[en] The purpose of this investigation was to estimate the age of reef coral that determined by carbon dating technique using of liquid scintillation Counter (LSC). This investigation was preceded by sample preparation, chemical and physical cleaning, pretreatment, CO₂ absorption. Sample measurement was performed by LSC after addition of liquid scintillator at the Radiation Chemistry Laboratory of Hasanuddin University. The result showed that the age of the coral is 4673 years old. Measurement of sample from the same batch which was performed at the Centre for Radiation Research in Poznan, Poland, resulted a relatively same age (4505). Based on the above-mentioned results, it can be concluded that the quality of measurement performed at the Radiation Chemistry Laboratory of Hasanuddin University is closely similar to the quality of measurement at the Centre for Radiation Research, Poznan, Poland. (author)

[en] The Scientific Meeting of Radioisotopes, Radiopharmaceuticals and Cyclotrons held on Thursday, November 3, 2016. The theme of annual scientific meeting is ^Enhancing Synergies in the Development and Utilization of Radioisotope, Radiopharmaceutical and Cyclotron Technology for Community Welfare^. The purpose of this annual scientific meeting is to obtain information on the latest developments in nuclear technology related to Radioisotopes, Radiopharmacies and Cyclotrons. The Radioisotope, Radiopharmaceutical and Cyclotron Annual Meeting was attended by 294 participants from 9 Non-Ministry Government Institutions, 13 Hospital representatives, 18 Universities, 7 industry representatives and 2 representatives from abroad namely from the Chool of Pharmacy, Chiba University and Ion Beam Applications. The proceeding consist of 26 articles from BATAN participant as well as outside. (MPN)

[en] Cooling needs for the operation of the cyclotron facility was originally supplied by a chiller with a capacity of 150 TR and declared as waste. By using mini chiller with a capacity of 12.5 TR reckoned with sufficient cooling operation of the cyclotron. However, due to the operation of the cyclotron is not normal, then the mini chiller installed capacity becomes excessive. Consequently mini chiller often trip. For it to be optimized operation of the mini chiller that in order to obtain optimal performance of the mini chiller and a quick trip. The methodology used is to add to the mini chiller load by performing the distribution of cold water to the FCU is located in the Cave of the cyclotron. While the result is optimal performance mini chiller marked with mini chiller operating hours increased from 1 hour then capable of operating up to 15 hours. (author)

[en] One of radioisotopes produced in the Center for Radioisotope and Radiopharmaceutical Technology (PTRR) is Iodine-125. The Iodine-125 is used for manufacturing radioimmunoassay (RIA) kit and for the preparation of seed brachytherapy for prostate cancer diagnosis and therapy. Iodine-125 can be produced by irradiating Xenon-124 gas in Xenon loops facilities at S1 position of experimentation hall in the Center for Multipurpose Reactor G.A. Siwabessy. The irradiation process was based on ¹²⁴Xe (n, γ)¹²⁵Xe nuclear reaction. The ¹²⁵Xe then decays in to Iodine-125. In this experimental study, high enriched ¹²⁴Xe (99.98 %) was used as a target. The target was irradiated at the S1 irradiation facility for 9 hours and 24 hours. Three times of Iodine-125 production runs have been performed giving I-125 activities of 3940 mCi (radionuclide purity of 99.88 %), 1251.4 mCi (radionuclide purity of 99.99 %) and 1491.3 mCi (radionuclide purity of 97.91 %) respectively at 7 days after the end of irradiation. (author)

[en] Routine production of ¹⁸F radionuclide from enriched water target [¹⁸O]H₂O irradiation using heavy particle accelerator (proton) could potentially generate radioisotopes impurities in the product and cyclotron area, which eventually become safety and security concerns to the users and radiation workers. This investigation uses typical self-shielded cyclotron which can accelerate heavy particle (proton) up to a maximum energy of 11 MeV. Measurement and detection of radiation using a portable gamma spectroscopy system in the product of ¹⁸F radionuclide has been carried out and indicates radioisotope impurities such as ⁵⁶Co, ⁵²Mn, and ^110mAg. The radioisotopes are successfully activated by protons and neutrons via nuclear reactions that occur in havar foil and target body during the process of irradiation enriched water target [¹⁸O]H₂O in the cyclotron. TALYS data are used to study the nuclear cross-section and SRIM software to calculate stopping power and range ion in matter. (author)

