cover
Contact Name
-
Contact Email
-
Phone
-
Journal Mail Official
-
Editorial Address
-
Location
Kota adm. jakarta selatan,
Dki jakarta
INDONESIA
Atom Indonesia Journal
ISSN : -     EISSN : -     DOI : -
Core Subject : Science,
Exist for publishing the results of research and development in nuclear science and technology Starting for 2010 Atom Indonesia published three times a year in April, August, and December The scope of this journal covers experimental and analytical research in all areas of nuclear science and technology. including nuclear physics, reactor physics, radioactive waste treatment, fuel element development, radioisotopes and radio pharmaceutical engineering, nuclear and radiation safety, neutron scattering, material science and technology, as well as utilization of isotopes and radiation in agriculture, industry, health and environment.
Arjuna Subject : -
Articles 11 Documents
Search results for , issue " Vol 43, No 3 (2017): December 2017" : 11 Documents clear
Synthesis and Characterization of Stoichiometric Spinel-LiMn2O4 Panca Putra, T. Y.S; Deswita, D; Insani, A.; Mugiraharjo, H.; Sukirman, E.; Jahja, A.K.; Priyanto, T.H.; Lee, S.; Kamiyama, T.
Atom Indonesia Vol 43, No 3 (2017): December 2017
Publisher : PPIKSN-BATAN

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1067.44 KB) | DOI: 10.17146/aij.2017.542

Abstract

In this study, spinel LiMn2O4 powder was synthesized from LiOH.H2O and MnOx by conventional and mechanical alloying (MA) methods, followed by heat treatment at 800 °C in O2 for four hours with cooling to room temperature in the furnace at 60 °C/h. It is found that both samples do not show phase transition in low temperature, and this occurred for different reasons. In the MA sample, the presence of Fe as contamination increased the Mn valence and hindered the occurrence of phase transition. The conventional sample does not show phase transition at low temperature due to stoichiometric content, without any contamination. In general, the absence of phase transition occurred due to synthesis condition employed in this study.
Effects of Cooling Fluid Flow Rate on the Critical Heat Flux and Flow Stability in the Plate Fuel Type 2 MW TRIGA Reactor Rahardjo, H. P.; Wardhani, V. I. Sri
Atom Indonesia Vol 43, No 3 (2017): December 2017
Publisher : PPIKSN-BATAN

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (12.635 KB) | DOI: 10.17146/aij.2017.789

Abstract

The conversion program of the 2 MW TRIGA reactor in Bandung consisted of the replacement of cylindrical fuel (produced by General Atomic) with plate fuel (produced by BATAN). The replacement led into the change of core cooling process from upward natural convection type to downward forced convection type, and resulted in different thermohydraulic safety criteria, such as critical heat flux (CHF) limit, boiling limit, and cooling fluid flow stability. In this paper, a thermohydraulic safety analysis of the converted TRIGA reactor is presented by considering the Dynamic Nucleate Boiling Ratio (DNBR) criterion, Onset Nucleate Boiling Ratio (ONBR) limit, and cooling fluid flow stability at various cooling fluid flow rate.The numerical analyses were performed using the HEATHYD program on the hottest channels of reactor core.The combination of heat transfer and fluid flow analysis were conducted for reactor operation at 2 MW with 20 fuel element bundles and four control rod bundles. Incoming fluid flow to the cooling channel was fixed at 44.5 °C temperature and 1.9970 bar pressure, and its flow rate was varied from 1.25 to 3.5 m3/h. By inputting these values, as well as the total power of fuel elements per bundle, the wall temperature distribution of the plate fuel element, cooling fluid temperature distribution, and pressure losses in the channels were obtained for the analysis of CHF limit, boiling limit, and flow stability. It was shown that no boiling occurred for the cooling fluid flow rate range of 2.4 to 3.5 m3/h, and even at the cooling fluid flow rate of 1.25 m3/h where some bubbles occurred, the DNBR was higher than the critical limit (more than 23) while the flow stability criterion in some channels were slightly less than 1 (unstable). At the cooling fluid flow rate of 1.4 m3/h, however, the flow became stable in all channel. The results showed that even though some bubbles start to occur, the plate-fuel-   type 2 MW TRIGA reactor can safely operate in the terms of CHF limit and flow stability.
Thermal Hydraulic Modeling of Once-Through Steam Generator by Two-Fluid U-Tube Steam Generator Code Zeighami, A.; Rahgoshay, M.; Khaleghi, M.; Hashemi-Tilehnoee, M.
Atom Indonesia Vol 43, No 3 (2017): December 2017
Publisher : PPIKSN-BATAN

