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All Journal Jurnal Penelitian Fisika dan Aplikasinya (JPFA) Jurnal Fisika Unand JURNAL ILMIAH PENDIDIKAN FISIKA AL BIRUNI Edufisika: Jurnal Pendidikan Fisika JOURNAL ONLINE OF PHYSICS Jurnal Fisika FLUX Jurnal Penelitian Sains JIKO (Jurnal Informatika dan Komputer) Rang Teknik Journal SELAPARANG: Jurnal Pengabdian Masyarakat Berkemajuan Jurnal Saintek Lahan Kering Jurnal Ipteks Terapan Jurdimas (Jurnal Pengabdian Kepada Masyarakat) Royal Ensiklopedia of Journal Jurnal Pendidikan Fisika dan Teknologi MONSU'ANI TANO Jurnal Pengabdian Masyarakat INTEGRITAS : Jurnal Pengabdian Jurnal Teknika BERNAS: Jurnal Pengabdian Kepada Masyarakat Natural Science: Jurnal Penelitian Bidang IPA dan Pendidikan IPA Jurnal Pengabdian kepada Masyarakat Nusantara Journal of Civil Engineering and Planning (JCEP) Journal of Multidisciplinary Applied Natural Science Jurnal Ipteks Terapan : research of applied science and education pendidikan, science, teknologi, dan ekonomi Jurnal Informatika Teknologi dan Sains (Jinteks) Indonesian Journal of Community Empowerment and Service J-Icon : Jurnal Komputer dan Informatika Atom Indonesia
Ramacos Fardela
Universitas Andalas
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PENENTUAN EMISI RADIASI TERMAL PADA BERBAGAI JENIS BAHAN Mousa, Almahdi; Purwaningsih, Sri; Ziarah, Hikmah; Ambarwati, Ria; Fardela, Romacos
EduFisika: Jurnal Pendidikan Fisika Vol 8 No 3 (2023): EduFisika: Jurnal Pendidikan Fisika Volume 8 Nomor 3 December 2023
Publisher : Program Studi Pendidikan Fisika FKIP Universitas Jambi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59052/edufisika.v8i3.29625

Abstract

The research aims to measure and compare the amount of thermal radiation emitted by various materials with different colors and textures, and to calculate the emissivity of each material. Experiments were carried out using four surface variations of the cube. The results show that the black surface of the Leslie cube emitted the most thermal radiation, followed by the dull, shiny, and white surfaces. The average value of thermal radiation output for each surface was 3.4 mV for black material, 1.6 mV for white material, 2.4 mV for shiny colored materials, and 2.8 mV for dull colored materials. The amount of power obtained for each surface was 1.9 x 10-8 Watts, 0.87 x 10-8 Watts, 1.3 x 10-8 Watts, and 1.6 x 10-8 Watts, respectively. The emissivity of each material, which is the ratio of the thermal radiation emitted by the material to that of a black body at the same temperature, was 1, 0.458, 0.684, and 0.842, respectively. Based on the sensor output value, it can be concluded that black cloth is the most effective material in transmitting thermal radiation energy compared to glass, cardboard, and styrofoam. The research also provides empirical data and calculations of the thermal radiation and emissivity of different materials, which can be used for further analysis and applications. The research contributes to the literature on physics education and thermal radiation by demonstrating a practical and engaging way of teaching and learning the concept of thermal radiation using a Leslie cube.
Analisis Dosis OAR Pada Radioterapi Kanker Payudara Sinistra Di Rumah Sakit Universitas Andalas Fardela, Ramacos; Putri, Adinda Mahesa; Andriani, Innes; Diyona, Fiqi; Analia, Rika; Mardiansyah, Dedi
Natural Science: Jurnal Penelitian Bidang IPA dan Pendidikan IPA Vol 9, No 2 (2023)
Publisher : Universitas Islam Negeri Imam Bonjol Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15548/nsc.v9i2.6785

