21-23 May 2018
Topland | Hotel & Convention Center Phitsanulok
Asia/Bangkok timezone

Contribution List

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Prof. Sanong Ekgasit (Chulalongkorn University)
21/05/2018, 15:30
Invited Speaker
Mr Panupong Rintarak (Department of Physics, Faculty of Science, Mahidol University), Busara Pattanasiri (Department of Physics, Faculty of Liberal Arts and Science, Kasetsart University Kamphaeng Saen Campus), S. Anupong, Mrs Sumalee Ninlaphruk (Office of Atoms for Peace), Somsak Dangtip (Mahidol University)
21/05/2018, 17:30
Plasma and Ion Physics, Nuclear and Radiation Physics
Oral

Gamma irradiation has long been serving as one alternative preservation method for food and agriculture products. Initial physical interactions of gamma with biomaterials lead through radical formation, depolymerization, and molecular changes to eventual sterilization, decontamination and preservation. An effective penetration of gamma radiation homogenize the effects throughout the...

Mr Sorawich Asapha (Department of Physics, Faculty of Science and Technology, Phetchabun Rajabhat University, 83 M.11 T.Sadiang, Muang, Phetchabun 67000, Thailand), Dr Chalad Yuenyao (Department of Physics, Faculty of Science and Technology, Phetchabun Rajabhat University, 83 M.11 Sadiang sub-district, Muang, Phetchabun 67000, Thailand)
21/05/2018, 17:45
Nanoscale Physics and Nanotechnology
Poster

Abstract
High purity nano-silica xerogel was synthesized from rice straw ash that is a residue materials from agriculture. To obtain the rice straw ash for preparing of sodium silicate that is then used as silica source, pretreated rice straw was burned at 600-900 oC. Rice straw ash was reacted with 0.5 M NaOH for 3-12 h and filtrated by a no.41 filter to prepare sodium silicate. Afterwards,...

Dr L.D. Yu (Plasma and Beam Physics Research Facility, Department of Physics and Materials Science, Faculty of Science, Chiang Mai University, Chiang Mai 50200, Thailand; Thailand Center of Excellence in Physics, Commission on Higher Education, 328 Si Ayutthaya Road, Bangkok 10400, Thailand)
21/05/2018, 17:45
Plasma and Ion Physics, Nuclear and Radiation Physics
Poster

While the cross sections of heavy ion beams at energy of a few MeV and above have been measured and reported, experimental data, especially of those minor lines from uncommon materials, for lower-energy heavy ion beams around 1 MeV are lack. In this study, we used 1-MeV C-ion (83 keV/amu) PIXE (particle induced X-ray emission) to measure the X-ray production cross sections of Fe K-line, Nb, Ru...

Mr Nontaphat Sinsuntithet (Department of Physics and Materials Science, Faculty of Science, Chiang Mai University), Mr Watcharakiart Insri (Department of Physics and Materials Science, Faculty of Science, Chiang Mai University)
22/05/2018, 14:00
Atomic Physics, Quantum Physics, Molecular and Chemical Physics
Oral

Introduction of an absorption boundary to an atom guide enriches the guide’s transport properties. However, if the initial wave packet contains broad energy spectrum that includes scattering states, a complex boundary essentially changes the composition of the system's energy-eigen spectrum. Our study focuses on finding a pattern of energy spectra that governs the evolution of the system. In...

Ms Paphapin Teannava (Department of Physics, Faculty of Science and Technology, Phetchabun Rajabhat University, 83 M.11 Sadiang sub-district, Muang, Phetchabun 67000, Thailand), Dr Chalad Yuenyao (Department of Physics, Faculty of Science and Technology, Phetchabun Rajabhat University, 83 M.11 Sadiang sub-district, Muang, Phetchabun 67000, Thailand)
22/05/2018, 15:00
Material Physics and Functional Materials
Poster

Nano-silica aerogels were synthesized from sodium silicate which is obtained from the reaction of bagasse ash and NaOH. Silanes and salazane was employed to control the formation and structure of silica aerogels in this study. To initiate the modification of silica aerogel properties, 1.0 M NH4OH solution was utilized. The silica aerogel resulted from the reaction was dried under ambient...