[en] NST Quarterly reports current development in Nuclear Science and Technology in Malaysia. In this issue it highlights MINT activities in nuclear medicine. Briefly discussed the topics i.e radiopharmaceuticals, nuclear medicine procedures and MINT's role in nuclear medicine

[en] Gaharu oil extraction system developed by Nuclear Malaysia is a hydro-distillation system innovated from the tradition method and improvised with science and technology to enhance the process efficiency and safety. The main component of gaharu oil extraction system included the extraction vessel, condenser and collection decanter. Apart from the extraction unit, the gaharu oil extraction process also incorporated two major supporting systems. These systems are the liquefied petroleum gas (LPG) system and the water cooling system. The LPG system is solely used for heating the vessel, which contains a mixture of treated and grind gaharu bark and fluid, to produce steam. Meanwhile the water cooling system is used to supply the necessary cool water into the condenser unit and facilitate in the transformation of the mentioned steam into gaharu oil and distilled water. The dissipate water from this process will be channeled back into the water cooling ponds to let excess heat to be removed and allow the cool water to reuse again by the process. (author)

[en] There are 27 institutions in Malaysia involved in research and development (R and D). They are categorised into three different groups; the universities, Government's research institutes and statutory body research institutions. The universities are governed by the University and University College Acts and are placed under the jurisdiction of the Ministry of Education. The statutory body research institutions exist under their respective Acts while Government research institutes are placed under various government departments

[en] Full-text: Communication skills are among the skills in leadership. The importance of communication to leadership is strongly emphasized by many scholars. Every human being who lives on this earth is always faced with a risk, no matter at home or at work, it is also in the competition that we have. If we fail to manage the risks well, it is a bad sign. Risk at work is often associated with activity in relation to the work done causing harm to an employee. When this risk is not controlled, it will trigger an accident at work. To prevent this accident, preventive measures should be taken at work. It is the responsibility of every employee and employer to ensure that the work environment is safe and healthy to generate more productive outcomes. (author)

[en] Computational fluid dynamics (CFD) is a branch of fluid mechanics that uses numerical analysis and data structures to solve and analyze problems that involve fluid flows or hydrodynamics. Computers are used to perform the calculations required to simulate the interaction of liquids and gases with surfaces defined by boundary conditions. With high-speed supercomputers, better solutions can be achieved. Ongoing research yields software that improves the accuracy and speed of complex simulation scenarios such as combustion or mixing operation. Nuclear Malaysia has two (2) software which is ANSYS 13 and 19.2 for CFD applications. It is a general purpose software, used to simulate interactions of all disciplines of physics, structural, vibration, fluid dynamics, heat transfer and electromagnetic for engineers. This paper will show case the use of CFD in multiple applications in Nuclear Malaysia. Plant Assessment Technology (PAT/ BTI), Reactor, Wastec and e-TAG are among the potential users of CFD in Nuclear Malaysia. Its application in R&D has become stepping stone in going parallel with Fourth Industrial Revolution (FIR) in Malaysia. (author)

[en] This paper describes the design of a window cooling system implementation for the new low energy electron beam (EB) accelerator installed at Block 43T, Nuclear Malaysia. The low energy EB is a locally designed and developed with a target energy of 300 keV. The heat coming from the beam energy is very high; therefore an appropriate cooling system is required to prevent the breaking of the very thin (μmm) titanium window which could avoid disruption the beam transportation inside the vacuum accelerating tube and breakdown of the high voltage equipment. Therefore, the new window cooling system is designed and fabricated to get the desired air cooling system to cool down the 9 kwatt (30 mA, 300 keV) beam power. The measurement of airflow distribution within electron accelerator window of this design is presented. (author)

[en] This study aims to measure service quality performance and identify critical service quality characteristics as perceived by the customers. An integrated results survey that conducted by seven service centers that certified with Quality Management System (QMS) in Nuclear Malaysia are analysed. This is followed by constructing House of Quality (HoQ) and identifying other parameters for the Quality Function Deployment (QFD) matrix. HoQ is a simple and attractive service innovation tool which can be used to directly show comprehensive information which contained the voice of customer (VOC), technical response, technical correlation and matrix relationship. This study revealed that the information's from HoQ with further discussion on planning part which can be used to assist management in knowing the overall detail information of service center achievement and recognizes the solution for unsatisfied customer through priority improvement activity to enhance the customer satisfaction in future. (author)

[en] For radiation processing of matter or sterilization of medical product, it is extremely important that proper dosimetry be performed using calibrated dosimeters and internationally accepted procedures. A good and reliable electron beam dosimetry system, together with the measuring procedure, has been established with the commissioning of the electron beam irradiator, ALURTRON at MINT. An experience of good process dosimetry as part of the overall process at the ALURTRON irradiator is described

[en] NST Quarterly reports current development in Nuclear Science and Technology in Malaysia. In this issue it highlights MINT activity in distribution of radiopharmaceuticals and medical services in the country

[en] Variable Refrigerant Volume (VRV) system is one of the Heating, Ventilation and Air Conditioning (HVAC) type in the building. VRV system is a multi-split type air conditioner that uses variable refrigerant flow control to provide customers with the ability to maintain individual zone control in each room and floor of a building. VRV used in Building 37 is made by Mitsubishi Heavy Industries that was completely installed in 2011 with two pipes system format. The objectives of this study are to understand the Variable Refrigerant Volume (VRV) system and also to study the root cause of its problem in Building 37, Agensi Nuklear Malaysia. The result of the study study suggests poor workmanship during installation process and insufficient electrical grounding are suspected as the causes of on-going and repeating problems occurred. Hence, Bahagian Kejuruteraan (BKJ) has worked out with the service contractor to identify the main problem and leaking area before proceeding with repair and commissioning activities. (author)