Search Results - "Callahan, N. B."

Measurement of spin-flip probabilities for ultracold neutrons interacting with nickel phosphorus coated surfaces by Tang, Z., Adamek, E.R., Brandt, A., Callahan, N.B., Clayton, S.M., Currie, S.A., Ito, T.M., Makela, M., Masuda, Y., Morris, C.L., Pattie, R.W., Ramsey, J.C., Salvat, D.J., Saunders, A., Young, A.R.

“…We report a measurement of the spin-flip probabilities for ultracold neutrons interacting with surfaces coated with nickel phosphorus. For 50μm thick nickel…”
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Measurement of the neutron lifetime using a magneto-gravitational trap and in situ detection by Pattie, Jr, R W, Callahan, N B, Cude-Woods, C, Adamek, E R, Broussard, L J, Clayton, S M, Currie, S A, Dees, E B, Ding, X, Engel, E M, Fellers, D E, Fox, W, Geltenbort, P, Hickerson, K P, Hoffbauer, M A, Holley, A T, Komives, A, Liu, C-Y, MacDonald, S W T, Makela, M, Morris, C L, Ortiz, J D, Ramsey, J, Salvat, D J, Saunders, A, Seestrom, S J, Sharapov, E I, Sjue, S K, Tang, Z, Vanderwerp, J, Vogelaar, B, Walstrom, P L, Wang, Z, Wei, W, Weaver, H L, Wexler, J W, Womack, T L, Young, A R, Zeck, B A

“…The precise value of the mean neutron lifetime, τ , plays an important role in nuclear and particle physics and cosmology. It is used to predict the ratio of…”
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Fill and dump measurement of the neutron lifetime using an asymmetric magneto-gravitational trap by Cude-Woods, C, Gonzalez, F. M, Fries, E. M, Bailey, T, Blatnik, M, Callahan, N. B, Choi, J. H, Clayton, S. M, Currie, S. A, Dawid, M, Filippone, B. W, Fox, W, Geltenbort, P, George, E, Hayen, L, Hickerson, K. P, Hoffbauer, M. A, Hoffman, K, Holley, A. T, Ito, T. M, Komives, A, Liu, C. -Y, Makela, M, Morris, C. L, Musedinovic, R, O'Shaughnessy, C, Pattie,Jr, R. W, Ramsey, J, Salvat, D. J, Saunders, A, Sharapov, 5 E. I, Slutsky, S, Su, V, Sun, X, Swank, C, Tang, Z, Uhrich, W, Vanderwerp, J, Walstrom, P, Wang, Z, Wei, W, Young, A. R

“…The past two decades have yielded several new measurements and reanalyses of older measurements of the neutron lifetime. These have led to a 4.4 standard…”
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Improved Neutron Lifetime Measurement with UCN τ by Gonzalez, F. M., Fries, E. M., Cude-Woods, C., Bailey, T., Blatnik, M., Broussard, L. J., Callahan, N. B., Choi, J. H., Clayton, S. M., Currie, S. A., Dawid, M., Dees, E. B., Filippone, B. W., Fox, W., Geltenbort, P., George, E., Hayen, L., Hickerson, K. P., Hoffbauer, M. A., Hoffman, K., Holley, A. T., Ito, T. M., Komives, A., Liu, C.-Y., Makela, M., Morris, C. L., Musedinovic, R., O’Shaughnessy, C., Pattie, R. W., Ramsey, J., Salvat, D. J., Saunders, A., Sharapov, E. I., Slutsky, S., Su, V., Sun, X., Swank, C., Tang, Z., Uhrich, W., Vanderwerp, J., Walstrom, P., Wang, Z., Wei, W., Young, A. R.

