Search Results - "Holley, A.T."

Propagation and extinction of premixed dimethyl-ether/air flames by Wang, Y.L., Holley, A.T., Ji, C., Egolfopoulos, F.N., Tsotsis, T.T., Curran, H.J.

“…Laminar flame speeds and extinction strain rates of dimethyl-ether/air mixtures were measured at room temperature and atmospheric pressure over a wide range of…”
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Sensitivity of propagation and extinction of large hydrocarbon flames to fuel diffusion by Holley, A.T., You, X.Q., Dames, E., Wang, H., Egolfopoulos, F.N.

“…Detailed flame simulations require the use of both chemical kinetics and molecular transport. Compared to kinetics, notably less work has been done to assess…”
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Demonstration of sub-micron UCN position resolution using room-temperature CMOS sensor by Lin, S., Baldwin, J.K., Blatnik, M., Clayton, S.M., Cude-Woods, C., Currie, S.A., Filippone, B., Fries, E.M., Geltenbort, P., Holley, A.T., Li, W., Liu, C.-Y., Makela, M., Morris, C.L., Musedinovic, R., O’Shaughnessy, C., Pattie, R.W., Salvat, D.J., Saunders, A., Sharapov, E.I., Singh, M., Sun, X., Tang, Z., Uhrich, W., Wei, W., Wolfe, B., Young, A.R., Wang, Z.

“…High spatial resolution of ultracold neutron (UCN) measurement is of growing interest to UCN experiments such as UCN spectrometers, UCN polarimeters, quantum…”
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Projection imaging with ultracold neutrons by Kuk, K., Cude-Woods, C., Chavez, C.R., Choi, J.H., Estrada, J., Hoffbauer, M., Holland, S.E., Makela, M., Morris, C.L., Ramberg, E., Adamek, E.R., Bailey, T., Blatnik, M., Broussard, L.J., Brown, M.A.-P., Callahan, N.B., Clayton, S.M., Currie, S., Filippone, B.W., Fries, E.M., Geltenbort, P., Gonzalez, F., Hassan, M.T., Hayen, L., Hickerson, K.P., Holley, A.T., Ito, T.M., Liu, C.-Y., Merkel, P., Musedinovic, R., O’Shaughnessy, C., Pattie, R.W., Plaster, B., Salvat, D.J., Saunders, A., Sharapov, E.I., Sun, X., Tang, Z., Wei, W., Wexler, J.W., Young, A.R., Wang, Zhehui

“…Ultracold neutron (UCN) projection imaging is demonstrated using a boron-coated back-illuminated CCD camera and the Los Alamos UCN source. Each neutron is…”
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A multilayer surface detector for ultracold neutrons by Wang, Zhehui, Hoffbauer, M.A., Morris, C.L., Callahan, N.B., Adamek, E.R., Bacon, J.D., Blatnik, M., Brandt, A.E., Broussard, L.J., Clayton, S.M., Cude-Woods, C., Currie, S., Dees, E.B., Ding, X., Gao, J., Gray, F.E., Hickerson, K.P., Holley, A.T., Ito, T.M., Liu, C.-Y., Makela, M., Ramsey, J.C., Pattie, R.W., Salvat, D.J., Saunders, A., Schmidt, D.W., Schulze, R.K., Seestrom, S.J., Sharapov, E.I., Sprow, A., Tang, Z., Wei, W., Wexler, J., Womack, T.L., Young, A.R., Zeck, B.A.

“…A multilayer surface detector for ultracold neutrons (UCNs) is described. The top 10B layer is exposed to vacuum and directly captures UCNs. The ZnS:Ag layer…”
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Ignition and extinction of non-premixed flames of single-component liquid hydrocarbons, jet fuels, and their surrogates by Holley, A.T., Dong, Y., Andac, M.G., Egolfopoulos, F.N., Edwards, T.

