Neutron Scattering at 2.45 Mev by a Time-of-Flight Method

Cranberg, Lawrence; Levin, J. S.

doi:10.1103/physrev.103.343

Cited by 159 publications

(14 citation statements)

References 14 publications

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“…14 The spectrometer is used in conjunction with neutron time-offlight techniques developed by Cranberg and Levin. 15 This system allows the removal, from the observed spectra, of y rays produced in the center crystal by the background neutrons. Also, the anticoincidence feature of the spectrometer largely eliminates the pulse-height distribution produced by y rays with less than full energy loss in the central Nal(Tl) crystal.…”

Section: Methodsmentioning

confidence: 99%

Angular Distributions of Gamma Rays Produced in theY89(n,n′γ)
Buchanan¹,
Mathur²,
Tucker³
et al. 1967
Phys. Rev.
18
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0
0
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The differential cross sections for the production of y rays from the Y S9 (n,n'y)Y m reaction have been measured at incident neutron energies of 3.0, 3.25,3.5,4.0,4.1, and 4.5 MeV. At the highest incident neutron energy, y rays with energies of 0.71, 0.908,1.31,1.51,1.62,1.75,1.95,1.98, 2.10, 2.46, 2.58, 2.70, 2.86, 3.09, 3.49, and 3.85 MeV have been observed. Angular distribution of these y rays have been measured at neutron energies of 3.25 and 4.0 MeV. The distributions have also been calculated theoretically on the basis of the Satchler formalism using the computer program TRANSEC developed at this laboratory. A comparison between the experimental and theoretical cross sections has led to spin assignments for the 1.51-, 1.75-, 2.22-, 2.53-, 2.86-, 3.09-, and 3.49-MeV levels in the Y 89 nucleus. The 7-ray spectra indicate the existence of an excited level at 3.85 MeV.

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Section: Methodsmentioning

confidence: 99%

Angular Distributions of Gamma Rays Produced in theY89(n,n′γ)
Buchanan¹,
Mathur²,
Tucker³
et al. 1967
Phys. Rev.
18
0
0
0
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“…Later work, 26 The calculated and experimental values for the entrance channel are shown in Fig. 11.…”

Section: Bi-209mentioning

confidence: 99%

Calculations of Inelastic Scattering of Neutrons by Heavy Nuclei

Auerbach

Moore

1964

Phys. Rev.

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Neutron-scattering cross-section data between 0.1 and 3.0 MeVforU, Th,Bi, Pb, Au, W,and Ta have been fitted using a local, spherical, spin-dependent optical potential with a minimum number of parameters. Total cross sections and differential elastic angular distributions, corrected to include compound elastic scattering, are used. With the ''entrance-channel" parameters thus determined, the Hauser-Feshbach statistical model gives reasonable predictions of the cross sections for inelastic scattering of neutrons by U 238 , Th 232 , Bi 209 , Pb 208 , Au 197 , W 184 , and Ta 181 . The latitude in fitting entrance-channel data allowed by the optical-model parameters is sufficient to mask effects arising from nonlocality, deformation, and width distributions. To a very high degree, this relatively simple model is shown to be

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“…Measurements and theoretical studies of the neutron detection efficiency and response functions of organic scintillators have been made by Cranberg and Levin (1956) Broek and Anderson (1960) have used relatively small /rafls-stilbene crystals for measuring neutron spectra in the range 1-10 MeV. The two main effects which distort the scintillation pulse spectrum from that ex pected for single (n,p) scattering are the wall effect (iv) and the second scattering effect (iii).…”

Section: (Iii) For Neutrons Incident On a Small Organic Scintillatormentioning

confidence: 99%

Applications of Organic Scintillators

Birks

1964

The Theory and Practice of Scintillation Counting

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Neutron Scattering at 2.45 Mev by a Time-of-Flight Method

Cited by 159 publications

References 14 publications

Angular Distributions of Gamma Rays Produced in theY89(n,n′γ)
Buchanan¹,
Mathur²,
Tucker³
et al. 1967
Phys. Rev.
18
0
0
0
View full text Add to dashboard Cite

Angular Distributions of Gamma Rays Produced in theY89(n,n′γ)
Buchanan¹,
Mathur²,
Tucker³
et al. 1967
Phys. Rev.
18
0
0
0
View full text Add to dashboard Cite

Calculations of Inelastic Scattering of Neutrons by Heavy Nuclei

Applications of Organic Scintillators

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Neutron Scattering at 2.45 Mev by a Time-of-Flight Method

Cited by 159 publications

References 14 publications

Angular Distributions of Gamma Rays Produced in theY89(n,n′γ)Buchanan1, Mathur2, Tucker3 et al. 1967Phys. Rev.18000View full textAdd to dashboardCite

Angular Distributions of Gamma Rays Produced in theY89(n,n′γ)Buchanan1, Mathur2, Tucker3 et al. 1967Phys. Rev.18000View full textAdd to dashboardCite

Calculations of Inelastic Scattering of Neutrons by Heavy Nuclei

Applications of Organic Scintillators

Contact Info

Product

Resources

About

Angular Distributions of Gamma Rays Produced in theY89(n,n′γ)
Buchanan¹,
Mathur²,
Tucker³
et al. 1967
Phys. Rev.
18
0
0
0
View full text Add to dashboard Cite

Angular Distributions of Gamma Rays Produced in theY89(n,n′γ)
Buchanan¹,
Mathur²,
Tucker³
et al. 1967
Phys. Rev.
18
0
0
0
View full text Add to dashboard Cite