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Jurnal Fisika FLUX
Published by Universitas Lambung Mangkurat
ISSN : 1829796X     EISSN : 25411713     DOI : -
Core Subject : Science, Education,
Earth & Planetary Sciences Education Materials Science & Nanotechnology Physics
Jurnal Fisika FLUX is a peer-reviewed, open access journal that publishes original research articles, review articles, as well as short communication in all areas of physics including applied physics, which includes: physics instrumentation and computation, biophysics, geophysics, physics materials, theoretical physics, and physics education. Journal use single peer reviewed to publish. This journal is published by Universitas Lambung Mangkurat Press. ISSN 1829-796X (print) and ISSN 2541-1713 (online) Jurnal Fisika FLUX is published twice a year. Articles will be peer reviewed first. Once ready to be published immediately on the current edition.
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Search results for , issue "Vol 21, No 3 (2024): Jurnal Fisika Flux: Jurnal Ilmiah Fisika FMIPA Universitas Lambung Mangkurat" : 10 Documents clear
Penyelesaian Persamaan Schrodinger Tidak Bergantung Waktu Dengan Metode Finite Difference Widagda, I Gusti Agung; Artawan, I Nengah; Suharta, Wayan Gede; Antha Kasmawan, I Gde
Jurnal Fisika Flux: Jurnal Ilmiah Fisika FMIPA Universitas Lambung Mangkurat Vol 21, No 3 (2024): Jurnal Fisika Flux: Jurnal Ilmiah Fisika FMIPA Universitas Lambung Mangkurat
Publisher : Lambung Mangkurat University Press

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20527/flux.v21i3.19289

Abstract

The solution of time-independent Schrodinger equation (TISE) has been studied by several researchers. In this research, a TISE solution is found by using the finite difference method which is implemented in computer program code by using the Python language. TISE in the form of a second order differential equation is solved by using the finite difference method. In order to normalize the resulting wave function it is necessary to divide it by square root of the integral of the squared wave function. The integral method used is the Riemann method. In order to prove quantitatively that the TISE solution of the finite difference method is the same as or close to that of the analytical method, it is carried out by using linear regression and the z test. The research results show that the linear regression results from the two methods are nearly close. This is able to be seen from the values of  gradient (m), intercept (c) and coefficient of determination (R2) which are close to ideal values, namely, 1, 0 and 1, respectively. In addition, from the z test it is concluded that the null hypothesis H0 is accepted, which means the solution of finite difference method is equal to analytical solution by a confidence level of 95 percent.
Morphological Study of Surface Magnetic Minerals, Case Study of North Banjarmasin Settlement Areas Sudarningsih, Sudarningsih; Fahruddin, Fahruddin; Manik, Tetti Novalina; Dzikri, Dzikri
Jurnal Fisika Flux: Jurnal Ilmiah Fisika FMIPA Universitas Lambung Mangkurat Vol 21, No 3 (2024): Jurnal Fisika Flux: Jurnal Ilmiah Fisika FMIPA Universitas Lambung Mangkurat
Publisher : Lambung Mangkurat University Press

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20527/flux.v21i3.20532

Abstract

We have conducted research to identify the morphology of magnetic minerals from the land in the Banjarmasin regional settlement area. We used scanning electron microscopy and energy dispersive X-ray spectroscopy (SEM EDS) on the soil sample to look at the shape of its magnetic minerals. In nature, magnetic minerals can indicate the presence of heavy metals. The shape of a magnetic mineral can reveal its origin in either the litogenic or anthropogenic processes. There were mostly pseudo-single domain grains (3.29–10 m) and multidomain grains (> 10–134.69 m) in the study area. The multidomain grains came in the shapes of sperules, irregulars, angles, and prisms. These results indicate that in the residential land location there are magnetic mineral grains originating from litogenic and anthropogenic processes.
Spatiotemporal Analysis of B-Value at Mount Slamet (2014–2023) Maulita, Ika; Sugito, Sugito; Boli, Lusia Silfia Pulo
Jurnal Fisika Flux: Jurnal Ilmiah Fisika FMIPA Universitas Lambung Mangkurat Vol 21, No 3 (2024): Jurnal Fisika Flux: Jurnal Ilmiah Fisika FMIPA Universitas Lambung Mangkurat
Publisher : Lambung Mangkurat University Press

