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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 8 Documents
 1 
Search results for , issue "Vol. 6 No. 1 (2025): Progressive Physics Journal" : 8 Documents clear
In Vivo Dosimetry pada Radioterapi Menggunakan Teknik Modulated Arc Therapy (VMAT) dan Intensity Modulated Radiation Therapy (IMRT) Ningrum, Rilla Ilma; Muliyana, Muliyana; Putri, Erlinda Ratnasari
Progressive Physics Journal Vol. 6 No. 1 (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/ppj.v6i1.1444

Abstract

Radiation therapy is an effective method for treating cancer by using ionizing radiation to kill cancer cells or treat tumors. In radiation therapy planning, effective techniques are essential to ensure maximum dose to the tumor while protecting surrounding healthy tissue. In vivo dosimetry (IVD) measures the radiation dose received by cancer patients during therapy to ensure accurate delivery. This study reviews prior research comparing various dosimeters used in Volumetric Modulated Arc Therapy (VMAT) and Intensity Modulated Radiation Therapy (IMRT). The methodology involved a literature review of articles published between 2013 and 2023, focusing on in vivo dosimetry in VMAT and IMRT. The articles were sourced from databases like Google Scholar, ResearchGate, ScienceDirect, Elsevier, and PubMed. The findings suggest that dosimeter EPID shows significant effectiveness in detecting and verifying radiation doses in both VMAT and IMRT. Overall, VMAT demonstrates superior accuracy, consistent dose distribution, and better dose limitation to at-risk organs compared to IMRT. This study supports the use of VMAT for enhancing safety and accuracy in radiation therapy, providing a framework for policy improvements in radiotherapy services.
Evaluasi Alat Dosimeter untuk Penelitian Radionuklida pada Kedokteran Nuklir Widianti, Lisa; Marta, Devi; Nur Lathiifa, Gusti Annisa; Putri, Erlinda Ratnasari
Progressive Physics Journal Vol. 6 No. 1 (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/ppj.v6i1.1447

Abstract

Radionuclides are widely used in nuclear medicine for diagnosis and therapy, but precise measurement of radiation dose is essential to keep patients and medical personnel safe. Dosimeters play a key role in measuring and evaluating radiation dose. This article discusses various types of dosimeters that are often used, such as Thermoluminescent Detectors (TLD), Optically Stimulated Luminescence Dosimeters (OSLD), and Radiochromic films (Gafchromic EBT3). The discussion covers how each device works, advantages, disadvantages, and performance. The review shows that each dosimeter has certain advantages: TLD is suitable for personal dose measurement, OSLD is effective for monitoring exposure in the work environment, and Gafchromic EBT3 helps visualise dose distribution in radiation therapy. The article also emphasises the need for innovation in dosimetry technology to improve accuracy, efficiency and safety. This review is expected to serve as a guide for researchers and practitioners in choosing the right dosimeter, while encouraging the development of better technologies to support safe and effective nuclear medicine.
Tinjauan Struktur Dan Karakter Mineral Padatan Dengan Menggunakan Metode X-Ray Diffraction (XRD): Review Singkat Prayoga, Ahmad Yudis Esa; Budiman, Christoper Michael; Intifadhah, Sahara Hamas
Progressive Physics Journal Vol. 6 No. 1 (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/ppj.v6i1.1449

Abstract

Indonesia is rich in various types of rocks, including igneous, sedimentary, and metamorphic rocks. Igneous and metamorphic rocks are commonly found in several regions of Indonesia, making the mineral resources of these rocks have significant potential in the country. X-ray diffraction (XRD) technique has advanced greatly in material characterization. The purpose of this research is to review various studies that discuss mineral characterization of rocks using XRD, as well as to examine different sample preparation methods, interpretation of XRD diffraction patterns, and how this technique is used to determine the mineral composition and crystallographic properties of materials in various types. The research methods used are highly varied for material processing, such as calcination, magnetic separation, slow evaporation, and grinding. The data variables obtained from this study include minerals, sample collection methods, structure, diffraction angles, composition, and their applications.
Karakterisasi Sifat Absorbansi Material Menggunakan Metode Spektrofotometri Sinar Ultra Violet dan Visible (UV-Vis) Pada Material Organik: Review Singkat Salamah, Alifah Balqis; Maharani, Yuliana Juice; Intifadhah, Sahara Hamas
Progressive Physics Journal Vol. 6 No. 1 (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/ppj.v6i1.1450

