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Determination of Radiation Dose Rate in Radiology Installations Using Raysafe X2 Surveymeter Susi Andriati; Feriska Handayani Irka; Nini Firmawati; Ade Wahyuni; Ramacos Fardela
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.
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.
PEMBERDAYAAN EKONOMI RAMAH LINGKUNGAN MELALUI PENGOLAHAN LIMBAH KELAPA: MENUJU NAGARI SUNUA BARAT YANG ECOGREEN Muttaqin, Afdhal; Meqorry Yusfi; Arif Budiman; Dwi Pujiastuti; Sri Handani; Dahyunir Dahlan; Imam Taufiq; M. Ali Shafii; Dwi Puryanti; Zulfi; Elvaswer; Feriska Handayani; Rico Adrial; Trengginas Eka Putra; Ahmad Fauzi Pohan; Dedi Mardiansyah; Ramacos Fardela; Alimin Mahyudin; Nini Firmawati; Astuti; Dian Fitriyani; Della Amelia; Haldis Alvaro; Fiqi Diyona; A. Fadhil Desafa; Zozy Aneloi Noli; Olly Norita Tetra
BERNAS: Jurnal Pengabdian Kepada Masyarakat Vol. 6 No. 3 (2025)
Publisher : Universitas Majalengka

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31949/jb.v6i3.12869

Abstract

Nagari Sunua Barat memiliki potensi limbah sabut kelapa hasil perkebunan kelapa yang melimpah. Kegiatan pengabdian ini bertujuan untuk memberdayakan kelompok tani di Nagari Sunua Barat melalui pelatihan pengolahan limbah sabut kelapa menjadi cocopeat dan cocofiber, yang lebih memiliki nilai ekonomis dan ramah lingkungan. Kegiatan pengabdian kepada masyarakat dilakukan oleh tim dari Fakultas Matematika dan Ilmu Pengetahuan Alam, dimulai dengan tahap perencanaan yang melibatkan mitra kelompok tani untuk mengidentifikasi kebutuhan dan potensi yang ada pada mitra. Kegiatan ini diikuti oleh 47 peserta yang berasal dari kelompok tani dan masyarakat yang ada di Nagari Sunua Barat. Peserta diajarkan tentang pengelolaan sampah limbah sabut kelapa, yang dimanfaatkan menjadi cocopeat dan cocofiber. Metode yang digunakan meliputi demonstrasi, praktik langsung, dan diskusi interaktif. Hasil dari kegiatan menunjukkan antusiasme yang tinggi dari peserta. Sebagian besar mampu memahami dan mempraktikkan teknik yang diajarkan, dengan beberapa peserta mulai memproduksi cocopeat dan cocofiber untuk keperluan pribadi maupun komersial. Pelatihan ini berhasil meningkatkan kesadaran masyarakat akan pentingnya pengelolaan limbah yang berkelanjutan serta memberikan peluang ekonomi baru bagi kelompok tani. Kegiatan ini diharapkan dapat menjadi langkah awal untuk menjadikan Nagari Sunua Barat sebagai sentra pengolahan limbah sabut kelapa, sekaligus mendorong terciptanya masyarakat yang lebih peduli lingkungan dan mandiri secara ekonomi
The Effect of Age and Body Mass on CTDIvol and DLP Values in CT Scan Patients at Andalas University Hospital Delvihardini, Rani; Pratama, Ida Bagus Gede Putra; Milvita, Dian; Oktavia, Amel; Fardela, Ramacos
Jurnal Pendidikan Fisika dan Teknologi (JPFT) Vol 11 No 1 (2025): January-June
Publisher : Department of Physics Education, Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jpft.v11i1.8435

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Meningkatnya penggunaan sinar-X di bidang medis disertai dengan kemajuan teknologi yang pesat dan telah berdampak signifikan pada radiologi terapeutik dan diagnostik. Di bidang radiologi diagnostik, modalitas dengan teknologi canggih yang memanfaatkan sinar-X adalah Computed Tomography Scanner (CT Scan). Dosis radiasi CT scan diketahui lebih besar dibandingkan dengan modalitas lain, membuat perlindungan pasien dari paparan berlebihan menjadi prioritas kritis. Oleh karena itu, penelitian ini bertujuan untuk mengetahui pengaruh usia dan massa tubuh terhadap nilai Computed Tomography Dose Index (CTDIVol) dan Dose Length Product (DLP) pada pasien CT Scan di Instalasi Radiologi RS Universitas Andalas, untuk memberikan dosis radiasi yang tepat dan tepat untuk keperluan diagnostik. Prosesnya termasuk mengumpulkan data dosis radiasi pada pasien yang mengalami CT Scan kepala dan perut non-kontras. Hasil penelitian menunjukkan bahwa usia memiliki korelasi yang sangat lemah dengan nilai CTDIVol dan DLP, sedangkan massa tubuh memiliki korelasi yang cukup rendah, kecuali untuk CT Scan perut non-kontras. Penelitian ini menunjukkan bahwa massa tubuh pasien tidak berpengaruh signifikan terhadap pemeriksaan CT scan di RS Universitas Andalas. Dianjurkan untuk mengoptimalkan dosis radiasi dengan mempertimbangkan massa tubuh dan menggunakan Automatic Exposure Control (AEC).
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.
Co-Authors A. Fadhil Desafa Ade Wahyuni Adinda Putri Adrial, Rico Afdal Afdal Afdal Afdal, Afdal Afdhal Muttaqin Ahmad Fauzi Pohan Al Hafidz Abdu Aziz Alimin Mahyudin Almahdi Mousa Almuhayar, Mawanda Amel Oktavia S Analia, Rika Andriani, Innes Andriati, Susi Arif Budiman Arif Budiman Arif Rizki Marsa Astuti Astuti Astuti - Astuti Astuti Atika Maulida Atika Maulida Budiarni, Rini Candra, Ega Septryan Dahlianum, Dahlianum Dahyunir Dahlan Damayanti, Elok Dedi Mardiansyah Della Amelia 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 Hafizha Fitri Annisa 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 Juli Fardilla Diana Rapitri 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 Oktavia, A. Oktavia, Amel Olly Norita Tetra Pratama, I. B. G.P. Pratama, Ida Bagus Gede Putra Putri, Adinda Mahesa Raflis, Helen Rahmad Rasyid Rahmad Rasyid Rahmat Rasyid Rani Delvihardini Rani Delvihardini Ranti Irsa Rasyada, Latifah Aulia Ria Ambarwati Rial Rifwandi Ridwan, Ridwan Rika Analia Rika Analia Rika Analia Rindina Armysa 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 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 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