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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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Radiation Dose Evaluation for Radiotherapy Workers at Unand Hospital Using Four-Element Thermoluminescence Dosimetry Fardela, Ramacos; Milvita, Dian; Rasyada, Latifah Aulia; Almuhayar, Mawanda; Diyona, Fiqi; Mousa, Almahdi
Jurnal Ilmiah Pendidikan Fisika Al-Biruni Vol 12 No 2 (2023): Jurnal Ilmiah Pendidikan Fisika Al-Biruni
Publisher : Universitas Islam Negeri Raden Intan Lampung, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24042/jipfalbiruni.v12i2.18101

Abstract

Radiotherapy is a non-surgery therapy that employs ionizing radiation like X-ray or even radiation to cure cancer as a curative activity. Radiation dose rate analysis is required for the person who worked on radiotherapy to strengthen safety precautions for radiation protection, notably in oncology radiation. The research attempted to disclose time trends and radiation dose rate exposure variations among personnel in radiotherapy installation. Radiation dose examination utilizing four-elements TLD received from 16 respondents grouped into six groups (radiation oncologist, medical physicist, radiotherapist, electromedicine, nurse, and sculptor). The number of occupancy exposures rose 55.5% from 2018 to 2022. The most significant annual radiation dose rate for 900 patient workloads attained by medical physicists was 0.996 mSv. In addition, electronics receive the lowest annual radiation dose at Unand Hospital. Annual effective dose exposure by radiation is still safe, below national or international regulations. However, a protective improvement process is vital to limit radiation interaction, particularly for medical physicists, who are the most vulnerable to radiation exposure.
Automated Breast Cancer Lesion Segmentation and Diameter Detection in Mammogram Images Using Active Contour Lankton with MATLAB GUI Maulida, Atika; Fardela, Ramacos; Rusjdi, Dina Arfiani
Jurnal Ilmiah Pendidikan Fisika Al-Biruni Vol 14 No 1 (2025): Jurnal Ilmiah Pendidikan Fisika Al-Biruni
Publisher : Universitas Islam Negeri Raden Intan Lampung, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24042/jipfalbiruni.v14i1.23907

Abstract

Breast cancer is the most commonly diagnosed cancer among women worldwide and remains one of the leading causes of cancer-related deaths, accounting for approximately 10 million deaths in 2020. Diagnosis is generally performed through routine examinations or when symptoms appear; however, physical examination alone is often insufficient. Image segmentation techniques are increasingly utilized to enhance diagnostic accuracy. This study aims to develop a MATLAB-based program using the Graphical User Interface (GUI) and the Active Contour Lankton method to perform segmentation on mammogram images for breast cancer detection. The process involves several stages: acquiring the original mammogram image, enhancing the image using intensity adjustment, applying the Active Contour Lankton segmentation technique, and measuring the diameter of suspected cancerous regions in 15 sample images. The results show that the program was able to identify breast cancer in several cases with good sensitivity and also demonstrated potential in reducing false-positive findings in images from patients confirmed to be cancer-free. Nevertheless, several false-positive errors were still observed, indicating that the segmentation accuracy requires further improvement. This study advances computer-aided diagnostic tools by integrating the Active Contour Lankton method into a user-friendly MATLAB GUI framework. The proposed approach offers a practical and accessible solution for supporting early breast cancer detection and minimizing diagnostic errors in clinical practice.
Dosimetric Analysis of 6 MV Energy Photon Radiation Beam on Flatness and Symmetry on Linac in Radiotherapy Installation of UNAND Hospital Analia, Rika; Fardela, Ramacos; Ridwan, Ridwan; Diyona, Fiqi; Muttaqin, Afdhal
Jurnal Ilmiah Pendidikan Fisika Al-Biruni Vol 13 No 2 (2024): Jurnal Ilmiah Pendidikan Fisika Al-Biruni
Publisher : Universitas Islam Negeri Raden Intan Lampung, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24042/jipfalbiruni.v13i2.24016

