Search Results - "Packer, L W"

A COMPARISON OF OXIDE DECAY HEAT SIMULATIONS AND NUCLEAR DATA LIBRARIES WITH FUSION IRRADIATION EXPERIMENTS by Packer, L W, Angelone, M, Gilbert, M R, Loreti, S, Nobs, C R, Pillon, M, Sublet, J-C, Vilkhivskaya, O

“…We compare existing experimental decay heat data sets measured at the JAEA fusion neutron source (FNS), which employed a fast extraction rabbit system that in…”
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Tritium self-sufficiency time and inventory evolution for solid-type breeding blanket materials for DEMO by Packer, L.W., Pampin, R., Zheng, S.

“…One of the primary functions of a fusion blanket is to generate enough tritium to make a fusion power plant (FPP) self-sufficient. To ensure that there is…”
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Neutron-induced dpa, transmutations, gas production, and helium embrittlement of fusion materials by Gilbert, M.R., Dudarev, S.L., Nguyen-Manh, D., Zheng, S., Packer, L.W., Sublet, J.-Ch

“…•Neutron irradiation conditions are calculated for a 2009 DEMO concept model.•Spectra and fluxes converted to dpa to highlight variation and…”
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Application of VERDI detectors for neutron fluence measurements during the JET 2019 Deuterium-Deuterium campaign by Savva, M.I., Vasilopoulou, T., Stamatelatos, I.E., Mergia, K., Messoloras, S., Michelakaki, I., Ghani, Z., Nobs, C.R., Packer, L.W.

“…The Novel Neutron Detector for Fusion (VERDI) project aims to develop a passive detector which will provide a robust approach for neutron detection in current…”
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Tritium self-sufficiency of HCPB blanket modules for DEMO considering time-varying neutron flux spectra and material compositions by Aures, A., Packer, L.W., Zheng, S.

“…•Simulations on the tritium breeding performance of HCPB blanket modules were done.•MCNP5 and FISPACT were used for coupled transport and activation…”
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Effects of neutron irradiation on the brittle to ductile transition in single crystal tungsten by Abernethy, R.G., Gibson, J.S.K.-L., Giannattasio, A., Murphy, J.D., Wouters, O., Bradnam, S., Packer, L.W., Gilbert, M.R., Klimenkov, M., Rieth, M., Schneider, H.-C., Hardie, C.D., Roberts, S.G., Armstrong, D.E.J.

“…Only limited data exist on the effect of neutron irradiation on the brittle to ductile transition (BDT) in tungsten. This work investigates the increase in…”
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Computational evaluation of N-16 measurements for a 14 MeV neutron irradiation of an ITER first wall component with water circuit by Nobs, C.R., Naish, J., Packer, L.W., Worrall, R., Angelone, M., Colangeli, A., Loreti, S., Pillon, M., Villari, R.

“…•Two methodologies have been validated for water activation assessment using experimental data collected at the FNG•For the O-16 (n,p) reaction there is good…”
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Integration of fluid dynamics into activation calculations for fusion by Berry, T.A., Nobs, C.R., Dubas, A., Worrall, R., Eade, T., Naish, J., Packer, L.W.

“…•Two fluid activation codes are benchmarked and compared for water activation•CFD calculations are integrated to probe fluid behaviour in circuit…”
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Measurement of delayed neutron emission from water activated by 14 MeV neutrons in a FW mock-up of ITER by Angelone, M., Pillon, M., Loreti, S., Colangeli, A., Mazzitelli, G., Del Prete, P., Villari, R., Naish, J., Nobs, C.R., Packer, L.W.

“…•Water activated by 14 MeV neutrons emits both high energy gammas from 16N and delayed neutrons from 17N.•These sources of radiation represent one of the main…”
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Studies on the behaviour of titanium activation foils during long-term exposure at the JET tokamak by Wójcik-Gargula, A., Rubel, M., Batistoni, P., Bekris, N., Colling, B., Dutkiewicz, E., Laas, T., Nobs, C.R., Paju, J., Packer, L.W., Perzanowski, M., Petersson, P., Priimets, J., Vasilopoulou, T.

