Zobrazeno 1 - 10
of 1 649
pro vyhledávání: '"Walsh, N."'
Autor:
Martynenko, S., Bhandari, B., Bian, J., Bilton, K., Callahan, C., Chaves, J., Chen, H., Cline, D., Cooper, R. L., Danielson, D. L., Danielson, J., Dokania, N., Elliott, S., Fernandes, S., Gardiner, S., Garvey, G., Gehman, V., Giuliani, F., Glavin, S., Gold, M., Grant, C., Guardincerri, E., Haines, T., Higuera, A., Ji, J. Y., Kadel, R., Kamp, N., Karlin, A., Ketchum, W., Koerner, L. W., Lee, D., Lee, K., Liu, Q., Locke, S., Louis, W. C., Maricic, J., Martin, E., Martinez, M. J., Mauger, C., McGrew, C., Medina, J., Medina, P. J., Mills, A., Mills, G., Mirabal-Martinez, J., Olivier, A., Pantic, E., Philipbar, B., Pitcher, C., Radeka, V., Ramsey, J., Rielage, K., Rosen, M., Sanchez, A. R., Shin, J., Sinnis, G., Smy, M., Sondheim, W., Stancu, I., Sterbenz, C., Sun, Y., Svoboda, R., Taylor, C., Teymourian, A., Thorn, C., Tull, C. E., Tzanov, M., Van de Water, R. G., Walker, D., Walsh, N., Wang, H., Wang, Y., Yanagisawa, C., Yarritu, A., Yoo, J.
We report an extended measurement of the neutron cross section on argon in the energy range of 95-720 MeV. The measurement was obtained with a 4.3-hour exposure of the Mini-CAPTAIN detector to the WNR/LANSCE beam at LANL. Compared to an earlier analy
Externí odkaz:
http://arxiv.org/abs/2209.13488
Autor:
Snyder, L., Anastasiou, M., Bowden, N. S., Bundgaard, J., Casperson, R. J., Cebra, D. A., Classen, T., Dongwi, D. H., Fotiades, N., Gearhart, J., Geppert-Kleinrath, V., Greife, U., Hagmann, C., Heffner, M., Hensle, D., Higgins, D., Isenhower, L. D., Kazkaz, K., Kemnitz, A., King, J., Klay, J. L., Latta, J., Leal-Cidoncha, E., Loveland, W., Magee, J. A., Manning, B., Mendenhall, M. P., Monterial, M., Mosby, S., Neudecker, D., Prokop, C., Sangiorgio, S., Schmitt, K. T., Seilhan, B., Tovesson, F., Towell, R. S., Walsh, N., Watson, T. S., Yao, L., Younes, W.
The $^{239}$Pu(n,f)/$^{235}$U(n,f) cross-section ratio has been measured with the fission Time Projection Chamber (fissionTPC) from 100 keV to 100 MeV. The fissionTPC provides three-dimensional reconstruction of fission-fragment ionization profiles,
Externí odkaz:
http://arxiv.org/abs/2107.02881
Autor:
Monterial, M., Schmitt, K. T., Prokop, C., Leal-Cidoncha, E., Anastasiou, M., Bowden, N. S., Bundgaard, J., Casperson, R. J., Cebra, D. A., Classen, T., Dongwi, D. H., Fotiades, N., Gearhart, J., Geppert-Kleinrath, V., Greife, U., Hagmann, C., Heffner, M., Hensle, D., Higgins, D., Isenhower, L. D., Kazkaz, K., Kemnitz, A., King, J., Klay, J. L., Latta, J., Loveland, W., Magee, J. A., Manning, B., Mendenhall, M. P., Mosby, S., Neudecker, D., Sangiorgio, S., Seilhan, B., Snyder, L., Tovesson, F., Towell, R. S., Walsh, N., Watson, T. S., Yao, L., Younes, W.
