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Author: joseph tan

Displaying records 11 to 20 of 45 records.
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11. Fundamental Constants and Tests of Theory in Rydberg States of Hydrogen-like Ions
Published: 4/22/2008
Authors: Ulrich D. Jentschura, Peter J Mohr, Joseph N Tan, B. J. Wundt
Abstract: A comparison of precision frequency measurements to quantum electrodynamics (QED) predictions for Rydberg states of hydrogen-like ions can yield information on values of fundamental constants and test theory. With the results of a calculation of a ke ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=904182

12. Spectra of W^u39+^-W^u47+^ in the 12 nm to 20 nm Region Observed With an EBIT Light Source
Published: 10/14/2007
Authors: Yuri Ralchenko, Joseph Reader, Joshua M Pomeroy, Joseph N Tan, John D Gillaspy
Abstract: We observed spectra of highly ionized tungsten in the extreme ultraviolet with an electron beam ion trap (EBIT) and a grazing incidence spectrometer at the National Institute of Standards and Technology. Stages of ionization were distinguished by var ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=840893

13. Chen et al. ReplyThe 3C / 3D Line Ratio in Nixix: New Ab Initio Theory and Experimental Results [Physical Review Letters 97, 143201 (2006)]
Published: 9/7/2007
Authors: G X Chen, K P Kirby, E Silver, N Brickhouse, John D Gillaspy, Joseph N Tan, Joshua M Pomeroy, J M Laming
Abstract: No abstract.
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=840888

14. EUV Spectroscopy of Highly Charged Xenon Ions Created Using an Electron Beam Ion Trap
Published: 3/27/2007
Authors: K Fahy, E Sokell, G O'Sullivan, A Aguilar, Joshua M Pomeroy, Joseph N Tan, John D Gillaspy
Abstract: At the NIST Electron Beam Ion Trap (EBIT), extreme-ultraviolet spectra of xenon ions have been recorded using a flat-field spectrometer. The electron beam energy was varied from 180 eV to 8 keV and radiation from charge states Xe6+ to Xe43+ was obser ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=840845

15. Data Acquisition System Development for the Detection of X-Ray Photons in Multi-Wire Gas Proportional Counters
Published: 1/1/2007
Authors: J A Kimpton, M N Kinnane, L F Smale, Christopher T. Chantler, Lawrence T Hudson, Albert Henins, C I Szabo, John D Gillaspy, Joseph N Tan, Joshua M Pomeroy, E Takacs, B Radics
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=100999

16. Detection of Faint X-Ray Spectral Features Using Wavelength, Energy, and Spatial Discrimination Techniques
Published: 1/1/2007
Authors: Lawrence T Hudson, John D Gillaspy, Joshua M Pomeroy, C I Szabo, Joseph N Tan, B Radics, E Takacs, Christopher T. Chantler, J A Kimpton, M N Kinnane, L F Smale
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=100952

17. Detection of faint X-ray spectral features using wavelength, energy, and spatial discrimination techniques
Published: 1/1/2007
Authors: Lawrence T Hudson, John D Gillaspy, Joshua M Pomeroy, C I Szabo, Joseph N Tan, B Radics, E Takacs, Christopher T. Chantler, J A Kimpton, M N Kinnane, L F Smale
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=101844

18. Detection of faint X-ray spectral features using wavelength, energy, and spatial discrimination techniques
Published: 1/1/2007
Authors: Lawrence T Hudson, John D Gillaspy, Joshua M Pomeroy, C I Szabo, Joseph N Tan, B Radics, E Takacs, Christopher T. Chantler, J A Kimpton, M N Kinnane, L F Smale
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=106883

19. Extreme-ultraviolet spectroscopy of highly charged xenon ions created using an electron-beam ion trap
Published: 1/1/2007
Authors: K Fahy, E Sokell, G O'Sullivan, A Aguilar, Joshua M Pomeroy, Joseph N Tan, John D Gillaspy
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=101828

20. Extreme-ultraviolet spectroscopy of highly charged xenon ions created using an electron-beam ion trap
Published: 1/1/2007
Authors: K Fahy, E Sokell, G O'Sullivan, A Aguilar, Joshua M Pomeroy, Joseph N Tan, John D Gillaspy
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=106876