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All Journal Ganendra: Majalah IPTEK Nuklir Urania Jurnal Ilmiah Daur Bahan Bakar Nuklir Jurnal Ecolab
Iman Kuntoro
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Computer Science & IT Environmental Science Materials Science & Nanotechnology Other

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NEUTRONIC ANALYSIS ON IRRADIATION OF THE LEU ELECTROPLATING TARGET IN THE RSG-GAS REACTOR FOR PRODUCTION OF 99MO RADIONUCLIDE Surian Pinem; Tagor Malem Sembiring; Tukiran Tukiran; Iman Kuntoro
GANENDRA Majalah IPTEK Nuklir Volume 21 Nomor 2 Juli 2018
Publisher : Website

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (429.215 KB) | DOI: 10.17146/gnd.2018.21.2.4392

Abstract

RSG-GAS reactor is a research reactor operated for radioisotope production, neutron activation analysis, research material testing, industry demand, R & D institutions and universities. One of the routine activities performed for RSG-GAS reactor operation is irradiation of LEU targets into the core to produce 99Mo radionuclide. The target insertion in the core will change the neutronic characteristic of the core so it can exceed the safety limits of reactor operation. This paper analyzes the neutronic parameters due to the insertion of the LEU electroplating target into the reactor core irradiation facility. The neutronic parameters for optimizing the LEU electroplating irradiated target are important for the safety of the reactor operation. Neutronic parameter calculations were performed using WIMS/D5 and Batan-3DIFF codes routinely used for RSG-GAS core calculations. Based on calculations by irradiating the LEU electroplating target in a CIP irradiation position of 36 g causes a reactivity change of 597.724 pcm and a maximum radial power peaking factor of 1.3078. Both of these quantities are within the limits permitted for the safety of the reactor operation.
NEUTRONIC AND THERMAL HYDRAULICS ANALYSIS OF CONTROL ROD EFFECT ON THE OPERATION SAFETY OF TRIGA 2000 REACTOR Surian Pinem; Tukiran Surbakti; Iman Kuntoro
Urania : Jurnal Ilmiah Daur Bahan Bakar Nuklir Vol 25, No 3 (2019): Oktober, 2019
Publisher : website

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (500.016 KB) | DOI: 10.17146/urania.2019.25.3.5576

Abstract

NEUTRONIC AND THERMAL HYDRAULICS ANALYSIS OF CONTROL ROD EFFECT ON THE OPERATION SAFETY OF TRIGA 2000 REACTOR. Analysis of neutronic and thermal-hydraulics parameters of whole operation cycle is very important for the safety of reactor operation. During the reactor operation cycle, the position of the control rods will change due to reactivity changes. The purpose of this study is to determine the effect of control rods position on neutronic and thermal-hydraulics parameters in relation to the safety of reactor operation of the TRIGA 2000 reactor using silicide fuel of MTR plate type. Those parameters are power peaking factor, reactivity coefficients, and steady-state thermohydraulic parameters. Neutronic calculations are performed using a combination of WIMSD/5 and Batan-3DIFF codes and for thermal-hydraulics the calculations are done using WIMSD/5 and MTRDYN codes. The calculation results show that the reactivity coefficient values are negative for all control rod positions both at CZP and HFP conditions. The MTC value decreases when the control rod is inserted into the active core while the FTC value increases. The total ppf results and temperature in steady-state rise when the control rods are inserted of into the active core whereby the maximum value occurs at the position of the control rods of 20 cm from the bottom of the active core. The calculation results of ppf, reactivity coefficient, and thermal-hydraulics parameters lay below safety limits, indicating that the TRIGA 2000 reactor can safely use U3Si2-Al silicide fuel as a substitute fuel for cylindrical type fuel.Keywords: neutronic, thermal-hydraulic parameter, control rod effect, TRIGA 2000, silicide fuel.
DISTRIBUSI UNSUR MAKRO DAN MIKRO DALAM ABU GUNUNG MERAPI YOGYAKARTA Theresia Rina Mulyaningsih; Iman Kuntoro; Alfian Alfian
Jurnal Ecolab Vol 6, No 1 (2012): Jurnal Ecolab
Publisher : Pusat Standardisasi Instrumen Kualitas Lingkungan Hidup Laboratorium Lingkungan (P3KLL)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20886/jklh.2012.6.1.12-22

Abstract

Telah dilakukan analisis kandungan unsur dalam abu Gunung Merapi pasca erupsi Oktober - Nopember 2010 dengan teknik analisis aktivasi neutron (AAN). Pengambilan sampling dilakukan oleh peneliti PTAPB-BATAN pada tanggal 9 dan 10 Nopember 2010 di 10 titik sampling. Lokasi sampling sebanyak 4 titik di Kabupaten Sleman, 1 titik di Kabupaten Magelang, 3 titik di Kabupaten Klaten dan 2 titik di Kabupaten Boyolali. Sampel abu vulkanik dikeringkan,diayak lolos saring 200 mesh dan ditimbang 30-50 mg dalam vial polietilen. Iradiasi dilakukan pada fluks neutron termal 1013 n.cm-2.det-1 di fasilitas iradiasi Reaktor Serba Guna GA. Siwabessy, Serpong. Pencacahan cuplikan pasca iradiasi dilakukan dengan detektor resolusi tinggi HPGe yang digabungkan dengan penganalisis puncak multi saluran. Analisis data dilakukan dengan perangkat lunak GENIE 2000 dan k0-IAEA. Hasil analisis menunjukkan bahwa unsur dalam abu vulkanik terdiri atas unsur makro (dalam persen) Al 10,45-13,37; Fe 4,44-8,79; Na 2,55- 3,35; Ca 1,03-8,82; Mg 0,61-1,75; Ti 0,31-0,58; dan Mn 0,12-0,17, unsur mikro (<500 mg/kg) Ba, Zn, Sb, Eu, U, Hg, Hf, Ce, Yb, La, Sc, Co, Cs, Dy, Tb, Lu, Rb dan V. Distribusi unsur-unsur ini hampir merata di semua titik lokasi sampling kecuali untuk unsur As, Zn dan Cr hanya ditemukan di beberapa lokasi sampling. Adanya logam berat Hg, As, dan Cr, perlu mendapat perhatian khusus dalam kaitan pemanfaatan abu vulkanik dalam kehidupan masyarakat yang mempunyai dampak terhadap kesehatan manusia dan lingkungan. Abu vulkanik dapat digunakan sebagai bahan bangunan, bahan keramik dan lahan pertanian
Co-Authors Alfian Alfian Surian Pinem Surian Pinem Tagor Malem Sembiring Theresia Rina Mulyaningsih Tukiran Surbakti Tukiran Tukiran