Gamma ray production cross-sections of deuteron induced nuclear reactions for light element analysis

Szíki, Gusztáv Áron; Simón, A.; Szikszai, Zita; Kertész, Zs.; Dobos, Erik

doi:10.1016/j.nimb.2006.07.008

Cited by 23 publications

(9 citation statements)

References 25 publications

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“…The results will be uploaded to IAEA IBANDL (Ion Beam Analysis Nuclear Data Library, www-nds.iaea.org/ibandl/) to make them freely available for nitrogen and silicon determination by d-PIGE. This work is also a continuation of our earlier efforts to determine light element gamma-ray production cross sections for d-PIGE [13].…”

Section: Introductionmentioning

confidence: 76%

“…This set-up was intended to detect the backscattered particles from the target. The novelty of this experimental arrangement compared to our previous one [13] is the simultaneous measuring of gamma-rays and particles from the reactions investigated, which gives the possibility of continuous target thickness determination when the elastic backscattering cross section is considered as Rutherford, and which contributes to the reliable determination of the excitation functions, in this case belonging to the 14 N(d,p 4,5,6,7 ) 15 N reactions. The schematic drawing of the chamber and the experimental set-up is shown in Fig.…”

Section: Methodsmentioning

confidence: 99%

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Measurement of gamma-ray production cross sections for nuclear reactions 14N(d,pγ)15N and 28Si(d,pγ)29Si

Csedreki

Uzonyi

Szikszai

et al. 2014

Nuclear Instruments and Methods in Physics Research Section B:

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In this work the differential cross sections for gamma-ray emission from the 14 implanted Si detector at 135 0 with respect to the beam direction in the deuteron energy range 0.65 -2.0 MeV. The target was a thin silicon-nitride film. Gamma-ray angular distribution measurements were performed to determine the possible anisotropy of the gamma-ray emission, and the measured cross section values were converted into total gamma-ray producing cross sections for most of the gamma-ray emissions. The average uncertainties of nitrogen and silicon gamma-ray production cross sections are 5% and 12%, respectively and 8% concerning the particle production cross section of nat N(d,d 0

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Section: Introductionmentioning

confidence: 76%

Section: Methodsmentioning

confidence: 99%

Measurement of gamma-ray production cross sections for nuclear reactions 14N(d,pγ)15N and 28Si(d,pγ)29Si

Csedreki

Uzonyi

Szikszai

et al. 2014

Nuclear Instruments and Methods in Physics Research Section B:

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“…In general, the emitted distributions in angle are described 4 He reaction is particularly favorable for tritium retention diagnosis with the AIMS technique. The gamma production cross sections are from [47]; the neutron production cross sections are from [48,49,50] in nuclear theory by an expansion of Legendre polynomials, where the polynomial coefficients are a function of energy and angular momentum of the particles and nuclear level states involved in the reaction [45].…”

Section: Gamma Production Reactionsmentioning

confidence: 99%

“…Unfortunately, the gamma production cross section databases are relatively incomplete. While deuteron-induced absolute thick-target gamma yields for many materials have been compiled [41,46], angular differential cross section data for incident deuterons below the ~2 MeV used in IBA have only been measured on some of the isotopes of interest and only at a single angle [47]; that data is shown in Figure 3-2a. Fortunately, a renewed interest in standard IBA with deuterons has led to a recent International Atomic Energy Agency (IAEA) initiative to experimentally measure and compile angular differential gamma production cross sections for most of the isotopes below calcium [42].…”

Section: Gamma Production Reactionsmentioning

confidence: 99%

An in situ accelerator-based diagnostic for plasma-material interactions science on magnetic fusion devices

Hartwig

Barnard

Lanza

et al. 2013

Review of Scientific Instruments

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Plasma-material interactions (PMI) in magnetic fusion devices such as fuel retention, material erosion and redeposition, and material mixing present significant scientific and engineering challenges, particularly for the next generation of devices that will move towards reactor-relevant conditions. Achieving an integrated understanding of PMI, however, is severely hindered by a dearth of in-situ diagnosis of the plasma-facing component (PFC) surfaces. To address this critical need, this thesis presents an accelerator-based diagnostic that nondestructively measures the evolution of PFC surfaces in-situ. The diagnostic aims to remotely generate isotopic concentration maps that cover a large fraction of the PFC surfaces on a plasma shot-to-shot timescale.The diagnostic uses a compact, high-current radio-frequency quadrupole accelerator to inject 0.9 MeV deuterons into the Alcator C-Mod tokamak. The tokamak magnetic fields in between plasma shots are used to steer the deuterons to PFCs where the deuterons cause high-Q nuclear reactions with low-Z isotopes ~5 pim into the material. Scintillation detectors measure the induced neutrons and gammas; energy spectra analysis provides quantitative reconstruction of surface concentrations. An overview of the diagnostic technique, known as accelerator-based in-situ materials surveillance (AIMS), and the first AIMS diagnostic on the Alcator C-Mod is given; a description of the complementary simulation tools is also provided. Experimental validation is shown to demonstrate the optimized beam injection into the tokamak, the quantification of PFC surfaces isotopes, and the measurement localization provided by magnetic beam steering. Finally, the first AIMS measurements of fusion fuel retention are presented, demonstrating the local erosion and codeposition of deuterium-saturated boron surface filns. The finding confirms that deuterium codeposition with boron is insufficient to account for the net fuel retention in Alcator C-Mod.

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“…In our laboratory, we are continuously working on the precise determination of thick target gamma ray yields and excitation functions of several nuclear reactions for analytical purposes [7][8][9][10][11][12].…”

Section: Introductionmentioning

confidence: 99%

Resonance parameters of the reaction 12C(d,pγ)13C in the vicinity of 1450keV for accelerator energy calibration

Csedreki

Szíki

Szikszai

et al. 2015

Nuclear Instruments and Methods in Physics Research Section B:

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Gamma ray production cross-sections of deuteron induced nuclear reactions for light element analysis

Cited by 23 publications

References 25 publications

Measurement of gamma-ray production cross sections for nuclear reactions 14N(d,pγ)15N and 28Si(d,pγ)29Si

Measurement of gamma-ray production cross sections for nuclear reactions 14N(d,pγ)15N and 28Si(d,pγ)29Si

An in situ accelerator-based diagnostic for plasma-material interactions science on magnetic fusion devices

Resonance parameters of the reaction 12C(d,pγ)13C in the vicinity of 1450keV for accelerator energy calibration

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