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (602.742 KB) | DOI: 10.17146/aij.2017.757

Abstract

The THERMIT U-tube steam generator (THERMIT-UTSG) code was used for evaluation for the parametric study of a scaled once-through pressurized water reactor steam generator (OTSG) made by Babcock & Wilcox. The results of the code were compared to the experimental data of the 19-tube OTSG and a simple heat transfer code that was developed by Osakabe. The main calculated thermodynamic parameters were primary-secondary fluid temperatures, tube wall internal and external temperatures that were subjected to primary and the secondary fluid, and the secondary fluid vapor quality. The assessed code can be used for modeling the OTSGs with some modification. The results of THERMIT-UTSG were in agreement with the experimental results and the prediction of Osakabe’s numerical model.
Cover Atom Indonesia Vol 43 No 3 cover, cover
Atom Indonesia Vol 43, No 3 (2017): December 2017
Publisher : PPIKSN-BATAN

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (568.312 KB) | DOI: 10.17146/aij.2017.801

Abstract

Preface Atom Indonesia Vol 43 No 3 preface, preface
Atom Indonesia Vol 43, No 3 (2017): December 2017
Publisher : PPIKSN-BATAN

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (992.096 KB) | DOI: 10.17146/aij.2017.802

Abstract

Assessment of Heavy Metals on Occupationally Exposed Workers from Hair Analysis Damastuti, E.; Adventini, N.; Syahfitri, W.Y.N.; Kurniawati, S.; Lestiani, D.D.; Santoso, M.
Atom Indonesia Vol 43, No 3 (2017): December 2017
Publisher : PPIKSN-BATAN

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (22.293 KB) | DOI: 10.17146/aij.2017.772

Abstract

The use of human hair as a tool in assessing changes and abnormalities in human bodies has been increasing for last decades since it may reflect the health status or environmental condition of habitation or working place of individuals as well as population groups. Compared to other body tissue or fluids, hair provides an ease of elemental analysis especially in reflecting the long-term exposure. This research was conducted to determine the elemental content especially heavy metals, since they are bioaccumulated in human body organs and impact human health, in hair of workshop workers and traffic services officers as exposed groups and its comparison with control group and references data for assessing of occupational exposure. Thirty-five automotive workshop workers and 32 traffic services officers’ hair specimens were collected in Bandung, while hair specimens of the control group were collected from 43 healthy individuals. The elemental concentrations in hair specimen were analyzed using neutron activation analysis (NAA) for mercury and chromium, and atomic absorption spectrometry (AAS) for lead and arsenic.  The accuracy of the method was evaluated using GBW 07601 human hair certified reference material (CRM) and it was found to give good results in accordance with the certificate values. It was found that chromium, lead, and arsenic hair concentration in exposed groups (0.88, 10.7, and 0.051 mg/kg, respectively) were higher than in control group (0.27, 4.52, and 0.045 mg/kg, respectively), while mercury hair concentration of traffic services officers were higher than control group but mercury hair concentration of automotive workshop workers were lower than in control group (1.41 mg/kg). The t-test statistical results shown that mercury concentrations in one exposed group did not differ significantly from the control, but other exposed groups showed otherwise. The level of mercury in hair is strongly attributed not only to environmental exposure, but also to lifestyle and dietary habits, while t-test statistical results ofchromiumand lead differ significantly with p value < 0.05. These results indicate that heavy metal hair concentrations were well quantified to show the abnormalities of elemental concentration in human hair for evaluating the occupational exposure. 
Acknowledgement Atom Indonesia Vol 43 No 3 ack, ack
Atom Indonesia Vol 43, No 3 (2017): December 2017
Publisher : PPIKSN-BATAN

