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This work details an application of collinear resonance ionization spectroscopy for the separation of short-lived isomeric states and their subsequent study with decay spectroscopy. It reports the successful construction of a novel decay spectroscopy apparatus that can operate at pressures below 1 x 10^-9 mbar. The method is demonstrated by separating the nuclear ground and isomeric states of 204Fr and performing alpha-decay spectroscopy. An equivalent mass spectrometer would require 4.6 million times as much resolution to achieve the same result. This work unambiguously confirms the existence of a second isomeric state in 204Fr. The author also demonstrates the effectiveness of this method for laser spectroscopy and identification of hyperfine-structure components with energy tagging. This method was successfully used in 202Fr to identify ground and isomeric states. The measurement of 202Fr reported in this thesis demonstrates a factor of 100 improvement in sensitivity compared to state-of-the-art fluorescence techniques. The work reported in this thesis won the author the IOP Nuclear Physics Group Early Career Prize.

Physics. --- Nuclear Physics, Heavy Ions, Hadrons. --- Spectroscopy and Microscopy. --- Nuclear physics. --- Physique --- Physique nucléaire --- Heavy ions. --- Plasma spectroscopy. --- Spectrum analysis. --- Thorium -- Spectra. --- Physics --- Physical Sciences & Mathematics --- Electricity & Magnetism --- Nuclear Physics --- Laser spectroscopy. --- Hadrons. --- Spectroscopy. --- Microscopy. --- Spectrum analysis --- Atomic nuclei --- Atoms, Nuclei of --- Nucleus of the atom --- Analysis, Microscopic --- Light microscopy --- Micrographic analysis --- Microscope and microscopy --- Microscopic analysis --- Optical microscopy --- Optics --- Analysis, Spectrum --- Spectra --- Spectrochemical analysis --- Spectrochemistry --- Spectrometry --- Spectroscopy --- Chemistry, Analytic --- Interferometry --- Radiation --- Wave-motion, Theory of --- Absorption spectra --- Light --- Spectroscope --- Ions --- Qualitative --- Analytical chemistry

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A new take on Afrofuturism, this book gathers together a range of contemporary voices who, carrying legacies of 500 years of contact between Africa, Europe, and the Americas, reach towards the stars and unknown planets, galaxies, and ways of being. Writing from queer and feminist perspectives and circumnavigating continents, they recalibrate definitions of Afrofuturism. The editors and contributors of this exciting volume thus reflect upon the re-emergence of Black visions of political and cultural futures, proposing practices, identities, and collectivities. With contributions from AfroFuturist Affair, John Akomfrah, Jamika Ajalon, Stefanie Alisch, Jim Chuchu, Grisha Coleman, Thomas F. DeFrantz, Abigail DeVille, M. Asli Dukan with Wildseeds, Kodwo Eshun, Anna Everett, Raimi Gbadamosi, Alexis Pauline Gumbs, Milumbe Haimbe, Ayesha Hameed, Kiluanji Kia Henda, Kara Keeling, Carla J. Maier, Tobias Nagl, Tavia Nyongo, Rasheedah Phillips, Daniel Kojo Schrade, Nadine Siegert, Robyn Smith, Greg Tate and Frohawk Two Feathers. »Für die Forschung zum Afrofuturismus stellt der Band ein repräsentatives und in der Zukunft sicher unerlässliches Referenzwerk dar.« Mark Schmitt, MEDIENwissenschaft, 4 (2020) Besprochen in: Zeitschrift für Medienwissenschaft, 22/1 (2020), Vera Mader www.centrum3.at, 6 (2020)

Science --- Science education --- Scientific education --- Study and teaching. --- Africa. --- African Art. --- African Science Fiction. --- Art. --- Cultural Studies. --- Diaspora. --- Gender Studies. --- Gender. --- Postcolonialism. --- Time. --- African American art --- African American art. --- African Americans --- African diaspora. --- Afrofuturism. --- American literature --- Art, African --- Art, African. --- Civilization. --- Postcolonialism --- Science fiction, African --- Science fiction, African. --- Science fiction, American --- Science fiction, American. --- History and criticism. --- Social conditions. --- African American authors --- African American authors. --- Africa --- Afrofuturism; African Science Fiction; Time; Art; Diaspora; Postcolonialism; Gender; Gender Studies; African Art; Africa; Cultural Studies --- Eastern Hemisphere