Search Results - "STUTMAN, D"

Experimental demonstration of ultrahigh sensitivity Talbot-Lau interferometer for low dose mammography by Safca, N, Stutman, D, Anghel, E, Negoita, F, Ur, C A

“… Even though the techniques used for breast cancer identification have advanced over the years, current mammography based on x-rays absorption, the 'gold…”
Get more information

New light in nuclear physics: The extreme light infrastructure by Balabanski, D. L., Popescu, R., Stutman, D., Tanaka, K. A., Tesileanu, O., Ur, C. A., Ursescu, D., Zamfir, N. V.

“…Extreme Light Infrastructure-Nuclear Physics (ELI-NP), to become operational in 2019, is a new Research Center built in Romania that will use extreme…”
Get full text

Correlation between electron transport and shear Alfvén activity in the National Spherical Torus Experiment by Stutman, D, Delgado-Aparicio, L, Gorelenkov, N, Finkenthal, M, Fredrickson, E, Kaye, S, Mazzucato, E, Tritz, K

“…We report the observation of a correlation between shear Alfvén eigenmode activity and electron transport in plasma regimes where the electron temperature…”
Get full text

Current status and highlights of the ELI-NP research program by Tanaka, K. A., Spohr, K. M., Balabanski, D. L., Balascuta, S., Capponi, L., Cernaianu, M. O., Cuciuc, M., Cucoanes, A., Dancus, I., Dhal, A., Diaconescu, B., Doria, D., Ghenuche, P., Ghita, D. G., Kisyov, S., Nastasa, V., Ong, J. F., Rotaru, F., Sangwan, D., Söderström, P.-A., Stutman, D., Suliman, G., Tesileanu, O., Tudor, L., Tsoneva, N., Ur, C. A., Ursescu, D., Zamfir, N. V.

“…The emergence of a new era reaching beyond current state-of-the-art ultrashort and ultraintense laser technology has been enabled by the approval of around €…”
Get full text

Glancing angle Talbot-Lau grating interferometers for phase contrast imaging at high x-ray energy by Stutman, D, Finkenthal, M

“…A Talbot-Lau interferometer is demonstrated using micro-periodic gratings inclined at a glancing angle along the light propagation direction. Due to the…”
Get full text

An x-ray backlit Talbot-Lau deflectometer for high-energy-density electron density diagnostics by Valdivia, M P, Stutman, D, Stoeckl, C, Theobald, W, Mileham, C, Begishev, I A, Bromage, J, Regan, S P

“…X-ray phase-contrast techniques can measure electron density gradients in high-energy-density plasmas through refraction induced phase shifts. An 8 keV…”
Get more information

Unravelling Visible and X-Ray Interferometry Data: The TNT Code by Perez-Callejo, G., Zulevic, D., Bouffetier, V., Stutman, D., Valdivia, M. P.

“…We present TNT, a code designed to postprocess and analyze interferometry images. TNT works by detecting the main peaks in the Fourier spectra of the…”
Get full text

Observation of instability-induced current redistribution in a spherical-torus plasma by Menard, J E, Bell, R E, Gates, D A, Kaye, S M, LeBlanc, B P, Levinton, F M, Medley, S S, Sabbagh, S A, Stutman, D, Tritz, K, Yuh, H

“…A motional Stark effect diagnostic has been utilized to reconstruct the parallel current density profile in a spherical-torus plasma for the first time. The…”
Get full text

High energy x-ray phase contrast CT using glancing-angle grating interferometers by Sarapata, A., Stayman, J. W., Finkenthal, M., Siewerdsen, J. H., Pfeiffer, F., Stutman, D.

“…Purpose: The authors present initial progress toward a clinically compatible x-ray phase contrast CT system, using glancing-angle x-ray grating interferometry…”
Get full text

The Talbot-Lau X-Ray Deflectometer: A Refraction-Based Plasma Diagnostic by Valdivia, M. P., Stutman, D., Stoeckl, C., Mileham, C., Begishev, I. A., Theobald, W., Bromage, J., Regan, S.P., Veloso, F., Vescovi, M., Munoz-Cordovez, G., Valenzuela-Villaseca, V., Klein, S. R., Casner, A., Albertazzi, B., Mabey, P., Michel, T., Rigon, G., Koenig, M., Pikuz, S.A.

“…Talbot-Lau X-ray Deflectometry (TXD) has been developed as an electron density diagnostic for High Energy Density (HED) plasmas. The diagnostic delivers…”
Get full text

Talbot-Lau x-ray density diagnostic for High Energy Density plasmas by Valdivia, M. P., Stutman, D., Finkenthal, M., Regan, S. P., Stoeckl, C., Mileham, C., Begishev, I.

“…Phase-contrast x-ray diagnostics can detect density gradients in low-Z matter with the sensitivity and spatial resolution required in High Energy Density (HED)…”
Get full text

Testing of liquid lithium limiters in CDX-U by Majeski, R., Kaita, R., Boaz, M., Efthimion, P., Gray, T., Jones, B., Hoffman, D., Kugel, H., Menard, J., Munsat, T., Post-Zwicker, A., Spaleta, J., Taylor, G., Timberlake, J., Woolley, R., Zakharov, L., Finkenthal, M., Stutman, D., Antar, G., Doerner, R., Luckhardt, S., Seraydarian, R., Maingi, R., Maiorano, M., Smith, S., Rodgers, D., Soukhanovskii, V.

