bluuebunny/crossref_metadata_2025_split huggingface dataset:
Texture Analysis on the AZ31 Magnesium Alloy Using Neutron Diffraction Method
Authors: Priyanto Tri Hardi , Insani Andon , Muslih Rifai , Bharoto  
Published: February 2020

Abstract
The nature of crystalline materials depends on the individual crystal properties and the features of the polycrystalline state. The direction of crystallite orientation (texture) can undergo evolution during casting, processing, deformation, welding, and also heat treatment. Because texture plays an important role in mechanical characteristics and physical behavior, initial characterization before mechanical treatment needs to be analyzed first. The neutron diffraction method for texture analysis has advantages compared to the x-ray diffraction method, because neutrons can penetrate the material up in the order of centimeters (bulk, texture) compared to x-rays which are only on the surface of the material (surface texture). This research uses magnesium alloy, because this alloy is very light, and is widely used in industries, such as the automotive, computers, communication systems and electronics. The magnesium alloy used is AZ31 type. The AZ31 magnesium alloy is selected due to the most ductile and the most popular amongst AZ wrought alloys (Mg-Al-Zn group). Initial characterization using the neutron diffraction method was held away before the welding procedure was taken out. In this study, a texture neutron diffractometer (DN2), BATAN, set at a wavelength of 1.2799 Angstrom was used to characterize AZ31 material. The neutron source is produced by the GA Siwabessy reactor, which operates at a power of 15 MW. From the characterization of the neutron diffraction pattern, four pole figures {100}, (002}, {101} and {102} were taken. From the pole figure analysis, the crystallite orientation (texture) was obtained in the direction of {001} <110>. The highest intensity lies in the basal center (0002), also seen basal fiber {0001} and prismatic fiber {10-10}
Construction of digital survey meter model smd-03 using atmega 8 microcontroller
Authors: Jumari  , Supriyanto Nurhidayat , Aditesna Heryuli , Widodo Susilo 
Published: February 2020

Abstract
Digital Survey Meter model SMD-03 has been made. The Digital Survey Meter model SMD-03 was built using the GM LND-714 as the detector, CD4011 as pulse shaping circuit, ATMEGA 8 as a counter circuit and 8x2 LCD as a display. The purpose of the construction of this digital Survey Meter SMD-03 is to develop nuclear instrumentation, especially digital survey meter, especially in improving the stability counting system. The works principle of GM detector to convert the radiation beam into electric pulses. The electrical pulses are inserted into the inverting circuit and pulse shaping circuit to invert the pulses and formed into digitals pulse. The digitals pulses then are inserted into ATMega 8 to be counted and converted into mR/h and then displayed on the 8x2 LCD, measurement range : 0 – 30 mR/h. This instrument is equipped with a buzzer as a sound indicator, this activity includes the manufacture of hardware and software and testing. From the DC high voltage stability test the value of high voltage instability is 0.1%, and from the test results shows the counting linearity value R2 = 1, and counting stability test/chi-square test (X2) = 9.58. The data test results show that the digital survey meter model SMD-03 has been made can function properly.
Design of control instrumentation system for setting the stripper position on DECY-13 Cyclotron
Authors: Saminto  , Susanto Anang , Fajarudin Rizky , Budianto Anwar , Abimanyu Adi 
Published: February 2020

Abstract
This research aims to design a stripper positioning system with input in the form of angle values and outputs are the x, y coordinates of each stripper. This system consists of hardware and software. The hardware consists of Fx2424 Super PLC, micro-step driver, stepper motor and dc power supply. The software includes Super PLC programming for stepper motor motion using features of the i-TRILOGI program and LabView program for the user interface. The test results show that stripper A with a length of 85 mm, an input angle of 60 degrees, obtained x; y coordinates are 435; 193mm. For stripper B with a length of 85 mm, an input angle of 240 degrees, obtained x; y coordinates are 400; 118 mm. For stripper C with a length of 85 mm, an input angle of 90 degrees, obtained x; y coordinates are 415; 75 mm. Overall test results show that the stripper position control system can be used to rotate and monitor the position of the stripper on the DEC-13 cyclotron.
Analysis of nitrogen ion implantation on the corrosion resistance and mechanical properties of aluminum alloy 7075
Authors: Hapsari Sophie , Sujitno Tjipto , Ahmadi Haerul , Suprapto  , Aziz Rizky Abdul 
Published: February 2020

