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| Molybdenum-100 | |
|---|---|
| Name | Molybdenum-100 |
| Mass number | 100 |
| Atomic number | 42 |
| Natural abundance | 9.63% |
| Half life | Stable isotope (observational limits for double beta decay) |
Molybdenum-100
Molybdenum-100 is an isotope of the element with atomic number 42 noted for its role in nuclear physics, radiochemistry, and isotope production. It appears in discussions involving Enrico Fermi, Ettore Majorana, Wolfgang Pauli, Lise Meitner, Otto Hahn and institutions such as the CERN, Brookhaven National Laboratory, Lawrence Berkeley National Laboratory, Los Alamos National Laboratory, and Oak Ridge National Laboratory. Researchers at universities like Massachusetts Institute of Technology, Stanford University, University of California, Berkeley, University of Cambridge, and University of Oxford have conducted precision measurements and theoretical studies.
Molybdenum-100 is one of several stable isotopes of the element molybdenum and is contemporaneously important in fields connected to Niels Bohr, Erwin Schrödinger, Paul Dirac, Maria Goeppert Mayer, and facilities including the European Organization for Nuclear Research and the National Institute of Standards and Technology. Its presence is relevant to experiments supported by agencies such as the National Science Foundation, Department of Energy (United States), Helmholtz Association, Max Planck Society, and laboratories at the Institut Laue-Langevin and the Joint Institute for Nuclear Research. Historical milestones associated with isotopes trace to figures like Marie Curie, Frederick Soddy, Otto Frisch, and Rudolf Mössbauer.
The nuclear structure of Molybdenum-100 has been investigated using techniques developed by Hans Bethe, Victor Weisskopf, Miguel Ángel Alarcón, and groups at TRIUMF, RIKEN, GANIL, GSI Helmholtz Centre for Heavy Ion Research, and Argonne National Laboratory. Studies reference theoretical frameworks from Stanislaw Ulam, John Archibald Wheeler, Richard Feynman, Lev Landau, and Andrei Sakharov. Nuclear spin, energy levels, and matrix elements have been probed with spectrometers like those at SNO, Super-Kamiokande, KamLAND, EXO-200, and GERDA. Models stemming from John von Neumann and computations on supercomputers at Oak Ridge National Laboratory and Lawrence Livermore National Laboratory inform nuclear matrix element calculations.
Commercial and research-scale enrichment of Molybdenum-100 has relied on centrifuge, electromagnetic, and chemical methods practiced at plants associated with Urenco Group, URENCO, Areva, Rosatom, China National Nuclear Corporation, and isotope suppliers such as Ion Beam Applications and Eckert & Ziegler. Mining and ore processing of molybdenum involve companies like Rio Tinto, Freeport-McMoRan, Glencore, BHP, and Teck Resources. Isotope separation techniques trace to work by Francis William Aston and subsequent implementations at Oak Ridge, Y-12 National Security Complex, and Kalpakkam. Trade, regulation, and transport intersect with agencies such as the International Atomic Energy Agency, World Health Organization, International Civil Aviation Organization, United Nations, and International Maritime Organization.
Molybdenum-100 is central to neutron capture and decay experiments at facilities like Institut Laue-Langevin, Frankfurt Neutron Source, and reactors including the High Flux Isotope Reactor and CROCUS. It is used as a precursor or target material in production chains for medical isotopes and technologies employed by companies such as Siemens Healthineers, GE Healthcare, Philips Healthcare, Bayer AG, and Lantheus Medical Imaging. Experimental searches for rare processes involving Molybdenum-100 are conducted by collaborations like NEMO-3, SuperNEMO, CUORE, MAJORANA, and SNO+, and are of interest to theorists at Perimeter Institute, CERN Theory Division, Institute for Advanced Study, Kavli Institute for Theoretical Physics, and Los Alamos National Laboratory. Applications extend into material science investigations at Max Planck Institute for Intelligent Systems, Paul Scherrer Institute, and California Institute of Technology.
Though observational limits indicate great stability, searches for double beta decay modes involving Molybdenum-100 are key projects for collaborations such as NEMO-3, SuperNEMO, KamLAND-Zen, and GERDA. Experimental setups draw on detector technologies from XENON Collaboration, LUX-ZEPLIN, Borexino, and cryogenic methods developed at National Institute for Nuclear Physics and Particle Astrophysics. Theoretical interpretations reference contributions by Frank Wilczek, Steven Weinberg, Gerard 't Hooft, Murray Gell-Mann, and Sheldon Glashow. Limits on neutrinoless double beta decay inform neutrino mass models studied by teams at IceCube, NOvA, DUNE, T2K, and MINOS.
Handling of enriched Molybdenum-100 targets and materials follows protocols established by organizations like the Occupational Safety and Health Administration, European Medicines Agency, Food and Drug Administration, International Atomic Energy Agency, and World Health Organization. Laboratory practices derive from standards set by American National Standards Institute, ISO, ASTM International, Deutsche Institut für Normung, and national regulators in countries such as United States, Germany, France, Japan, and China. Shipping and storage comply with guidance from International Air Transport Association, International Maritime Organization, and emergency response protocols coordinated with Federal Emergency Management Agency and European Commission agencies.
Precision measurements involving Molybdenum-100 employ instrumentation from collaborations at CERN, TRIUMF, RIKEN, GSI, Argonne, Brookhaven, and university labs at MIT, Princeton University, Harvard University, and Yale University. Techniques include mass spectrometry following methods by F.W. Aston, gamma spectroscopy influenced by work at Lawrence Berkeley National Laboratory, and cryogenic bolometry used in experiments like CUORE. Data analysis and Monte Carlo simulations draw on software and frameworks from ROOT (software), Geant4, MATLAB, Python (programming language), Fortran, and numerical libraries developed at Los Alamos National Laboratory and Sandia National Laboratories. International collaborations coordinate via funding from European Research Council, National Science Foundation, Department of Energy (United States), Japan Society for the Promotion of Science, and Canadian Institutes of Health Research.
Category:Isotopes of molybdenum