channel in the Complete Hot-Fusion Reaction
26Mg + 248Cm Leading to the New Superheavy Nuclide
271Hs
Phys. Rev. Lett.
100,
132503 (2008)
J. Dvorak, W. Brüchle, M. Chelnokov, R. Dressler, Ch. E. Düllmann,
K. Eberhardt, V. Gorshkov, E. Jäger, R. Krücken, A. Kuznetsov, Y. Nagame, F. Nebel, Z. Novackova, Z. Qin, M. Schädel, B. Schausten, E. Schimpf, A. Semchenkov, P. Thörle, A. Türler, M. Wegrzecki, B. Wierczinski, A. Yakushev, and A. YereminDoubly Magic Nucleus 270108Hs162
Phys. Rev. Lett. 97, 242501 (2006)
H.W. Gäggeler, W. Brüchle,
Ch.E. Düllmann, R. Dressler, K. Eberhardt, B. Eichler, R. Eichler, C.M. Folden,
T.N. Ginter, F. Glaus, K.E. Gregorich, F. Haenssler, D.C. Hoffman, E. Jäger, D.T.
Jost, U.W. Kirbach, J.V. Kratz, H. Nitsche, J.B. Patin, V. Pershina, D. Piguet,
Z. Qin, U.Rieth, M. Schadel, E. Schimpf, B. Schausten, S. Soverna, R. Sudowe, P.
Thorle, N. Trautmann, A. Türler, A. Vahle, P.A. Wilk, G. Wirth, A.B. Yakushev,
A. von Zweidorf
Chemical and nuclear studies of hassium and element 112
Nucl. Phys. A, 734, 208 (2004)
A.
von Zweidorf, R. Angert,
W. Brüchle, S. Bürger,
K. Eberhardt, R. Eichler,
H. Hummrich, E. Jäger, H.O. Kling, J.V. Kratz, B. Kuczewski, G. Langrock, M.
Mendel, U. Rieth,
M. Schädel,
B. Schausten, E. Schimpf, P. Thörle, N.
Trautmann, K. Tsukada, N. Wiehl,
G. Wirth
Evidence for the
formation of sodium hassate(VIII)
(pdf-file;
577 kb)
Radiochim.
Acta 92, 855 (2004)
Ch.E. Düllmann, W. Brüchle,
R. Dressler, K. Eberhardt, B. Eichler, R. Eichler, H. W. Gäggeler, T.N. Ginter,
F. Glaus, K.E. Gregorich, D. C. Hoffman, E. Jäger, D.T. Jost, U.W. Kirbach,
D.M. Lee, H. Nitsche, J.B. Patin, V. Pershina, D. Piquet,
Z. Qin, M. Schädel,
B. Schausten, E. Schimpf, H.-J. Schött, S. Soverna, R. Sudowe, P. Thörle, S.N.
Timokhin, N. Trautrmann, A. Türler, A. Vahle, G. Wirth, A.B. Yakushev, P.M.
Zielinski
Chemical investigation of hassium (element 108)
Nature
418, 859 (2002)
E. Johnson,
B. Fricke, J. Jacob, C. Z. Dong, S. Fritsche and V. Pershina
Ionization
Potentials and Radii of Neutral and Ionized Species of Elements 107 and 108 from
Extended MCDF Calculations
J. Chem. Phys. 116, 1862 (2002)
V.
Pershina, V. T. Bastug, J.V. Kratz
Quantum
Chemical Predictions of Properties and Experimental Behaviour of Elements 106,
107 and 108
Radiochim.
Acta 89, 729 (2001)
V.
Pershina, T. Bastug, B. Fricke, S. Varga
The Electronic Structure and Properties of Group 8 Oxides Mo4
, where M=Ru, Os and Element 108, Hs
J. Chem. Phys.
115 792 (2001)
Lectures
Decay of 269Hs and Evidence
for the N = 162 Nuclide 270Hs (pdf-file;
1.4 MB)
M. Schädel (GSI)
DPG Frühjahrstagung, Tübingen, March 17 - 21, 2003
Chemistry
and Physics of the Heaviest Elements (pdf-file;
4 MB)
A. Türler (Institut für Radiochemie,
TU München, Garching)
GSI Colloquium, June 18, 2002
Wie das Element der Hessen den Weg in das
Periodensystem gefunden hat (pdf-file;
2 MB)
M. Schädel (GSI)
Wissenschaft für Alle, GSI, June 12, 2002
(in german)
Annual Reports
GSI Annual Reports 2007
The new isotope 271Hs observed in the reaction 26Mg(248Cm,3n)
reaction
J. Dvorak, Z. Dvorakova, R. Krücken, F. Nebel, R. Perego, R. Schuber, A.
Semchenkov, A. Türler, B. Wierczinski, A. Yakushev, W. Brüchle, C. E. Düllmann,
E. Jäger, M. Schädel, B. Schausten, E. Schimpf, M. Chelnokov, V. Gorshkov, A.
Kuznetsov, A. Yeremin, K. Eberhardt, P. Thörle, Y. Nagame, K. Nishio, Z. Qin, M.
