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Prompt neutron - Wikipedia, the free encyclopedia
In nuclear engineering, a prompt neutron is a neutron immediately emitted by a nuclear fission event, as opposed to a delayed neutron which is emitted by one of the fission products anytime from a f...
en.wikipedia.org/wiki/Prompt_neutron |
Prompt Neutron Activation Analysis (PGNAA); Ian Garrick-Bethell; A Report Presented; Neutron Activation Analysis IAP Course 12.091: January 19, 2005 ... Applications; •Water on Mars by prompt gamma ray radiation; •See Maps of Subsurface Hydrogen from the High Energy Neutron Detector, Mars Odyssey Science,Vol297,
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The sample is continuously irradiated with a beam of neutrons. The constituent elements of the sample absorb some of these neutrons and emit prompt gamma rays which are measured with a high-resolution gamma-ray spectrometer. ... The energies of these gamma rays identify the neutron-capturing elements, while the intensities...
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Macroscopic boron analysis in various samples is carried out at the prompt gamma neutron activation analysis (PGNAA) facility. A beam of thermal neutrons is extracted from beneath the MITR-II core and filtered by single crystal sapphire ingots.
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The neutron energy spectrum from spontaneous fission of 252Cf is analysed in the framework of a complex cascade evaporation model up to 30 MeV in comparison with recent experimental results.
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Detection of pulsed, bremsstrahlung-induced, prompt neutron capture gamma-rays with HPGe detector ... Spectrometry is performed by analyzing the photoneutron-induced prompt gamma-rays acquired between accelerator pulses with a unique, high-purity germanium (HPGe) gamma-ray detection system using a modified transistor...
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3. NATURE OF PHYSICAL PROBLEM SOLVED - The program calculates decay constants and the population of the fundamental prompt neutron mode extrapolated to initial time, using pulsed neutron experimental data.
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Technical Abstract: Prompt-gamma neutron activation analysis (PGNAA) is used for the non-invasive measurement of human body composition. Advancements in portable, compact neutron generator design have made those devices attractive as neutron sources.
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by: S Turhan, H Yucel, A Demirbas ... Journal of Radioanalytical and Nuclear Chemistry, Vol. 262, No. 3., 661. ... CiteULike is a free online bibliography manager. Register and you can start organising your references online.
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