IRMITS: A MATLAB program for analyzing isothermal remanent magnetization (IRM) data

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Several vital activities in East Java are supported by the Brantas River, ranging from irrigation, supply of water raw materials, to industry. Along with the growing population, has the potential to increase the pollution that occurs in the Brantas River. VSM data was taken from the measurement results in Brantas River sediments. The aim of this study is to analyze the VSM measurement data in the Brantas River using the HYSITS script. The analysis was carried out to determine the type of magnetic domain contained in the Brantas river sediment. HYSITS program is used to provides a deeper and better analysis and interpretation. The results show that HYSITS produces 2 curves besides hysteresis loop graphic, that is 1st derivative of ΔM curve and ΔM curve. From the Hysteresis curve of sample, it is known that the Saturation Magnetization (Ms ) value are 5.3262 - 5.998587 emu/g, the Saturation Remanent Magnetization (Mrs ) value are 1.1537 - 1.545586 emu/g, the Magnetic Coercivity (Bc ) value are 0.0188 - 0.020784 T, and Magnetic Remanent Coercivity (Bcr ) are 0.059891 - 0.0815. Result of the analysis indicates that the magnetic minerals in Brantas River are strongly suspected to represent ferrimagnetic minerals with Pseudo-Single Domain (PSD).

Section: Methodsmentioning

confidence: 99%

Analysis of Vibrating Sample Magnetometer (VSM) data of Brantas river sediments using HYSITS

Mariyanto

Ramadhan²,

Purba³

et al. 2022

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“…In this study, the software used is M. Excel and MATLAB. The IRMITS program [15] is used as the main processing tool in this study. There are some other magnetic software that can be used to proceed magnetic data [16][17][18][19].…”

Section: Methodsmentioning

confidence: 99%

“…IRMITS is used because it produces 3 curves, namely (a) Linear Acquisition Plot (LAP) curve (b) Gradient Acquisition Plot (GAP) curve; (c) Standardized Acquisition Plot (SAP) curve (can be seen at figures 3 and 4). The three curves produced by IRMITS [15] are new and provide a better analysis and interpretation, where in existing studies, only 1 IRM curve is displayed as a result of the comparison between the IRM value and the magnetic field. The process of running the program can be seen in Figure 2.…”

Section: Methodsmentioning

confidence: 99%

Analysis of Isothermal Remanent Magnetization (IRM) data of Brantas river sediments using IRMITS program

Ramadhan

Purba²,

Nabilah³

et al. 2022

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Pollution is one of the big problems of continuous pollution in the Brantas River. The type of pollution that occurs in the sediment of a river is associated with the characteristics of its magnetic mineral. This study aims to determine the types of magnetic minerals in the Brantas River sediments. IRM data was taken from the measurement results in the Brantas River sediments. In this study, the IRMITS program is used to provides a deeper and better analysis and interpretation. From the processing results, IRMITS produces 3 graphs, namely the Linear Acquisition Plot (LAP) curve (b) the Gradient Acquisition Plot (GAP) curve; (c) Standardized Acquisition Plot (SAP) curve. From this study that has been done, it shows that magnetic minerals in the Brantas River are saturated in magnetic fields above 800mT with permanent coercivity occurring in the range 12-13 x 10−3 and z value 0 before saturation occurs. This indicates that most of the Brantas River sediments is dominated by magnetite minerals (Fe3O4).

“…With the technology growth, several programs for the purpose of rock magnetics analysis have been developed in the recent times, i.e. THERMITS [13], IRMITS [14], and PyTherNal [16]. HYSITS, a MATLAB-based program, is an example of the recent findings specifically for visualizing VSM data [15].…”

Section: Introductionmentioning

confidence: 99%

HYSGUITS: A MATLAB Graphical User Interface (GUI) for hysteresis loop simulation in Vibrating-Sample Magnetometer (VSM) data

Antareza

Salim

Mariyanto

et al. 2022

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In rock magnetism, Vibrating-Sample Magnetometer (VSM) data displays magnetic moment in specific magnetic field applied in descending and ascending magnitude, which results in a pattern called hysteresis loop. This loop characterizes different magnetic materials depending on its shape. In recent years, the usage of computer software to analyze hysteresis loop has become necessary due to its precision. Easily executable, intuitive, and user-friendly open-source programs for analyzing VSM data are still not widely available despite their necessary utilization. HYSGUITS was designed with this issue in mind to further improve the development of tools in this field. HYSGUITS is a Graphic User Interface (GUI) to analyze the hysteresis loop of VSM data. MATLAB is a suitable base for producing this GUI compared to other programming language due to its sophisticated features and clean data visualization. This software is able to visualize hysteresis loop in different ways, mainly through the difference of ascending with descending magnetization value and its 1st derivative. The GUI displays the graph as an interactive plot window which provides detailed observation on each data points, supported by features such as interpolation and smoothing. This article introduces of the functionalities of HYSGUITS and demonstrates its utilization with example use case.