Calibration of neutron-yield diagnostics in attenuating and scattering environments

Hahn, K. D.; Ruiz, C. L.; Cooper, G. W.; Nelson, A. J.; Chandler, G. A.; Leeper, R. J.; McWatters, B. R.; Smelser, R. M.; Torres, J. A.
October 2012
Review of Scientific Instruments;Oct2012, Vol. 83 Issue 10, p10D914
Academic Journal
We have performed absolute calibrations of a fusion-neutron-yield copper-activation diagnostic in environments that significantly attenuate and scatter neutrons. We have measured attenuation and scattering effects and have compared the measurements to Monte Carlo simulations using the Monte Carlo N-Particle code. We find that measurements and simulations are consistent within 10%.


Related Articles

  • Neutron metrology laboratory facility simulation. Pereira, Mariana; Salgado, Ana P.; Filho, Aidano S.; Pereira, Walsan W.; Patrão, Karla C. S.; Fonseca, Evaldo S. // Radiation Protection Dosimetry;Oct2014, Vol. 161 Issue 1-4, p153 

    The Neutron Low Scattering Laboratory in Brazil has been completely rebuilt. Evaluation of air attenuation parameters and neutron component scattering in the room was done using Monte Carlo simulation code. Neutron fields produced by referenced neutron source were used to calculate neutron...

  • IDEAS – a Monte Carlo simulation package for neutron-scattering instrumentation. Lee, W.-T.; Wang, X.-L.; Robertson, J.L.; Klose, F.; Rehm, Ch. // Applied Physics A: Materials Science & Processing;Dec2002 Supplement, Vol. 74 Issue 6, ps1502 

    Monte Carlo (MC) simulations are widely used in the design of neutron-scattering instruments. Several simulation packages have been developed in the past few years. We present here an analysis of the use of MC simulation techniques in neutron-scattering instrumentation. We also present IDEAS, an...

  • Optimizing Experiment Performance by Realistic Sample Simulations. Boin, Mirko; Wimpory, Robert C.; Woracek, Robin // Advanced Materials Research;2014, Vol. 996, p197 

    A simulation of realistic samples within a neutron scattering or imaging experiment has been created in order to support the accuracy, feasibility, and analysis of residual stress measurements as well as the development of novel experimental methods and instrument components. Covering the...

  • Determination of 241Am-Be Spectra using Bonner Sphere Spectrometer by Applying Shadow Cone Technique in Calibration. Khabaz, Rahim; Hakimabad, Hashem Miri // Journal of Applied Sciences;2011, Vol. 11 Issue 15, p2849 

    In present study, the neutron spectra of 241Am-Be measured with Bonner sphere method. The system was equipped with a BF3 thermal detector placed in the center of seven spheres with different diameter (from 8.89 to 30.48 cm). The energy response matrix of the system was calculated by using the...

  • The use of multichannel collimation in small-angle neutron scattering: a computer-simulation study. Falcão, A.N.; Margaça, F.M.A.; Carvalho, F.G. // Applied Physics A: Materials Science & Processing;Dec2002 Supplement, Vol. 74 Issue 6, ps1462 

    A Monte Carlo computer simulation was performed to evaluate the use of converging multichannel collimation in a small-angle neutron-scattering arrangement, giving guidelines for the construction of a first prototype. The neutron-absorbing efficiency as well as the divergence of the incoming beam...

  • Ferromagnetism and critical temperatures in dilute PdMn alloys. Parra, R. E.; González, A. C. // Journal of Applied Physics;4/15/1991, Vol. 69 Issue 8, p6138 

    Examines neutron-scattering and magnetization measurements on dilute palladium-manganese (Mn) alloys. Use of a magnetic environment model of ferromagnetism, atomic short-range order and Mn-Mn interactions; Use of the Monte Carlo simulation method for the calculation of temperatures; Fourier...

  • Semi-empirical relationship for photon buildup factor in soft tissue and water. Sardari, D.; Baradaran, S. // Radiation Protection Dosimetry;Dec2010, Vol. 142 Issue 2-4, p209 

    Buildup factor of gamma and X-ray photons in the energy range of 0.2–2 MeV in water and soft tissue is computed using Monte Carlo code MCNP4C. The results are compared with the buildup factor data of pure water. A new relationship estimating buildup factor as a function of penetration...

  • Study of the mechanism of muon-catalyzed t + t fusion reaction. Bogdanova, L.; Demin, D.; Filchenkov, V. // Physics of Atomic Nuclei;Jan2015, Vol. 78 Issue 1, p10 

    The mechanism for the muon catalyzed fusion reaction t + t → He + 2 n + 11.33 MeV is investigated. The model of the cascade reaction with He as an intermediate state is considered, both the ground and the first exited states being taken into account. The neutron energy spectrum measured...

  • Energy spectrum of thermonuclear neutrons Ballabio, L.; Gorini, G.; Kallne, J. // Review of Scientific Instruments;Jan1997, Vol. 68 Issue 1, p585 

    Investigates the neutron energy spectrum from deuterium-tritium and deuterium-deuterium reactions in a thermonuclear fusion plasma with the help of a combination of analytical and numerical methods. Moment calculation; Monte Carlo simulations; Interpolation formulas.


Read the Article


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

Try another library?
Sign out of this library

Other Topics