Author: Victor J. Orphan
Publisher:
ISBN:
Category :
Languages : en
Pages : 182
Book Description
The Linac time-of-flight technique has been used to measure the differential gamma-ray production cross sections for neutron interactions with natural Fe and Al in the neutron energy range 0.9 to 17 MeV. Ring-shaped scattering samples were placed at the terminus of a 51-meter neutron flight path at the Gulf Radiation Technology Linac facility. The gamma rays from (n, x gamma) reactions were detected with an 80-cc Ge(Li) detector placed on the centerline of the flight path so as to observe gamma rays emitted from the samples at an angle of about 125 degrees with respect to the incident neutron beam. This angle minimized the effect of gamma-ray anisotropy on the determination of the angle-integrated cross section. (Author).
Gamma-Ray Production Cross Sections for Iron and Aluminum
Author: Victor J. Orphan
Publisher:
ISBN:
Category :
Languages : en
Pages : 182
Book Description
The Linac time-of-flight technique has been used to measure the differential gamma-ray production cross sections for neutron interactions with natural Fe and Al in the neutron energy range 0.9 to 17 MeV. Ring-shaped scattering samples were placed at the terminus of a 51-meter neutron flight path at the Gulf Radiation Technology Linac facility. The gamma rays from (n, x gamma) reactions were detected with an 80-cc Ge(Li) detector placed on the centerline of the flight path so as to observe gamma rays emitted from the samples at an angle of about 125 degrees with respect to the incident neutron beam. This angle minimized the effect of gamma-ray anisotropy on the determination of the angle-integrated cross section. (Author).
Publisher:
ISBN:
Category :
Languages : en
Pages : 182
Book Description
The Linac time-of-flight technique has been used to measure the differential gamma-ray production cross sections for neutron interactions with natural Fe and Al in the neutron energy range 0.9 to 17 MeV. Ring-shaped scattering samples were placed at the terminus of a 51-meter neutron flight path at the Gulf Radiation Technology Linac facility. The gamma rays from (n, x gamma) reactions were detected with an 80-cc Ge(Li) detector placed on the centerline of the flight path so as to observe gamma rays emitted from the samples at an angle of about 125 degrees with respect to the incident neutron beam. This angle minimized the effect of gamma-ray anisotropy on the determination of the angle-integrated cross section. (Author).
In-beam Measurements of Inclusive Differential Cross Sections for the Production of Gamma Radiation from 30-67.5 MeV Protons on Thin Targets of Aluminum, Iron, Titanium, and Uranium
Author: Guy Alton Letteer
Publisher:
ISBN:
Category :
Languages : en
Pages : 300
Book Description
Publisher:
ISBN:
Category :
Languages : en
Pages : 300
Book Description
SB2. Experiment on Secondary Gamma-ray Production Cross Sections Arising from Thermal-neutron Capture in Each of 14 Different Elements Plus a Stainless Steel
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages :
Book Description
The experimental and calculational details for a CSEWG integral data testing shielding experiment are presented. This particular experiment measured the secondary gamma-ray production cross sections arising from thermal-neutron capture in iron, nitrogen, sodium, aluminum, copper, titanium, calcium, potassium, chlorine, silicon, ickel, zinc, barium, sulfur and a type 321 stainless steel. 1 figure, 30 tables (auth).
Publisher:
ISBN:
Category :
Languages : en
Pages :
Book Description
The experimental and calculational details for a CSEWG integral data testing shielding experiment are presented. This particular experiment measured the secondary gamma-ray production cross sections arising from thermal-neutron capture in iron, nitrogen, sodium, aluminum, copper, titanium, calcium, potassium, chlorine, silicon, ickel, zinc, barium, sulfur and a type 321 stainless steel. 1 figure, 30 tables (auth).
Nuclear Cross Sections and Technology
Author: Roald A. Schrack
Publisher:
ISBN:
Category : Cross sections (Nuclear physics)
Languages : en
Pages : 490
Book Description
Publisher:
ISBN:
Category : Cross sections (Nuclear physics)
Languages : en
Pages : 490
Book Description
Gamma Rays Resulting from Interactions of 14.7 Mev Neutrons with Magnesium, Aluminum, Calcium, Titanium and Iron
Author: William E. Thompson
Publisher:
ISBN:
Category :
Languages : en
Pages : 32
Book Description
The prompt gamma rays resulting from the interaction of 14.7 MeV neutrons with the nuclei of the elements magnesium, aluminum, calcium, titanium and iron have been investigated. Cross sections for the production of many of these gamma rays have been measured by observing them with a carefully shielded detector during neutron bombardment of a given elemental sample. It is found that the n, n'-gamma process predominates and that gamma rays resulting from the deexcitation of the lowest energy levels, with one or two notable exceptions, are generally most prominent. Other processes including n, p-gamma, n, alpha-gamma, and n, d-gamma are also observed. Some of the most improtant gamma rays are found to have the following elemental production cross sections (in millibarns per steradian at 90 deg): 1:37 Mev gamma ray from Mg, 30. 9= 3.1; 1.81 MeV gamma ray from Al, 13.7= 2.0; 3.73 Mev gamma ray from Ca, 9.0= 1.4; 0.99 Mev gamma ray from Ti, 51.9= 5.2; and 0.85 MeV gamma ray from Fe, 57.6= 5.8. (Author).