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (343.397 KB) | DOI: 10.17146/aij.2017.803

Abstract

Technetium-99m-Labeled Diethylcarbamazine Citrate (99mTc-DEC) as a New Diagnostic Agent for Lymphatic Filariasis Detection Oekar, N. K.; Hanafiah, A.; Setiawan, D.; Widyasari, E.M.
Atom Indonesia Vol 43, No 3 (2017): December 2017
Publisher : PPIKSN-BATAN

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (176.556 KB) | DOI: 10.17146/aij.2017.747

Abstract

Lymphatic filariasis or more commonly known as elephantiasis disease has infected more than 120 million people in 80 countries; and more than 40 million of them are unable to work, in addition to disruption of aesthetic values. The problem faced by almost all people in combating this infectious disease is delayed diagnosis. The sufferers do not realize that they have been infected with this disease. A specific and accurate method of early detection is therefore needed. 99mTc-labeled Diethylcarbamazine-citrate (99mTc-DEC) has been successfully prepared. However, as part of the discovery and development of new drugs, the fulfillment of pharmaceutical and safety requirements have to be evaluated. Physico-chemical aspects such as stability, purity levels, and other pharmaceutical requirements, as well as pharmacokinetic studies and route of administration, are important parameters to be studied. The stability test showed that after seven months of storage, a preparation in a dry kit retains an efficiency of labeling and a purity level of more than 90 % and its physico-chemical and biological characteristics remained steady. Biodistribution test in Wistar rat showed that the greatest accumulation occurred in the lymphatic system, especially in the popliteal glands and in lumbar and mesenteric lymph nodes. Imaging with a gamma camera after intradermal and intravenous injections to the experimental animals resulted in a positive image that showed 99mTc-DEC accumulation in the target organ. The results of this innovation are expected to contribute significantly to improving public health, particulary in early detection of filarial infections. In addition, this result is expected to be a concrete contribution to the program of "The Global Goal of Elimination of Lymphatic Filariasis as a Public Health Problem by the Year 2020”.
Comprehensive Prediction of Thermosyphon Characteristics in Reactor Passive Cooling System Simulation Loop FASSIP-01 Tjahjono, H.
Atom Indonesia Vol 43, No 3 (2017): December 2017
Publisher : PPIKSN-BATAN

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (41.319 KB) | DOI: 10.17146/aij.2017.777

Abstract

Passive cooling mechanism for a nuclear reactor has been proven to be very important since the Fukushima Daiichi Reactor accident that was caused by active cooling system malfunction due to total loss of electrical power source. In the Center for Nuclear Reactor Technology and Safety of BATAN, the cooling mechanism was studied by using a natural circulation test loop named FASSIP-01 that applied thermosyphon mechanism of water inside pipes of 1” diameter. This study aimed to analytically predictthe thermal characteristics of the loop including its response time towards steady condition usingthe MATLAB calculation program. This prediction derived the influence of several parameters such as the heat transfer coefficient of the cooler side (h-cooler), the heater power, the elevation difference between the heater and cooler(DZ), and the effects of the insulation thickness of pipe (IT) on the flowrate, temperature, and the heat power distribution across all components in the loop. The result showed that byavoiding boiling condition, for transferring the heater power of 1000 W and 2000 W,the needed h-cooler exceeds 200 and 400 W m-2°C-1, respectively. For a h-cooler of 200 W m-2°C-1, the circulation flow rate increased from 0.04 to 0.06 kg/s-1 for heater power increase from 1000 W to 2000 W. Those flow rates were decreased to 0.037 and 0.052 kgs-1 by increasing h-cooler to 1000 W m-2°C-1.The results were in agreement with other studies on rectangular loops in the literature.The time needed to reach 95 % towards steady state was predicted to be more than 13 hours. Reduction of this time to less than five hours was possible by reducing the heater tank volume from 100 L to 30 L or by modifying the starting heater input power.
Comparative Analysis of Direct and Indirect 131I Measurement Methods from the Stack to Outdoor Suhariyono, G.; Bunawas, B
Atom Indonesia Vol 43, No 3 (2017): December 2017
Publisher : PPIKSN-BATAN