Abstract
The present work reports the effect of nitrogen ion implantation on aluminum alloy 7075. The microhardness, corrosion resistance, and surface nanostructure were investigated. The implantation was carried out at energy 60 keV with the ion doses used were 1.70 × 1017 ion/cm2, 1.86 × 1017 ion/cm2, 2.02 × 1017 ion/cm2, 2.17 × 1017 ion/cm2, and 2.33 × 1017 ion/cm2. The microhardness test was performed to study the hardness of the implanted layer which was characterized by X-ray Diffraction (XRD). The potentiodynamic corrosion test was performed in a 0.5 mol/l NaCl solution. The surface nanostructure was investigated by atomic force microscopy (AFM) to study the surface roughness after implantation. The results showed that the microhardness after implantation at 2.17 × 1017 ion/cm2 increased by 90.81%. The increase was attributed to the formation of the AlN phase. The AlN phase was confirmed at 2-theta peaks of 39.53°, 45.84°, 66.90°, and 80.54°. The corrosion test showed the improvement of corrosion resistance by the decrease of corrosion rate from 4.49 mpy to 1.43 mpy. The atomic force microscopy showed the arithmetical mean height (Sa) value was 37.5 nm and the root means square (Sq) value was 47.6 nm. The ion implantation induced the change of material surface due to the penetration of nitrogen ion into the material.
Synthesis of reduced graphene oxide modified Cu (rGO-Cu) by gamma irradiation and its electroactive properties
Authors: Nurfiana Fifi , Giyatmi  , Anggita Nidha 
Published: February 2020

Abstract
Electroactive materials with excellent performance are developed to be applied in different fields. In this study, Graphene Oxide (GO) was synthesized using the Hummer method then reduced and modified with Cu trough gamma irradiation (radiolytic reduction) for dose variations. The optimum dose that produces the highest electroactive is 35 kGy which was tested with cyclic voltammetry. The results of FTIR analysis show the characteristics of functional groups found in GO and rGO are different. The modification of rGO with Cu was successfully shown from the results of XRD and SEM-EDX analysis. The results of the XRD analysis showed that there are two peaks at position 2 theta 10.58° which showed the presence of GO and at position 2 theta 42.55° which indicates the presence of Cu. The results of the SEM-EDX analysis showed that there is 2.25% wt of Cu on the surface of the rGO.
Characterization of wood-borax composites as alternative neutron shielding material using neutron radiography techniques
Authors: Afrozi Agus Salim , Rachminisari Auring , Salam Rohmad , S Asep Nana 
Published: February 2020

Abstract

To protect operators of equipment using neutron radiation, an alternative material is needed as a neutron shielding which is lightweight and has a high neutron absorption. One alternative material that can be used is wood dust. In this study pure wood sawdust and 30% borax-wood composites were investigated as alternatives to shielding neutrons. Mixing wood sawdust and borax was done using HEM (High Energy Milling) for 1 hour, then pressed at 2000 Psi using a manual press with variations in thickness of 5 mm, 10 mm, 15 mm and 20 mm. SEM characterization results show, the grain size of wood in pure wood and 30% boraxwood composites is still quite large around 50 μm, the EDS results show no significant difference in wood content and 30% borax-wood composites. XRD characterization results showed no new phases were formed in the 30% borax-wood composite. The results of observations with optical microscopy showed that 30% borax-wood composite which were compressed did not form pores but were not evenly distributed. From the compressive test data, there was a decrease in the compressive ability of 30% borax-wood composites compared to pure wood dust from 226.6 N to 110.4 N. The neutron absorption test results using the Neutron Radiography technique with the film technique showed the addition of 30% borax to sawdust increased the neutron absorption rate by an average of 19.05% in wood to 20.24% in 30% borax-wood composites and increased the attenuation coefficient of 0.36 cm· in pure wood to 0.53 cm
1
in 30% borax-wood composite.
Initial optimization of fine tuner’s position on the cyclotron DECY-13’s rf dee system
Authors: Darmawan R S , Wibowo K , Diah F I 
Published: February 2020