“…We report an improved measurement of the free neutron lifetime τn using the UCN τ apparatus at the Los Alamos Neutron Science Center. We count a total of…”
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A boron-coated CCD camera for direct detection of Ultracold Neutrons (UCN) by Kuk, K, Cude-Woods, C, Chavez, C. R, Choi, J. H, Estrada, J, Hoffbauer, M, Makela, M, Merkel, P, Morris, C. L, Ramberg, E, Wang, Z, Bailey, T, Blatnik, M, Adamek, E. R, Broussard, L. J, Brown, M. A. -P, Callahan, N. B, Clayton, S. M, Currie, S. A, Ding, X, Dinger, D, Filippone, B, Fries, E. M, Geltenbort, P, George, E, Gonzalez, F, Hickerson, K. P, Hoffman, K, Holley, A. T, Ito, T. M, MacDonald, S. W. T, Liu, C. -Y, O'Shaughnessy, C, Pattie,Jr, R. W, PhillipsII, D. G, Plaster, B, Salvat, D. J, Saunders, A, Seestrom, S, Sharapov, E. I, Sjue, S. K. L, Su, V, Sun, X, Tang, Z, Walstrom, P. L, Wei, W, Wexler, J. W, Womack, T. L, Young, A. R, Zeck, B. A, collaboration, UCN

“…Nuclear Instruments and Methods in Physics Research Section A, Volume 1003, 1 July 2021, 165306 A new boron-coated CCD camera is described for direct detection…”
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Performance of the upgraded ultracold neutron source at Los Alamos National Laboratory and its implication for a possible neutron electric dipole moment experiment by Ito, T. M, Adamek, E. R, Callahan, N. B, Choi, J. H, Clayton, S. M, Cude-Woods, C, Currie, S, Ding, X, Fellers, D. E, Geltenbort, P, Lamoreaux, S. K, Liu, C. Y, MacDonald, S, Makela, M, Morris, C. L, PattieJr, R. W, Ramsey, J. C, Salvat, D. J, Saunders, A, Sharapov, E. I, Sjue, S, Sprow, A. P, Tang, Z, Weaver, H. L, Wei, W, Young, A. R

“…Phys. Rev. C 97, 012501 (2018) The ultracold neutron (UCN) source at Los Alamos National Laboratory (LANL), which uses solid deuterium as the UCN converter and…”
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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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Evaluation of commercial nickel-phosphorus coating for ultracold neutron guides using a pinhole bottling method by PattieJr, R. W, Adamek, E, Brenner, T, Brandt, A, Broussard, L. J, Callahan, N. B, Clayton, S. M, Cude-Woods, C, Currie, S. A, Geltonbort, P, Ito, T, Lauer, T, Liu, C. Y, Majewski, J, Makela, M, Masuda, Y, Morris, C. L, Ramsey, J. C, Salvat, D, Saunders, A, Schroffenegger, J, Tang, Z, Wei, W, Wang, Z, Watkins, E, Young, A. R, Zeck, B. A

“…We report on the evaluation of commercial electroless nickel phosphorus (NiP) coatings for ultracold neutron (UCN) transport and storage. The material…”
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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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Measurement of the neutron lifetime using an asymmetric magneto- gravitational trap and in situ detection by PattieJr, R. W, Callahan, N. B, Cude-Woods, C, Adamek, E. R, Broussard, L. J, Clayton, S. M, Currie, S. A, Dees, E. B, Ding, X, Engel, E. M, Fellers, D. E, Fox, W, Hickerson, K. P, Hoffbauer, M. A, Holley, A. T, Komives, A, Liu, C. -Y, MacDonald, S. W. T, Makela, M, Morris, C. L, Ortiz, J. D, Ramsey, J, Salvat, D. J, Saunders, A, Seestrom, S. J, Sharapov, E. I, Sjue, S. K, Tang, Z, Vanderwerp, J, Vogelaar, B, Walstrom, P. L, Wang, Z, Wei, W, Weaver, H. L, Wexler, J. W, Womack, T. L, Young, A. R, Zeck, B. A

“…The precise value of the mean neutron lifetime, $\tau_n$, plays an important role in nuclear and particle physics and cosmology. It is a key input for…”
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Measurement of spin-flip probabilities for ultracold neutrons interacting with nickel phosphorus coated surfaces by Tang, Z, Adamek, E. R, Brandt, A, Callahan, N. B, Clayton, S. M, Currie, S. A, Ito, T. M, Makela, M, Masuda, Y, Morris, C. L, PattieJr, R, Ramsey, J. C, Salvat, D. J, Saunders, A, Young, A. R

