Siam Physics Congress 2021 Report of Contributions https://indico.cern.ch/e/973315 Siam Physics Co … / Report of Contributions Ion Acceleration in Driven Magne … Contribution ID: 7 Type: Invited Speaker Ion Acceleration in Driven Magnetic Reconnection During High-energy–density Plasma Interaction Strongly driven magnetic reconnection occurs in astrophysical events and also in laboratory ex- periments with laser-produced plasma. We have performed 2.5D particle-in-cell simulations of collisions of two high-energy–density plasmas resulting in strongly driven magnetic reconnec- tion that demonstrates significant non-thermal ion acceleration. Such acceleration is significant only when the plasma beta is sufficiently lowthat the Alfvén speed at the reconnection inflow exceeds the thermal speed. Under these conditions, the most energetic ions are primarily accelerated by the Hall electric field in the reconnection outflow, especially at the trailing edgeof an emerging plasmoid in the outflow. Laboratory experiments in the near future should be ableto confirm these predictions and their applicability to astrophysical situations. Partially supported by grant RTA6280002 from Thailand Science Research and Innovation. Primary author: PONGKITIWANICHAKUL, Peera (Kasetsart University) Co-authors: Dr FOX, William (Department of Astrophysical Sciences, Princeton University,); Dr MALAKIT, Kittipat (Thammasat University); RUFFOLO, David; Dr LEZHNIN, Kirill (Department of Astrophysical Sciences, Princeton University); MATTEUCCI, Jack (Department of Astrophysical Sci- ences, Princeton University); Prof. BHATTACHARJEE, Amitava (Department of Astrophysical Sciences, Princeton University) Presenter: PONGKITIWANICHAKUL, Peera (Kasetsart University) Track Classification: Ion and Plasma Physics September 25, 2021 Page 1 Siam Physics Co … / Report of Contributions Environment friendly concrete ma … Contribution ID: 9 Type: Poster Environment friendly concrete made from Portland cement and aggregate replacement materials This research work investigated the properties of concrete block made from Portland cement and aggregate replacement materials. Portland cement (PC) was replaced by fly ash (FA) at 10%, 20%, 30% and sand was replaced by bottom ash (BA) at 10% by weight. Water was used at 7%byweight of total solid mass. Binder : Sand : Stone dust ratio of 1 : 5 : 6, 1 : 4 : 5 and 1 : 3.5 : 4.5 were used. Compressive strength were tested after curing in air for 28 days. The microstructure and phase characterizations of the specimens were analyzed using a scanning electron microscope and X-Ray Diffraction respectively. The results showed that compressive strength of 1 : 5 : 6 ratio was lower than others. Concrete block replaced by fly ash had lower compressive strength when amount of fly ash increased. Con- crete block had lower compressive strength when replaced sand by bottom ash. As a result, the mixes with FA as PC replacement and BA as sand replacement at the ratio of 1 : 5 : 6 did not meet the requirement of Thai industrial standard. However, concrete block with PC replaced byflyash 10%, 20% and sand replaced by bottom ash 10% of 1 : 3.5 : 4.5 ratio was higher than 1 : 5:6ratio and this ratio meet the requirement of Thai industrial standard. Primary author: Mr KAEWSAI, Boripat (Chiang Mai University) Co-author: Mr CHAIPANICH, Arnon (Chiang Mai University) Presenter: Mr KAEWSAI, Boripat (Chiang Mai University) Track Classification: Material Physics September 25, 2021 Page 2 Siam Physics Co … / Report of Contributions Magnetic and electrochemical pro … Contribution ID: 10 Type: Poster Magnetic and electrochemical properties of nickel oxide microstructures prepared by hydrothermal method Nickel oxide microstructures were succesfully synthesized by hydrothermal method. X-ray diffrac- tion (XRD), field emission scanning electron microscopy (FE-SEM) and Brunauer-Emmett-Teller (BET) isotherm were used to characterize the crystallinity, morphology, surface and porosity char- acteristics for the sample. The magnetic properties were investigated by vibrating sample mag- netometer (VSM). The sample exbibited ferromagnetic behaviour at room-temperature withthe magnetization value of ~ 160 memu/g. The electrochemical properties were examined by cyclic voltammetry (CV) and galvanostatic charge-discharge (GCD). The sample shows considerable spe- cific capacitance of 174.14 F/g at a current density of 1 A/g, the cycle stability excellent usability 76.6% after 500 cycles charge and discharge at a current density of5A/g. Primary author: BOONRAKSA, Miss.Nattarika (Mahasarakham) Co-author: Dr WONGSAPROM, kwanruthai Presenter: BOONRAKSA, Miss.Nattarika (Mahasarakham) Track Classification: Material Physics September 25, 2021 Page 3 Siam Physics Co … / Report