Wegrzecki
Cross Section Measurements of the Reaction 26Mg(248Cm,xn)
274-xHs
J. Dvorak, R. Krücken, F. Nebel, Z. Novackova, A. Semchenkov, A. Türler, B. Wierczinski,
A. Yakushev, W. Brüchle, E. Jäger, M. Schädel, B. Schausten, E. Schimpf, M. Chelnokov,
V. Gorshkov, A. Kuznetsov, A. Yeremin, R. Dressler, C. E. Düllmann,
K. Eberhardt, P. Thörle, Y. Nagame, Z. Qin, M. Wegrzecki
Adsorption Behaviour of HsO4
A. Yakushev, J. Dvorak, Z. Dvorakova, R. Krücken, F. Nebel, R. Perego, R.
Schuber, A. Semchenkov, A. Türler, B. Wierczinski, W. Brüchle, C. E. Düllmann,
E. Jäger, V. Pershina, M. Schädel, B. Schausten, E. Schimpf, M. Chelnokov, V.
Gorshkov, A. Kuznetsov, A. Yeremin, K. Eberhardt, P. Thörle, Y. Nagame, K.
Nishio, Z. Qin, M. Wegrzecki
Spin-Polarized 4c-DFT Calculations of the Electronic Structures and Properties
of MO4 (M=Ru, Os, and Hs) and Prediction of Physisorption
V. Pershina, J. Anton
GSI Annual Reports 2006
Doubly magic 270Hs
J. Dvorak, R. Krücken, F. Nebel, Z. Novackova, A. Semchenkov, A. Türler, B. Wierczinski,
A. Yakushev, W. Brüchle, E. Jäger, M. Schädel, B. Schausten, E. Schimpf, M. Chelnokov,
V. Gorshkov, A. Kuznetsov, A. Yeremin, R. Dressler, C. E. Düllmann,
K. Eberhardt, P. Thörle, Y. Nagame, Z. Qin, M. Wegrzecki
Radiochemical search for 268Hs
with COMPACT
J. Dvorak, R. Krücken, Z. Novackova, R. Schuber, A. Semchenkov, A. Türler,
A. Yakushev, W. Brüchle, C.E. Düllmann, E. Jäger, M. Schädel, B. Schausten,
E. Schimpf, Z. Qin, R. Dressler, A. Kuznetsov, M. Chelnokov, K. Eberhardt, P. Thörle,
Y. Nagame
GSI Annual Reports 2004
On the production and chemical separation of Hs (element 108)
Dvorak, J.; Krücken, R.; Nebel, F.; Novackova, Z.; Türler, A.; Wierczinski,
B.; Yakushev, A.; Brüchle, W.; Jäger, E.; Schimpf, E.; Schädel, M.; Semchenkov,
A.; Kuznetsov, A.; Chelnokov, M.; Yeremin, A.; Düllmann, C. E.; Nagame, Y.;
Eberhardt, K.; Thörle, P.; Dressler, R.; Qin, Z.; Wegrzecki, M.
Theoretical Investigations of the Reactivity of MO4 and the
Electronic Structure of Na2[MO4(OH)2], where M
= Ru, Os, and Hs (element 108)
Pershina, V.; Kratz, J. V.
New results on synthesis of Hs isotopes
Dvorak, J.; Krücken, R.; Nebel, F.; Novackova, Z.; Türler, A.; Wierczinski,
B.; Yakushev, A.; Brüchle, W.; Jäger, E.; Schimpf, E.; Schädel, M.; Semchenkov,
A.; Kuznetsov, A.; Chelnokov, M.; Yeremin, A.; Düllmann, C. E.; Nagame, Y.;
Eberhardt, K.; Thörle, P.; Dressler, R.; Qin, Z.; Wegrzecki, M.
GSI Annual Reports 2003
Relativistic Effects on the Electronic Structure and Volatility
of Group-8 tetroxides MO4, where M = Ru, Os and Element 108, Hs
V. Pershina, T. Bastug, B. Fricke
Final result of the CALLISTO-experiment: Formation of sodium
hassate(VIII)
A. von Zweidorf, R. Angert, W. Brüchle, S. Bürger, K.
Eberhardt, R. Eichler, H. Hummrich, E. Jäger, R. Jera, H.-O. Kling, J.V. Kratz,
U. Krille, B. Kuczewski, G. Langrock, G. Lehr, M. Mendel, A. Nähler, A. Peil, V.
Pershina, U. Rieth, M. Schädel, B. Schausten, E. Schimpf, H.-J. Schött, E.