[en] The design and simulation of cavity's cooling line on 13 MeV cyclotron's RF system has been done. The design for cooling system is cooling pipe of copper material with an inner diameter of 6 mm, length of contact with the cavity is 2204 mm and the cooling medium is water placed on the side of the cavity's surrounding that previously have been created act as a kind of channel. The design was done by calculating analytically, while the simulation is done with CFD (Computational Fluid Dynamics) software. Calculation and simulation results show that the overall increase in the cooling fluid flow gave effect on the decrease of cavity's surface temperature (Ts) and the temperature of the cooling fluid output (Tmo). The calculations show that with the cooling water flow of 15 liters/minute still showed good performance of cooling capacity with cavity's surface temperature of 78, 79 °C and cooling water temperature of 23,83 °C. The simulation results show even heat distribution in the second modification of cooling path with cavity's surface temperature of 73,57 °C and cooling water temperature of 34,53 °C for cooling water flow of 15 liters / minute. (author)

[en] Radiopharmacy has an important role in supporting nuclear medicine activities by producing radiopharmaceuticals that are safe and of the required quality in a consistent way. The International Atomic Energy Agency (IAEA) is committed to promote a rational and practical approach for the implementation of GMP for compounding and manufacturing of diagnostic or therapeutic radiopharmaceuticals. QUANUM audit is one of the strategy to improve quality management system in nuclear medicine practices, including radiopharmacy. This article is aimed to evaluate the established QUANUM audits particularly in radiopharmacy service at Dharmais Cancer Hospital, to support standardized health care which are patients, workers, and environment safety oriented. The QUANUM audit results presented in this article is based on the professional's assessment, including nuclear medicine physician, technologist, medical physicist, and radiopharmacist. The QUANUM checklist emphasized the radiopharmacy service to follow the national standard and regulations. The lack of standardized local regulation on radiopharmacy practices, particularly those regarding to PET tracers, has directed the hospital to refer the established international standard. However, these standards are needed to be harmonized with national regulation in appropriate way. The audit has impacted on improvement of Dharmais Cancer Hospital service. As the development of the radiopharmacy practices would depend on the national regulation and guidelines, this audit could be one of the milestones to support the synergy actions of the government in the arrangement of those policies. (author)

[en] Routinely maintenance and functions test of BATAN's CS-30 cyclotron main beam line has been conducted. These maintenance and function test is conducted to maintain the performance of the system. If these maintenance and testing is not routinely done, than it can decrease the performance of the beam line system overall. The activities of the maintenance here such as scheduling, regular checks and replacement of the components according to the its life time and the condition of each component based on the its specifications. While the testing activities are done by conducting periodically the operation of the system which the results are then compared with the conditions of the its specifications. This test activities including the vacuum pumping testing, gate valve movement testing, beam shutter movement testing, and testing the function of the integrated beam line components as a whole. This activity is intended that when the system is used both for the cyclotron beam function test and irradiation target purposes, the performance of beam line can function properly. From these activities shows that the vacuum pumping system, the gate valve, beam shutter, and the overall performance of components in an integrated beam line is still able to function optimally. (author)

[en] The Airflow pattern between pharmaceuticals room and radioactive laboratorial installations are contradictory. Therefore, it seems difficult to design a room for pharmaceuticals containing radioactive. To solve this problem, the room module with insulating air cleanliness level of class D and C has been developed. This room has been equipped with a radiation shielded glove box that have a cleanliness level of class B and A. VAC Systems in the glove box is made separately from the room to avoid air contamination. The wall of room module is made of polyurethane panel and glove box chasing is made of stainless steel. To protect from radiation, glove box is shielded by 5 cm lead brick and 3 cm lead glass for windows. Airflow of the room was controlled by Fan Filter Unit that can be adjusted using variable speed controller. Air circulation from both room A and room B inside glove box was connected to the building exhaust system equipped with the volume damper. To avoid mixing of air among rooms, each door utilized an interlock system. This design has successfully compromised both VAC system for pharmaceutical lab and the air system for radioactive facilities. (author)

[en] Electricity is an important facility for the continuity of research and development in PTRR BATAN. Stepdown transformer is one of the main components of which serves to lower the medium voltage into low voltage. In the transformers there is protection system, which is useful as a safety system to the transformer and electricity networks when there are anomalies on the transformer. At present the function of the protection system does not protect the transformer, but only cut off the electrical network after a transformer while the transformer is not protected. Modifications protection system aims to fulfill the function of the protection system that protects the transformer and electrical networks. The methodology used is by integrating the transformer protection system with a protection system that is contained in the Medium Voltage Panel. The result is the integration of the transformer protection system in the form of DGPT2 modules with protection system contained in the Medium Voltage Panel. The protection system that has been integrated then tested with simulation to ensure the performance of the system. Thus, if there are anomalies in the transformer, the protection system in the Medium Voltage panel will disconnect the electricity network before the transformer so that the transformer would be safe from further danger. (author)