Abstract

A dosimetric analysis of a 6 MV photon energy radiation beam on flatness and symmetry in LINAC radiotherapy at UNAND Hospital has been conducted. The aim was to measure the quality of the photon beam using an ion chamber cc 13 detector by observing the beam profile and analyzing the effect of field size and irradiation depth. This study used a blue phantom as the object of irradiation with 6 MV photon energy and variations in irradiation field size.  The results showed that the PDD curve at 6 MV energy was by the international standard recommended by BJR-25. Then, the average values of flatness and symmetry in the field area of 10×10 cm2 and 15×15 cm2 are 1.6% and 2.4% for flatness and 2.3% and 1.9% for symmetry. Thus, the dose distribution is more uniform, and both the left and right sides of the profile on the center axis appear balanced, which will help deliver the dose to the patient better. Thus, these values are suitable for clinical use. This study found that the beam profile was larger on the left side of the main axis. This must be considered to ensure the dose distribution complies with the established safety standards. The results also show that variations in the field area and irradiation depth can affect the beam profile, and the resulting flatness and symmetry values are in accordance with the IAEA TRUS-381 and AAPM TG-142 recommendation standards, which are ±2% flatness and ±3% symmetry.
Pengabdian Masyarakat dengan Meningkatkan Minat Siswa Kelas X SMA N 2 Gunung Talang Terhadap Pelajaran Fisika Mardiansyah, Dedi; Eka Putra Sutantyo, Tringginas; Fardela, Ramacos; Puryanti, Dwi; Irka, Feriska Handayani; Muttaqin, Afdhal; Isdi, Muhammad Ridho; Herviyana, Herviyana; Dahlianum, Dahlianum; Musra, Faizah
Jurnal Pengabdian kepada Masyarakat Nusantara Vol. 4 No. 4 (2023): Jurnal Pengabdian kepada Masyarakat Nusantara (JPkMN)
Publisher : Lembaga Dongan Dosen

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Kegiatan pengabdian masyarakat dilakukan oleh Tim Pengabdian kepada Masyarakat dari Departemen Fisika Universitas Andalas di SMA N 2 Gunung Talang, Kabupaten Solok, Sumatera Barat. Kegiatan ini bertujuan untuk meningkatkan minat siswa terhadap Pelajaran fisika yang sering dianggap rumit. Kegiatan ini terdiri dari penyempaian materi dan demonstrasi Praktikum Fisika kepada siswa-siswi kelas X. Siswa-siswi diajak untuk menggali ilmu fisika dalam kehidupan sehari-hari dan terlibat langsung dalam demonstrasi percobaan yang dilakukan. Mereka mendapatkan pengalaman baru yang menyenangkan dalam pembelajaran ilmu fisika yang dianggap sebagain siswa sulit. Evaluasi dilakukan diakhir kegiatan dengan hasil mengingkatnya minat siswa kelas X terhadap Pelajaran Fisika.
Penumbuhan Minat Siswa Terhadap Fisika dengan Metode Demonstrasi Teknologi di SMA N 1 Gunung Talang Fardela, Ramacos; Delvihardini, Rani; Mardiansyah, Dedi; Sutantyo, Trengginas Eka Putra; Puryanti, Dwi; Irka, Feriska Handayani; Muttaqin, Afdhal; Isdi, Muhammad Ridho; Herviya, Herviya; Dahlianum, Dahlianum; Musra, Faizah
Jurnal Pengabdian kepada Masyarakat Nusantara Vol. 5 No. 1 (2024): Jurnal Pengabdian kepada Masyarakat Nusantara (JPkMN)
Publisher : Lembaga Dongan Dosen

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Kegiatan pengabdian kepada masyarakat dilakukan oleh tim pengabdian Departemen Fisika Universitas Andalas yang dilaksanakan di SMA N 1 Gunung Talang. Kegiatan ini bertujuan untuk menumbuhkan minat siswa terhadap fisika dengan menggunakan metode demonstrasi teknologi. Tidak sedikit dari siswa tingkat SMA yang menyatakan bahwa pelajaran fisika rumit dan membosankan. Oleh karena itu, dibutuhkan suatu metode yang dapat meningkatkan kualitas belajar siswa agar siswa dapat menyukai pelajaran fisika. Maka dari itu, dilakukannya kegiatan pengabdian ini yang terdiri dari penyampaian materi mengenai ilmu fisika, memberikan motivasi dan demonstrasi praktikum fisika instrumentasi kepada para siswa SMA N 1 Gunung Talang. Melalui kegiatan pengabdian ini, para siswa dapat memahami konsep dan menerapkan ilmu fisika secara langsung dengan memperagakan praktikum fisika serta dapat memberikan pengalaman baru yang menyenangkan mengenai pembelajaran ilmu fisika. Evaluasi kegiatan dilakukan setelah penyampaian materi dan demonstrasi praktikum fisika, didapatkan bahwa para siswa memahami ilmu fisika sebagai ilmu dasar untuk kemajuan teknologi dan semakin meningkat rasa minat para siswa dalam pelajaran fisika serta menganggap fisika menyenangkan.
Analisis Korelasi Umur, Massa Tubuh dan Faktor Eksposi Terhadap Entrance Surface Air Kerma pada Pemeriksaan Thorax di Rumah Sakit Universitas Andalas Sari, Suci Indah; Milvita, Dian; Fardela, Ramacos; Pratama, Ida Bagus Gede Putra; S, Amel Oktavia
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 Dewanti, Wafi Muthia; Milvita, Dian; Fardela, Ramacos; Pratama, Ida Bagus Gede Putra; Herlinda, Sri
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.
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 %.
Determination of Radiation Dose Rate in Radiology Installations Using Raysafe X2 Surveymeter Andriati, Susi; Irka, Feriska Handayani; Firmawati, Nini; Wahyuni, Ade; Fardela, Ramacos
Jurnal Pendidikan Fisika dan Teknologi (JPFT) Vol 10 No 2 (2024): July - December
Publisher : Department of Physics Education, Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jpft.v10i2.7841