“…Part of the development of liquid metals as a first wall or divertor for reactor applications must involve the investigation of plasma–liquid metal…”
Get full text

CDX-U operation with a large area liquid lithium limiter by Majeski, R, Boaz, M, Hoffman, D, Jones, B, Kaita, R, Kugel, H, Munsat, T, Spaleta, J, Soukhanovskii, V, Timberlake, J, Zakharov, L, Antar, G, Doerner, R, Luckhardt, S, Conn, R.W, Finkenthal, M, Stutman, D, Maingi, R, Ulrickson, M

“…The current drive experiment-upgrade (CDX-U) at the Princeton Plasma Physics Laboratory has begun experiments with a fully toroidal liquid lithium limiter…”
Get full text

ELMs and the H-mode pedestal in NSTX by Maingi, R., Sabbagh, S.A., Bush, C.E., Fredrickson, E.D., Menard, J.E., Stutman, D., Tritz, K., Bell, M.G., Bell, R.E., Boedo, J.A., Gates, D.A., Johnson, D.W., Kaita, R., Kaye, S.M., Kugel, H.W., LeBlanc, B.P., Mueller, D., Raman, R., Roquemore, A.L., Soukhanovskii, V.A., Stevenson, T.

“…We report on the behavior of ELMs in NBI-heated H-mode plasmas in NSTX. It is observed that the size of Type I ELMs, characterized by the change in plasma…”
Get full text

Effects of large area liquid lithium limiters on spherical torus plasmas by Kaita, R., Majeski, R., Boaz, M., Efthimion, P., Gettelfinger, G., Gray, T., Hoffman, D., Jardin, S., Kugel, H., Marfuta, P., Munsat, T., Neumeyer, C., Raftopoulos, S., Soukhanovskii, V., Spaleta, J., Taylor, G., Timberlake, J., Woolley, R., Zakharov, L., Finkenthal, M., Stutman, D., Delgado-Aparicio, L., Seraydarian, R.P., Antar, G., Doerner, R., Luckhardt, S., Baldwin, M., Conn, R.W., Maingi, R., Menon, M., Causey, R., Buchenauer, D., Ulrickson, M., Jones, B., Rodgers, D.

“…Use of a large-area liquid lithium surface as a limiter has significantly improved the plasma performance in the Current Drive Experiment-Upgrade (CDX-U) at…”
Get full text

Referenceless, grating-based, single shot X-ray phase contrast imaging with optimized laser-driven K-α sources by Bouffetier, V., Pérez-Callejo, G., Stutman, D., Stoeckl, C., Begishev, I. A., Theobald, W., Filkins, T., Mileham, C., Ceurvorst, L., Klein, S. R., Goudal, T., Casner, A., Valdivia, M. P.

“…With its ability to efficiently probe low-Z materials, X-ray phase imaging methods have recently raised high interest in multiple fields from biology and…”
Get full text

Characteristics of the first H-mode discharges in the national spherical torus experiment by Maingi, R, Bell, M G, Bell, R E, Bush, C E, Fredrickson, E D, Gates, D A, Kaye, S M, Kugel, H W, LeBlanc, B P, Menard, J E, Mueller, D, Sabbagh, S A, Stutman, D, Taylor, G, Johnson, D W, Kaita, R, Maqueda, R J, Ono, M, Paoletti, F, Paul, S F, Peng, Y-K M, Roquemore, A L, Skinner, C H, Soukhanovskii, V A, Synakowski, E J

“…We report observations of the first low-to-high ( L-H) confinement mode transitions in the National Spherical Torus Experiment. The H-mode energy confinement…”
Get full text

Impact of the wall conditioning program on plasma performance in NSTX by Kugel, H.W., Soukhanovskii, V., Bell, M., Blanchard, W., Gates, D., LeBlanc, B., Maingi, R., Mueller, D., Na, H.K., Paul, S., Skinner, C.H., Stutman, D., Wampler, W.R.

“…High performance operating regimes have been achieved on NSTX through impurity control and wall conditioning techniques. These techniques include HeGDC-aided…”
Get full text

NSTX diagnostics for fusion plasma science studies by Kaita, R., Johnson, D., Roquemore, L., Bitter, M., Levinton, F., Paoletti, F., Stutman, D.

“…This paper will discuss how plasma science issues are addressed by the diagnostics for the National Spherical Torus Experiment (NSTX), the newest large-scale…”
Get full text

Overview of impurity control and wall conditioning in NSTX by Kugel, H.W., Maingi, R., Wampler, W., Barry, R.E., Bell, M., Blanchard, W., Gates, D., Johnson, D., Kaita, R., Kaye, S., Maqueda, R., Menard, J., Menon, M.M., Mueller, D., Ono, M., Paul, S., Peng, Y-K.M., Raman, R., Roquemore, A., Skinner, C.H., Sabbagh, S., Stratton, B., Stutman, D., Wilson, J.R., Zweben, S.

“…The national spherical torus experiment (NSTX) started plasma operations in February 1999. In the first extended period of experiments, NSTX achieved high…”
Get full text