Validating TRANSP simulations using neutron emission spectroscopy with dual sight lines

Hellesen, C.; Sundén, E. A.; Conroy, S.; Ericsson, G.; Giacomelli, L.; Hjalmarsson, A.; Johnsson, M. G.; Källne, J.; Ronchi, E.; Weiszflog, M.; Ballabio, L.; Gorini, G.; Tardocchi, M.; Voitsekhovitch, I.; JET-EFDA Contributors
October 2008
Review of Scientific Instruments;Oct2008, Vol. 79 Issue 10, p10E510
Academic Journal
A method to generate modeled neutron spectra from bulk and fast ion distributions simulated by TRANSP has been developed. In this paper, modeled data generated from fuel ion distrubutions modeled with TRANSP is compared to measured data from two neutron spectrometers with different lines of sight; TOFOR with a radial one and the MPRu with a tangential one. The information obtained from the analysis of the measured neutron spectra such as the relative intensity of the emission from different ion populations places additional constraints on the simulation and can be used to adjust the parameters of the simulation.


Related Articles

  • Multiscale features of density and frequency spectra from nonlinear gyrokinetics. Görler, T.; Jenko, F. // Physics of Plasmas;Oct2008, Vol. 15 Issue 10, p102508 

    Gyrokinetic turbulence simulations covering both electron and ion spatio-temporal scales self-consistently are presented. It is found that for experimentally realistic transport levels at long wavelengths, electron temperature gradient modes may yield substantial or even dominant high-wavenumber...

  • PERFORMANCE OF A NEUTRON SPECTROMETER BASED ON A PIN DIODE. Agosteo, S.; D'Angelo, G.; Fazzi, A.; Para, A. Foglio; Pola, A.; Ventura, L.; Zotto, P. // Radiation Protection Dosimetry;2005, Vol. 116 Issue 1-4, p180 

    The neutron spectrometer discussed in this work consists of a PIN diode coupled with a polyethylene converter. Neutrons are detected through the energy deposited by recoil-protons in silicon. The maximum detectable energy is ∼6 MeV and is imposed by the thickness of the fully depleted layer...

  • Analysis of Compact Cylindrical Wire Array Implosions with Brass and also by Alternating Brass and Al wires on the 1-MA COBRA Generator. Ouart, N. D.; Yilmaz, M. F.; Safronova, A. S.; Kantsyrev, V. L.; Esaulov, A. A.; Williamson, K. M.; Osborne, G. C.; Shrestha, I.; Weller, M. E.; McBride, R. D.; Knapp, P. F.; Bell, K. S.; Pikuz, S. A.; Shelkovenko, T. A.; Greenly, J. B.; Hammer, D. A.; Kusse, B. R. // AIP Conference Proceedings;1/21/2009, Vol. 1088 Issue 1, p65 

    Implosions from compact cylindrical wire arrays (CCWA) with mid-Z and low-Z wires were carried out on the 1-MA COBRA generator at Cornell University. In particular, the CCWA used either Brass 310 (70% Cu, 30% Zn) wires or a combination of Brass 310 and Al 5056 (95% Al, 5% Mg) wires arranged in...

  • Triple-path collector optics for grazing incident x-ray emission spectrometer. Tokushima, T.; Horikawa, Y.; Shin, S. // Review of Scientific Instruments;Jul2011, Vol. 82 Issue 7, p073108 

    A new type of collector optics was developed for grazing incident x-ray emission spectrometer. The collector optics used two cylindrical mirrors to add two extra light paths while keeping the center light path that directly illuminates the grating. The design and properties of the spectrometer...

  • Exploring the dynamics of reaction N+SiH4 with crossed molecular-beam experiments and quantum-chemical calculations. Lu, I-Chung; Chen, Wei-Kan; Chaudhuri, Chanchal; Huang, Wen-Jian; Lin, Jim J.; Lee, Shih-Huang // Journal of Chemical Physics;11/7/2008, Vol. 129 Issue 17, p174304 

    We investigated the reaction N(4S,2D,2P)+SiH4 in crossed molecular beams at a collision energy of 4.7 kcal mol-1 with a time-of-flight mass spectrometer and selective photoionization. Ion signals were observed at m/z=42–45, associated with two product channels, HSiNH/SiNH2+H+H and...

  • Development of a Methodology for Analysis of the Fe-56 ENDF-B/VI Cross Sections with a Time-of-Flight Experiment. Wenner, Michael T.; Haghighat, Alireza; Adams, James M.; Carlson, Allan D.; Grimes, Steven M.; Massey, Thomas N. // AIP Conference Proceedings;2005, Vol. 769 Issue 1, p507 

    This paper discusses a methodology developed for analysis of a time-of-flight (TOF) experiment performed for examination of iron cross sections. The methodology combines measurements from several experimental setups and Monte Carlo simulations. Neutron TOF spectra are obtained via the spherical...

  • Thermodynamic analysis of spectra. Mitchell, G. E.; Shriner, J. F. // AIP Conference Proceedings;4/4/2008, Vol. 995 Issue 1, p185 

    Although random matrix theory had its initial application to neutron resonances, there is a relative scarcity of suitable nuclear data. The primary reason for this is the sensitivity of the standard measures used to evaluate spectra—the spectra must be essential pure (no state with a...

  • Ab initio molecular dynamics simulation of liquid water and water–vapor interface. Vassilev, Peter; Hartnig, Christoph; Koper, Marc T. M.; Frechard, Fre´de´ric; van Santen, Rutger A. // Journal of Chemical Physics;12/1/2001, Vol. 115 Issue 21, p9815 

    The results of ab initio molecular dynamics simulations of liquid water and liquid water–vapor interface using the Perdew-Wang 91 (PW91) exchange-correlation functional are presented. The structural and transport properties of liquid water are comparable to the previous results using...

  • The calculation of the YALINA BOOSTER zero power sub critical assembly driven by external neutron sources: Brazillian contribution. Carluccio, Thiago; Rossi, Pedro Carlos Russo; Maiorino, José Rubens // AIP Conference Proceedings;8/10/2011, Vol. 1351 Issue 1, p387 

    The YALINA-Booster is an experimental zero power Accelerator Driven Reactor (ADS), which consists of a sub-critical assemby driven by external neutron sources. It has a fast spectrum booster zone in the center, surrounded by a thermal one. The sub-critical core is driven by external neutron...


Read the Article


Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics