![]() Department of Energy, by the National Aeronautics and Space Administration, by NIST's Standard Reference Data Program (SRDP), and by NIST's SMA Program. This database was funded by the Office of Fusion Energy Sciences of the U.S. Online: March 1995 - Last update: October 2022 All rights reserved. NIST reserves the right to charge for these data in the future. Department of Commerce on behalf of the United States. Past Contributors: Haris Kunari, Jean E. Sansonetti, Jeffrey R. Fuhr, Larissa I. Podobedova, Wolfgang L. Wiese, John J. Curry, Gerry R. Dalton, Robert Dragoset, Fun-Chen (Jesse) Jou, William C. Martin, Peter J. Mohr, Arlene Musgrove, Craig J. Sansonetti, and Gloria Wiersma ![]() Students contributing to data entry: Eric Carpentier, Thomas Carpentier, Amy Zimmerman, Adrian Hamins-Puertolas, Marko Hamins-Puertolas, Anna Sharova, Genevieve Tan NIST ASD Team Principal Developers (Currently Active): Alexander Kramida, Yuri Ralchenko, and Joseph Readerĭata Compilers (Currently Active): Alexander Kramida, Edward B. Salomanĭatabase Developers (Currently Active): Alexander Kramida, Yuri Ralchenko, and Karen Olsen The Data Center is located in the Physical Measurement Laboratory at the National Institute of Standards and Technology (NIST). The Atomic Spectroscopy Data Center has carried out these critical compilations. ![]() Each of these mechanisms has a characteristic spectrum. For instance, there are many different mechanisms by which an object, like a star, can produce light. Each spectrum holds a wide variety of information. ![]() This database provides access and search capability for NIST critically evaluated data on atomic energy levels, wavelengths, and transition probabilities that are reasonably up-to-date. Spectra can be produced for any energy of light, from low-energy radio waves to very high-energy gamma rays. Help - On-line help in using the database.
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