Gamma Ray Production Cross Section from Energetic Neutron Inelastic Scattering for Methodical Improvements in Planetary Gamma-ray Spectroscopy
Gamma Ray Production Cross Section from Energetic Neutron Inelastic Scattering for Methodical Improvements in Planetary Gamma-ray Spectroscopy

Author:

Publisher:

Published: 1991

Total Pages: 11

ISBN-13:

DOWNLOAD EBOOK

Planetary Gamma ray spectroscopy can be used to chemically analyze the top soil from planets in future planetary missions. The production from inelastic neutron interaction plays an effective role in the determination on the C and H at the surface. The gamma ray production cross section from the strongest lines excited in the neutron bombardment of Fe have been measured by the use of a time analyzed quasi-mono-energetic neutron beam and a high purity germanium detector. The results from En=6.5, 32, 43, and 65 MeV are presented.

Measurement of Gamma-ray Production Cross Sections for Nitrogen and Oxygen
Measurement of Gamma-ray Production Cross Sections for Nitrogen and Oxygen

Author: Victor John Orphan

Publisher:

Published: 1969

Total Pages: 114

ISBN-13:

DOWNLOAD EBOOK

A gamma-ray production cross section measurement facility is described in this report. This facility uses a LINAC as a neutron source and a Ge(Li) as the gamma detector. The facility was used to measure the gamma-ray production cross sections of nitrogen and oxygen for incident neutron energies of up to 16 MeV. The results are tabulated, graphed, and compared with other measurements. (Author).

Integral Measurements to Test Neutron Scattering and Gamma-Ray Production Cross Sections for Be, C, N, H2O, and Fe
Integral Measurements to Test Neutron Scattering and Gamma-Ray Production Cross Sections for Be, C, N, H2O, and Fe

Author: L Harris (Jr)

Publisher:

Published: 1975

Total Pages: 304

ISBN-13:

DOWNLOAD EBOOK

Incident-neutron-energy-dependent measurements of scattered neutrons and secondary gamma rays for small samples of Be, C, N, H2O, and Fe have been performed at four scattering angles (30, 55, 90 and 125 degrees). The pulsed-white-neutron source, time-of-flight (TOF) method, and NE-213 detector with pulse-shape discrimination, three-parameter data acquisition with an online computer and spectrum unfolding were used to measure incident-neutron-energy-dependent, count rates and energy spectra of scattered neutrons (E sub n> 1 MeV) and secondary gamma rays (E sub gamma> 1 MeV) for incident neutron energies from 2 to 20 MeV. The measurements provide high sensitivity tests for integral and differential neutron scattering and gamma-ray production cross sections when compared with appropriate transport calculations. Differences between measurements and calculations should be interpretable in terms of specific cross-section deficiencies at well-defined incident-neutron energies from 2 to 20 MeV. The source spectrum of neutrons incident on the samples was measured by TOF using the NE-213 detector. (Author).