Search Results - "Cherepy, N. J"

Bismuth-loaded plastic scintillators for gamma-ray spectroscopy by Rupert, B. L, Cherepy, N. J, Sturm, B. W, Sanner, R. D, Payne, S. A

“…Polyvinylcarbazole polymer scintillators with high loading of a bismuth organometallic exhibit good light yields, and are found to be capable of gamma-ray…”
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Beta Radiation Hardness of GYGAG(Ce) Transparent Ceramic Scintillators by Jarrell, J. T., Cherepy, N. J., Seeley, Z. M., Murphy, J. W., Swanberg, E. L., Voss, L. F., Frye, C. D., Stoyer, M. A., Henderson, R. A., O'Neal, S. P., Nikolic, R. J.

“…GYGAG(Ce) transparent ceramic garnet scintillators were irradiated with electrons from 0.5 to 2 MeV with fluences from <inline-formula> <tex-math…”
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Homogeneity of Gd-based garnet transparent ceramic scintillators for gamma spectroscopy by Seeley, Z.M., Cherepy, N.J., Payne, S.A.

“…Transparent polycrystalline ceramic scintillators based on the composition Gd1.49Y1.49Ce0.02Ga2.2Al2.8O12 are being developed for gamma spectroscopy detectors…”
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Bridgman growth of large SrI2:Eu2+ single crystals: A high-performance scintillator for radiation detection applications by Boatner, L.A., Ramey, J.O., Kolopus, J.A., Hawrami, R., Higgins, W.M., van Loef, E., Glodo, J., Shah, K.S., Rowe, Emmanuel, Bhattacharya, Pijush, Tupitsyn, Eugene, Groza, Michael, Burger, Arnold, Cherepy, N.J., Payne, S.A.

“…Single-crystal strontium iodide (SrI2) doped with relatively high levels (e.g., 3–6%) of Eu2+ exhibits characteristics that make this material superior, in a…”
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Development of Transparent Ceramic Ce-Doped Gadolinium Garnet Gamma Spectrometers by Cherepy, N. J., Seeley, Z. M., Payne, S. A., Beck, P. R., Drury, O. B., O'Neal, S. P., Figueroa, K. M., Hunter, S., Ahle, L., Thelin, P. A., Stefanik, T., Kindem, J.

“…Transparent polycrystalline ceramic scintillators based on the garnet structure and incorporating gadolinium for high stopping power are being developed for…”
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Phase stabilization in transparent Lu2O3:Eu ceramics by lattice expansion by Seeley, Z.M., Dai, Z.R., Kuntz, J.D., Cherepy, N.J., Payne, S.A.

“…► Europium segregates from Lu2O3:Eu during processing of transparent ceramics. ► High concentrations of Eu at grain triple points precipitates into a secondary…”
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Preparation, structure and scintillation of cesium hafnium chloride bromide crystals by Rowe, E., Goodwin, W.B., Bhattacharya, P., Cooper, G., Schley, N., Groza, M., Cherepy, N.J., Payne, S.A., Burger, A.

“…•Single crystal X-ray diffraction showed that the structure was isostructural to the one grown Cs2HfCl6 crystals exhibiting the cubic K2PtCl6–type crystal…”
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Design of a Facility for Measuring Scintillator Non-Proportionality by Choong, W.-S., Vetter, K.M., Moses, W.W., Hull, G., Payne, S.A., Cherepy, N.J., Valentine, J.D.

“…While the original Compton coincidence technique provided accurate measurements of electron response in scintillators, the data rate was low and measurements…”
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New Plastic Scintillators for Gamma Spectroscopy, Neutron Detection and Imaging by Cherepy, N.J., Martinez, H.P., Sanner, R.D., Beck, P.R., Drury, O.B., Swanberg, E.L., Payne, S.A., Hurlbut, C.R., Morris, B.

“…We are working on scale up of several new plastic scintillator compositions. One composition uses Iridium complex fluors to obtain up to 3x higher light yields…”
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Rapid-Flow Resonance Raman Spectroscopy of Bacterial Photosynthetic Reaction Centers by SHREVE, A. P, CHEREPY, N. J, FRANZEN, S, BOXER, S. G, MATHIES, R. A

“…Rapid-flow resonance Raman vibrational spectra of bacterial photosynthetic reaction centers from the R-26 mutant of Rhodobacter sphaeroides have been obtained…”
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Measuring the dependence of the decay curve on the electron energy deposit in NaI(Tl) by Choong, W.-S., Bizarri, G., Cherepy, N.J., Hull, G., Moses, W.W., Payne, S.A.