Abstract

In general, organic materials have been studied to have many benefits. One of the benefits of organic materials is that they can be used as the main ingredient for making sunscreen or sun protection, active ingredients in semiconductors, bioreductors, natural coloring materials and others. The Ultra Violet and Visible Light Spectrophotometry (UV-Vis) technique is a technique that has been widely used in research, especially in knowing the potential utilization of organic materials. The purpose of this research is to review various studies that discuss the characterization of organic materials using the Ultra Violet and Visible Light Spectrophotometry (UV-Vis) method to determine the benefits of organic materials by analyzing absorbance values and wavelengths. The method used was a literature study from October 30, 2024 to December 4, 2024. The variables studied in this research are absorbance properties, wavelength and the benefits of organic materials. The results showed that organic materials such as kalakai sprouts and roots have potential as sunscreen, coffee beans have the highest caffeine content, and breadfruit leaves and moringa leaves function as semiconductor active ingredients. Avocado peels produce high flavonoid levels, and coconut shells are effective as a base material for water filters. Water hyacinth and binahong leaves were used in bioreductors and optical property studies of C-dots, while turmeric, moss, pineapple shells and red cabbage were effective as natural colorants. Chili peppers, cacao pods, kalamansi citrus leaves, and soursop leaves were extracted to determine the levels of active compounds
Bioplastik dari Limbah Pelepah Sawit:Tinjauan Potensi dan Tantangan dalam Pengembangan Material Ramah Lingkungan Sucaga, Siti Fadilah; Adikaning Rani, Seftilita Risqi
Progressive Physics Journal Vol. 6 No. 1 (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/ppj.v6i1.1456

Abstract

Limbah pelepah sawit merupakan produk sampingan dari industri kelapa sawit yang memiliki potensi besar untuk diolah menjadi bioplastik. Bahan ini dapat dimanfaatkan sebagai alternatif plastik ramah lingkungan. Artikel ini menyajikan tinjauan komprehensif mengenai potensi bioplastik berbasis limbah pelepah sawit, termasuk karakteristik fisik, mekanik, dan biodegradabilitasnya. Berbagai metode pengolahan, seperti ekstraksi, modifikasi, dan proses pencampuran dengan polimer lain, dieksplorasi untuk meningkatkan performa bioplastik. Komponen utama dalam pelepah sawit, seperti selulosa, hemiselulosa, dan lignin, berkontribusi terhadap performa material bioplastik. Selain itu, artikel ini membahas tantangan yang dihadapi dalam pengembangan bioplastik. Tantangan utama dalam pengembangan bioplastik ini meliputi biaya produksi yang tinggi, variasi kualitas bahan baku, dan perlunya penelitian lebih lanjut untuk meningkatkan kinerja material dalam aplikasi praktis. Hasil tinjauan ini diharapkan dapat memberikan wawasan bagi peneliti dan industri untuk mengeksplorasi lebih lanjut potensi limbah pelepah sawit sebagai sumber bioplastik yang berkelanjutan dan ramah lingkungan.
A Analisis Dosis Paparan Radiasi Sekitar Ruang Pemeriksaan CT-Scan Arafatillah, Siti
Progressive Physics Journal Vol. 6 No. 1 (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/ppj.v6i1.1499