of Contributions Effect of argon annealing method … Contribution ID: 11 Type: Poster Effect of argon annealing method on structural and ferromagnetic properties in Fe-doped SnO2 powders Nanocrystalline powders of Fe-doped SnO2 (x = 0.00, 0.01, 0.03, 0.05) were synthesized by hy- drothermal method. The powders were calcined in argon atmosphere at 600 oC for 2 h,phase transition from diamagnetic and weak ferromagnetic behavior to a ferromagnetic state. No trace and other magnetic impurity phase was detected in the samples with Fe content up to 3%. The magnetic properties of the calcined samples of Fe-doped SnO2 exhibited ferromagnetic behavior at room temperature with highest magnetization values of 22.54, 383.47 and 434.07 memu/g at 15 kOe for x = 0.01, 0.03 and 0.05, respectively. The room temperature ferromagnetism of samples originate from oxygen vacancy that occur in the argon annealing process. In particular, oxygen vacancy is a significanc role in ferromagnetic coupling corresponding to F-center interaction. Primary author: NONGKAE, Suriya (Mahasarakham) Presenter: NONGKAE, Suriya (Mahasarakham) Track Classification: Magnetic and Semiconductor Physics September 25, 2021 Page 4 Siam Physics Co … / Report of Contributions Line spacing calibration by using N … Contribution ID: 12 Type: Poster Line spacing calibration by using NIMT Line Scale Interferometer System Abstract This work aimed to develop the NIMT Line Scale Interferometer System for calibration ofline spacing for supporting several industries. The NIMT Line Scale Interferometer System calibrator was the assemble of both checked straightness of stage and the Laser Interferometer System. The straightness of stage sized 400 mm was checked by CERA Straight Master, Model SM-C1000-22, se- rial number 0500012. The measurement results of straightness in horizontal and vertical were3m and 4 m, respectively. Then, the finished assemble of the stage and the laser interferometer sys- tem was investigated for all systems by comparing the measurement result. The two artifacts for comparing measurement result were Working Standard Scale 300 mm trademark Mitutoyo, serial number 102906 and Reading Scale 300 mm trademark Nikon, serial number 4108. The two refer- ence measurement values were obtained based on the 2 different types of calibrators, the Line Scale Interferometer System and the 3D CNC Vision Measuring Machine, respectively. The results of comparison measurement between the NIMT Line Scale Interferometer System and the Line Scale Interferometer System showed the maximum EN ratio at 0.89 at nominal value 90 mm and mini- mum EN ratio at 0.62 at nominal 180 mm. While the results of comparison measurement between the NIMT Line Scale Interferometer System and the 3D CNC Vision Measuring Machine showed maximum EN ratio at 0.39 at nominal value 120 mm and minimum EN ratio at 0.10 at nominal 280 mm. Even though the value of En ratio at maximum was relatively high value, the capability of the NIMT Line Scale Interferometer System is well enough to support various industries. Keywords line spacing; calibrator; artifact; En ratio Primary authors: Mr HONGAROMKIJ, Yuttana (Dimension Metrology Department, National In- stitute of Metrology (Thailand)); Mr KERDKANKARN, Surasak (Dimension Metrology Department, National Institute of Metrology (Thailand)) Presenter: Mr KERDKANKARN, Surasak (Dimension Metrology Department, National Institute of Metrology (Thailand)) Track Classification: Instrumentation, Metrology and Standards September 25, 2021 Page 5 Siam Physics Co … / Report of Contributions The facile one-step hydrothermal … Contribution ID: 13 Type: Poster The facile one-step hydrothermal method for the preparation of MnO2 nanoparticles: Structural and electrochemical properties MnO2 nanoparticles were synthesized by the facile one-step hydrothermal method. The structural and morphological properties of the samples were investigated by X-ray diffraction (XRD) and field emission scanning electron microscopy (FE-SEM). Brunauer-Emmett-Teller (BET) wasused to study the surface area and pore structure of MnO2 nanoparticles. The XRD results confirmed the formation of pure phase MnO2 with orthorhombic crystal structure. FE-SEM analysis revealed the combination of massively small spherical particles with average particle size 54.8 nm. The electrochemical performance of MnO2 nanoparticles was evaluated using cyclic voltammetry (CV) and galvanostatic charge-discharge (GCD). The electrochemical results showed that the MnO2 nanoparticles delivered the specific capacitance of 200.83 F/g at a current density of 1A/g withthe rate capability of 30% after 500 cycles charge and discharge test at a current density of5A/g. Primary authors: Dr WONGSAPROM, kwanruthai (Mahasarakham university);