Abstract
Initial optimization of fine tuner’s position on the cyclotron DECY-13’s rf dee system. Initial optimization of fine tuner’s position has been carried out on the cyclotron DECY-13’s RF dee system. The initial optimization was carried out to obtain the resonance frequency 77,76 MHz between RF generator and RF dee system in accordance with the specification of cyclotron DECY-13. The optimization was performed by measuring cyclotron DECY-13’s frequency using the Network Analyzer tool while shifting the fine tuner’s position. The shifting of fine tuner’s position started from the farthest to the closest gap between fine tuner and dee component with an increment of 5 mm continued with an increment of 1 mm from the nearest measured frequency. We obtain cyclotron DECY-13’s frequency for position 0 mm, 5 mm, 10 mm, 15 mm, 20 mm, 25 mm respectively 77,925 MHz, 77,875 MHz, 77,775 MHz, 77,625 MHz, 77,325 MHz, 76,075 MHz and the nearest frequency is 77,75 MHz, obtained in the position of 11 mm from the farthest gap. These results could be used as a reference point in the future experiment mainly in cyclotron’s hot test and fine tuner’s control system.
The effect of argon:oxygen gas ratio on the energy gap of nickel-chromium oxide thin film deposited using DC sputtering techniques
Authors: Agista T U , Aziz I , Pribadi B , Priyantoro D 
Published: February 2020

Abstract
Nickel chromium oxide (NiCrO) deposition has been carried out on a glass substrate with a variation of the Argon / oxygen (Ar:O) gas ratio using DC sputtering. The purpose of this study is to determine the effect of the Ar: O gas ratio on the energy gap of the NiCrO layer. NiCrO thin film deposition was carried out using a variation ratio of Argon gas and oxygen 60:40, 70:30, 80:20, and 90:10. To determine the phase formed was analyzed using X-Ray Diffraction (XRD). UV-Vis spectrophotometer test was carried out to determine the transmittance value (% T), then from this data, it can be used to calculate the gap energy. Based on the results of the variation of the gas ratio obtained the largest energy gap of 3.44 eV on the gas ratio variation of 80:20.
Design of rotating table control for acquiring an image in industrial gamma-ray CT prototype using Raspberry Pi 3B+ module
Authors: Shobari Ikhsan , Saputra Ryan Tirta , Handoyo Demon , Rahadi Dimas Aryo 
Published: February 2020

Abstract
The rotating table on an industrial gamma-ray CT device is used to rotate the detector consisting of a line scanner and a gamma-ray source around the test object. The process of acquiring the image is done by rotating the detector and the source 360 degrees around the object, and at a certain angle, the object projection image is captured through the line scanner. A stepper motor is used to rotate the rotating table. The rotary motion of the stepper motor is controlled using the Raspberry Pi 3B+ control module which can be accessed remotely using the TCP/IP communication protocol. As an interface to control the motion of the rotating table, a software that is created using the python programming language is used. The gear ratio between the motor and the rotating table is 23 : 161 which takes 7 full rotations on the stepper motor to produce one full rotation on the rotating table. Based on the test results, 25200 pulses input is needed to rotate the rotating table 360 degrees, while one pulse is able to move the rotating table by 0.0143 degrees.
Synthesis and characterization of photocatalist TiO2 doped with Ni for treatment of waste model from nuclear facility
Authors: Rachminisari A , Salim A , Nana A , Dimyati A 
Published: February 2020

Abstract
Synthesis and characterization of photocatalist TiO2 doped with Ni for treatment of waste model from nuclear facility. Ni doped TiO2 as photocatalyst material has been made. Addition of dopant Ni was carried out by impregnation technique. The Ni content was varied between 3, 5, 7 and 10 wt.%. The TiO2-Ni samples obtained were then characterized by X-Ray Diffractometer and SEM-EDS. The catalyst test is carried out using UV-VIS. The anatase crystal structure appears at 2θ = 25.41°, 37.89°, 48.13°, 55.14° 62.78°. The NiO crystal structure was also found at X-Ray peak 2θ = 38.8°. It obvious that addition of Ni dopants decreased significantly the TiO2 crystal main size The anatase crystal structure formed on TiO2-Ni (3 wt.%) is 84.21%. The results of SEM-EDS analysis showed the best success rate of 91.6% wt 3 wt.% Ni addition. The photocatalist material TiO2-Ni was then applied to treat the standard non-radioactive liquid waste material from BATAN nuclear facility modeled by a mixture based on methylene blue exposed with UV light with variation of time. The degradation rate during processing of methylene blue waste with TiO2-Ni (3 wt.%) using UV light was measured 0.021/hour. The longer the UV irradiation time is the greater the degradation of methylene blue. The making of TiO2 photocatalyst by adding variations of Ni dopant has been successfully caried out, with a fairly good success rate. The highest success rate is addition of Ni by 3% with a success rate of 91.6%.
Synthesis and characterization of hydroxyapatite from duck eggshell modified silver by gamma radiolysis method
Authors: Nurfiana F , Kadarwati A , Putra S 
Published: February 2020