“…We report on the first measurement of the decay times of NaI(Tl) as a function of the deposited electron energy. It has been suggested that the decay curve…”
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Progress in Studying Scintillator Proportionality: Phenomenological Model by Bizarri, G., Cherepy, N.J., Choong, W.S., Hull, G., Moses, W.W., Payne, S.A., Singh, J., Valentine, J.D., Vasilev, A.N., Williams, R.T.

“…We present a model to describe the origin of non-proportional dependence of scintillator light yield on the energy of an ionizing particle. The…”
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Double Salts Iodide Scintillators: Cesium Barium Iodide, Cesium Calcium Iodide, and Barium Bromine Iodide by Rowe, E., Tupitsyn, E., Wiggins, B., Bhattacharya, P., Matei, L., Groza, M., Buliga, V., Burger, A., Beck, P., Cherepy, N.J., Payne, S.A.

“…In this study we review the state‐of‐the‐art for double salt iodide scintillators, in particular cesium barium iodide (CBI), cesium calcium iodide (CCI) and…”
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A New Lanthanide Activator for Iodide Based Scintillators by Rowe, E., Bhattacharya, P., Tupitsyn, E., Groza, M., Burger, A., Cherepy, N. J., Payne, S. A., Sturm, B. W., Pedrini, C.

“…In this study we report for the first time that Yb 2+ is an efficient and fast activator in iodide scintillator crystals. In both SrI 2 and CsBa 2 I 5 , Yb 2+…”
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Comparative gamma spectroscopy with SrI2(Eu), GYGAG(Ce) and Bi-loaded plastic scintillators by Cherepy, N J, Payne, S A, Sturm, B W, Kuntz, J D, Seeley, Z M, Rupert, B L, Sanner, R D, Drury, O B, Hurst, T A, Fisher, S E, Groza, M, Matei, L, Burger, A, Hawrami, R, Shah, K S, Boatner, L A

“…We are developing new scintillator materials that offer potential for high resolution gamma ray spectroscopy at low cost. Single crystal SrI 2 (Eu) offers ~3%…”
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On the Mn4+ R-line emission intensity and its tunability in solids by Brik, M.G., Beers, W.W., Cohen, W., Payne, S.A., Cherepy, N.J., Piasecki, M., Srivastava, A.M.

“…The spectroscopic properties of Mn4+ ions in solids are analyzed to establish key parameters that are responsible for the energy and the intensity of the…”
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New red phosphor ceramic K2SiF6:Mn4 by Osborne, R.A., Cherepy, N.J., Seeley, Z.M., Payne, S.A., Drobshoff, A.D., Srivastava, A.M., Beers, W.W., Cohen, W.W., Schlagel, D.L.

“…A new transparent ceramic phosphor for use in LED lighting has been fabricated. The previously reported and optimized narrow-emitting red phosphor, K2SiF6:Mn4+…”
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Optical spectrum of Mn4+ in Y2Ti2-xSnxO7 pyrochlore solid solution: R-line energy and intensity by Srivastava, A. M., Brik, M. G., Comanzo, H. A., Beers, W. W., Cohen, W., Cherepy, N. J., Payne, S. A.

“…We report we investigated the luminescence of the Mn4+ ions in Y2Ti2-xSnxO7 (x = 0, 0.5, 1.0, 2.0) pyrochlore solid solutions and compared the results with the…”
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Transparent Lu2O3:Eu ceramics by sinter and HIP optimization by Seeley, Z.M., Kuntz, J.D., Cherepy, N.J., Payne, S.A.

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New red phosphor ceramic K2SiF6:Mn4 by Osborne, R. A., Cherepy, N. J., Seeley, Z. M., Payne, S.A. A., Drobshoff, A. D., Srivastava, A. M., Beers, W. W., Cohen, W. W., Schlagel, D. L.

“…We report a new transparent ceramic phosphor for use in LED lighting has been fabricated. The previously reported and optimized narrow-emitting red phosphor,…”
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