Publisher:
ISBN:
Category :
Languages : en
Pages : 32
Book Description
The prompt gamma rays resulting from the interaction of 14.7 MeV neutrons with the nuclei of the elements magnesium, aluminum, calcium, titanium and iron have been investigated. Cross sections for the production of many of these gamma rays have been measured by observing them with a carefully shielded detector during neutron bombardment of a given elemental sample. It is found that the n, n'-gamma process predominates and that gamma rays resulting from the deexcitation of the lowest energy levels, with one or two notable exceptions, are generally most prominent. Other processes including n, p-gamma, n, alpha-gamma, and n, d-gamma are also observed. Some of the most improtant gamma rays are found to have the following elemental production cross sections (in millibarns per steradian at 90 deg): 1:37 Mev gamma ray from Mg, 30. 9= 3.1; 1.81 MeV gamma ray from Al, 13.7= 2.0; 3.73 Mev gamma ray from Ca, 9.0= 1.4; 0.99 Mev gamma ray from Ti, 51.9= 5.2; and 0.85 MeV gamma ray from Fe, 57.6= 5.8. (Author).
Nuclear Cross Sections and Technology
Author: Roald Amundsen Schrack
Publisher:
ISBN:
Category : Cross sections (Nuclear physics)
Languages : en
Pages : 490
Book Description
Publisher:
ISBN:
Category : Cross sections (Nuclear physics)
Languages : en
Pages : 490
Book Description
NBS Special Publication
Author:
Publisher:
ISBN:
Category : Weights and measures
Languages : en
Pages : 500
Book Description
Publisher:
ISBN:
Category : Weights and measures
Languages : en
Pages : 500
Book Description
Gamma Rays from (n, N'gamma Rays) Interactions of 2.8 Mev Neutrons with Magnesium, Aluminum, Silicon, Titanium and Iron
Author: Ferdinand C. ENGESSER
Publisher:
ISBN:
Category :
Languages : en
Pages : 35
Book Description
The gamma rays resulting from (n, n' gamma ray) interactions of 2.8 MeV neutrons with the nuclei of the elements magnesium, aluminum, silicon, titanium and iron have been investigated. Cross sections for the production of many of these gamma rays are reported. The most important gamma ray from each element is found to have the following elemental production cross section in millibarns per steradian at 90 = 20 deg: 1.37 MeV gamma ray from Mg, 35.2 = 4.0; 1.01 MeV gamma ray from Al, 19.8 = 2.2; 1.78 MeV gamma ray from Si, 41.0 = 4.9; 0.99 MeV gamma ray from Ti, 74.0 = 9.0; and 0.85 MeV gamma ray from Fe, 96.5 = 11.5. Further, it is shown that a correlation appears to exist between the reduced quadrupole transition probability of a nuclear state and the excitation of that state by neutron inelastic scattering. (Author).
Publisher:
ISBN:
Category :
Languages : en
Pages : 35
Book Description
The gamma rays resulting from (n, n' gamma ray) interactions of 2.8 MeV neutrons with the nuclei of the elements magnesium, aluminum, silicon, titanium and iron have been investigated. Cross sections for the production of many of these gamma rays are reported. The most important gamma ray from each element is found to have the following elemental production cross section in millibarns per steradian at 90 = 20 deg: 1.37 MeV gamma ray from Mg, 35.2 = 4.0; 1.01 MeV gamma ray from Al, 19.8 = 2.2; 1.78 MeV gamma ray from Si, 41.0 = 4.9; 0.99 MeV gamma ray from Ti, 74.0 = 9.0; and 0.85 MeV gamma ray from Fe, 96.5 = 11.5. Further, it is shown that a correlation appears to exist between the reduced quadrupole transition probability of a nuclear state and the excitation of that state by neutron inelastic scattering. (Author).
Evaluation of Neutron and Gamma-ray-production Cross Sections for Natural Iron (ENDF/B-V MAT 1326)
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 41
Book Description
Publisher:
ISBN:
Category :
Languages : en
Pages : 41
Book Description
SB3. Experiment on Secondary Gamma-ray Production Cross Sections Averaged Over a Fast-neutron Spectrum for Each of 13 Different Elements Plus a Stainless Steel
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages :
Book Description
The experimental and calculational details for a CSEWG integral data testing shielding experiment are presented. This particular experiment measured the secondary gamma-ray production cross sections averaged over a fast-neutron spectrum for iron, oxygen, sodium, aluminum, copper, titanium, calcium, potassium, silicon, nickel, zinc, barium, sulfur, and a type 321 stainless steel. The gamma-ray production cross sections were binned into 0.5-MeV wide gamma-ray energy intervals. 29 tables, 1 figure (auth).
Publisher:
ISBN:
Category :
Languages : en
Pages :
Book Description
The experimental and calculational details for a CSEWG integral data testing shielding experiment are presented. This particular experiment measured the secondary gamma-ray production cross sections averaged over a fast-neutron spectrum for iron, oxygen, sodium, aluminum, copper, titanium, calcium, potassium, silicon, nickel, zinc, barium, sulfur, and a type 321 stainless steel. The gamma-ray production cross sections were binned into 0.5-MeV wide gamma-ray energy intervals. 29 tables, 1 figure (auth).