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20527/flux.v21i3.20718

Abstract

This study investigates the spatial and temporal distribution of b-values at Mount Slamet, one of Indonesia’s most active volcanoes, during its eruption activities from 2014 to 2023. The primary objective is to explore how variations in b-values correlate with stress conditions and volcanic activity, providing insights into eruption forecasting. Seismic data were sourced from USGS, BMKG, and local networks and analyzed using ZMAP and MATLAB to calculate b-values, assess magnitude completeness, and perform spatial and temporal analyses. Results reveal notable spatial variability: higher b-values in the northern and northeastern regions indicate lower stress levels, while lower b-values in the southwestern region suggest elevated stress concentrations. These spatial patterns align with geological features, highlighting zones of intense tectonic and magmatic interactions. Temporally, b-values consistently declined before major eruptions in 2017 and 2020, reflecting increased stress and larger seismic events. Post-eruption, b-values rose, indicating stress reduction and stabilization of the volcanic system. These findings underscore the value of b-value monitoring as an effective tool for eruption forecasting. The observed spatial and temporal trends offer critical insights into Mount Slamet’s evolving stress conditions, aiding disaster preparedness and risk mitigation strategies for local communities. The study highlights the importance of continuous seismic monitoring combined with advanced analytical techniques to enhance the predictive capabilities of volcanic hazard assessments. Future research should integrate additional geophysical parameters, refine predictive models, and extend analyses to similar volcanic settings to improve global understanding of volcanic processes and enhance early warning systems.
Analysis of Hypocenter Position of Bengkulu Earthquake on April 15, 2023 Using 2D and 3D Grid Search Method Based on USGS Data Sidik, Firdos Bahar; Khumairo, Savira Zahrul; Pangestu, Farizki Budi; Sakinah, Triya Illmi; Febrian, Muhamad Raihan Putra; Laksono, Risaldi Fauzan; Nasution, Jihan Syafina
Jurnal Fisika Flux: Jurnal Ilmiah Fisika FMIPA Universitas Lambung Mangkurat Vol 21, No 3 (2024): Jurnal Fisika Flux: Jurnal Ilmiah Fisika FMIPA Universitas Lambung Mangkurat
Publisher : Lambung Mangkurat University Press

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20527/flux.v21i3.21112

Abstract

Earthquakes are natural events that can have serious impacts on human life and the environment. This study aims to improve the accuracy of earthquake hypocenter determination by applying the 2D dan 3D Grid Search method to seismic data recorded by three stations in the Bengkulu area, Indonesia. The analysis process begins with P and S wave phase picking using seismograv software, followed by origin time determination using the Wadati diagram method. The 2D dan 3D Grid Search method was used to calculate the position of the earthquake hypocenter by dividing the search area into grids and searching for the smallest RMS value. The results of the relocation calculation obtained the hypocenter point of the earthquake at latitude 4.50°N, longitude 76.0340°W with a depth of 60 km. Although there are differences with USGS data, the level of agreement of the calculation results is relatively high. This research contributes to further understanding of earthquakes in the study area and can be the basis for improving disaster mitigation.
Studi Penumbuhan Grafena pada Temperatur Rendah Menggunakan Metode Hotwire-Plasma Enhanced Chemical Vapor Deposition Jasruddin, Jasruddin; Yusuf, Andi Momang; Sulistiawaty, Sulistiawaty
Jurnal Fisika Flux: Jurnal Ilmiah Fisika FMIPA Universitas Lambung Mangkurat Vol 21, No 3 (2024): Jurnal Fisika Flux: Jurnal Ilmiah Fisika FMIPA Universitas Lambung Mangkurat
Publisher : Lambung Mangkurat University Press

