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Prodi Sarjana dan Pascasarjana Fisika Fakultas Matematika dan Ilmu Pengetahuan Alam Institut Teknologi Bandung Gedung Fisika, Jalan Ganesa 10, Bandung 40132, INDONESIA
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Indonesian Journal of Physics (IJP)
Published by Institut Teknologi Bandung
ISSN : 23018151     EISSN : 29870828     DOI : https://doi.org/10.5614/itb.ijp
Core Subject : Science, Engineering,
Astronomy Computer Science & IT Earth & Planetary Sciences Electrical & Electronics Engineering Energy Engineering
Indonesian Journal of Physics welcomes full research articles in the area of Sciences and Engineering from the following subject areas: Physics, Mathematics, Astronomy, Mechanical Engineering, Civil and Structural Engineering, Chemical Engineering, Electrical Engineering, Geotechnical Engineering, Engineering Science, Environmental Science, Materials Science, and Earth-Surface Processes. Authors are invited to submit articles that have not been published previously and are not under consideration elsewhere.
Arjuna Subject : Fisika dan Astronomi - Fisika Nuklir dan Molekuler, dan Ooptik
Articles 5 Documents
 1 
Search results for , issue "Vol 16 No 4 (2005): Vol. 16 No. 4, October 2005" : 5 Documents clear
Feasibility Study on Long-Lived Fission Products Transmutation in Equilibrium Fuel Cycles of PWR Abdul Waris; H. Sekimoto
Indonesian Journal of Physics Vol 16 No 4 (2005): Vol. 16 No. 4, October 2005
Publisher : Institut Teknologi Bandung

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Abstract

A study on long-lived fission products (LLFP) transmutation in equilibrium fuel cycles of pressurized water reactors (PWR) has been performed. The seven important LLFP, i.e., 79Se, 93Zr, 99Tc, 107Pd, 126Sn, 129I, and 135 Cs were considered in this study. In order to get a comprehensive perspective, single isotope/element transmutations and mixed isotopes/elements transmutations for both isotopic separation and elemental separation were employed. The calculation results showed that the transmutation of the all seven LLFP together with isotopic separation are feasible by increasing the required enrichment of loaded uranium fuel up to 7.1wt% for standard PWR. Isotopic separation is not necessary for mixed technetium and iodine transmutation. The transmutation of the all seven LLFP together with elemental separation may not possible since zirconium transmutation in PWR is a formidable task.
Design Study of Ship Based Nuclear Power Reactor (Core Geometry Optimization) Dian Fitriyani Fitriyani; Zaki Su'ud
Indonesian Journal of Physics Vol 16 No 4 (2005): Vol. 16 No. 4, October 2005
Publisher : Institut Teknologi Bandung

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Abstract

Preliminary design study of ship based nuclear power reactor has been performed. The results of thermo hydraulics analysis is presented and the core geometry optimization is reported. The reactors are basically lead-bistmuth cooled fast reactor using nitride fuels to enhance neutronics and safety performance. Some design modification are performed for feasibility of operation under ship dynamics caused by external forces from the marine environment such as wind, waves and tidal current that impressing reactor core performance. The basic reactor characteristics is that the power level is 100-200 MWth and excess reactivity is about 1$. In this study, the steady state thermo hydraulic calculation was further performed to investigate the effect of core geometry on the design performance of the proposed ship based reactors under variation of ship oscillation about 0o– 40o. The calculation result show that balance (square) core is the convenient core geometry for the best thermo hydraulic performance optimization of design. The ship oscillations influence to balance core temperature distribution is small enough compared to low core, while pressure drop even also not as high as at tall core. The variations of total coolant flow-rate across the core are also estimated to investigate the natural circulation level and necessary pumping power for the proposed design.
Preliminary Design Study of Thorium(Th) and Protactinium ( 231 Pa) Based Fuel for Tight Lattice Long Life BWR Eka Sapta Riyana; Zaki Su’ud
Indonesian Journal of Physics Vol 16 No 4 (2005): Vol. 16 No. 4, October 2005
Publisher : Institut Teknologi Bandung

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Abstract

A preliminary design study for the utilization of thorium based fuel loaded with 231Pa on tight lattice BWR type reactor has been performed. Protactinium-231 has very interesting neutronic properties, which enable the core to reduce initial excess-reactivity and simultaneously increase production of 233U to 231Pa in burn-up process. Optimizations the content of 231Pa in the core enables the BWR core to sustain enough reactivity for long period of time with reasonable burn-up reactivity swing. Based on the optimization of fuel element composition (Th and Pa) in low moderation environment (tight lattice core) can be achieved reactor core with longer operation time, 20 ~ 30 years operation without fuel shuffling or refueling, with average power densities of about 35 watt/cc.
Study of Deep Sounding Time-Domain Electromagnetic (TDEM) Method Using Horizontal Electric Dipole to Infer Subsurface Resistivity Structure Wahyu Srigutomo; Tsuneomi Kagiyama; Wataru Kanda; Hisashi Utada
Indonesian Journal of Physics Vol 16 No 4 (2005): Vol. 16 No. 4, October 2005
Publisher : Institut Teknologi Bandung

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Abstract

Electromagnetic methods to infer subsurface resistivity structure particularly in volcanic and hydrothermal regions are considered highly effective to apply. Time domain electromagnetic (TDEM) method as one of them, is a robust method utilizing controlled-galvanic source which has higher ability to penetrate deeper structure. This paper tries to elaborate the theoretical formulation of TDEM with a long-grounded current wire for a layered-earth problem, the mathematical inversion algorithm to find the suitable model for interpretation as well as its sensitivity analysis, and the application to synthetic and real measured data.
VLF Data Analysis Through Transformation Into Resistivity Value: Application tTo Synthetic and Field Data Wahyu Srigutomo; Asep Harja; Doddy Sutarno; Tsuneomi Kagiyama
Indonesian Journal of Physics Vol 16 No 4 (2005): Vol. 16 No. 4, October 2005
Publisher : Institut Teknologi Bandung

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Abstract

Transformation of VLF-EM signals, which are approximated as the real and imaginary components of the ratio between the vertical and the horizontal components of magnetic fields was carried out in this study to improve the quantitative interpretation aspect of VLF analysis. The transformation filter has been tested using synthetic data generated by a two-dimensional finite element algorithm that provides VLF responses for several models typically encountered in VLF surveys. The transformed apparent resistivity profiles show good agreement in value and pattern to those modeled by the finite element algorithm. The transformation was applied to the field data and further analysis was conducted by inverting the recorded original VLF-EM signals and the transformed apparent resistivity into a two-dimensional resistivity-depth section. From the comparison with the dc-resistivity-depth section obtained previously, the resulted resistivity section revealed the general features of the subsurface structure.

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