“…Nucl. Instrum. Methods Phys. Res. Sect. A 827, 32 (2016) We report a measurement of the spin-flip probabilities for ultracold neutrons interacting with…”
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Evaluation of commercial nickel–phosphorus coating for ultracold neutron guides using a pinhole bottling method by Pattie, R.W., Adamek, E.R., Brenner, T., Brandt, A., Broussard, L.J., Callahan, N.B., Clayton, S.M., Cude-Woods, C., Currie, S.A., Geltenbort, P., Ito, T.M., Lauer, T., Liu, C.Y., Majewski, J., Makela, M., Masuda, Y., Morris, C.L., Ramsey, J.C., Salvat, D.J., Saunders, A., Schroffenegger, J., Tang, Z., Wei, W., Wang, Z., Watkins, E., Young, A.R., Zeck, B.A.

“…We report on the evaluation of commercial electroless nickel phosphorus (NiP) coatings for ultracold neutron (UCN) transport and storage. The material…”
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A new method for measuring the neutron lifetime using an in situ neutron detector by Morris, C. L, Adamek, E. R, Broussard, L. J, Callahan, N. B, Clayton, S. M, Cude-Woods, C, Currie, S. A, Ding, X, Fox, W, Hickerson, K. P, Holley, A. T, Komives, A, Liu, C. -Y, Makela, M, PattieJr, R. W, Ramsey, J, Salvat, D. J, Saunders, A, Seestrom, S. J, Sharapov, E. I, Sjue, S. K, Tang, Z, Vanderwerp, J, Vogelaar, B, Walstrom, P. L, Wang, Z, Wei, Wanchun, Wexler, J. W, Womack, T. L, Young, A. R, Zeck, B. A

“…The neutron lifetime is important in understanding the production of light nuclei in the first minutes after the big bang and it provides basic information on…”
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Measurement of the neutron lifetime using a magneto-gravitational trap and in situ detection by Pattie, Jr., R. W., Callahan, N. B., Cude-Woods, C., Adamek, E. R., Broussard, Leah J., Clayton, S. M., Currie, S. A., Dees, E. B., Ding, Xinjian, Engel, E. M., Fellers, D. E., Fox, W., Geltenbort, P., Hickerson, K. P., Hoffbauer, M. A., Holley, A. T., Komives, A., Liu, C. -Y., MacDonald, S. W. T., Makela, M., Morris, C. L., Ortiz, J. D., Ramsey, J., Salvat, D. J., Saunders, A., Seestrom, S. J., Sharapov, E. I., Sjue, S. K., Tang, Z., Vanderwerp, J., Vogelaar, B., Walstrom, P. L., Wang, Z., Wei, W., Weaver, H. L., Wexler, J. W., Womack, T. L., Young, A. R., Zeck, Bryan A.

“…Here, the precise value of the mean neutron lifetime, τn, plays an important role in nuclear and particle physics and cosmology. It is used to predict the…”
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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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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,Jr, 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

“…Nuclear Instruments and Methods in Physics Research Section A, vol. 830, 36-43 (2016) Position-sensitive detection of ultracold neutrons (UCNs) is demonstrated…”
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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, Jr., 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.

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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,Jr, 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. W, Womack, T. L, Young, A. R, Zeck, B. A

“…Nuclear Instruments and Methods in Physics Research Section A, Volume 798, 30-35 (2015) A multilayer surface detector for ultracold neutrons (UCNs) is…”
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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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Storage of ultracold neutrons in the magneto-gravitational trap of the UCN τ experiment by Salvat, D. J., Adamek, E. R., Barlow, D., Bowman, J. D., Broussard, L. J., Callahan, N. B., Clayton, S. M., Cude-Woods, C., Currie, S., Dees, E. B., Fox, W., Geltenbort, P., Hickerson, K. P., Holley, A. T., Liu, C.-Y., Makela, M., Medina, J., Morley, D. J., Morris, C. L., Penttilä, S. I., Ramsey, J., Saunders, A., Seestrom, S. J., Sharapov, E. I., Sjue, S. K. L., Slaughter, B. A., Vanderwerp, J., VornDick, B., Walstrom, P. L., Wang, Z., Womack, T. L., Young, A. R.

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