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20527/flux.v21i3.19279

Abstract

Dalam penelitian ini, telah dilakukan penumbuhan grafena dengan menggunakan metode Hotwire-Plasma Enhanced Chemical Vapor Deposition (HW-PECVD). Metode ini merupakan metode kombinasi antara metode PECVD konvensional dan metode CVD termal dengan menambahkan elemen hot-wire. Plasma dibangkitkan dengan menggunakan frekuensi radio pada spektrum Very High Frequency (VHF) sebesar 70 MHz. Sampel grafena ditumbuhkan di atas substrat kaca SiO2 yang telah dilapisi lapisan katalis nikel dengan temperatur penumbuhan 300°C. Grafena yang dihasilkan dianalisis dengan menggunakan spektroskopi Raman. Spektrum Raman sampel menunjukkan bahwa sampel yang dihasilkan telah mengandung struktur grafitik yang ditunjukkan oleh keberadaan pita G yang tajam, disertai dengan pita D yang menunjukkan bahwa sampel tersebut juga mengandung sejumlah cacat pada struktur grafitiknya. Sementara itu, pita 2D yang tampak dalam spektra Raman masih relatif lemah yang memberi indikasi kualitas sampel yang buruk, mengandung banyak cacat, dan berukuran nanokristalin. Walaupun demikian, hasil ini menunjukkan adanya potensi besar untuk dapat menumbuhkan grafena pada temperatur rendah melalui metode HW-PECVD yang digunakan melalui optimasi parameter-parameter penumbuhan lebih lanjut seperti tekanan penumbuhan dan laju alir gas sumber termasuk mengoptimasi ketebalan lapisan katalis nikelnya.
Investigasi Akuifer Air Tanah Menggunakan Metode Geolistrik Vertical Electrical Sounding (VES) Konfigurasi Schlumberger di Kelurahan Randuacir, Kecamatan Argomulyo, Kota Salatiga, Jawa Tengah, Indonesia Sidik, Firdos Bahar; Ghoni, Alfito Abdhul; Ulhaq, Latief Dhiyya; Danuputra, Dzaki Aziz; Aprillarosanti, Perla Hanun; Sakinah, Triya Illmi; Pangestu, Farizki Budi
Jurnal Fisika Flux: Jurnal Ilmiah Fisika FMIPA Universitas Lambung Mangkurat Vol 21, No 3 (2024): Jurnal Fisika Flux: Jurnal Ilmiah Fisika FMIPA Universitas Lambung Mangkurat
Publisher : Lambung Mangkurat University Press

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20527/flux.v21i3.21156

Abstract

Penelitian ini bertujuan untuk mengidentifikasi akuifer air tanah di Desa Randuacir, Kecamatan Argomulyo, Kota Salatiga, Jawa Tengah, menggunakan metode geolistrik Vertical Electrical Sounding (VES) dengan konfigurasi Schlumberger. Pengukuran dilakukan di tujuh titik dengan bentangan kabel 600 m dan interpretasi kedalaman hingga 200 m. Hasil interpretasi menunjukkan adanya akuifer dangkal pada kedalaman 6–38 m, dengan ketebalan lapisan berkisar antara 9 hingga 32 m di lima titik (GL-1, GL-2, GL-4, GL-6, dan GL-7). ). Akuifer dalam teridentifikasi pada kedalaman lebih dari 100 m, khususnya pada GL-1 (>140 m), GL-2 (>151 m), GL-4 dan GL-6 (>116 m), dan GL-7 (> 101 m). Litologi dominan terdiri dari breksi laharik, pasir, dan lempung berpasir, dengan lapisan breksi tebal yang berperan sebagai akuitar. Temuan ini memberikan wawasan berharga untuk mendukung perencanaan pembangunan perumahan nasional melalui identifikasi lokasi pengeboran air tanah yang optimal
Pembuatan Media Simulasi Litologi Bawah Permukaan untuk Praktikum Geofisika Metode Geolistrik Tahanan Jenis Marjuni, Marjuni; Minarto, Ori
Jurnal Fisika Flux: Jurnal Ilmiah Fisika FMIPA Universitas Lambung Mangkurat Vol 21, No 3 (2024): Jurnal Fisika Flux: Jurnal Ilmiah Fisika FMIPA Universitas Lambung Mangkurat
Publisher : Lambung Mangkurat University Press

