our research

Researchers: Associate Professor Dr. Yap Seong Ling, Dr Lim Lian Kuang, Emeritus Professor Dr Lee Sing

​Current Postgraduates: Ngoi Siew Kien, Lim Ling Hong, Poh Hun Seng

Info A dense plasma focus (DPF) is a plasma device that produces a pulse of hot and dense plasma. The plasma produces is so hot and dense that it can emit various radiation such as X-ray and particle beams. The plasma is formed by the electromagnetic acceleration and compression. It was invented in the early 1960s by J.W. Mather and also independently by N.V. Filippov. The focus researchers in the center are working on the plasma focus system as pulsed neutron, X-ray and ion beam source for material surface modification. More recently, as a radiation source for superficial cancer therapy.

Researchers: Associate Professor Dr. Yap Seong Ling, Dr Lim Lian Kuang, Emeritus Professor Dr Wong Chiow San

​Current Postgraduate: Ngoi Siew Kien

Info. In the vacuum spark concept, a capacitor is discharged through two properly shaped electrodes, made of selected materials, in a vacuum. This high current discharge produces intense pulsed hard X-rays. The purpose is to utilize the device as an X-ray/EUV source for Next Generation Lithography.

Researchers: Associate Professor Dr. Yap Seong Ling, Dr Lim Lian Kuang, Emeritus Professor Dr Wong Chiow San

Info. A wire explosion in gas can be used for manufacturing nanostructure metal powder. It is conducted by providing a chamber filled with inert gas, feeding a metal wire into the chamber, electrically exploding and vaporizing the metal wire inside the chamber using pulsed power, and collecting the nanostructure metal powder produced that is cooled and condensed by inert gas. The interest is in applying the method for nanopowder technology.

Researchers: Associate Professor Dr. Yap Seong Ling, Dr Lim Lian Kuang, Emeritus Professor Dr Wong Chiow San

​Current Postgraduate: Ngoi Siew Kien

Info. In the vacuum spark concept, a capacitor is discharged through two properly shaped electrodes, made of selected materials, in a vacuum. This high current discharge produces intense pulsed hard X-rays. The purpose is to utilize the device as an X-ray/EUV source for Next Generation Lithography.

Researchers: Associate Professor Dr. Yap Seong Ling, Emeritus Professor Dr Wong Chiow San

Info. Dusty plasma is a plasma containing nanometer or micrometer-sized particles suspended in it. Dust particles may be charged. Dusty plasmas are interesting because the presence of particles significantly alters the charged particle equilibrium leading to different phenomena. The interest of the group is the study of plasma waves which is related to astrophysical phenomena.

Researchers: Associate Professor Dr. Yap Seong Ling, Emeritus Professor Dr Wong Chiow San,

​Current Postgraduates: Ali Akbar Khan, Nitturi Naresh Kumar

Info. Dielectric-barrier discharge (DBD) is the electrical discharge between two electrodes separated by an insulating dielectric barrier. The process normally uses high voltage alternating current, ranging from lower RF to microwave frequencies. Research interest include application as a gaseous chemical reactor for exhaust gas remediation, in material surface treatment, bacteria inactivation and cancer cell treatment.