<i>Neutron Physics</i>

Beckurts, K. H.; Wirtz, K.; Barschall, H. H.

doi:10.1063/1.3047290

Cited by 20 publications

(29 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…(A15) depends on the value of µ, the dependence ofσ m , σ 0 and s 0 on µ were investigated. The experimental value of µ for water was about 5 20) and a lower value of µ than 5 is preferred for graphite reactors, 17) and, therefore, the values ofσ m , σ 0 , and s 0 were estimated for a µ around 5. The results of the estimation are shown in Table 11.…”

Section: Discussionmentioning

confidence: 99%

“…Poole, 18) and Burkart et al 19) tried to resolve the neutron spectra measured in solution into a Maxwell distribution and a 1/E part. 20) Poole deduced the cut-off function (see the Appendix) for pure water, 18,20) and the value of µ was about 5. 20) The value of µ for D 2 O moderator is also 5.…”

Section: Deduction Of σ 0 and I 0 For 166m Homentioning

confidence: 99%

“…20) Poole deduced the cut-off function (see the Appendix) for pure water, 18,20) and the value of µ was about 5. 20) The value of µ for D 2 O moderator is also 5. 17) Therefore, we use 5 for the value of µ.…”

Section: Deduction Of σ 0 and I 0 For 166m Homentioning

confidence: 99%

“…17) Therefore, we use 5 for the value of µ. The Cd cut-off energies, E Cd , have been reported 17,20) for isotropic and normal (vertical) incidences of neutrons on a Cd sheet, and the E Cd reported was 0.55 eV for the isotropic incidence on a 0.5 mm-thick Cd sheet. The value of r (=r(T /T 0 ) 1/2 ) was obtained from the ratio of the measured neutron fluxes φ 2 and φ 1 and was 0.0366±0.0023.…”

Section: Deduction Of σ 0 and I 0 For 166m Homentioning

confidence: 99%

See 3 more Smart Citations

Measurement of Thermal Neutron Capture Cross Section and Resonance Integral of the 166mHo(n, .GAMMA.)167Ho Reaction using a Two-Step Irradiation Technique.

Katoh

Nakamura²,

Furutaka³

et al. 2002

J. Nucl. Sci. Technol.

View full text Add to dashboard Cite

The thermal neutron capture cross section (σ 0) and the resonance integral (I 0) of 166m Ho have been measured as data for the transmutation of nuclear waste. Samples of 166m Ho were made by the neutron irradiation of 165 Ho. Two metallic foils of 165 Ho were irradiated for 2 weeks and two others for 3 weeks at the Kyoto University Reactor. A high purity Ge detector was employed for activity measurement. The samples irradiated were cooled for 3 months to reduce the activity of 166g Ho. One of the samples irradiated for 2 weeks was irradiated again with Cd cover sheets and the other one without a Cd cover sheet. For the samples irradiated for 3 weeks, the same irradiation was performed. The 167 Ho nuclei were produced at the second irradiation via the neutron capture of 166m Ho and the double neutron capture of 165 Ho. The amount of 167 Ho via the double capture was estimated from the difference between the data of 2 week irradiation and 3 week irradiation, and corrected. The reaction rate to produce 167 Ho from 166m Ho was analyzed by Westcott's convention. A resonance at 0.274 eV was considered in the analysis. The results obtained were 3.11±0.82 kb for the σ 0 and 10.0±2.7 kb for the I 0 of 166m Ho.

show abstract

Section: Discussionmentioning

confidence: 99%

Section: Deduction Of σ 0 and I 0 For 166m Homentioning

confidence: 99%

Section: Deduction Of σ 0 and I 0 For 166m Homentioning

confidence: 99%

Section: Deduction Of σ 0 and I 0 For 166m Homentioning

confidence: 99%

See 2 more Smart Citations

Measurement of Thermal Neutron Capture Cross Section and Resonance Integral of the 166mHo(n, .GAMMA.)167Ho Reaction using a Two-Step Irradiation Technique.

Katoh

Nakamura²,

Furutaka³

et al. 2002

J. Nucl. Sci. Technol.

View full text Add to dashboard Cite

show abstract

“…It cannot be assumed that the primary reactions such as 2 H(d,n) 3 He, 7 Li(p,n) 7 Be, etc., are the only ones involved in the experiment. In fact, neutrons are also produced vie competing reactions such as 2 H(d,np) 2 H, 7 Li(p,n) 7 Be , Li(p,n 'He^He, etc., when the bombarding energy is sufficiently high. The energies of these secondary neutrons are noticeably reduced relative to the primary neutrons.…”

Section: Definition Ok Terms and Discussion Of Conceptsmentioning

confidence: 99%

Some comments on resolution and the analysis and interpretation of experimental results from differential neutron measurements

Smith¹

1979

View full text Add to dashboard Cite

Effects of finite resolution in differential neutron measurements are examined. General procedures for deriving the experimental resolution functions from a knowledge of the experimental parameters are presented. Problems encountered in the comparison of different data sets, when the measured cross section is known to fluctuate with energy, are discussed. This report has been prepared with the objective of encouraging closer attention to the matter of resolution by experimenters, evaluators and users of neutron nuclear data.

show abstract

A Gadolinium Metal‐Organic Framework Film as a Converter Layer for Neutron Detection

et al. 2020

View full text Add to dashboard Cite

Metal‐organic frameworks (MOFs) are known for their versatility in terms of their crystalline structure, porosity, resistance to temperature, radiation damage, and luminescence among others. Gadolinium (Gd) is one of the elements with the highest reported cross‐section for low energy neutron capture, producing internal conversion electrons and γ rays as a result of the neutron absorption. The development of Gd‐BTC films (BTC=1,3,5‐benzenetricarboxylate) is shown that were deposited on Si and Al substrates by airbrushing, and characterized by profilometry, Raman, EDX and X‐ray diffraction. Radiation damage, thermal decomposition and neutron absorption of these films were studied as well. Gd‐BTC films were attached to CMOS devices (Complementary Metal‐Oxide‐Semiconductor), which are sensible to the internal conversion electrons, in order to build a neutron detector. The devices Gd‐BTC/CMOS could selectively detect neutrons in the presence of γ rays with a thermal neutron detection efficiency of 3.3±0.1 %, a signal to noise ratio of 6 : 1, and were suitable to obtain images.

show abstract

Neutron Physics

Cited by 20 publications

References 0 publications

Measurement of Thermal Neutron Capture Cross Section and Resonance Integral of the 166mHo(n, .GAMMA.)167Ho Reaction using a Two-Step Irradiation Technique.

Measurement of Thermal Neutron Capture Cross Section and Resonance Integral of the 166mHo(n, .GAMMA.)167Ho Reaction using a Two-Step Irradiation Technique.

Some comments on resolution and the analysis and interpretation of experimental results from differential neutron measurements

A Gadolinium Metal‐Organic Framework Film as a Converter Layer for Neutron Detection

Contact Info

Product

Resources

About