“…In the present study, extinction strain rates and ignition temperatures of a wide range of jet fuels were experimentally determined in the counterflow…”
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Detection system for neutron β decay correlations in the UCNB and Nab experiments by Broussard, L.J., Zeck, B.A., Adamek, E.R., Baeßler, S., Birge, N., Blatnik, M., Bowman, J.D., Brandt, A.E., Brown, M., Burkhart, J., Callahan, N.B., Clayton, S.M., Crawford, C., Cude-Woods, C., Currie, S., Dees, E.B., Ding, X., Fomin, N., Frlez, E., Fry, J., Gray, F.E., Hasan, S., Hickerson, K.P., Hoagland, J., Holley, A.T., Ito, T.M., Klein, A., Li, H., Liu, C.-Y., Makela, M.F., McGaughey, P.L., Mirabal-Martinez, J., Morris, C.L., Ortiz, J.D., Pattie, R.W., Penttilä, S.I., Plaster, B., Počanić, D., Ramsey, J.C., Salas-Bacci, A., Salvat, D.J., Saunders, A., Seestrom, S.J., Sjue, S.K.L., Sprow, A.P., Tang, Z., Vogelaar, R.B., Vorndick, B., Wang, Z., Wei, W., Wexler, J., Wilburn, W.S., Womack, T.L., Young, A.R.

“…We describe a detection system designed for precise measurements of angular correlations in neutron β decay. The system is based on thick, large area, highly…”
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Extinction of premixed flames of practical liquid fuels: Experiments and simulations by Holley, A.T., Dong, Y., Andac, M.G., Egolfopoulos, F.N.

“…Compared to those for gaseous fuels, fundamental flame studies for liquid fuels are less extensive. The reasons are the experimental difficulty in handling the…”
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Position-sensitive detection of ultracold neutrons with an imaging camera and its implications to spectroscopy by Wei, Wanchun, Broussard, L.J., Hoffbauer, M.A., Makela, M., Morris, C.L., Tang, Z., Adamek, E.R., Callahan, N.B., Clayton, S.M., Cude-Woods, C., Currie, S., Dees, E.B., Ding, X., Geltenbort, P., Hickerson, K.P., Holley, A.T., Ito, T.M., Leung, K.K., Liu, C.-Y., Morley, D.J., Ortiz, Jose D., Pattie, R.W., Ramsey, J.C., Saunders, A., Seestrom, S.J., Sharapov, E.I., Sjue, S.K., Wexler, J., Womack, T.L., Young, A.R., Zeck, B.A., Wang, Zhehui

“…Position-sensitive detection of ultracold neutrons (UCNs) is demonstrated using an imaging charge-coupled device (CCD) camera. A spatial resolution less than…”
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An assessment of the lean flammability limits of CH 4/air and C 3H 8/air mixtures at engine-like conditions by Egolfopoulos, F.N., Holley, A.T., Law, C.K.

“…The lean flammability limits of CH 4/air and C 3H 8/air mixtures were numerically determined for a wide range of pressures and unburned mixture temperatures in…”
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A boron-coated ionization chamber for ultra-cold neutron detection by Salvat, D.J., Morris, C.L., Wang, Z., Adamek, E.R., Bacon, J., Hickerson, K.P., Hoagland, J., Holley, A.T., Liu, C.-Y., Makela, M., Ramsey, J., Reid, A., Rios, R., Saunders, A., Sjue, S.K.L., VornDick, B., Young, A.R.

“…The design and performance of a boron-coated ionization chamber for the detection of ultra-cold neutrons (UCN) are presented. We detect UCN from the solid…”
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An assessment of the lean flammability limits of CH4/air and C3H8/air mixtures at engine-like conditions by Egolfopoulos, F.N., Holley, A.T., Law, C.K.

