Measurement of 14 MeV neutron flux from D-T neutron generator using activation analysis

Jakhar, S.; Rao, C. V. S.; Shyam, A.; Das, Basanta Kumar

doi:10.1109/nssmic.2008.4774825

Cited by 9 publications

(10 citation statements)

References 5 publications

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“…The statistical uncertainty in the reaction cross sections values (one standard deviation) was calculated as the quadrature sum of the peak analyses uncertainties and the fluence uncertainties. A maximum systematic uncertainty of ±5% can be attributed to the determination of 12 C number of atoms. Half of this contribution has been added in quadrature sum to compute the total uncertainty.…”

Section: Resultsmentioning

confidence: 99%

“…The methodology used is well described in Ref. [12]. The uncertainty estimate for the fluence measurements was ± 2.5% at one standard deviation.…”

Section: Experimental Set-upmentioning

confidence: 99%

“…A paper was already published where the cross sections of n+ 12 C reaction leading to both ground and excited levels of the reaction products were measured using a diamond detector [7].…”

Section: Introductionmentioning

confidence: 99%

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High-resolution measurements of the exited states (n,p_n), (n,d_n) C-12 cross sections

et al. 2017

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Abstract. Measurements of C12 cross sections for the excited states (n,p 0 ) up to (n,p 4 ) and (n,d 0 ), (n,d 1 ) have been carried out. The Van de Graaff neutron generator of the EC-JRC-IRMM laboratory has been used for these measurements. A very thin tritiated target (263 µg/cm 2 ) was employed with deuteron beams energies impinging on the target in the range 2.5-4.0 MeV. Neutrons in the range 18.9-20.7 MeV were produced with an intrinsic energy spread of 0.2-0.25% FWHM. With such narrow neutron energy spread, using a high energy resolution device such as a single crystal diamond detector, several peaks from the outgoing charged particles produced by the (n,p n ), (n,d n ) and also (n,α 0 ) reactions appear in the pulse height spectrum. The peaks can be identified using the reaction Q-values. The diamond detector used for these measurements has shown an intrinsic energy resolution lower than 0.9% FWHM. The analysis of the peaks has permitted to derive the partial carbon reaction cross sections for several excited states. The results are presented in this paper with the associated uncertainties and they are compared with different versions of TENDL compilation when these data are available (e.g. versions

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Section: Resultsmentioning

confidence: 99%

“…The methodology used is well described in Ref. [12]. The uncertainty estimate for the fluence measurements was ± 2.5% at one standard deviation.…”

Section: Experimental Set-upmentioning

confidence: 99%

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High-resolution measurements of the exited states (n,p_n), (n,d_n) C-12 cross sections

et al. 2017

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“…The neutron emission rate Y n is expressed by the Eq. (3): (3) where: d -the distance of the sample from the detector [cm], (E n ) -the value of the cross section for 14.14 MeV neutrons [cm 2 ].…”

Section: Calculation Of the Reaction Rate And Y Nmentioning

confidence: 99%

“…It could be determined in different ways but the activation technique still is very popular [1,2]. The activation method does not affect any of the crucial parameters of plasma generation.…”

Section: Introductionmentioning

confidence: 99%

Determination of the emission rate for the 14 MeV neutron generator with the use of radio-yttrium

et al. 2015

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Abstract. The neutron emission rate is a crucial parameter for most of the radiation sources that emit neutrons. In the case of large fusion devices the determination of this parameter is necessary for a proper assessment of the power release and the prediction for the neutron budget. The 14 MeV neutron generator will be used for calibration of neutron diagnostics at JET and ITER facilities. The stability of the neutron generator working parameters like emission and angular homogeneity affects the accuracy of calibration other neutron diagnostics. The aim of our experiment was to confi rm the usefulness of yttrium activation method for monitoring of the neutron generator SODERN Model: GENIE 16. The reaction rate induced by neutrons inside the yttrium sample was indirectly measured by activation of the yttrium sample, and then by means of the -spectrometry method. The pre-calibrated HPGe detector was used to determine the yttrium radioactivity. The emissivity of neutron generator calculated on the basis of the measured radioactivity was compared with the value resulting from its electrical settings, and both of these values were found to be consistent. This allowed for a positive verifi cation of the reaction cross section that was used to determine the reaction rate (6.45 × 10 -21 reactions per second) and the neutron emission rate (1.04 × 10 8 n·s -1 ). Our study confi rms usefulness of the yttrium activation method for monitoring of the neutron generator.

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Statistical analysis for discrimination of prompt gamma ray peak induced by high energy neutron: Monte Carlo simulation study

Yoon

Jung

Han

et al. 2014

J Radioanal Nucl Chem

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The purpose of this research is a statistical analysis for discrimination of prompt gamma ray peak induced by the 14.1 MeV neutron particles from spectra using Monte Carlo simulation. For the simulation, the information of 18 detector materials was used to simulate spectra by the neutron capture reaction. The discrimination of nine prompt gamma ray peaks from the simulation of each detector material was performed. We presented the several comparison indexes of energy resolution performance depending on the detector material using the simulation and statistics for the prompt gamma activation analysis.

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Measurement of 14 MeV neutron flux from D-T neutron generator using activation analysis

Cited by 9 publications

References 5 publications

High-resolution measurements of the exited states (n,p_n), (n,d_n) C-12 cross sections

High-resolution measurements of the exited states (n,p_n), (n,d_n) C-12 cross sections

Determination of the emission rate for the 14 MeV neutron generator with the use of radio-yttrium

Statistical analysis for discrimination of prompt gamma ray peak induced by high energy neutron: Monte Carlo simulation study

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Measurement of 14 MeV neutron flux from D-T neutron generator using activation analysis

Cited by 9 publications

References 5 publications

High-resolution measurements of the exited states (n,pn), (n,dn) C-12 cross sections

High-resolution measurements of the exited states (n,pn), (n,dn) C-12 cross sections

Determination of the emission rate for the 14 MeV neutron generator with the use of radio-yttrium

Statistical analysis for discrimination of prompt gamma ray peak induced by high energy neutron: Monte Carlo simulation study

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High-resolution measurements of the exited states (n,p_n), (n,d_n) C-12 cross sections

High-resolution measurements of the exited states (n,p_n), (n,d_n) C-12 cross sections