“…•First-ever long-term direct exposure of Ti in the tokamak environment.•Identification of different stages of Ti degradation up to complete…”
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The development, testing and comparison of unfolding methods in SPECTRA-UF for neutron spectrometry by Worrall, R., Colling, B., Gilbert, M.R., Litherland-Smith, E., Nobs, C.R., Packer, L.W., Wilson, C., Zohar, A.

“…•SPECTRA-UF has been developed as a unified framework of unfolding methods.•Framework include UF_G and UF_M based on the mathematics of GRAVEL and…”
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A neutron poison tritium breeding controller applied to a water cooled fusion reactor model by Morgan, L.W.G., Packer, L.W.

“…•The issue of a potentially producing a large tritium surplus inventory, within a solid breeder, is addressed.•A possible solution to this problem is presented…”
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Improved modelling of the neutron spectrum for the ASP accelerator by Lilley, S., Packer, L.W., Pampin, R., Gilbert, M.

“…•An improved estimate of the ASP neutron spectrum is calculated using unfolding methods.•Zr and Nb activation foil measurements used to calculate mean neutron…”
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Backwards extrapolation activation diagnostics and their dynamic range for pulsed neutron source measurements by Packer, L.W., Allan, S., Bradnam, S.C., Jednorog, S., Łaszyńska, E., Roberts, N.J., Wilson, C., Worrall, R.

“…Activation materials implanted within radiation detectors can be used to measure pulsed neutron fields. This work develops an instrument concept with the aim…”
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In-vessel calibration of JET neutron detectors: Comparison of methods of neutron emission rate determination by Laszynska, E., Batistoni, P., Cufar, A., Ghani, Z., Jednorog, S., Packer, L.W., Popovichev, S.

“…•Two methods of neutron emission rate determination have been described.•The neutron emission rates of neutron generator have been cross-checked.•The impact of…”
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Comparison between measurement and calculations for a 14 MeV neutron water activation experiment by Andreoli, F., Angelone, M., Colangeli, A., Besi Vetrella, U., Fiore, S., Flammini, D., Del Prete, P., Loreti, S., Mariano, G., Mazzitelli, G., Moro, F., Pagano, G., Pietropaolo, A., Pillon, M., Terranova, N., Villari, R., Naish, J., Nobs, C.R., Packer, L.W.

“…The nuclear heat loads due to gamma rays emitted from the decay of 16 N and delayed neutrons from 17 N, generated by the activation of water in cooling…”
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Benchmarking comparison and validation of MCNP photon interaction data by Colling, Bethany, Kodeli, I., Lilley, S., Packer, L.W.

“…The objective of the research was to test available photoatomic data libraries for fusion relevant applications, comparing against experimental and…”
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The development of a fusion specific depletion interface code—FATI by Morgan, L.W.G., Packer, L.W., Haeck, W., Pasley, J.

“…•A new depletion code, FATI, has been developed for fusion applications.•The code has been benchmarked against another well tested/benchmarked code, VESTA.•The…”
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Recent integral cross section validation measurements at the ASP facility by Packer, L.W., Hughes, S., Gilbert, M., Lilley, S., Pampin, R.

“…•Recent results of integral cross section measurements at ASP obtained using high purity elemental are detailed.•Details of the data processing tools and…”
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Neutron spectrum unfolding for the development of a novel neutron detector for fusion by Nobs, C.R., Packer, L.W., Batistoni, P., Colling, B., Ghani, Z., Gilbert, M.R., Loreti, S., Mergia, K., Messoloras, S., Michelakaki, I., Pillon, M., Savva, M.I., Stamatelatos, I.E., Triantou, K., Vasilopoulou, T.

“…•This paper details the results from an initial experiment performed at the FNG with prototype detector capsules, comprising of a graphite capsule containing a…”
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