Abstract
Crystalline hydroxyapatite (HA) prepared from duck eggshell using the precipitation method. Duck eggshell used because it has higher calcium oxide (CaO) purity than another eggshell. The amount of duck eggshell calcinated to obtain calcium precursor then dropped with phosphoric acid wisely. The hydroxyapatite result modified with a silver (HA-Ag) using gamma radiolysis reduction. Hydroxyapatite powder added with an alcoholic silver ion precursor and followed by high energy gamma irradiation. This modification is to increase the antibacterial activity of hydroxyapatite for further medical applications. The results of the bacterial inhibitory test, showed the largest antibacterial clear zone in 25 kGy irradiation dose of HA-Ag. HA and HA-Ag characterized by FTIR, XRD, SEM and EDX. All characterization result support the forming of pure hydroxyapatite and the presence of a silver particle.
Design of Gamma Irradiator Simulator Category IV Using Arduino Mega’s
Authors: Purbhadi I A , Suhendro B , Ayudya D S 
Published: February 2020

Abstract
DESIGN OF GAMMA IRRADIATOR SIMULATOR CATEGORY IV USING ARDUINO MEGA’s. Irradiation technology is increasingly developing in Indonesia. With the increase in irradiator facilities in Indonesia, it is hoped that irradiator control system technology can be applied in the construction and maintenance of irradiator facilities. This study aims to design and test the reliability of motion system irradiator facilities in category IV. The Iradiator Simulator was designed using 5 conveyors and a source motion system, to control the motion system of the iradiator facility, the Arduino Mega 2560 was used. The simulator that was made had dimensions of 550 mm × 650 mm. The simulator test results obtained the reliability coefficient of 0.62, which means that the iradiator simulator made has a high level of reliability.
Corrosion analysis of post-heat treatment and post-weld SS316 with electrokinetic reactivation and cyclic polarization method
Authors: Kartaman A M , Nurlaily E , Putri A S D , Sihotang J Cs , Kundari N A 
Published: February 2020

AbstractAustenitic stainless steel 316 has very high mechanical properties and corrosion resistance. This type of steel is widely used both in the nuclear and non-nuclear industries. In the nuclear industry, SS316 is used as a cladding material for uranium fuel due to its good corrosion and mechanical properties, and also low neutron absorption cross-section. In the Center for Nuclear Fuel Technology (PTBBN BATAN), it is used as material for the container of nuclear waste that is to be stored on Temporary Storage Installation of Spent Fuel (KHIPSB3 BATAN). SS316 is used as material for can to contain high-activity solid waste from the testing activity in Radiometallurgy Installation (IRM BATAN). The lid of the container is sealed with the GTAW welding process in order to tightly contain the solid waste. The main problem with the heat treatment and welding process of austenitic stainless steel is the occurrence of sensitization in a temperature range of 500-800°C. Therefore fully electrochemical analysis of SS316 stainless steel in various mediums has been conducted. SS 316 specimen was heat-treated to simulate the heat generated by the welding process. Sensitization analysis was conducted with qualitative and quantitative methods by EIS and EPR, and pitting corrosion resistance was by cyclic polarization method. The solution used for EIS and cyclic polarization test was 0 − 3.5% concentration of NaCl, and for EPR test was a mixture of H2SO4and KSCN. Material characterization before and after corrosion testing was microstructure examination. The result of the corrosion test showed that heat treatment on the temperature range of 500-800°C caused sensitization. The corrosion test curve result showed that a heat treatment temperature of 650°C for 1 hour had the highest activation current. The lowest Rp value for SS316 specimen post heat treatment in 675°C was 69.410 ohm. The welded SS316 specimen had a higher corrosion current than that of the unwelded specimen. The microstructure of the welded specimen showed that there was intergranular corrosion particularly in the HAZ region. The effect of NaCl concentration on the cyclic polarization test showed that the higher the NaCl concentration, the more easily the pitting corrosion. The indication of pitting corrosion occurrence was evaluated by considering the Epitand Erpvalues. The lower Epitvalue meant that pitting corrosion was more easily to occur.
Transfer factor of Radiocesium from soil to spinach plant (Amaranthus sp)
Authors: Sukmabuana Putu , Gede Pranawiditia I , Tursinah Rasito , Chussetijowati Juni 
Published: February 2020

