UNISOR on-line nuclear orientation facility (UNISOR/NOF)

The UNISOR on-line nuclear orientation facility (UNISOR/NOF) consists of a3He-4He dilution refrigerator on line to the isotope separator. Nuclei are implanted directly into a target foil which is soldered to the bottom accessed cold finger of the refrigerator. A 1.5 T superconducting magnet polarizes the ferromagnetic target foils and determines the axis of symmetry. Up to eight gamma detectors can be positioned around the refrigerator, each 9 cm from the target. A unique feature of this system is that the k=4 term in the directional distribution function can be directly and unambigously deduced so that a single solution for the mixing ratio can be found. The first on-line experiment at this facility reported here was a study of the decay of the191Hg and193Hg isotopes. © 1998 J.C. Baltzer A.G., Scientific Publishing Company

Shape coexistence in Hg190

Levels in Hg190 were studied by radioactive decay of isotopically separated Tl190. A new band was observed with spin parity (energy, keV) of 0+(1279), 2+(1571), 4+(1975), and 6+(2510). Electric monopole transitions were observed between this band and the ground-state band. Relative B(E2) values for intraband transitions in the new band were found to be 200 times those for interband transitions. Systematics of shape coexistence in the light Hg isotopes and their possible relevance to recent observations of superdeformation in these nuclei are discussed. © 1991 The American Physical Society

Insularity and Empire in the Late Nineteenth Century

'We are fish' observed Lord Salisbury of Britain's global interests at the height of the 19th century pax Britannica. Yet the relationship between the sea and Britain's empire during the Victorian era has rarely been treated in a single volume. The essays in this book do just that. Through a series of case-studies these cutting edge contributions survey the work of the Royal Navy as the policeman of imperial interests: combating piracy and the slave trade. In examining the battle for technological supremacy at sea, the role of the large shipping companies in emigration and migration, and the shipping of British culture overseas via the circulation of knowledge and artefacts, this volume gives an insight into the Victorians' understanding of their own destiny as a sea-faring island