NIPS–NORMA station—A combined facility for neutron-based nondestructive element analysis and imaging at the Budapest Neutron Centre

Kis, Zoltán; Szentmiklósi, László; Belgya, T.

doi:10.1016/j.nima.2015.01.047

Cited by 45 publications

(19 citation statements)

References 21 publications

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“…Ten 5–10 mm long sections were cut from each batch of samples. They were heat sealed in Teflon bags and loaded into one slot of the automatic sample changer at the NIPS-NORMA station [33,34]. The irradiation and the data collection were carried out using the Budapest NIPS Data Acquisition software.…”

Section: Methodsmentioning

confidence: 99%

Composition―Nanostructure Steered Performance Predictions in Steel Wires

et al. 2019

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Neutron scattering in combination with scanning electron and atomic force microscopy were employed to quantitatively resolve elemental composition, nano- through meso- to metallurgical structures and surface characteristics of two commercial stainless steel orthodontic archwires—G&H and Azdent. The obtained bulk composition confirmed that both samples are made of metastable austenitic stainless steel type AISI 304. The neutron technique’s higher detection sensitivity to alloying elements facilitated the quantitative determination of the composition factor (CF), and the pitting resistance equivalent number (PREN) for predicting austenite stability and pitting-corrosion resistance, respectively. Simultaneous neutron diffraction analyses revealed that both samples contained additional martensite phase due to strain-induced martensite transformation. The unexpectedly high martensite content (46.20 vol%) in G&H was caused by combination of lower austenite stability (CF = 17.37, p = .03), excessive cold working and inadequate thermal treatment during material processing. Together, those results assist in revealing alloying recipes and processing history, and relating these with corrosion resistance and mechanical properties. The present methodology has allowed access to unprecedented length-scale (μm to sub-nm) resolution, accessing nano- through meso-scopic properties. It is envisaged that such an approach can be extended to the study and design of other metallic (bio)materials used in medical sciences, dentistry and beyond.

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Section: Methodsmentioning

confidence: 99%

Composition―Nanostructure Steered Performance Predictions in Steel Wires

et al. 2019

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“…Prompt Gamma Activation Analysis has been performed at the PGAA and NIPS-NORMA facilities of the Budapest Neutron Centre. The Budapest PGAA and NIPS-NORMA facilities are described by Szentmiklósi and Kis [19,20]. The quantitative analysis with PGAA is based on the k 0 -method, described by Révay [21].…”

Section: Methodsmentioning

confidence: 99%

Characteristic Features of Lapis Lazuli from Different Provenances, Revised by µXRF, ESEM, PGAA and PIXE

Nöller¹,

Feldmann²,

Kasztovszky³

et al. 2019

JGRE

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The objective of this study is to find out, to what extent the geochemical characteristics of lapis lazuli can be utilized in respect to its provenance. A wide range of variables is taken into consideration depending on the quantity of samples analysed from a specific geological region and the methods applied. In order to provide evidence, a multi-technique analytical approach using µXRF, ESEM, PGAA and PIXE is applied to samples from the most famous deposits of lapis lazuli. Special elements determined as fingerprints are compared in relation to the forming conditions obvious in textural features. The results and statistical output allow a differentiation that enables an optimized local classification of the blue stone. An absolute requirement for all geo-tracing performed on blue colored cultural objects of unknown provenance is awareness of the limits of analysis. The possible sources of lapis lazuli are tested by analysing the blue pigment used as paint on murals and ink on manuscripts from the Silk Road.

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“…The nuclei then likely to reach a stable state by releasing the excess energy through isomeric transitions, β− decay, or β+ decay, and those are generally followed by γ-rays. The γ-rays correspond to specific radionuclides, and are used to identify an activation radionuclide [16,17]. Activated radionuclides will decay according to its characteristic decay scheme.…”

Section: Methodsmentioning

confidence: 99%

The Debris Particles Analysis of RSG Gas Coolant to Anticipate Sediment Induced Corrosion

Sriyono

Kusumastuti

Butarbutar

et al. 2016

Jurnal Pengembangan Energi Nuklir

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THE DEBRIS PARTICLES ANALYSIS OF RSG-GAS COOLANT TO ANTICIPATE SEDIMENT-INDUCED CORROSION. The reliability of the structures, systems and components (SSC) of the G.A. Siwabessy Multipurpose Research Reactor (RSG-GAS) should be maintained to keep the reactor operates safely. Chemical control and management of coolant is one factor which determines the SSC’s reliability. The debris sedimentation in the primary coolant system must be examined. Debris occurs in the reactor pool, originating from airborne dust from the engineering hall. Several elements contained by the sediment can induce corrosion. This research was conducted to identify the trace elements which were contained in the sediments and determine their concentrations. The objective was to anticipate the occurrence of galvanic and pitting corrosion due to the presence of elements which are more noble than aluminum. The measurement methodology is Neutron Activation Analysis (NAA). Two groups of samples were analyzed; the first group was sampled from the debris trapped in the mechanical filter after the resin column, or known as the resin trap, and second was sampled from the debris which adhered to the heat exchanger tube. The primary coolant debris analysis showed that the neutron-activated sediment contained Na-24, Na-25, Al-28, Mg-27, Cr-51, Mn-54, Mn-56, Co-58, Co-60, Ni-65, and Fe-59. The Mn, Cr, Co, Ni, and Fe are more noble than aluminum can induce galvanic corrosion while Na, Ba, Al, and Mg are not. The radionuclides contained by the result of neutron activation of sediment from the heat exchanger tube are Mn-56, Na-24, As-76, Br-82, Fe-59, Zn-65, Cr-51, La-140, and Sc-46 which are mostly carbon steel corrosion products. Those elements do not initiate galvanic corrosion. The prevention of galvanic corrosion can be done by periodic maintenance.Key Words : sediment, debris, corrosion, galvanic, pitting, RSG Gas

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NIPS–NORMA station—A combined facility for neutron-based nondestructive element analysis and imaging at the Budapest Neutron Centre

Cited by 45 publications

References 21 publications

Composition―Nanostructure Steered Performance Predictions in Steel Wires

Composition―Nanostructure Steered Performance Predictions in Steel Wires

Characteristic Features of Lapis Lazuli from Different Provenances, Revised by µXRF, ESEM, PGAA and PIXE

The Debris Particles Analysis of RSG Gas Coolant to Anticipate Sediment Induced Corrosion

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