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20527/flux.v21i3.17697

Abstract

Praktikum pengukuran geolistrik yang didasarkan pada resistivitas tanah/batuan biasanya dilakukan di luar ruangan di sekitar kampus dan bahkan sering juga dilakukan di tempat-tempat tertentu yang cukup jauh untuk mendapatkan litologi atau studi kasus yang heterogen, sehingga memberikan beberapa kendala seperti waktu dan biaya yang besar. Selain itu, pengolahan dan interpretasi data tidak dapat dilakukan cross-check dengan fakta litologi yang sebenarnya karena hal ini sangat sulit untuk dilakukan. Penelitian ini bertujuan membuat desain penampang litologi dengan menyediakan beberapa jenis tanah/batuan sebagai bahan penyusunnya sebagai media simulasi untuk praktikum. Pengukuran geolistrik pada media simulasi ini menggunakan 3 konfigurasi, yaitu Wenner alfa, Wenner Schlumberger dan Dipole-dipole dengan spasi 5 cm. Berdasarkan hasil pengukuran dan pengolahan data, dapat disimpulkan bahwa media simulasi ini dapat digunakan sebagai media praktikum geolistrik tahanan jenis. 
Studi Mikrozonasi Kerentanan Seismik dan Bangunan Bertingkat Menggunakan Metode HVSR (Horizontal to Vertical Spectral Ratio) di Kabupaten Bengkulu Selatan Novtrisa, Indri; Mase, Lindung Zalbuin; Refrizon, Refrizon; Misliniyati, Rena; Amri, Khairul; Hadi, Arif Ismul; Fadli, Darmawan Ikhlas
Jurnal Fisika Flux: Jurnal Ilmiah Fisika FMIPA Universitas Lambung Mangkurat Vol 21, No 3 (2024): Jurnal Fisika Flux: Jurnal Ilmiah Fisika FMIPA Universitas Lambung Mangkurat
Publisher : Lambung Mangkurat University Press

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20527/flux.v21i3.19616

Abstract

Mikrozonasi seismik merupakan proses pemetaan untuk memprediksi respon tanah terhadap guncangan seismik yang dapat digunakan sebagai acuan mitigasi bencana dan pembangunan yang akan dilakukan di Kabupaten Bengkulu Selatan. Penelitian ini menggunakan data shapefile peta administrasi dan data mikrotremor sebanyak 69 titik. Data mikrotremor kemudian diolah menggunakan metode HVSR (Horizontal to Vertical Spectral Ratio) untuk mendapatkan kurva HVSR. Pengolahan data ini menghasilkan nilai faktor amplifikasi ( ) pada rentang 1,17 – 4,07, nilai frekuensi natural ( ) antara 0,25 Hz – 14,40 Hz, indeks kerentanan seismik (Kg) antara 0,26 – 11,78,  dan nilai periode dominan ( ) antara 0,07 s – 3,86 s. Parameter ini selanjutnya digunakan untuk membuat peta sebaran yang akan memberikan gambaran mengenai distribusi spasialnya. Selain itu, potensi bangunan yang rentan terhadap bencana seismik dengan ketinggian 1 hingga 2 lantai teridentifikasi di Kecamatan Pino Raya dan Kecamatan Kota Manna, sedangkan bangunan dengan ketinggian 1 hingga 4 lantai berada di Kecamatan Pasar Manna.. Berdasarkan nilai-nilai parameter tersebut, dapat disimpulkan bahwa lokasi penelitian masuk ke dalam kategori zona rendah terhadap getaran gempa bumi. Hasil penelitian ini dapat digunakan dalam perencanaan mitigasi bencana, khususnya dalam upaya peningkatan ketahanan bangunan di wilayah yang diteliti.
Analisis Pemantauan Dosis Efektif Jaringan Paru-Paru pada Pekerja Radiasi Menggunakan Thermoluminescent Dosimeter (TLD) di RSUD A.W. Sjahranie Samarinda Rappan, Erlin; Munir, Rahmawati; Putri, Erlinda Ratnasari
Jurnal Fisika Flux: Jurnal Ilmiah Fisika FMIPA Universitas Lambung Mangkurat Vol 21, No 3 (2024): Jurnal Fisika Flux: Jurnal Ilmiah Fisika FMIPA Universitas Lambung Mangkurat
Publisher : Lambung Mangkurat University Press