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (138.396 KB) | DOI: 10.17146/aij.2017.756

Abstract

The radioisotope production facility at PUSPIPTEK Serpong produces and processes 131I that can disperse to the settlements (community) and the environment around the Serpong Nuclear Area (SNA). 131I is produced routinely for medical uses in hospitals and pharmacies, for both domestic uses and export. 131I is a beta and gamma emitting radioactive material and can cause thyroid cancer. The problem was that there was so far no research and in-depth assessment of the aerial dispersion of 131I radioactivity emitted from the radioisotope production stack to the environment at actual conditions. The research was conducted through simultaneous measurement of 131I radioactivity in the stack of the 131I radioisotope production facility, Serpong, and outdoor in house courtyards around SNA in normal condition (no accident) based on the variations of the distance and wind direction. Direct measurements were carried out with a portable in-situ NaI(Tl) detector at outdoor, and with a LaBr3 detector in the stack. Indirect measurements were carried out by using charcoal filter and vacuum pump in the stack and outdoor. The direct measurement method has many advantages over the indirect measurement. The direct measurement method was found to be more accurate, less expensive, easier to operate, needing just one operator in its implementation, portable, and can be operated continuously and for long durations. The overall activity concentrations of 131I on average obtained by either direct or indirect method were still below the upper limit of 131I activity concentration in the air (530 Bq/m3) stipulated by the Regulation of the Chairman of BAPETEN (Perka BAPETEN) No. 7/2013. 

Page 1 of 2 | Total Record : 11


Filter by Year

2017 2017


Filter By Issues
All Issue Vol 45, No 3 (2019): December 2019 Vol 45, No 2 (2019): August 2019 Vol 45, No 1 (2019): April 2019 Vol 44, No 3 (2018): December 2018 Vol 44, No 2 (2018): August 2018 Vol 44, No 1 (2018): April 2018 Vol 43, No 3 (2017): December 2017 Vol 43, No 2 (2017): August 2017 Vol 43, No 1 (2017): April 2017 Vol 42, No 3 (2016): December 2016 Vol 42, No 2 (2016): August 2016 Vol 42, No 1 (2016): April 2016 Vol 41, No 3 (2015): December 2015 Vol 41, No 2 (2015): August 2015 Vol 41, No 1 (2015): April 2015 Vol 40, No 3 (2014): December 2014 Vol 40, No 2 (2014): August 2014 Vol 40, No 1 (2014): April 2014 Vol 39, No 3 (2013): December 2013 Vol 39, No 2 (2013): August 2013 Vol 39, No 1 (2013): April 2013 Vol 38, No 3 (2012): December 2012 Vol 38, No 2 (2012): August 2012 Vol 38, No 1 (2012): April 2012 Vol 37, No 3 (2011): December 2011 Vol 37, No 2 (2011): August 2011 Vol 37, No 1 (2011): April 2011 Vol 36, No 3 (2010): December 2010 Vol 36, No 2 (2010): August 2010 Vol 36, No 2 (2010): : AUGUST 2010 Vol 36, No 1 (2010): April 2010 Vol 35, No 2 (2009): July 2009 Vol 35, No 1 (2009): January 2009 Vol 34, No 2 (2008): July 2008 Vol 34, No 1 (2008): January 2008 Vol 33, No 2 (2007): July 2007 Vol 33, No 1 (2007): January 2007 Vol 32, No 2 (2006): July 2006 Vol 32, No 1 (2006): January 2006 Vol 31, No 2 (2005): July 2005 Vol 31, No 1 (2005): January 2005 Vol 30, No 2 (2004): July 2004 Vol 30, No 1 (2004): January 2004 Vol 16, No 1 (1990): JANUARY 1990 ARTICLE IN PRESS More Issue