Abstract
Transfer factor of radiocesium from soil to spinach plant (Amaranthus sp). Transfer of Cs radionuclide from andosol soil to spinach plant (Amaranthus sp), which highly consumed by Indonesian people had been studied to obtain the transfer factor value for human internal dose assessment according to soil–crop–human pathway. Spinach plants are planted on andosol soils that have been contaminated with 134Cs. The research was carried out by growing spinach plants on andosol type soil media containing 134Cs until the plants could be harvested. The number of absorbed and accumulated 134Cs by plant parts, namely, the roots, stems, leaves, and flowers, are observed every five days. The amount of 134Cs uptake accumulated by plants and 134C concentrations remaining in the soil was measured using a gamma spectrometer. Transfer factor values were determined by comparing the concentration of 134Cs accumulated by plants to their concentrations in soil media. The results of this study obtained that the transfer factor value at harvest age for consumption, i.e., 52 days was 0.527, and the highest was 6.56 when the plant was 76 days. The transfer factor value of higher than one indicates that the spinach plant is a radiocaesium accumulator.
Morphology study of SPIONs coated apoferritin using small-angle neutron/X-ray scattering and transmission electron microscopy
Authors: Patriati A , Lubis W Z , Suparno N , Soontaranoon S , Mujamilah  
Published: February 2020

AbstractThe morphology structure of super paramagnetic iron nanoparticle (Fe3O4/γ-Fe2O3) or SPIONs coated by apoferritin was studied to understand the ability of apoferritin in coating iron oxide. The system was synthesized in a solution to approach the human body’s physiological condition. Small-angle neutron and x-ray scattering (SANS and SAXS) techniques were conducted to reveal the nanostructure of the nanoparticle. The fractal structure was observed by SANS for the SPIONs itself, with the diameter of the building sphere was 2.8 nm. Meanwhile, the SAXS data suited a model of the polydisperse sphere, which assumed as the existence of coated and non-coated SPIONs apoferritin and free apoferritin itself. Transmission Electron Microscopy (TEM) data confirmed the assumption and concluded that apoferritin unable to cover all the iron oxide.
Nitrate reductase activity of black rice (oryza sativa l.) cempo ireng cultivar strain 13 and 46 as the result of plant breeding using 60Co gamma ray on drought stress variation
Authors: Putra Valian Purnama , Solichatun  , Sugiyarto  , Sutarno  
Published: February 2020

Abstract
Black Rice (Oryza sativa L.) has been developed as a functional foodstuff due to its higher content of anthocyanins and nutrients. Black rice productivity is relatively low, while current drought stress phenomena may decline crop productivity. The breeding effort with gamma-ray irradiation is done to improve the plant’s ability to be more tolerant against drought stress and increase productivity. Some researches mentioned the use of gamma-ray radiation could initiate morphological, physiological, and biochemical changes in plants. Nitrate reductase activity can be used as a method of crop yields estimation due to its positive correlation with crop productivity. The study aims to examine the nitrate reductase activity and growth responses of the M5 generation from Cempo Ireng Black Rice strain 13 and 46 results of 60Co gamma-ray irradiation compared to black rice without radiation on drought stress variation. The research was conducted with a completely random design factorial. Drought has become a factor I with 3 levels of spacious capacity (100%, 75%, and 50%). Factor II is the black rice strain (13, 46, and no radiation). The observed variables are growth parameters, nitrate reductase activity, and chlorophyll content. The data obtained were analyzed using ANOVA continued with Duncan test at a significance level of 5%. The results showed that there was a variation of growth, chlorophyll content, and nitrate reductase activities from black rice crops irradiated by gamma rays, which is also showed a different response to drought stress. The black rice strain of 46 is the rice, which more resistant to drought stress evaluated from the growth parameters, the content of chlorophyll, and its nitrate reductase activity is higher than black rice without radiation.