Abstract

Based on the study of radiation dose rates in the Radiology Installation of Pariaman Regional Hospital using a Raysafe surveymeter, it can be reported that the radiation dose rate in the CT-Scan room is measured at (0.30-1.27) μSv/hour. In the conventional X-ray room, the radiation dose rate is found to be between (0.2-0.5) μSv/hour, while in the mammography room, the dose rate ranges from (0.00-0.40) μSv/hour. These findings indicate that the highest radiation exposure occurs in the CT-Scan room, which aligns with the higher complexity and intensity of the imaging procedures performed there. The relatively low dose rates in the conventional X-ray and mammography rooms suggest effective radiation shielding and adherence to safety protocols. Continuous monitoring of radiation levels is essential to ensure they remain within safe limits for both patients and medical staff. Furthermore, this data can be instrumental in optimizing exposure parameters, helping to minimize unnecessary radiation exposure while maintaining diagnostic quality. Implementing regular training for staff on radiation safety practices is also critical, as it enhances awareness and adherence to established protocols. Overall, these measures contribute to a safer radiology environment for all involved.
The Analysis of the Physical Quantity N Grid, v, and dt in Solving the Schrödinger Equation Using the Crank-Nicolson Method Purwaningsih, Sri; Fardela, Ramacos
Jurnal Penelitian Fisika dan Aplikasinya (JPFA) Vol. 12 No. 1 (2022)
Publisher : Universitas Negeri Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26740/jpfa.v12n1.p1-13

Abstract

Solving the Schrödinger equation may result in a wave function of a particle in a quantum system, which can afford the information with respect to the particle’s behavior. The Schrödinger equation is useful for examining probability density and determining a wave function of free particles. This research focuses on solving the Schrödinger equation using the Crank-Nicolson method in free particles. The Crank-Nicolson method is a method of solving partial differential equations in the form of the Schrodinger equation, this method is very stable and accurate in giving numerical results. The result indicates that probability density and the form of the wave function of free particles are identified by varying the v, N grid, and dt. When dt = 1, v = 1, and v = 2, and the N grid remains at a score of 100, we acquire the same forms of the wave function and probability density. And yet, when dt = 2, v =2, and the N grid remains at a score of 100, the form of the wave function and probability density is constricted in one area. The N grid and dt are the two most affecting factors on the three variants. Using the Crank-Nicolson method, we can determine the wave function and probability for free particles by varying the value of N grid, dt.
Co-Authors A. Fadhil Desafa Ade Wahyuni Adinda Putri Adrial, Rico Afdal Afdal Afdal Afdal, Afdal Afdhal Muttaqin Ahmad Fauzi Pohan Aisyah Elliyanti Al Hafidz Abdu Aziz Alimin Mahyudin Almahdi Mousa Almahdi Mousa Almuhayar, Mawanda Amel Oktavia S Analia, Rika Andriani, Innes Andriati, Susi Annisa, Hafizha Fitri Arif Budiman Arif Budiman Arif Budiman Arif Rizki Marsa Armysa, Rindina Astuti Astuti Astuti - Astuti Astuti astuti masdar, 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 Irsa, Ranti Isdi, Muhammad Ridho Kusminarto Kusminarto Latifah Aulia Rasyada Lilik Suhery, Lilik M. Ali Shafii M. Yogi Riyantama Isjoni Marzuki Marzuki 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 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 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 Susi Andriati Sutria Desman Syamsuir, Elvi Trengginas Eka Putra Trengginas Eka Putra Sutantyo Umar Khatab Usna, Sri Rahayu Alfitri Wafi Muthia Dewanti Wahyuni, Ade Wahyuni, Fatma Ira Wiguna, Gede Arya Wildian Wildian Yoga Apriananda Ziarah, Hikmah Zozy Aneloi Noli Zulfi Zulfi Zulfi Zulfi Zulfi Zulfi Zulfi