Abstract

Kanker payudara menempati urutan pertama di Indonesia dan menjadi salah satu penyumbang kematian utama akibat kanker. Penanganan Kanker payudara dapat dilakukan menggunakan terapi radiasi atau biasa disebut radioterapi. Salah satu modalitas yang sering digunakan dalam radioterapi adalah Linear Accelerator (Linac). Agar terapi radiasi dapat mengenai target kanker dan aman Organ-At-Risk (OAR) perlu dilakukan evaluasi perencanaan terapi radiasi. Evaluasi dilakukan terhadap dua teknik perencanaan terapi radiasi yaitu teknik Three Dimensional Conformal Radiotherapy (3D-CRT) dan Intensity Modulated Radiation Therapy (IMRT). Uji terapi radiasi dilakukan terhadap 3 orang pasien kanker payudara kiri. Hasil analisis dosis pada OAR menggunakan teknik 3D-CRT diperoleh sebaran dosis target dan perlindungan terhadap OAR lebih baik dibandingkan dengan teknik perencanaan 2D. Perencanaan terapi radiasi terbaik diperoleh pada teknik IMRT. Pada teknik perencanaan tersebut diperoleh sebaran dosis lebih homogen pada target maupun capaian dosis pada OAR sekitar target kanker.
Pengayaan Materi Fisika untuk Meningkatkan Pemahaman Siswa Terhadap Konsep Dinamika Rotasi dan Keseimbangan Benda Tegar Fardela, Ramacos; Budiman, Arif; Mardiansyah, Dedi; Muttaqin, Afdhal; Shafii, Mohammad Ali; Vonnisa, Mutya; Namigo, Elistia Liza; Pujiastuti, Dwi; Handani, Sri; Fitriyani, Dian; Mahyudin, Alimin; -, Astuti
INTEGRITAS : Jurnal Pengabdian Vol 8 No 1 (2024): JANUARI - JULI
Publisher : Lembaga Penelitian dan Pengabdian kepada Masyarakat - Universitas Abdurachman Saleh Situbondo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36841/integritas.v8i1.4046

Abstract

Dinamika rotasi dan keseimbangan benda tegar adalah topik Fisika yang seringkali dijadikan sebagai materi yang sulit oleh siswa di tingkat SMA karena melibatkan konsep fisika yang lebih kompleks dan matematis daripada beberapa topik lainnya. Untuk mengatasi kesulitan ini, penting untuk memiliki metode pengajaran yang efektif yang menggabungkan demonstrasi visual, eksperimen praktikum, dan pemahaman konsep secara mendalam. Pengabdian dosen fisika untuk membantu pemahaman konsep dinamika rotasi dan keseimbangan benda tegar di SMA dapat dilakukan melalui penyampaian materi yang interaktif dan mudah dimengerti. Departemen Fisika, FMIPA, Universitas Andalas melakukan kegiatan pengabdian ini di SMA N 1 Gunung Talang, Kabupaten Solok, Sumatera Barat. Kegiatan dilakukan melalui beberapa tahap yaitu tahapan persiapan, tahapan pelaksanaan, dan tahapan evaluasi. Hasil pengabdian yang dilakukan mampu meningkatkan pemahan siswa tentang materi Dinamika rotasi dan keseimbangan benda tegar dilihat dari hasil test yang diberikan. SMAN 1 Gunung Talang berharap kegiatan seperti ini dapat dilanjutkan pada pengabdian berikutnya sehingga dapat menumbuhkan minat siswa dalam pelajaran sains khusus nya Fisika.
Pengabdian Untuk Meningkatkan Keterampilan Menyelesaikan Masalah Kinematika Pada Siswa Di Sma N 1 Gunung Talang Fardela, Ramacos; Adrial, Rico; Mardiansyah, Dedi; Muttaqin, Afdhal; Milvita, Dian; Usna, Sri Rahayu Alfitri; Firmawati, Nini; Oktamuliani, Sri; Irka, Feriska Handayani; Afdal, Afdal; Yusfi, Meqorry
Jurdimas (Jurnal Pengabdian Kepada Masyarakat) Royal Vol 7, No 1 (2024): Januari 2024
Publisher : STMIK Royal

