<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:mmultiscripts><mml:mi mathvariant="normal">Co</mml:mi><mml:mprescripts /><mml:none /><mml:mn>57</mml:mn></mml:mmultiscripts><mml:mrow><mml:mo>(</mml:mo><mml:mi>n</mml:mi><mml:mo>,</mml:mo><mml:mi>γ</mml:mi><mml:mo>)</mml:mo></mml:mrow><mml:mmultiscripts><mml:mi mathvariant="normal">Co</mml:mi><mml:mprescripts /><mml:none /><mml:mn>58</mml:mn></mml:mmultiscripts></mml:mrow></mml:math>reaction cross section: Thermal and

Maidana, Nora L.; Mesa, J.; Vanin, V. R.; Castro, R. M.; Dias, Mauro S.; Koskinas, Marina F.

doi:10.1103/physrevc.70.014602

Cited by 10 publications

(8 citation statements)

References 15 publications

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“…A current surge in research work for consistent capture cross section and resonance integral data has been clearly noted [7][8][9][10][11][12][13][14]. In this regard, the present author(s) have also studied the σ 0 and I 0 of 159 Tb [1], 57 Co [7], 74 Se, 75 As, etc. [15].…”

Section: Introductionmentioning

confidence: 95%

Measurement of thermal neutron cross section and resonance integral for the 165Ho(n, γ)166gHo reaction

Rajput¹,

Maidana²,

Vanin

et al. 2009

Radiochimica Acta

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Thermal neutron cross section / Resonance integral / 165 Ho (n, γ ) 166 Ho reaction / Reaction rate / Flux distribution/ Flux deviation parameter Summary. The ground state thermal neutron cross section and the resonance integral for the 165 Ho(n, γ ) 166 Ho reaction in thermal and 1/E regions, respectively, of a thermal reactor neutron spectrum have been measured experimentally by activation technique. The reaction product, 166 Ho in the ground state, is gaining considerable importance as a therapeutic radionuclide and precisely measured data of the reaction are of significance from the fundamental point of view as well as for application. In this work, the spectrographically pure holmium oxide (Ho 2 O 3 ) powder samples were irradiated with and without cadmium covers at the IEA-R1 reactor (IPEN, São Paulo), Brazil. The deviation of the neutron spectrum shape from 1/E law was measured by co-irradiating Co, Zn, Zr and Au activation detectors with thermal and epithermal neutrons followed by regression and iterative procedures. The magnitudes of the discrepancies that can occur in measurements made with the ideal 1/E law considerations in the epithermal range were studied.The measured thermal neutron cross section at the Maxwellian averaged thermal energy of 0.0253 eV is 59.0 ± 2.1 b and for the resonance integral 657 ± 36 b. The results are measured with good precision and indicated a consistency trend to resolve the discrepant status of the literature data. The results are compared with the values in main libraries such as ENDF/B-VII, JEF-2.2 and JENDL-3.2, and with other measurements in the literature.

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Section: Introductionmentioning

confidence: 95%

Measurement of thermal neutron cross section and resonance integral for the 165Ho(n, γ)166gHo reaction

Rajput¹,

Maidana²,

Vanin

et al. 2009

Radiochimica Acta

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“…1524.6(3) 18.08(9) 312.60 (25) 0.336(20) 899.7 (4) 0.052(3) 1920.8 (10) 0.041(4) 1021.2 (9) 0.0201 (14) 2424.3 (7) 0.020(3) 692.0 (8) 0.0033 (7) 1228.0 (15) 0.0024 (11) Although most of these transitions can be seen in the gamma-ray spectra, as will be discussed in Sect. 2.5, only the transition with energy 1524.6 keV was used to measure the 42 K residual activity.…”

Section: Decay Scheme and Observed Radiationsmentioning

confidence: 98%

“…The experimental procedure was similar to that used in 137 Cs and 57 Co neutron capture cross section measurements reported in [3] and [4]. The thermal and epithermal fluxes were calculated using the Westcott formalism [1], the cadmium ratio method [5] and the cadmium separation components methodology proposed by Axton [6].…”

Section: Introductionmentioning

confidence: 99%

⁴¹K(n,γ)⁴²K thermal and resonance integral cross section measurements

et al. 2012

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K, 42 K / Neutron activation / Thermal cross section / Resonance integral / Gamma ray spectrometrySummary. We measured the 41 K thermal neutron absorption and resonance integral cross sections after the irradiation of KNO 3 samples near the core of the IEA-R1 IPEN pooltype research reactor. Bare and cadmium-covered targets were irradiated in pairs with Au-Al alloy flux-monitors. The residual activities were measured by gamma-ray spectroscopy with a HPGe detector, with special care to avoid the 42 K decay β − emission effects on the spectra. The gamma-ray self-absorption was corrected with the help of MCNP simulations. We applied the Westcott formalism in the average neutron flux determination and calculated the depression coefficients for thermal and epithermal neutrons due to the sample thickness with analytical approximations. We obtained 1.57(4) and 1.02(4) b, for thermal and resonance integral cross sections, respectively, with correlation coefficient equal to 0.39.

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“…Systems and procedures used here were also applied to other radionuclide standardization works [4,5] and activation cross-section measurements [6].…”

Section: Introductionmentioning

confidence: 99%

Absolute measurement of sources activities in the cross-section determination—Improvement by simulation

Maidana¹,

Takeda²,

Dias³

et al. 2005

Nuclear Instruments and Methods in Physics Research Section A:

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Co57(n,γ)Co58reaction cross section: Thermal and

Cited by 10 publications

References 15 publications

Measurement of thermal neutron cross section and resonance integral for the 165Ho(n, γ)166gHo reaction

Measurement of thermal neutron cross section and resonance integral for the 165Ho(n, γ)166gHo reaction

⁴¹K(n,γ)⁴²K thermal and resonance integral cross section measurements

Absolute measurement of sources activities in the cross-section determination—Improvement by simulation

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Co57(n,γ)Co58reaction cross section: Thermal and

Cited by 10 publications

References 15 publications

Measurement of thermal neutron cross section and resonance integral for the 165Ho(n, γ)166gHo reaction

Measurement of thermal neutron cross section and resonance integral for the 165Ho(n, γ)166gHo reaction

41K(n,γ)42K thermal and resonance integral cross section measurements

Absolute measurement of sources activities in the cross-section determination—Improvement by simulation

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⁴¹K(n,γ)⁴²K thermal and resonance integral cross section measurements