“…The lean flammability limits of CH4/air and C3H8/air mixtures were numerically determined for a wide range of pressures and unburned mixture temperatures in…”
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Final results for the neutron β -asymmetry parameter A 0 from the UCNA experiment by Plaster, B., Adamek, E., Allgeier, B., Anaya, J., Back, H.O., Bagdasarova, Y., Berguno, D.B., Blatnik, M., Boissevain, J.G., Bowles, T.J., Broussard, L.J., Brown, M.A.-P., Carr, R., Clark, D.J., Clayton, S., Cude-Woods, C., Currie, S., Dees, E.B., Ding, X., Du, S., Filippone, B.W., García, A., Geltenbort, P., Hasan, S., Hawari, A., Hickerson, K.P., Hill, R., Hino, M., Hoagland, J., Hoedl, S.A., Hogan, G.E., Hona, B., Hong, R., Holley, A.T., Ito, T.M., Kawai, T., Kirch, K., Kitagaki, S., Knecht, A., Lamoreaux, S.K., Liu, C.-Y., Liu, J., Makela, M., Mammei, R.R., Martin, J.W., Meier, N., Melconian, D., Mendenhall, M.P., Moore, S.D., Morris, C.L., Mortensen, R., Nepal, S., Nouri, N., Pattie, R.W., Pérez Galván, A., Phillips II, D.G., Pichlmaier, A., Picker, R., Pitt, M.L., Ramsey, J.C., Rios, R., Russell, R., Sabourov, K., Sallaska, A.L., Salvat, D.J., Saunders, A., Schmid, R., Seestrom, S.J., Servicky, C., Sharapov, E.I., Sjue, S.K.L., Slutsky, S., Smith, D., Sondheim, W.E., Sun, X., Swank, C., Swift, G., Tatar, E., Teasdale, W., Terai, C., Tipton, B., Utsuro, M., Vogelaar, R.B., VornDick, B., Wang, Z., Wehring, B., Wexler, J., Womack, T., Wrede, C., Xu, Y.P., Yan, H., Young, A.R., Yuan, J., Zeck, B.A.

“…The UCNA experiment was designed to measure the neutron β-asymmetry parameter A 0 using polarized ultracold neutrons (UCN). UCN produced via downscattering in…”
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Status of the UCN τ experiment by Pattie, R.W., Callahan, N.B., Cude-Woods, C., Adamek, E.R., Adams, M., Barlow, D., Blatnik, M., D., Bowman, Broussard, L.J., Clayton, S., Currie, S., Dees, E.B., Ding, X., Fellers, D., Fox, W., Fries, E., Gonzalez, F., Geltenbort, P., Hickerson, K.P., Hoffbauer, M.A., Hoffman, K., Holley, A.T., Howard, D., Ito, T.M., Komives, A., Liu, C.Y., M., Makela, Medina, J., Morley, D., Morris, C.L., O'Connor, T., Penttilä, S.I., Ramsey, J.C., Roberts, A., Salvat, D., Saunders, A., Seestrom, S.J., Sharapov, E.I., Sjue, S.K.L., Snow, W.M., Sprow, A., Vanderwerp, J., Vogelaar, B., P.L., Walstrom, Wang, Z., Weaver, H., Wexler, J., Womack, T.L., Young, A.R., Zeck, B.A.

“…The neutron is the simplest nuclear system that can be used to probe the structure of the weak interaction and search for physics beyond the standard model…”
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Search for neutron dark decay: n  → χ +  e + e by Sun, X., Adamek, E., Allgeier, B., Blatnik, M., Bowles, T.J., Broussard, L.J., Brown, M.A.-P., Carr, R., Clayton, S., Cude-Woods, C., Currie, S., Dees, E.B., Ding, X., Filippone, B.W., García, A., Geltenbort, P., Hasan, S., Hickerson, K.P., Hoagland, J., Hong, R., Hogan, G.E., Holley, A.T., Ito, T.M., Kneckt, A., Liu, C.-Y., Liu, J., Makela, M., Mammei, R., Martin, J.W., Melconian, D., Mendenhall, M.P., Moore, S.D., Morris, C.L., Nepal, S., Nouri, N., Pattie, R.W., Galván, A.P., Phillips II, D.G., Picker, R., Pitt, M.L., Plaster, B., Ramsey, J.C., Rios, R., Salvat, D.J., Saunders, A., Sondheim, W., Sjue, S., Slutsky, S., Swank, C., Swift, G., Tatar, E., Vogelaar, R.B., VornDick, B., Wanchun, W., Wang, Z., Wexler, J., Womack, T., Wrede, C., Young, A.R., Zeck, B.A.