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33330/jurdimas.v7i1.2885

Abstract

Kinematika adalah cabang ilmu fisika yang fokus pada pemahaman gerakan benda, tanpa mempertimbangkan gaya yang berpengaruh padanya. Hal ini sering menjadi materi yang rumit bagi siswa di tingkat SMA, karena memerlukan pemahaman tentang konsep-konsep seperti kecepatan, percepatan, waktu, jarak, dan hubungan antara mereka. Universitas Andalas memiliki Program Studi S1 Fisika di bawah Departemen Fisika Fakultas Matematika dan Ilmu Pengetahuan Alam. Setiap semster Departemen Fisika selalu mengadakan pengabdian kepada masyarakat sesuai dengan salah satu Tri Dharma Perguruan Tinggi. Salah satu pengabdian yang rutin dilakukan Departemen Fisika setiap semester adalah membina SMA di lingkungan Sumatera Barat. Pengabdian tentang pengayaan konsep kinematika di SMA dapat menjadi salah satu upaya yang sangat penting untuk membantu siswa mengatasi kesulitan dalam memahami konsep kinematika.  Pengabdian ini melibatkan mitra SMA N 1 Gunung Talang yang berada di Kabupaten Solok, Provinsi Sumatera Barat bertujuan untuk meningkatkan pemahaman siswa tentang Konsep Kinematika di SMAN 1 Gunung Talang. Pengabdian ini dilakukan dalam tiga tahap yaitu persiapan, kegiatan inti yaitu penyampaian materi dan evaluasi proses pengabdian. Hasil menunjukkan terjadi peningkatan pengetahuan tentang materi kinematika berdasarkan pembandingan hasil pre-test dan post test yaitu sebesar 33,3 %.
Analisis Korelasi Umur, Massa Tubuh dan Faktor Eksposi Terhadap Entrance Surface Air Kerma pada Pemeriksaan Thorax di Rumah Sakit Universitas Andalas Suci Indah Sari; Dian Milvita; Ramacos Fardela; Ida Bagus Gede Putra Pratama; Amel Oktavia S
Jurnal Fisika Unand Vol 13 No 5 (2024)
Publisher : Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/jfu.13.5.602-609.2024

Abstract

Research has been conducted on the correlation analysis of age, body mass, and exposure factors to Entrance Surface Air Kerma (ESAK) in the Radiology Installation of Andalas University Hospital. The study was conducted by collecting data on adult thorax examination patients over 15 years of age and body mass (60 ± 10) kg in Posterior-Anterior (PA) and Anterior-Posterior (AP) projections for ± 5 months. Patient data used in PA projections are 107 patient data with the Automatic Exposure Control (AEC) method, 9 patient data with manual methods and 10 AP projection patient data with manual methods. Analysis was conducted using the Pearson correlation test. The results showed that body mass and exposure factors have a very strong relationship with ESAK as indicated by r = 0.805 to 0.990. As body mass and exposure factor increase, the average ESAK received by patients will increase, while age has a weak relationship with ESAK as shown by r = -0,246 to 0,227.
Analisis Korelasi Usia, Massa Tubuh, mAs, dan Dosis Efektif Terhadap CTDIvol dan DLP pada Pemeriksaan CT-Scan Pasien Dewasa Wafi Muthia Dewanti; Dian Milvita; Ramacos Fardela; Ida Bagus Gede Putra Pratama; Sri Herlinda
Jurnal Fisika Unand Vol 13 No 4 (2024)
Publisher : Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/jfu.13.4.579-586.2024

Abstract

A research study has been conducted on the correlation analysis of age, body mass, mAs, and effective dose with Computed Tomography Dose Index Volume (CTDIvol) and Dose Length Product (DLP) in CT-Scan examinations at the Radiology Department of Dr. M. Djamil Padang General Hospital. The research utilized data from adult patients aged 15 years and above with a standard body mass (60 ± 10) kg in non-contrast CT scans of the head, chest, and abdomen, with a total of 586 patients collected over a period of 3 months. The analysis was conducted using Pearson correlation test. The research results indicate that the effective dose has a very high correlation with DLP, with a coefficient of 1 and mAs has a very high correlation with CTDIvol and DLP, with a coefficient of 0,9. Body mass has a relatively high correlation with CTDIvol and DLP, ranging from 0,4 to 0,7 except in head examinations. Age has a moderately significant correlation with CTDIvol and DLP, ranging from 0,1 to 0,5.
Assessment of LINAC Source Radiation Dose around Healthy Organs Using Treatment Planning System Calculation Fardela, Ramacos; Candra, Ega Septryan; Milvita, Dian; Mardiansyah, Dedi; Ridwan, Ridwan; Diyona, Fiqi; Mousa, Almahdi
Journal of Multidisciplinary Applied Natural Science Vol. 5 No. 2 (2025): Journal of Multidisciplinary Applied Natural Science
Publisher : Pandawa Institute