We present the results of a measurement of isotopic concentrations and atomic number ratio of a double-sided actinide target with alpha-spectroscopy and mass spectrometry. The double-sided actinide target, with primarily Pu-239 on one side and U-235
Externí odkaz:
http://arxiv.org/abs/2106.06063
Autor:
CAPTAIN Collaboration, Taylor, C. E., Bhandari, B., Bian, J., Bilton, K., Callahan, C., Chaves, J., Chen, H., Cline, D., Cooper, R. L., Danielson, D. L., Danielson, J., Dokania, N., Elliot, S., Fernandes, S., Gardiner, S., Garvey, G., Gehman, V., Giuliani, F., Glavin, S., Gold, M., Grant, C., Guardincerri, E., Haines, T., Higuera, A., Ji, J. Y., Kadel, R., Kamp, N., Karlin, A., Ketchum, W., Koerner, L. W., Lee, D., Lee, K., Liu, Q., Locke, S., Louis, W. C., Madigan, P., Manalaysay, A., Maricic, J., Martin, E., Martinez, M. J., Martynenko, S., Mauger, C., McGrew, C., Medina, J., Medina, P. J., Mills, G., Mirabal-Martinez, J., Olivier, A., Pantic, E., Philipbar, B., Pitcher, C., Radeka, V., Ramsey, J., Rielage, K., Rosen, M., Sanchez, A. R., Shin, J., Sinnis, G., Smy, M., Sondheim, W., Stancu, I., Sterbenz, C., Sun, Y., Svoboda, R., Teymourian, A., Thorn, C., Tull, C. E., Tzanov, M., Van de Water, R., Walsh, N., Wang, H., Wang, Y., Yanagisawa, C., Yarritu, A., Yoo, J.
Publikováno v:
Nucl. Instrum. Methods Phys. Res. (2021) 165131
This manuscript describes the commissioning of the Mini-CAPTAIN liquid argon detector in a neutron beam at the Los Alamos Neutron Science Center (LANSCE), which led to a first measurement of high-energy neutron interactions in argon. The Mini-CAPTAIN
Externí odkaz:
http://arxiv.org/abs/2008.11422
Autor:
Hensle, D., Barker, J. T., Barrett, J. S., Bowden, N. S., Brewster, K. J., Bundgaard, J., Case, Z. Q., Casperson, R. J., Cebra, D. A., Classen, T., Duke, D. L., Fotiadis, N., Gearhart, J, Geppert-Kleinrath, V., Greife, U., Guardincerri, E., Hagmann, C., Heffner, M., Hicks, C. R., Higgins, D., Isenhower, L. D., Kazkaz, K., Kemnitz, A., Kiesling, K. J., King, J., Klay, J. L., Latta, J., Leal, E., Loveland, W., Lynch, M., Magee, J. A., Manning, B., Mendenhall, M. P., Monterial, M., Mosby, S., Oman, G., Prokop, C., Sangiorgio, S., Schmitt, K. T., Seilhan, B., Snyder, L., Tovesson, F., Towell, C. L., Towell, R. S., Towell, T. R., Walsh, N., Watson, T. S., Yao, L., Younes, W.
Publikováno v:
Phys. Rev. C 102, 014605 (2020)
The Neutron Induced Fission Fragment Tracking Experiment (NIFFTE) collaboration has performed measurements with a fission time projection chamber (fissionTPC) to study the fission process by reconstructing full three-dimensional tracks of fission fra
Externí odkaz:
http://arxiv.org/abs/2001.09381
Autor:
Walsh, N. I., Barker, J. T., Bowden, N. S., Brewster, K. J., Casperson, R. J., Classen, T., Fotiadis, N., Greife, U., Guardincerri, E., Hagmann, C., Heffner, M., Hensle, D., Hicks, C. R., Higgins, D., Isenhower, L. D., Kemnitz, A., Kiesling, K. J., King, J., Klay, J. L., Latta, J., Loveland, W., Magee, J. A., Mendenhall, M. P., Monterial, M., Mosby, S., Oman, G., Sangiorgio, S., Seilhan, B., Snyder, L., Towell, C. L., Towell, R. S., Towell, T. R., Schmitt, K. T., Watson, S., Yao, L., Younes, W.
