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| Home > Publications database > 3 MeV Proton Ion beam analysis of NCA/Si anode-cathode mapping |
| Dataset | FZJ-2024-06242 |
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2024
Zenodo
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Please use a persistent id in citations: doi:10.5281/ZENODO.14096283
Abstract: The dataset presents 2140 ion-beam-analysis (IBA) measurements of a NCA cathode and a Si/G anode using 2970+-20 keV protons. Figure 1 shows an example of the result. The anode and cathode foils were cycled in a full liquid electrolyte cell for 340 cycles and analysed in the state-of-charge =0. The cell consisted of 20 cathode and 20 anode layer from which 2 cathode and 2 anode layers from the top (KT, AT) and middle (AM, KM) were extracted for IBA. For practical reasons each of the 110x80 mm² foils was cut into 9 equal parts. Four detectors acquire the data simultaneously for RBS, NRA, PIGE, and PIXE. The description of the end-station and detectors can be found here: https://doi.org/10.3390/instruments5010010. Each point on the sample consists of 4 files, four detector spectra. The filename consists of the sample name, three positions in units of nm (X, Y, Z), a rotation in units of µ° followed by an underscore ( _ ) and the type of data contained in the file (RBS, NRA, PIXE, PIGE, or Meta). Only X and Z positions are relevant in this case as indicated in the attached figure. The RBS, NRA, and PIGE detector files contain a header specifying the dead- and live-time followed by two columns. The first column represents the digital channel of the detector. The second column represents the counts acquired in this channel. This format is readable as ASCI by SimNRA7. SimNRA 7 reference evaluations are included in the dataset. The PIXE file contains the number of channels in the first row/header and only the counts in the subsequent rows. The channel is given by the row number. This format is readable by GUPIXWIN3. Example GUPIXWIN files are included The channels of the detector files can be re-calculated using a calibration shown in the following table 1. Certain drifts in the calibrations are possible, but should be limited to below 2% of the given value. All points are integrated to the same ion dose of 2 µC. This corresponds to a Particle*Sr of about 5.0E+10 (RBS detector), 5.4E+11 (NRA). Table 1: Detector calbration enabling a recalculation of channels to energy. Units are in keV Detector Linear (multiply with channel) Offset (add to first result) RBS 2.8 10 NRA 5.5 10 PIXE 0.184 1.5 PIGE 0.85 0
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