Stiel, P. Thörle, N. Trautmann, K. Tsukada, N. Wiehl, G. Wirth
GSI Annual Reports 2002
First
results of the CALLISTO-experiment: Evidence for the formation of a
hassate(VIII)
A. von Zweidorf, R. Angert, W. Brüchle, S. Bürger,
K. Eberhardt, R. Eichler, H. Hummrich, E. Jäger, R. Jera, H.-O. Kling, J.V.
Kratz, U. Krille, B. Kuczewski, G. Langrock, G. Lehr, M. Mendel, A. Nähler, A.
Peil, V. Pershina, U. Rieth, M. Schädel, B. Schausten, E. Schimpf, H.-J. Schött,
E. Stiel, P. Thörle, N. Trautmann, K. Tsukada, N. Wiehl, G. Wirth
CALLISTO
- an improved setup for the chemical investigation of hassium tetroxide
A. von Zweidorf, R. Angert, W. Brüchle, S. Bürger, K. Eberhardt, R.
Eichler, H. Hummrich, E. Jäger, R. Jera, H.-O. Kling, J.V. Kratz, U. Krille, B.
Kuczewski, G. Langrock, G. Lehr, M. Mendel, A. Nähler, A. Peil, V. Pershina, U.
Rieth, M. Schädel, B. Schausten, E. Schimpf, H.-J. Schött, E. Stiel, P. Thörle,
K. Tsukada, N. Wiehl, G. Wirth
Influence
of water on the deposition of osmium tetroxide on alkaline surfaces
A. von Zweidorf, R. Angert, W. Brüchle, R. Eichler, E. Jäger, J.V. Kratz,
G. Langrock, M. Mendel, M. Schädel, B. Schausten, E. Schimpf, P. Thörle, G.
Wirth
GSI Annual Reports 2001
Deposition
of osmium tetroxide on reactive surfaces
A. von Zweidorf, R. Angert, W. Brüchle, E. Jäger, J.V. Kratz, G. Langrock,
M. Mendel, A. Nähler, M. Schädel, B. Schausten, E. Schimpf, E. Stiel, N.
Trautmann, G. Wirth
Chemical
investigation of hassium (Hs, Z=108)
Ch.E. Düllmann, H.W. Gäggeler, S. Soverna, A. Türler, R. Dressler, B.
Eichler, F. Glaus, D.T. Jost, D. Piguet, T.N. Ginter, K.E. Gregorich, U. Kirbach,
D.M. Lee, R. Sudowe, D.C. Hoffman, H. Nitsche, J.B. Patin, P. Zielinski, W. Brüchle,
R. Eichler, E. Jäger, V. Pershina, M. Schädel, B. Schausten, E. Schimpf, H.-J.
Schött, G. Wirth, S.N. Timokhin, A.B. Yakushev, K. Eberhardt, P. Thörle, N.
Trautmann, Z. Qin, A. Vahle
Decay
properties of 269Hs and evidence for the new nuclide 270Hs
A. Türler, Ch.E. Düllmann, H.W. Gäggeler, S. Soverna, R. Dressler, B.
Eichler, F. Glaus, D.T. Jost, D. Piguet, T.N. Ginter, K.E. Gregorich, U. Kirbach,
D.M. Lee, R. Sudowe, D.C. Hoffman, H. Nitsche, J.B. Patin, P. Zielinski, W. Brüchle,
R. Eichler, E. Jäger, V. Pershina, M. Schädel, B. Schausten, E. Schimpf, H.-J.
Schött, G. Wirth, S.N. Timokhin, A.B. Yakushev, K. Eberhardt, P. Thörle, N.
Trautmann, Z. Qin, A. Vahle
GSI Annual Reports 2000
Deposition
and detection of volatile oxides on metallic surfaces with CALLISTO
A.v.Zweidorf, R.Angert, W.Brüchle, E.Jäger, J.V.Kratz, G.Langrock,
M.Mendel, A.Nähler, M.Schädel, B.Schausten, E.Schimpf, E.Stiel, N.Trautmann,
G.Wirth
Electronic
Structure and Volatility of Group 8 Oxides MO4, where M is Ru, Os, and Element
108, Hs
V. Pershina, T. Bastug, B. Fricke, S. Varga
Ionization
potentials of neutral and Ionized species of elements 107 and 108 from extended
MCDF calculations
T.Jacob, T.Inghoff, B.Fricke, S.Fritzsche, E.Johnson, V.Pershina