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47352/jmans.2774-3047.253

Abstract

The negative effects of increased radiation dose can impact healthy tissue surrounding the target area, necessitating careful management to minimize side effects and meticulous planning in radiation therapy. This study aims to determine the peripheral dose of a 6 MV photon beam and compare the measured values with the estimates from the Treatment Planning System (TPS). Dose calculations were performed using the Analytical Anisotropic Algorithm (AAA) in the ECLIPSETM TPS on a virtual water phantom with a 6 MV photon beam, delivered by a Clinac CX linear accelerator (LINAC) at Unand Hospital. Photons were used with variations in target depth of 1.5, 5, and 10 cm, as well as variations in measuring distances of 3, 5, 7, 10, and 15 cm outside the irradiation field. The area of irradiation used varied of 5×5 and 10×10 cm2. The measurement results based on the distance of the field edge showed that the dose percentage decreased below 10% when passing a distance of 5 cm for a field area of 5×5 cm2, and for a field area of 10×10 cm2, the dose percentage decreased below 10% after passing a distance of 7 cm from the edge of the irradiation field. The peripheral dose intensity in the area outside the target will decrease along with the increasing measurement distance from the edge of the field and the depth due to the interaction of radiation with the medium, which causes the spread and absorption of photons in the medium.
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.
Analisis Reaktivitas Thorium Molten Salt Reactor 500 Berdasarkan Skenario Penggunaan Control Rod Menggunakan OpenMC Eza Pelita Zebua, Fajri; Handayani Irka, Feriska; Raflis, Helen; Fardela, Ramacos; Fitriyani, Dian
Jurnal Fisika Unand Vol 14 No 2 (2025)
Publisher : Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/jfu.14.2.167-176.2025

Abstract

Neutron calculation simulation with the TMSR-500 conceptual reactor model was carried out for the development of reactivity control in the reactor. The control of reactivity is regulated by the use of a control rod for the shutdown rod and a regulating rod on the reactor. The simulation was carried out using OpenMC computational code and the nuclear data ENDF/B-VII.1. The reactivity value is calculated based on the use scenario of the control rod for each reactor operating condition set with a reactivity margin limit of ≤ 5% dk/k to control reactivity during operation and ≤ 0,5% dk/k during shutdown. The simulation of reactivity control during operation was calculated based on the use scenario of 0% Gd2O3-100% graphite, 25% Gd2O3-75% graphite, 50% Gd2O3-50% graphite, 75% Gd2O3-25% graphite, and 100% Gd2O3-0% graphite. Then, in the shutdown condition, the scenario is set with the use of control rods by Gd2O3 and graphite. The simulation results show that the reactor has an excess reactivity of >5% dk/k. The Control Safety Device (CSD) simulation is able to suppress reactivity ≤ 5% dk/k, but the flux distribution is unevenly distributed. The results of the calculation on the optimization the reactor by the fuel radius with the scenario of using a control rod of 25% graphite-75% Gd2O3 succeeded in controlling the reactivity with a margin of 1,0111±0,00013 (0,108% dk/k). Based on the research, the criticality level of the TMSR 500 is determined by the optimization of the fuel radius and the reactivity can be controlled based on the use scenario of the control rod.
Determination of Typical Values for Pediatric Head CT Scan at Universitas Andalas Hospital Fardela, R.; Delvihardini, R.; Pratama, I. B. G.P.; Milvita, D.; Oktavia, A.
Atom Indonesia Vol 51, No 1 (2025): APRIL 2025
Publisher : National Research and Innovation Agency

