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Progressive Physics Journal
Published by Universitas Mulawarman
ISSN : -     EISSN : 27227707     DOI : https://doi.org/10.30872/ppj.v3i2
Core Subject : Health, Science, Engineering,
Astronomy Control & Systems Engineering Earth & Planetary Sciences Electrical & Electronics Engineering Energy Health Professions Materials Science & Nanotechnology Physics
Progressive Physics Journal adalah kumpulan hasil penelitian berbagai cabang ilmu Fisika, seperti Fisika Teori, Fisika Material, Fisika Elektronika & Instrumentasi, Fisika Medik, Fisika Komputasi dan Pemodelan, Geofisika, Oseanografi, dan cabang ilmu Fisika lainnya yang masih relevan. Progressive Physics Journal terbit sebanyak 2 kali dalam setahun. Ilmu Fisika perlu dikomunikasikan kepada masyarakat untuk diambil manfaatnya baik secara langsung maupun tidak langsung dan untuk perkembangan ilmu Fisika itu sendiri. Progressive Physics Jornal, sebagaimana nama tersebut diberikan, dimaksudkan tidak hanya untuk mengkomunikasikan ilmu Fisika yang bersifat atraktif dan inovatif, tapi juga progresif.
Arjuna Subject : Fisika dan Astronomi - Fisika dan Astronomi (Lain-Lain)
Articles 82 Documents
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Identifikasi Struktur Bawah Permukaan Daerah Potensi Panas Bumi Di Daerah Tulehu Menggunakan Metode Gravitasi Indra Reza Kurniawan; Radhitya Perdhana; Muliadi
Progressive Physics Journal Vol. 6 No. 2 (2025): Progressive Physics Journal
Publisher : Program Studi Fisika, Jurusan Fisika, FMIPA, Universitas Mulawarman

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30872/w66fps36

Abstract

Indonesia has great geothermal potential, Indonesia is located in the path of volcanoes or the ring of fire can also be called the ring of fire. Maluku Province, especially the Ambon and Seram islands, has geothermal energy potential that can be developed as an alternative renewable source. One of the geothermal potentials located in the Maluku islands is WKP Tulehu which has a fairly high temperature reaching 134.09°C–251°C. One method that can be used to identify the subsurface layer of geothermal areas is the gravity method using GGMPlus gravity data. The 2013 Global Gravity Model Plus (GGMPlus) secondary gravity data is a global gravity model data that has ultra–high resolution with grid spacing between data points ~220 m in the north–south direction. The results of the identification of geological structures using gravity methods using regional anomaly values with a range of 80.7–101.3 mgal. The depth of the regional anomaly in the study area is estimated to be 1.862 km deep. There are 7 faults found in the 4 research cross sections. These faults are located in cross section A–A' at a distance of 8.30 km, cross section B–B' at a distance of 1.9 km and 5.1 km, cross section C–C' at a distance of 2.450 km and at a distance of 11.6 km, and cross section D–D' 2.248 km and 4.5 km.
Identifikasi Ketebalan Tanah Gambut Menggunakan Metode Geolistrik Resistivitas Konfigurasi Wenner Fiki Husnial Umam; Radhitya Perdhana; Zulfian
Progressive Physics Journal Vol. 6 No. 2 (2025): Progressive Physics Journal
Publisher : Program Studi Fisika, Jurusan Fisika, FMIPA, Universitas Mulawarman

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30872/zrg5ej60

Abstract

Peat soils are organic deposits that have a high carbon content. West Kalimantan is the second largest province in Kalimantan with a total peat ecosystem of around 1,729,980 Ha. In 2018, it was recorded that the peat area in West Kalimantan Province was 1,543,752 Ha. Its utilization in this province has increased every year although it has not yet reached a large area. Identification of peat thickness can be done with the resistivity geoelectric method. In this study, subsurface modeling was carried out using the Wenner configuration to determine the thickness of the peat layer. The modeling results are in the area of Perdana Street, Bansir Darat Village, Southeast Pontianak. The depth of the peat layer in the research area was found at a depth of 1.30 m to reach more than 5.5 m with a range of peat layer resistivity values obtained in the range of 131 Ωm - 267 Ωm. The clay layer is found at a depth of 1.31m - 8m. with a resistivity value range of 1.80 Ωm - 131 Ωm.
Pengaruh Variasi Surfaktan terhadap Struktur, Morfologi, dan Aktivitas Katalitik TiO₂ Mesopori yang Disintesis dengan Metode Kopresipitasi Sarinah Pakpahan; Aswin; Rimawanto Gultom
Progressive Physics Journal Vol. 6 No. 2 (2025): Progressive Physics Journal
Publisher : Program Studi Fisika, Jurusan Fisika, FMIPA, Universitas Mulawarman

