![]() Each subband can be configured with its own subband bandwidth, number of frequency channels, and polarization products place up to 32, independently tunable subbands within a baseband, up to 64 in total.access 1GHz or 2GHz chunks in each receiver band (called basebands) and place multiple correlator subbands within them.deliver continuous spectral coverage of up to 8GHz.The WIDAR correlator is extremely flexible and can act as up to 64 independent correlators with different bandwidths, channel numbers, polarization products, and observing frequencies. The VLA's improved sensitivity and wide bandwidths greatly enhance the VLA's functionality for spectral line purposes, enabling simultaneous imaging of multiple spectral lines. All observations with the VLA are inherently spectral observations, including those intended for continuum science. Department of Energy, by the National Aeronautics and Space Administration, by NIST's Standard Reference Data Program (SRDP), and by NIST's SMA Program.The wide bandwidths of the VLA allow users to observe up to 8GHz of bandwidth at a time. 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. 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. Help - On-line help in using the database. Synchrotron Ultraviolet Radiation Facility SURF IIIĪSD Interface for Laser Induced Breakdown Spectroscopy (LIBS)Īdditional information about the database may be obtained through the following links:Ītomic Spectroscopy Intro - Outlines basic atomic physics concepts, explains terminology and notation.ĪSD Intro & Contents - Introduction to and contents of the Atomic Spectra Database.īibliography - Bibliography of data sources used for this database.Radiopharmaceutical Standardization Laboratory.Calibrations Customer Survey (external link). ![]()
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