A5059907883- Radioactivity and Radon Measurements
- Radioactive contamination and transfer
- Nuclear and radioactivity studies
- Radiation Shielding Materials Analysis
- Geochemistry and Elemental Analysis
- Metal-Organic Frameworks: Synthesis and Applications
- Radioactive element chemistry and processing
- Earthquake Detection and Analysis
- Extraction and Separation Processes
- Chromium effects and bioremediation
- Geological and Geophysical Studies
- Paleontology and Stratigraphy of Fossils
- Nanomaterials for catalytic reactions
- Machine Learning in Materials Science
- Thermal and Kinetic Analysis
- Catalysis and Hydrodesulfurization Studies
National Nuclear Energy Agency of Indonesia
2020-2025
National Research and Innovation Agency
2023-2024
Kyushu University
2021-2022
Sebelas Maret University
2016-2017
Creating a safe living environment involves using healthy and sustainable building materials. Humans are exposed to natural radionuclides, such as 226Ra, 232Th, 40K decay series, found in materials that pose radiological hazard. This study is aimed investigate the radionuclides content of used Jakarta its surrounding areas. The computer code RESRAD-BUILD was calculate annual effective dose received by an adult typical room constructed with studied Samples sand, cement, bricks, Autoclaved...
Electrosynthesis of metal-organic frameworks based on nickel(II) and benzen 1,3,5-tricarboxylic acid (H3BTC) to form [Ni3(BTC)2] has been conducted. This study aims determine the optimum electro-synthetic conditions by varying solvents, electrolytes, as well voltages. The condition was determined percent yield product which upon washing drying at room temperature showed pale green precipitate. materialhas high crystallinityaccording XRD analysis with main peak observed 2θ 19° 28° appropriate...
In the effort to support discovery of new renewable energy sources in Indonesia, biofuel is one promising options. The conversion vegetable oil into ready-biofuel, especially green diesel, needs several steps, which a hydrogenation or hydro-deoxygenation reaction. this case, catalyst plays very important role regarding its activity and selectivity, Metal-Organic Frameworks (MOFs) becoming generation heterogeneous area. research, preliminary study optimize electrochemical synthesis catalytic...
Radon (222Rn) and thoron (220Rn) were reported as the highest contributors to natural radiation received by humans. Furthermore, radon has been stated second-highest cause of lung cancer. The concentrations 238U 232Th (the parent nuclide thoron, respectively) in nature vary with geological conditions can be enhanced human activities. Bangka Island Indonesia is one such case tin mining, where environment contains a high amount due island's granite bedrock. This study assesses public's...
Abstract Indoor radon concentration in Madura Island region, East Java Province, has been mapped and determined. The obtained data is useful for health policies of Indonesia can be used as internationally baseline through UNSCEAR, IAEA, WHO. mapping process done using a grid system 20 km x km, where on each there are 5-10 passive detectors CR-39 installed the houses 3 to 4 months. After exposure time, detector etched 6,25 N NaOH solution at 70 °C oven 7 hours grow traces alpha particles from...
Abstract Bangka Island with a history of more than 200 years tin mining, has brought along the byproduct heavy minerals which contain radionuclide elements. There are some concerns about this material contributing to natural radiation in environment. In study, car-borne survey was conducted, give an accurate assessment background Island. The measurement indoor and outdoor ambient dose rates 146 houses also conducted for from external exposure received by public. soil samples were collected...
Radon concentration analysis in the residential houses on Ambon and Seram Island - Maluku through passive method using CR-39 nuclear track detector has been studied. The was installed inside for 3 months. After finishing exposure, taken etched 6.25 N NaOH solution. of radon read by a microscope with 400 times magnification. From results reading track, determination calculated. showed that concentrations Islands, at low level were range 2.56 ± 0.18 Bq/m3 to 59.65 4.22Bq/m3 an average value...
Abstract River water is very beneficial for households and industries. functions are include drinking, washing, bathing, transportation tourism. the industry electrical energy sources, irrigation, aquaculture, of industrial products others. Therefore, characteristics Musi in Palembang, Kapuas Pontianak, Kahayan Palangkaraya, need to be researched, especially natural radionuclide content. Water taken 1 liter each with a plastic container at several sampling locations every 3 km along river,...
Biogenic manganese (Mn) oxides occur ubiquitously in the environment including uranium (U) mill tailings at Ningyo-toge U mine Okayama, Japan, being important sequestration of radioactive radium. To understand nanoscale processes Mn formation site, Mn2+ absorption by a basidiomycete fungus, Coprinopsis urticicola, isolated from water samples, was investigated laboratory under controlled conditions utilizing electron microscopy, synchrotron-based X-ray analysis, and fluorescence microscopy...