Neutron Spectrum of<sup>238</sup>PuO<sub>2</sub>

Herold, T.R.

doi:10.13182/nt68-a26347

Cited by 11 publications

(10 citation statements)

References 5 publications

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“…The total integrated values for each of these states are also shown in Fig. 2; they are 9.55 n/10 6 a for the 21 Ne ground state and 6.07, 1.62, and 0.094 n/10 6 a for the first three excited states. Thus a total of (17.33 ±4.0) n/10 6 « is obtained from The number of a particles per gram of plutonium 238 per second, the a-yield, is (Ref.…”

Section: Total Neutron Yieldmentioning

confidence: 96%

“…In Eq. (11), the neutron yield Yi and the a-yield Y a are given in N/s/g 238 Pu and a/s/g O(a, n) 21 Ne reactions state of the recoil. The area under each curve represents the number of neutrons emitted per a particle interacted.…”

Section: Total Neutron Yieldmentioning

confidence: 99%

“…It has been explained (Ref. 21) that these low-energy neutrons are due to the scattering and multiplication in the fuel itself.…”

Section: Total Neutron Yieldmentioning

confidence: 99%

“…2) and then sum them all up. Figure 2 presents the weighted neutron yield (n/a) from each of the excited states of the 21 Ne-isotope considered. The total integrated values for each of these states are also shown in Fig.…”

Section: Total Neutron Yieldmentioning

confidence: 99%

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Neutron Radiation Characteristics of Plutonium Dioxide Fuel

Taherzadeh

Gingo

1972

Nuclear Technology

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Section: Total Neutron Yieldmentioning

confidence: 96%

Section: Total Neutron Yieldmentioning

confidence: 99%

“…It has been explained (Ref. 21) that these low-energy neutrons are due to the scattering and multiplication in the fuel itself.…”

Section: Total Neutron Yieldmentioning

confidence: 99%

Section: Total Neutron Yieldmentioning

confidence: 99%

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Neutron Radiation Characteristics of Plutonium Dioxide Fuel

Taherzadeh

Gingo

1972

Nuclear Technology

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“…The technical specifi ca tions and operating characteristics for the 'He and 'Li spectrometer were given in a previous report. 7 The charged particle pairs that are produced by neutrons incident on the sensitive material are detected simultaneously in the two detectors. The resulting pulses are amplified in two separate channels.…”

Section: Experimental Equipmentmentioning

confidence: 99%

Neutron spectra from californium-252 wire sources

Herold¹

1973

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Neutron spectra from four types of 2s2 Cf wire sources were measured with commercially available 3He and 6 Li "sandwich" spectrometers. The sources all emitted essentially pure fission neutron spectra. The presence of non-radioactive cationic impurities at concentrations up to the accepted limit of four times the californium content produced insignificant amounts of additional neutrons. Spectra from the four so~rce types were obtained between 0.5 and 4.7 MeV with the 3 He spectrometer and between 0.2 and 5.0 MeV with the 6 Li spectrometer with no detectable variation from the fission spectrum obtained from an electroplated source containing high-purity 2s2 Cf . The neutron spectrum from a wire source containing samarium and terbium did not differ significantly from the 2s2 Cf fission spectrum between 0.5 and 8.6 MeV as measured with the 3 He spectrometer.The instrumentation 'and techniques for fissile neutron detection and counting are described. Spectrometer response to neutrons of different energies was verified by resolving the energy groups from a plutonium-beryllium neutron source.

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