Deteksi Ionisasi Udara Akibat Radioaktivitas Americium-241 (Am-241) Melalui Parameter Kelistrikan


  • Tedi Sumardi Universitas Mandiri
  • Siti Nurasiah Universitas Mandiri


Radioactivity is the decay of radioactive substances due to the interaction between radioactive subtances and atoms or molecules in the air to form air ionization. In this study, air ionization detection was carried out by observing its changes in voltage, current, and distance from the radiation source that generated by Am-241 on vertical and horizontal positions. The experiment was repeated by 3 times at each position of Am-241 depends to electrodes. The results showed a change in the voltage due to the presence of Am-241 in different positions. This related with the strength of electric current and the distance of Am-241 positions, where the farther position of Am-241 has the stronger electric current. Thus, the alteration of electric current and voltage proved that radiation has been emitted by Am-241.


Kerst, T., Malmbeck, R., lal Banik, N. L., & Toivonen, J. (2019). Alpha radiation-induced luminescence by am-241 in aqueous nitric acid solution. Sensors (Switzerland), 19(7), 1–12.

Krane, K. (2014). Fisika modern. Jakarta: UI Press.

Liu, B., Liu, K., Ralchenko, V., Dzmitrovich, D., Yang, L., Yang, Y., … Dai, B. (2019). Effect of americium-241 source activity on total conversion efficiency of diamond alpha-voltaic battery. International Journal of Energy Research, 43(11), 6038–6044.

Navratil, J. D., Schulz, W. W., & Seaborg, G. T. (1990). The most useful actinide isotope: Americium-241. Journal of Chemical Education, 67(1), 15–16.

Nurdin, W. B. (2014). Fisika nuklir untuk kesehatan. Bogor: Penerbit IPB Press.

Sani, R. A. (2016). Demonstrasi dan eksperimen fisika. Jakarta: PT Bumi Aksara Group.

Terada, K., Nakamura, S., Nakao, T., Kimura, A., Iwamoto, O., Harada, H., … Hori, J. I. (2016). Measurements of gamma-ray emission probabilities of 241, 243Am and 239Np. Journal of Nuclear Science and Technology, 53(11), 1881–1888.




How to Cite

Sumardi, T., & Siti Nurasiah. (2022). Deteksi Ionisasi Udara Akibat Radioaktivitas Americium-241 (Am-241) Melalui Parameter Kelistrikan . BULLET : Jurnal Multidisiplin Ilmu, 1(03), 498–502. Retrieved from