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Author: john curry

Displaying records 11 to 20 of 36 records.
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11. Monte Carlo simulation of photon scattering in x-ray absorption imaging of high-intensity discharge lamps
Published: 5/26/2010
Author: John J Curry
Abstract: Coherent and incoherent scattering of x rays during x-ray absorption imaging of high-intensity discharge lamps have been studied with Monte Carlo simulations developed specifically for this purpose. The Monte Carlo code is described and some init ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=903620

12. Absolute transition probabilities for 559 strong lines of neutral cerium
Published: 6/17/2009
Author: John J Curry
Abstract: Absolute radiative transition probabilities are reported for 559 strong lines of neutral cerium covering the wavelength range 340 nm to 880 nm. These transition probabilities are obtained by scaling published relative line intensities\cite{MCS75} w ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=901582

13. Quantitative X-ray Absorption Imaging With a Broadband Source: Application to High-Intensity Discharge Lamps
Published: 7/4/2008
Author: John J Curry
Abstract: We analyze the case of x-ray absorption imaging in which the x-ray source is broadband and the detector does not provide spectral resolution. Our particular interest is in the observation of the Hg vapor distribution in high-intensity discharge lamps ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=840917

14. X-Ray Induced Fluorescence Measurement of Segregation in a DyI3 Metal-Halide Lamp
Published: 4/19/2007
Authors: T Nimalisuriya, John J Curry, Craig J Sansonetti, E J Ridderhof, S Shastri, A J Flikweert, W W Stoffels, M Haverlag, J JAM van der Mullen
Abstract: X-ray induced fluorescence measurements, using high energy synchrotron radiation generated on the Sector 1 Insertion Device beamline at the Advanced Photon Source, were performed on a metal-halide lamp containing Hg and DyI$_{3}$. Density distributio ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=840863

15. Temperature Profiles and Thermal Losses in 150 Watt High-Intensity Discharge Lamps
Published: 8/19/2005
Authors: John J Curry, Craig J Sansonetti, J C.F. Wang
Abstract: A series of 150 W quartz metal-halide test lamps containing four different chemistries has been studied with optical emission spectroscopy and x-ray absorption imaging. The four chemistries are pure Hg, Hg-HgI$_2$, Hg-NaI, and Hg-NaI-DyI$_3$. Core t ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=840740

16. X-Ray Absorption Imaging of High-Pressure Lighting Plasmas
Published: 4/1/2005
Authors: John J Curry, Craig J Sansonetti
Abstract: X-ray absorption has been used to image the distribution of Hg in high-pressure arc lamps used for lighting (Curry, Sansonetti, and Wang, in progress). Here, several images are presented showing the analytic transformation of raw x-ray data into an i ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=840719

17. Temperature profiles and thermal losses in 150 W high-intensity discharge lamps
Published: 1/1/2005
Authors: John J Curry, Craig J Sansonetti, J C.F. Wang
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=102039

18. X-Ray Absorption Imaging of High-Pressure Lighting Plasmas
Published: 1/1/2005
Authors: John J Curry, Craig J Sansonetti
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=102038

19. X-ray induced fluorescence measurement of the density distribution of Dy and Hg in a metal-halide lamp
Published: 1/1/2005
Authors: T Nimalasuriya, John J Curry, Craig J Sansonetti, E J Ridderhof, A J Flikweert, W W Stoffels, d Mullen V
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=102841

20. Power Balance in Highly Loaded Fluorescent Lamps
Published: 10/28/2004
Authors: G G Lister, John J Curry, James E. Lawler
Abstract: Discrepancies reported in the literature between numerical predictions and experimental measurements in low-pressure Hg discharges at high current densities are considered. A one-dimensional fluid model and recent spectroscopic and Langmuir probe me ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=840709



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