“…In January, 2018, Fornal and Grinstein proposed that a previously unobserved neutron decay branch to a dark matter particle (χ) could account for the…”
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Final results for the neutron β-asymmetry parameter A0 from the UCNA experiment by Plaster, B, Adamek, E, Allgeier, B, Anaya, J, Back, HO, Bagdasarova, Y, Berguno, D B, Blatnik, M, Boissevain, J G, Bowles, T J, Broussard, L J, MA-P Brown, Carr, R, Clark, D J, Clayton, S, Cude-Woods, C, Currie, S, Dees, E B, Ding, X, S Du, Filippone, B W, García, A, Geltenbort, P, Hasan, S, Hawari, A, Hickerson, K P, Hill, R, Hino, M, Hoagland, J, Hoedl, SA, Hogan, GE, Hona, B, Hong, R, Holley, A T, Ito, T M, Kawai, T, Kirch, K, Kitagaki, S, Knecht, A, Lamoreaux, S K, C-Y, Liu, Liu, J, Makela, M, Mammei, R R, Martin, J W, Meier, N, Melconian, D, Mendenhall, M P, Moore, S D, Morris, CL, Mortensen, R, Nepal, S, Nouri, N, Pattie, RW, A Pérez Galván, Phillips, DG, Pichlmaier, A, Picker, R, Pitt, M L, Ramsey, J C, Rios, R, Russell, R, Sabourov, K, Sallaska, AL, Salvat, D J, Saunders, A, Schmid, R, Seestrom, S J, Servicky, C, Sharapov, E I, Sjue, SKL, Slutsky, S, Smith, D, Sondheim, W E, Sun, X, Swank, C, Swift, G, Tatar, E, Teasdale, W, Terai, C, Tipton, B, Utsuro, M, Vogelaar, R B, VornDick, B, Wang, Z, Wehring, B, Wexler, J, Womack, T, Wrede, C, Xu, Y P, Yan, H, Young, A R, Yuan, J, Zeck, BA

“…The UCNA experiment was designed to measure the neutron β-asymmetry parameter A0 using polarized ultracold neutrons (UCN). UCN produced via downscattering in…”
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Multi-wire proportional chamber for ultra-cold neutron detection by Morris, C.L., Bowles, T.J., Gonzales, J., Hill, R., Hogan, G., Makela, M., Mortenson, R., Ramsey, J., Saunders, A., Seestrom, S.J., Sondheim, W.E., Teasdale, W., Back, H.O., Pattie, R.W., Holley, A.T., Young, A.R., Broussard, L.J., Hickerson, K.P., Liu, J., Mendenhall, M.P., Plaster, B., Mammei, R.R., Pitt, M., Vogelaar, R.B., Rios, R., Martin, J.

“…In this paper we describe the principles that have guided our design and the experience we have gained building multi-wire proportional chambers detectors for…”
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Sealed drift tube cosmic ray veto counters by Rios, R., Tatar, E., Bacon, J.D., Bowles, T.J., Hill, R., Green, J.A., Hogan, G.E., Ito, T.M., Makela, M., Morris, C.L., Mortenson, R., Pasukanics, F.E., Ramsey, J., Saunders, A., Seestrom, S.J., Sondheim, W.E., Teasdale, W., Saltus, M., Back, H.O., Cottrell, C.R., Holley, A.T., Pattie, R.W., Young, A.R., Broussard, L.J., Filippone, B.W., Hickerson, K.P., Liu, J., Mendenhall, M.P., Plaster, B., Mammei, R.R., Pitt, M.L., Vogelaar, R.B., Martin, J.W.

“…We describe a simple drift tube counter that has been used as a cosmic ray veto for the UCNA experiment, a first-ever measurement of the neutron beta-asymmetry…”
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Characterization of thin-foil ultracold neutron detectors by Sallaska, A.L., Hoedl, S., Garcia, A., Melconian, D., Young, A.R., Geltenbort, P., Sjue, S.K.L., Holley, A.T.

“…We have fabricated ultracold neutron detectors that consist of silicon charged particle detectors coupled with thin nickel foils coated with either natural LiF…”
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