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30872/93g18g81

Abstract

This study examines the effect of different surfactants: Cetyltrimethylammonium Bromide (CTAB), Didodecyldimethylammonium Bromide (DDAB), and Methyltrioctylammonium Bromide (MTAB) on the synthesis of mesoporous TiO2 using the co-precipitation method. Characterization was performed using Raman Spectroscopy, BET (Brunauer-Emmett-Teller) surface area measurement, Differential Scanning Calorimetry (DSC), and X-ray Diffraction (XRD) techniques. The results indicate that the highest surface area was achieved by CTAB 98.32 m2/g, while MTAB yielded the greatest pore volume 0.2517 cc/g and the largest average pore diameter 10.498 nm. Furthermore, a simple catalytic activity test was performed through the degradation of methylene blue under UV irradiation, which showed that the TiO2–MTAB sample had the highest degradation rate of 0.032 min-1. This indicates a positive correlation between pore size and photocatalytic efficiency.
Application of Physics-Informed Neural Networks (PINNs) for the Numerical Solution of the Time-Independent Schrödinger Equation Hamdi Akhsan; Khoirun Nisa; Putri Nurhikmah; Wailaina; Melly Ariska
Progressive Physics Journal Vol. 6 No. 2 (2025): Progressive Physics Journal
Publisher : Program Studi Fisika, Jurusan Fisika, FMIPA, Universitas Mulawarman

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30872/6881zx10

Abstract

This work investigates the application of Physics-Informed Neural Networks (PINNs) for numerical solutions to the time-independent Schrödinger equation of the quantum harmonic oscillator in one, two, and three spatial dimensions. Fully connected neural architectures are constructed to approximate wavefunctions over finite symmetric domains, while the corresponding energy eigenvalues are treated as trainable parameters. The training strategy utilizes randomly sampled interior points to enforce the Schrödinger operator residual and boundary points to impose vanishing wavefunction constraints. For the 1D quantum harmonic oscillator, the learned ground-state wavefunction yields an energy of E = 1.2939 after 12,000 iterations. In the 2D configuration, convergence is achieved at E = 2.1352 within 14,000 iterations, whereas the 3D model attains E = 2.6377 after 12,000 iterations. These values agree with the expected trend of increasing ground-state energy with dimensionality, although deviations from exact analytical values indicate that PINNs may experience optimization challenges and sensitivity to sampling density and boundary enforcement. Despite these limitations, the trained models successfully capture the characteristic spatial symmetries and Gaussian-like envelope of harmonic oscillator eigenstates across all dimensions. These findings demonstrate that PINNs offer a flexible, mesh-free alternative for solving stationary quantum systems, particularly when analytical or conventional numerical approaches become impractical. The method shows strong potential for higher-dimensional quantum applications, even though further refinement such as improved sampling, loss balancing, and network depth remains necessary to suppress residual error and enhance eigenvalue accuracy.
Studi Literatur Terkait Tantangan Biofisika Di Masa Depan Dalam Bidang Kedokteran Dan Teknologi Kesehatan Rilla Ilma Ningrum; Muliyana Muliyana; Nazwa Adhelia Shabira; Siti Rahmania; Devina Rayzy Perwitasari Sutaji Putri
Progressive Physics Journal Vol. 7 No. 1 (2026): Progressive Physics Journal
Publisher : Program Studi Fisika, Jurusan Fisika, FMIPA, Universitas Mulawarman

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30872/ya5mm834

Abstract

Biophysics is an interdisciplinary branch of science that integrates the principles of physics in studying biological systems, and has become an important foundation in the development of modern medical technology. Its applications cover a wide range of fields, from medical imaging, radiation therapy, biological systems modeling, to high-precision biomolecular technology. As the complexity of the global health system increases, the demands for efficiency, accuracy, and personalization of medical services are increasing. In this context, the role of biophysics is becoming increasingly important, while facing complex and multidimensional challenges. This literature study aims to identify and examine the main challenges faced by biophysics in its contribution to the future of medicine and health technology. Through a review of various recent scientific publications, it was found that these challenges include: the need for multi-scale biological data integration, both at the molecular, cellular, and organ levels, the development of theoretical models and physical simulations that are able to accurately represent the dynamics of biological systems, the limitations of real-time non-invasive diagnostic and treatment technologies, and ethical, safety, and regulatory issues in the implementation of biophysical technology in clinical practice.In addition, there are still gaps in cross-disciplinary collaboration, both between physicists, biologists, and medical personnel, as well as in educational contexts that do not fully support the integration of biophysics into the medical curriculum. This study concludes that collaborative and holistic strategic research, increasing scientific literacy in biophysics, and innovative regulatory and policy support are key to addressing these challenges and ensuring that biophysics can continue to be a driving force for innovation in future healthcare systems.
Analisis Penggunaan Surveymeter Ionization Chamber dalam Pengukuran Kebocoran dan Paparan Radiasi di Rumah Sakit Elyka Elyka; Andi Wahida; Erlinda Ratnasari Putri
Progressive Physics Journal Vol. 7 No. 1 (2026): Progressive Physics Journal
Publisher : Program Studi Fisika, Jurusan Fisika, FMIPA, Universitas Mulawarman

