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This research was supervised by Promoter Dr. Budhy Kurniawan R., M.Si. from the Department of Physics, FMIPA UI, and Co-promoter Dr. Nunung Nuraeni, M.Si. from the Center for Research in Safety Technology, Metrology and Nuclear Quality, Nuclear Energy Research Organization, National Research and Innovation Agency.<\/p>\n\n\n\n
In his presentation, Dr. Okky explained that the use of real fruit in irradiation testing is often constrained by seasonal availability as well as difficulties in obtaining consistent measurement results. To address this, he developed a \u201csynthetic mango\u201d based on 3D printing technology that mimics the physical and radiological characteristics of a real mango.<\/p>\n\n\n\n
\u201cThis 3D-printed mango phantom was developed to address the limitations of using real fruit in radiation dose measurements,\u201d said Dr. Okky.<\/p>\n\n\n\n
He added that this method enables testing to be conducted more stably and reproducibly, with consistent results without depending on harvest seasons.<\/p>\n\n\n\n
The research results show that dose measurements on real mangoes and the phantom exhibit very good agreement, with a relative deviation of less than \u00b12 percent and an En number below one, indicating that the method is valid in terms of dosimetry and metrology.<\/p>\n\n\n\n
The developed phantom has characteristics close to those of a real mango, including a mass density of 1.2 g\/cm\u00b3, an effective atomic number (Z<\/em>eff<\/sub>) 7.5, and a relative electron density of 0.984. In addition to experiments, this study also utilized Monte Carlo simulations to map the radiation dose distribution within the fruit computationally.<\/p>\n\n\n\n <\/p>\n\n\n\n The research promoter, Dr. Budhy Kurniawan R., M.Si., described this approach as an important breakthrough in the development of more precise and reliable dose measurement systems.<\/p>\n\n\n\n \u201cThe use of a phantom validated through both experiments and simulations opens up great opportunities to improve quality control in irradiation facilities,\u201d he said.<\/p>\n\n\n\n In the session, Dr. Okky Agassy Firmansyah officially earned his doctoral degree from FMIPA UI with summa cum laude distinction. He achieved a perfect GPA of 4.00 and completed his studies in a relatively short period of 2.5 years. In addition, during his studies, Dr. Okky produced three publications in reputable international journals as part of his scientific contributions in the field of physics and irradiation technology.<\/p>\n\n\n\n This research is expected to serve as an applicable solution in the food irradiation industry, both in improving testing efficiency, reducing dependence on fresh fruit, and supporting stricter safety standards for export products.<\/p>\n\n\n\n <\/p>","protected":false},"excerpt":{"rendered":" Depok, 15 April 2026 \u2014 Di tengah meningkatnya kebutuhan ekspor buah tropis ke pasar global, jaminan keamanan dan kualitas produk menjadi aspek krusial. Salah satu metode yang diakui secara internasional untuk memastikan buah bebas dari organisme pengganggu tumbuhan adalah metode fitosanitari iradiasi. Namun, efektivitas metode ini sangat bergantung pada pengukuran dosis radiasi yang akurat. Menjawab […]<\/p>\n","protected":false},"author":12,"featured_media":14751,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-14750","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-berita"],"blocksy_meta":[],"yoast_head":"\n![\"\"](\"https:\/\/sci-ui.id\/wp-content\/uploads\/2026\/04\/sci-559.jpg\")
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