Abstract

This thesis focuses on the analysis of radiation exposure around the CT-Scan room of Radiology Installation of Abdoel Wahab Sjahranie Samarinda Hospital. This study aims to determine the level of radiation exposure in the surrounding area and evaluate the level of exposure according to BAPETEN's safe limits. In addition, this thesis tries to identify areas with radiation potential that exceeds the safe limit and find out the cause. The research method includes data collection by direct measurement using a surveymeter. The results obtained show significant variations in exposure levels at each location. In the operator's room, the dose rate of 1.62 mSv/h exceeded the permissible limit for radiation workers, which was likely due to proximity to radiation sources and suboptimal protection. In the ultrasound room, the dose rate was 0.497 mSv/hour. This value is still below the controlled area limit but above the public safety limit of 0.1 mSv/hour. In the hallway, the measured dose rate was 0.462 mSv/hr which also exceeded the public limit, requiring access restrictions for the public. The garden area showed a dose rate of 0.604 mSv/hour, with high exposure for areas that may be accessed by the public. Therefore, practical recommendations include the addition of shielding, access restrictions, and installation of warning signs to reduce exposure in areas frequently accessed by the public.
Asesmen Potensi Energi Angin Menggunakan Metode Weibull dalam Perencanaan Pembangkit Listrik Tenaga Bayu di Kabupaten Gorontalo, Provinsi Gorontalo Aswin, Aswin; Pakpahan, Sarinah; Fauziah, Siti
Progressive Physics Journal Vol. 6 No. 1 (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/ppj.v6i1.1505

Abstract

This study presents a rigorous assessment of wind energy potential in Gorontalo Regency, Indonesia, through statistical modeling utilizing the two-parameter Weibull distribution applied to hourly wind speed data from 2022 to 2024 across three geographic zones and three elevation levels (50 m, 80 m, 100 m). The model exhibited strong statistical agreement with observed data, evidenced by high variation (R² > 0.9869) and low RMSE values (< 0.011), confirming its robustness in capturing wind behavior. Mean wind speeds, along with key Weibull-derived metrics—most probable wind speed (vmp) and wind speed for maximum energy contribution (vme)—showed a positive correlation with altitude, where zone 1 recorded the highest vme at 7.45 m/s at 100 m. Derived power density values indicated that Zones 1 and 3 fall within the "acceptable" classification (130.52 W/m² and 115.58 W/m², respectively), validating their technical viability. Simulated performance of the Goldwind GW 140/3.4 wind turbine revealed that Zone 1 yielded the highest annual energy output (Eout) of 10.34 GWh with a corresponding capacity factor (Cf) of 11.56%, followed by zones 3 and 2, which, while exhibiting lower outputs, maintained operational feasibility for decentralized small-to-medium scale deployment. Wind rose analysis confirmed predominant southeast and southern wind flows across all zones, offering critical input for optimizing turbine orientation. Collectively, the findings substantiate that zones 1 and 3 present favorable wind regimes for sustainable wind energy development, offering a data-driven foundation for future investment and regional energy planning.
Preliminary Investigation of pH-Dependent Optical Properties of Curcumin-Derived Carbon Dots Santika, Arum Sinda; Permatasari, Fitri Aulia; Iskandar, Ferry
Progressive Physics Journal Vol. 6 No. 1 (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/ppj.v6i1.1522

Abstract

Carbon dots (CDs) are photoluminescent nanoparticles smaller than 10 nm with excellent optical properties, including high photostability, UV and visible light absorption, water solubility, low toxicity, and good biocompatibility. These features make them attractive for biomedical, optoelectronic, and catalytic applications. Curcumin, a polyphenol from turmeric, possesses anti-inflammatory, antibacterial, anticancer, and antiviral properties, but its poor water solubility limits its biomedical use. In this study, CDs were synthesized from curcumin and urea via a solvothermal method at 140 °C for 180 minutes to improve curcumin's solubility. The effect of pH on the optical properties of CDs was investigated by adjusting acidity with citric acid and alkalinity with NaOH. UV-Vis and photoluminescence (PL) spectroscopy revealed that the optical properties of CDs are strongly influenced by pH, likely due to the presence of keto-enol tautomerism in curcumin. The pH sensitivity of these curcumin-derived CDs highlights their potential for biomedical applications such as photothermal therapy, bioimaging, drug delivery, and antiviral agents.

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