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All Journal POSITRON SELAPARANG: Jurnal Pengabdian Masyarakat Berkemajuan Jurnal Ilmu Fisika Specta Journal of Technology
Rahastama, Swastya
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Journal : Specta Journal of Technology

 1 
Identifikasi Potensi Radioaktivitas pada Pisang Ambon (Musa Paradisiaca) dan Kulit Pisang Kepok (Musa Acuminata Balbisiana) Untuk Aplikasi Baterai Nuklir rahastama, swastya; Hidayat, Jefri Pandu; Mahera, Adinda Kholif; Amelia, Rani Marizah; Salsabila, Syifa
SPECTA Journal of Technology Vol. 8 No. 2 (2024): SPECTA Journal of Technology
Publisher : LPPM ITK

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35718/specta.v8i2.1045

Abstract

Banana peel has a high potassium content, including the presence of the radioactive element K-40. As one of the beta emitters, K-40 has the potential to be a natural radioactive material for use as a betavoltaic nuclear battery source. In this study, the levels of K-40 content and radioactivity of kepok banana peel (Musa Acuminata Balbisiana) and ambon banana peel (Musa Paradisiaca), local varieties from the Balikpapan region, will be examined. Banana peel samples are first dried to reduce the water content and then processed into dry powder by heating for 20 hours. The mass and water content before and after the drying process are tested to observe shrinkage and its effects on the level of radioactivity. XRF testing is conducted to determine the potential potassium content of each sample. Radioactivity levels are measured using a Geiger Counter survey meter with sensitivity in the energy range of 50 KeV - 1.5 MeV. From the drying results, a greater decrease in mass is observed in kepok banana peel compared to ambon banana peel, accompanied by a significant reduction in water content. XRF test results indicate that the drying temperature has an effect on the emitted X-ray intensity. The activity content in kepok banana peel samples is found to be higher than in ambon banana peel. An estimated quantity of kepok and ambon banana peels needed to achieve the required 1 mCi activity for the nuclear battery is approximately 1.1 tons and 1.3 tons, respectively.
Piezoelectric Trasducer Based Micro Energy Generator Design for Application in Ceramics Mayantasari, Menasita; Al-Zairi, Achmad; Rahastama, Swastya
SPECTA Journal of Technology Vol. 7 No. 1 (2023): SPECTA Journal of Technology
Publisher : LPPM ITK

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (290.324 KB) | DOI: 10.35718/specta.v7i1.867

Abstract

The rapid development of technology causes humans to provide a large amount of energy, especially electrical energy. One of the new renewable energy sources that is still under development is a piezoelectric-based energy harvester. Piezoelectric itself is a material that has an electric polarizing effect that occurs in certain materials when the material is given a mechanical stress. The potential difference measured across the piezoelectric material is proportional to the applied pressure. This study aims to examine the prototype of a piezoelectric-based micro energy generator using different loadings on ceramics. This research was carried out by making a prototype on a 30x30 cm2 ceramic, and using a piezoelectric in the form of a PZT type. The method used in this research is measuring the voltage of each configuration variation in the piezoelectric circuit. Retrieval of stress data was done by dropping a load of 3 kg, 6 kg and 9 kg for each variation to be tested. The distance between the piezoelectric position and the center of mass affected the resulting voltage, each additional load would cause an increase in voltage, and a series circuit produces a greater voltage than a parallel circuit
Co-Authors Abdul Waris Al-Zairi, Achmad Amelia, Rani Marizah Budi Prayitno Fajar, Muhammad Rizal Firdaus, Rohim Aminullah Jefri Pandu Hidayat Mahera, Adinda Kholif Mayantasari, Menasita Musyarofah Musyarofah Nurhayati Nurhayati Puspitasari, Nurrisma Salsabila, Syifa Saputra, Yohannes Dwi shoodiqin, dian mart Yohanes Dwi Saputra, Yohanes Dwi