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30872/8r8a1564

Abstract

Radiation safety is an essential aspect of hospital operations that utilize ionizing radiation sources; therefore, continuous monitoring of radiation exposure and leakage is required to protect radiation workers, patients, and the surrounding community. Uncontrolled radiation exposure may pose health risks, highlighting the need for reliable and accurate measurement instruments. This study employs a systematic literature review of 17 scientific articles published between 2021 and 2025 to analyze the effectiveness of ionization chamber–based survey meters in measuring radiation leakage and exposure in hospital environments. The reviewed studies utilized ionization chamber survey meters to evaluate environmental radiation dose rates, occupational exposure of radiation workers, and radiation leakage from medical equipment across various clinical modalities. Several types of ionization chambers were reported, including pressurized ionization chamber survey meters and Farmer ionization chambers. The results indicate that ionization chamber–based survey meters exhibit high measurement accuracy and stability and are capable of consistently detecting radiation exposure and leakage under diverse clinical conditions. The measured radiation exposure and leakage values were generally below the dose limit values established by radiation safety regulations. Therefore, ionization chamber survey meters are effective instruments for supporting environmental dose control, the implementation of the ALARA principle, and the fulfillment of radiation safety standards in hospitals.
Analisis Perbandingan Detektor Geiger Muller dan Scintillation dalam Aplikasi Klinik dan Proteksi Radiasi di Rumah Sakit Aisya Villea Rania Az Zahra; Dzakya Ilmi; Erlinda Ratnasari Putri
Progressive Physics Journal Vol. 7 No. 1 (2026): Progressive Physics Journal
Publisher : Program Studi Fisika, Jurusan Fisika, FMIPA, Universitas Mulawarman

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30872/k1ygrd80

Abstract

The use of ionizing radiation in medical procedures requires accurate and reliable monitoring to ensure the safety of healthcare workers and patients. Radiation detectors such as Geiger–Müller (GM) and scintillation detectors are widely utilized in hospitals, yet they differ significantly in their working principles, sensitivity, and suitability for clinical and protection purposes. This study aims to compare the performance of GM and scintillation detectors through a literature review approach. Articles were collected from Google Scholar using keywords related to GM detectors, scintillation detectors, clinical applications, and radiation protection. Selected studies were examined based on operational mechanisms, sensitivity, dose-rate range, energy discrimination capability, and practical use in hospital settings. The analysis shows that GM detectors operate through gas ionization and produce pulses of uniform amplitude, enabling only the counting of radiation events without providing energy information. These characteristics make GM detectors more appropriate for environmental surveillance, background monitoring, and high-dose alert systems due to their wide measurement range and stable response. In contrast, scintillation detectors such as NaI(Tl) generate light output proportional to the absorbed energy, allowing spectral analysis, radionuclide identification, and more accurate dose assessment. Their high sensitivity and superior energy resolution make them more suitable for clinical tasks, including gamma spectroscopy, nuclear medicine imaging, radiotherapy dose verification, and beam quality assessment. Overall, GM detectors are advantageous for routine radiation protection monitoring, while scintillation detectors are preferred for clinical applications requiring precise measurement and energy characterization.
Studi Komparatif Respons Energi dan Sensitivitas TLD-100 dan TLD-100H pada Radiasi Foton LINAC 6 MV Ega Salsa Billa; Aulia Gamboa Rodriques; Erlinda Ratnasari Putri
Progressive Physics Journal Vol. 7 No. 1 (2026): Progressive Physics Journal
Publisher : Program Studi Fisika, Jurusan Fisika, FMIPA, Universitas Mulawarman