We provide a quantitative description of a method to measure neutron-induced fission cross sections in ratio to elastic hydrogen scattering in a white-source neutron beam with the fission Time Projection Chamber. This detector has measured precision
Externí odkaz:
http://arxiv.org/abs/1904.10558
Autor:
Bhandari, B., Bian, J., Bilton, K., Callahan, C., Chaves, J., Chen, H., Cline, D., Cooper, R. L., Danielson, D., Danielson, J., Dokania, N., Elliott, S., Fernandes, S., Gardiner, S., Garvey, G., Gehman, V., Giuliani, F., Glavin, S., Gold, M., Grant, C., Guardincerri, E., Haines, T., Higuera, A., Ji, J. Y., Kadel, R., Kamp, N., Karlin, A., Ketchum, W., Koerner, L. W., Lee, D., Lee, K., Liu, Q., Locke, S., Louis, W. C., Manalaysay, A., Maricic, J., Martin, E., Martinez, M. J., Martynenko, S., Mauger, C., McGrew, C., Medina, J., Medina, P. J., Mills, A., Mills, G., Mirabal-Martinez, J., Olivier, A., Pantic, E., Philipbar, B., Pitcher, C., Radeka, V., Ramsey, J., Rielage, K., Rosen, M., Sanchez, A. R., Shin, J., Sinnis, G., Smy, M., Sondheim, W., Stancu, I., Sterbenz, C., Sun, Y., Svoboda, R., Taylor, C., Teymourian, A., Thorn, C., Tull, C. E., Tzanov, M., Van de Water, R. G., Walker, D., Walsh, N., Wang, H., Wang, Y., Yanagisawa, C., Yarritu, A., Yoo, J.
Publikováno v:
Phys. Rev. Lett. 123, 042502 (2019)
We report the first measurement of the neutron cross section on argon in the energy range of 100-800 MeV. The measurement was obtained with a 4.3-hour exposure of the Mini-CAPTAIN detector to the WNR/LANSCE beam at LANL. The total cross section is me
Externí odkaz:
http://arxiv.org/abs/1903.05276
Autor:
Casperson, R. J., Asner, D. M., Baker, J., Baker, R. G., Barrett, J. S., Bowden, N. S., Brune, C., Bundgaard, J., Burgett, E., Cebra, D. A., Classen, T., Cunningham, M., Deaven, J., Duke, D. L., Ferguson, I., Gearhart, J., Geppert-Kleinrath, V., Greife, U., Grimes, S., Guardincerri, E., Hager, U., Hagmann, C., Heffner, M., Hensle, D., Hertel, N., Higgins, D., Hill, T., Isenhower, L. D., King, J., Klay, J. L., Kornilov, N., Kudo, R., Laptev, A. B., Loveland, W., Lynch, M., Lynn, W. S., Magee, J. A., Manning, B., Massey, T. N., McGrath, C., Meharchand, R., Mendenhall, M. P., Montoya, L., Pickle, N. T., Qu, H., Ruz, J., Sangiorgio, S., Schmitt, K. T., Seilhan, B., Sharma, S., Snyder, L., Stave, S., Tate, A. C., Tatishvili, G., Thornton, R. T., Tovesson, F., Towell, D. E., Towell, R. S., Walsh, N., Watson, S., Wendt, B., Wood, L., Yao, L., Younes, W.
The normalized $^{238}$U(n,f)/$^{235}$U(n,f) cross section ratio has been measured using the NIFFTE fission Time Projection Chamber from the reaction threshold to $30$~MeV. The fissionTPC is a two-volume MICROMEGAS time projection chamber that allows
Externí odkaz:
http://arxiv.org/abs/1802.08721
Autor:
Geppert-Kleinrath, V., Tovesson, F., Barrett, J. S., Bowden, N. S., Bundgaard, J., Casperson, R. J., Cebra, D. A., Classen, T., Cunningham, M., Duke, D. L., Gearhart, J., Greife, U., Guardincerri, E., Hagmann, C., Heffner, M., Hensle, D., Higgins, D., Isenhower, L. D., King, J., Klay, J. L., Loveland, W., Magee, J. A., Manning, B., Mendenhall, M. P., Ruz, J., Sangiorgio, S., Schmitt, K. T., Seilhan, B., Snyder, L., Tate, A. C., Towell, R. S., Walsh, N., Watson, S., Yao, L., Younes, W., Leeb, H.
Publikováno v:
Phys. Rev. C 99, 064619 (2019)
Fission fragment angular distributions can provide an important constraint on fission theory, improving predictive fission codes, and are a prerequisite for a precise ratio cross section measurement. Available anisotropy data is sparse, especially at
Externí odkaz:
http://arxiv.org/abs/1710.00973
Publikováno v:
Journal of Synchrotron Radiation; Sep2024, Vol. 31 Issue 5, p1382-1392, 11p