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20527/flux.v21i3.17384

Abstract

Thermoluminescent Dosimeter (TLD) is a personal dosimeter to measure radiation exposure which can capture and store radiation energies. It hits them and emits them in the form of light when heated. TLD aims to measure radiation exposure received by radiation workers. The purpose of this study was to determine the effective dose value of lung tissue at the Radiology, Radiotherapy, and Nuclear Medicine Installations in 2018 until 2021 at A.W. Sjahranie Samarinda Hospital. Data processing in this study was carried out using quantitative analysis techniques, i.e., descriptive statistics. This analysis technique used secondary data obtained from the results of recapitulation of absorbed dose values in Radiology, Radiotherapy, and Nuclear Medicine Installations. Data processing was performed by multiplying the equivalent dose values by the lung tissue weight factor. The results of these calculations are visualized in the form of graphs based on the effective lung doses for years and types of installation. Based on this study, in general, the highest to lowest effective dose values for lung tissue are from the Radiotherapy, the Nuclear Medicine, and the Radiology Installations. It matches theoretically in various references.
Determination of Radiation Dose Rate and Dose Analysis of Radiation Workers in Radiology Installation at Pariaman Hospital Fardela, Ramacos; Andriati, Susi; Irka, Feriska Handayani; Mousa, Almahdi; Wahyuni, Ade
Jurnal Fisika Flux: Jurnal Ilmiah Fisika FMIPA Universitas Lambung Mangkurat Vol 21, No 3 (2024): Jurnal Fisika Flux: Jurnal Ilmiah Fisika FMIPA Universitas Lambung Mangkurat
Publisher : Lambung Mangkurat University Press

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20527/flux.v21i3.20529

Abstract

Diagnostic radiology is the most significant contributor to irradiation in the general population. Unnecessary irradiation of workers, patients, and the public during radiological procedures should be significantly reduced without affecting the medical diagnostic value. This study was conducted to analyze and evaluate the radiation dose rate, radiation protection facilities and radiation worker dose of Radiology Installation of Pariaman Regional Hospital. The method of determining the radiation dose rate at the Radiology Instalansi of Pariaman Hospital uses a PDR 303 gamma surveymeter and the rooms to be measured are CT-Scan rooms, conventional X-rays and mammography. Collecting data on radiation protection facilities, then it will be analyzed based on Nuclear Energy Regulatory Agency Regulation No. 4 of 2020 and radiation worker dose data in 2023 will be analyzed based on Nuclear Energy Regulatory Agency Regulation No. 4 of 2013. The results of the study showed that the radiation dose rate around the CT-Scan room was found to be (0.24-1.61) μSv/hour, the conventional X-ray room with irradiation using the minimum exposure factor obtained a radiation dose rate around the room ranging from (0.013-0.33) μSv/hour and with the maximum exposure factor obtained a dose rate around the room of (0.33-1.08) μSv/hour and the mammography room obtained a radiation dose rate of (0.03-0.40) μSv/hour. The radiology room facilities used by Pariaman Hospital are in accordance with the standards set by Nuclear Energy Regulatory Agency Regulation No. 4 of 2020. And the dose rate received by radiation workers at Pariaman Hospital is below the Dose Limit Value set by Nuclear Energy Regulatory Agency Regulation No. 4 of 2013. Based on the results of this study, it is found that there are several measurement points in the CT-Scan and conventional X-ray rooms that exceed the community dose limit value.

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