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30872/k866t416

Abstract

Accurate radiation dose measurement is essential in radiotherapy dosimetry, particularly for treatments delivered using 6 MV photon beams from a Linear Accelerator (LINAC). Thermoluminescent dosimeters (TLDs) are extensively used in clinical practice due to their small dimensions, near tissue-equivalent response, and reliable dosimetric performance. Among these, TLD-100 (LiF:Mg,Ti) has long been established as a reference dosimeter, while TLD-100H (LiF:Mg,Cu,P) has been developed to provide enhanced sensitivity. This study presents a comparative evaluation of the energy response and sensitivity of TLD-100 and TLD-100H under 6 MV LINAC photon irradiation, based on a critical review of previous experimental, Monte Carlo, and clinical studies. The reviewed results indicate that TLD-100 exhibits a stable energy response with relatively low energy dependence in high-energy photon beams, supporting its suitability for clinical dose verification. In contrast, TLD-100H demonstrates markedly higher sensitivity, making it particularly advantageous for low-dose and scattered radiation measurements, albeit with increased susceptibility to variations in irradiation conditions and calibration procedures. These findings highlight that the choice of thermoluminescent dosimeter in radiotherapy should be guided by the intended dosimetric application, with careful consideration of the balance between energy response stability and sensitivity.
Analisis Geospasial Berbasis Pemodelan Geofisika: Kuantifikasi Disparitas Distribusi Fasilitas Pendidikan Menggunakan metode NNA dan Buffer Di Kecamatan Samarinda Ulu Warda Nur Rasya; Oktavianus Claudio; Salma Asy-Syifa; Nanda Khoirunisa
Progressive Physics Journal Vol. 7 No. 1 (2026): Progressive Physics Journal
Publisher : Program Studi Fisika, Jurusan Fisika, FMIPA, Universitas Mulawarman

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30872/0ewjth66

Abstract

Spatial inequality in educational access represents a critical issue that requires an objective and measurable geophysical approach. This study applies geophysical modeling through the Nearest Neighbor Analysis (NNA) and Buffer methods based on Geographic Information Systems (GIS) to analyze the spatial distribution patterns of educational facilities in Samarinda Ulu District, Samarinda City. Spatial data from 66 educational institutions (33 elementary schools, 17 junior high schools, and 15 senior high/vocational schools) serving 21,349 students were analyzed using ArcGIS version 10.8. The NNA technique considered parameters such as inter-location distance, facility point density, and administrative area size. The quantitative analysis revealed a spatial significant clustered pattern (NNA index < 1.0), indicating a non-uniform spatial concentration of educational facilities. The Buffer analysis further identified disparities in Air Hitam and Bukit Pinang subdistricts. Geospatial analysis delineated two contrasting zones: a high-access zone in Air Putih (30,249 residents) and Gunung Kelua (13,630 residents) with an educational facility density 2.3 times higher than the low-access zone in Bukit Pinang (12,160 residents). This spatial disparity creates an average travel distance gap of 3.2 km for students in underserved areas, affecting both accessibility and educational equity. The findings provide empirical, geophysics-based evidence of unequal educational facility distribution, serving as a foundation for optimizing educational infrastructure planning. The resulting spatial model recommends the addition of new school units in deficit zones, prioritizing development along the Bukit Pinang–Dadi Mulya corridor to achieve a more balanced distribution. This research contributes to the advancement of applied geophysical methodologies for urban planning and may serve as a policy reference for local governments to promote equitable educational access based on quantitative spatial analys
Structural Modeling and XRD Analysis of (PVA:LiOH)–Fe₃O₄ Composite Electrolyte for Supercapacitor Applications Rahmawati Munir; Dadan Hamdani; Darnah Andi Nohe; Rahmiati Munir; Igor Levi Satriani; Siti Fatimah; Sahara Hamas Intifadhah
Progressive Physics Journal Vol. 7 No. 1 (2026): Progressive Physics Journal
Publisher : Program Studi Fisika, Jurusan Fisika, FMIPA, Universitas Mulawarman

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30872/1twm3k85

Abstract

The development of supercapacitors requires electrolyte membranes with high ionic conductivity and magnetic properties to enhance energy storage performance. This study aims to visualize the crystal structure and simulate the X-ray diffraction (XRD) patterns of the (PVA:LiOH)–Fe₃O₄ composite electrolyte membrane using the VESTA software as the basis for analyzing its potential application in magnetic supercapacitors. The material was synthesized through the sol–gel method, with PVA serving as the polymer matrix, LiOH as the lithium ion source, and Fe₃O₄ as the magnetic filler. Crystal structure characterization was performed using XRD measurements, followed by modeling of the Fe₃O₄ and LiOH crystalline phases based on reference CIF data, while PVA was represented as an amorphous matrix. The simulated multiphase XRD pattern was validated against experimental data to confirm the agreement between diffraction peaks and crystal phases. The three-dimensional supercell visualization revealed the spatial distribution of Fe₃O₄ and LiOH particles within the polymer matrix. Electrical measurements demonstrated an increase in ionic conductivity from the order of 10⁻⁴ S/cm in PVA:LiOH membranes to 10⁻³ S/cm after Fe₃O₄ incorporation. This enhancement is attributed to the formation of more efficient ion transport pathways resulting from the interaction between the magnetic filler and the polymer matrix. The simulated XRD results reinforce the correlation between crystal structure, phase distribution, and ionic conductivity performance. These findings suggest that the (PVA:LiOH)–Fe₃O₄ composite possesses strong potential as an electrolyte membrane for magnetic supercapacitors, opening opportunities for developing materials with combined electrochemical and magnetic properties to improve energy storage efficiency.

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