Author: Publisher:
ISBN:
Category :
Languages : en
Pages : 50
Book Description
NE-123 Detector Perturbations to Measured and Calculated Neutron and Gamma-ray Fluences in Liquid Air
Author: Dose and Flux Measurements on Godiva Radiation Effects Experiments
Author: Payne S. HarrisPublisher:
ISBN:
Category : Neutron flux
Languages : en
Pages : 24
Book Description
Calculation of Neutron and Gamma Ray Energy Spectra in the Californium Tank Experiment for Comparison with 2" X 2" NE-213 Detector Measurements
Author: Streaming of 14-MeV Neutrons Through an Iron Duct
Author: Publisher:
ISBN:
Category :
Languages : en
Pages :
Book Description
Neutron and gamma-ray energy spectra resulting from the streaming of 14 MeV neutrons through a 0.30-m-diameter duct (length-to-diameter ratio = 2.83) have been calculated using the Monte Carlo code MCNP. The calculated spectra are compared with measured data and data calculated previously using a combination of discrete ordinates and Monte Carlo methods. Comparisons are made at twelve detector locations on and off the duct axis for neutrons with energies above 850 keV and for gamma rays with energies above 750 keV. The neutron spectra calculated using MCNP agree with the measured data within approx. 5 to approx. 50%, depending on detector location and neutron energy. Agreement with the measured gamma-ray spectra is also within approx. 5 to approx. 50%. The spectra obtained with MCNP are also in favorable agreement with the previously calculated data and were obtained with less calculational effort.
Neutron Fluctuation Measurements at Oak Ridge National Laboratory
Author: Neutron Detector Perturbations
Author: S. H. FtichPublisher:
ISBN:
Category : Neutron flux
Languages : en
Pages : 54
Book Description
Summary of Measurements and Calculations of Neutron and Gamma-ray Emission Spectra from Spheres Pulsed with 14-MeV Neutrons
Author: Publisher:
ISBN:
Category :
Languages : en
Pages :
Book Description
A tabulation of the spherical assemblies for which the transport of 14-MeV neutrons have been measured using pulsed sphere and time-of-flight techniques is presented. The description of the measurements and their comparison with the predictions of LLNL Monte Carlo calculations using the ENDL and ENDF (III to V versions) libraries can be found in the publications listed in the references.
Guidelines for Radioelement Mapping Using Gamma Ray Spectrometry Data
Author: International Atomic Energy Agency. Nuclear Fuel Cycle and Materials SectionPublisher:
ISBN: 9789201083036
Category : Science
Languages : en
Pages : 173
Book Description
Radiation Detection and Measurement
Author: Glenn F. KnollPublisher:
ISBN: 9780471617617
Category : Nuclear counters
Languages : en
Pages : 754
Book Description
This new edition of the methods and instrumentation used in the detection of ionizing radiation has been revised and updated to reflect recent advances. It covers modern engineering practice, provides useful design information and contains an up-to-date review of the literature.
Measurement of Secondary Neutrons and Gamma Rays Produced by Neutron Interactions with Nitrogen and Oxygen Over the Incident Energy Range 1 to 20 MeV.
Author: Publisher:
ISBN:
Category :
Languages : en
Pages :
Book Description
The spectra of secondary neutrons and gamma rays produced by neutron interaction in thick samples (approximately 1 mean free path) of liquid nitrogen and liquid oxygen have been measured as a function of the incident neutron energy over the range 1 to 20 MeV. Data were taken for angles of 30$sup 0$, 55$sup 0$, 90$sup 0$, and 125$sup 0$. A linac (ORELA) was used as a neutron source with a 47-m flight path. Incident energy was determined by time-of-flight, while secondary spectra were determined by pulse-height unfolding techniques. The results of the measurements are presented in forms suitable for comparison to calculations based on the evaluated data files. (32 figures, 42 tables) (auth).