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55981/aij.2025.1517

Abstract

The utilization of X-rays in the Computed Tomography Scaner (CT scan) modality has proliferated for diagnostic purposes. CT scans deliver higher doses than other modalities, consequently protecting patients from excessive radiation doses is necessary by increasing optimization efforts in patients, especially pediatric patients. This research aims to determine the typical value and analyze the correlation of age, body mass, and exposure factor (mAs) to Computed Tomography Dose Index Volume (CTDIVol) and Dose Length Product (DLP). The typical dose value was obtained from the median value (Q2) using data derived from pediatric patients undergoing a head CT scan with a total of 33 patients at Universitas Andalas Hospital, with a correlation determined using a linearity test. The results obtained were the typical value for CTDIVol of 31.1 mGy and DLP of 793.3 mGy.cm. There is a moderate correlation between age and CTDIVol and DLP values, a high correlation between body mass and CTDIVol and DLP values, and a very high correlation between the exposure factor (mAs) and CTDIVol and DLP values.
Co-Authors A. Fadhil Desafa Adinda Putri Adrial, Rico Afdal Afdal Afdal Afdal, Afdal Afdhal Muttaqin Ahmad Fauzi Pohan Aisyah Elliyanti Al Hafidz Abdu Aziz Alimin Mahyudin Almahdi Mousa Almuhayar, Mawanda Amel Oktavia S Analia, Rika Andriani, Innes Andriati, Susi Annisa, Hafizha Fitri Arif Budiman Arif Budiman Arif Rizki Marsa Armysa, Rindina Astuti Astuti Astuti - Astuti Astuti Atika Maulida Atika Maulida Budiarni, Rini Candra, Ega Septryan Dahlianum, Dahlianum Dahyunir Dahlan Damayanti, Elok Dedi Mardiansyah Delvihardini, R. Delvihardini, Rani Dewanti, Wafi Muthia Dian Fitriyani Dian Fitriyani Dian Milvita Dina Arfiani Rusjdi Dio Dio Dio Marta Dinata Dwi Pujiastuti Dwi Pujiastuti Dwi Puryanti Eka Putra Sutantyo, Tringginas Elistia Liza Namigo, Elistia Elvaswer Elvaswer Elvaswer Eza Pelita Zebua, Fajri Fatma Ira Wahyuni Feriska Handayani Feriska Handayani Irka, Feriska Handayani Fiqi Diyona Fiqi Diyona Fiqi Diyona Fiqi Diyona Fiqi Diyona Fiqi Diyona, Fiqi Hafsah Amraty Haldis Alvaro Handayani Irka, Feriska Hanifah Asnur Harmadi Harmadi Herviya, Herviya Herviyana, Herviyana hilda fenia Ida Bagus Gede Putra Pratama Ida Bagus Gede Putra Pratama Ida Bagus Gede Putra Pratama Imam Taufik Imam Taufiq Imam Taufiq Innes Andriani Isdi, Muhammad Ridho Kusminarto Kusminarto Latifah Aulia Rasyada Lilik Suhery, Lilik M. Ali Shafii Marzuki Marzuki Masdar, Astuti Maulida, Atika Mawanda Almuhayar Meqorry Yusfi Milvita, D. Mohammad Ali Shafii Mora Mora Mora Mora Mora Mousa, Almahdi MS Firman Maulana Muldarisnur, Mulda Musra, Faizah Mutya Vonnisa Nini Firmawati Noviardi Noviarti Noviarti Nuri Aslami Nurwijayanti Oktavia, A. Oktavia, Amel Olly Norita Tetra Pratama, I. B. G.P. Pratama, Ida Bagus Gede Putra Putri, Adinda Mahesa Raden Mohamad Herdian Bhakti Raflis, Helen Rahmad Rasyid Rahmad Rasyid Rahmat Rasyid Rani Delvihardini Rani Delvihardini Ranti Irsa Rapitri, Juli Fardilla Diana Rasyada, Latifah Aulia Ria Ambarwati Ridwan, Ridwan Rifwandi, Rial Rika Analia Rika Analia Rika Analia Rini Yunita S, Amel Oktavia Sari, Suci Indah Selly, Jannes Bastian Solly Aryza Sri Handani Sri Herlinda Sri Herlinda, Sri Sri Oktamuliani Sri Purwaningsih Sri Tria Siska Suci Indah Sari Suci Ramda Rena Suci Ramda Rena Sutria Desman Syamsuir, Elvi Trengginas Eka Putra Trengginas Eka Putra Sutantyo Umar Khatab Usna, Sri Rahayu Alfitri Veithzal Rivai Zainal Wafi Muthia Dewanti Wahyuni, Ade Wiguna, Gede Arya Wildian Wildian Yoga Apriananda Ziarah, Hikmah Zozy Aneloi Noli Zulfi Zulfi Zulfi Zulfi Zulfi Zulfi Zulfi