FRONTIERS OF PHYSICS 2017 - ASEAN Workshop on 30 AUGUST - NTU
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Institute of Advanced Studies
ASEAN Workshop on
FRONTIERS OF
PHYSICS 2017
in partnership with CERN
30 AUGUST
NANYANG EXECUTIVE CENTRE, NTU
Image: CMS/CERN
Contents Organising Committee ……………………… 3 Programme ……………………… 4 Abstracts of Speakers ……………………… 6
Organising Committee
Chairman
Kok Khoo Phua
Institute of Advanced Studies,
Nanyang Technological University
Members
Ngee-Pong Chang
The City College of New York;
Institute of Advanced Studies,
Nanyang Technological University
Leong Chuan Kwek
Institute of Advanced Studies,
Nanyang Technological University
Hwee Boon Low
Institute of Advanced Studies,
Nanyang Technological University
Rajdeep Singh Rawat
National Institute of Education
Bernard Ricardo
NUS High School of Mathematics and Science
3
ASEAN Federation of Physics Societies - ASEAN Workshop on
Frontiers of Physics 2017, in partnership with CERN
30 Aug 2017, Wednesday
Nanyang Executive Centre, Auditorium
30 min per talk + 10 min Q&A
8.00am - 9.00am Registration
Welcome Addresses
9.00am - 9.10am - Kok Khoo Phua (Director, IAS)
9.10am - 9.20am - Emmanuel Tsesmelis (CERN)
9.20am - 9.30am Opening Remarks by Guaning Su (President Emeritus, NTU)
Session Chaired by: Kok Khoo Phua
9.30am - 10.10am Emmanuel Tsesmelis
CERN
Future Particle Accelerators at the High Energy Frontier
10.10am -10.50am Yifang Wang
Institute of High Energy Physics, CAS
Particle and Astroparticle Physics in China
10.50am - 11.20am Group Photo and Coffee Break
Session Chaired by: Shuyan Xu
11.20am - 12.00pm Di Li
National Astronomical Observatories, CAS
The Waking Giant and its Potential in Astrophysics
12.00pm -12.40pm Albert De Roeck
CERN
Experiments at the Large Hadron Collider
12.40pm - 1.30pm Lunch
4
ASEAN Federation of Physics Societies - ASEAN Workshop on
Frontiers of Physics, in partnership with CERN
30 Aug 2017, Wednesday
Nanyang Executive Centre, Auditorium
Session Chaired by: Pinaki Sengupta
1.30pm - 2.10pm Shangjr Gwo
National Synchrotron Radiation Research Centre, Taiwan
Taiwan Photon Source: Status and Research Opportunities
2.10pm - 2.50pm Khong-Wei Ang
National Cancer Centre Singapore
National Cancer Centre Singapore & Proton Therapy
2.50pm - 3.20pm Coffee Break
Session Chaired by: Chorng Haur Sow
3.20pm - 4.00pm John Ellis
King’s College London
Particle Physics Today, Tomorrow, and Beyond
4.00pm - 4.40pm Ngee-Pong Chang
The City College of New York
Looking to the Frontiers of Physics
4.40pm - 5.20pm Shuyan Xu
National Institute of Education, NTU
Solar Electric Propulsion Engines for Space Mission at
Plasma Sources and Application Centre, NTU
5.20pm - 5.30pm Closing
6.00pm - 8.00pm Buffet dinner at Function Hall 1, Level 3
5
Abstracts of Speakers 6
Mr Khong-Wei Ang
Medical Physicist, National Cancer Centre Singapore
Email: ang.khong.wei@nccs.com.sg
National Cancer Centre Singapore and Proton Therapy
Abstract
National Cancer Centre Singapore has a long history in providing comprehensive cancer
care in Singapore and ASEAN. In 2021, it will cross another milestone with the addition
of a Proton Therapy Centre with 4 full rotating gantries, to complement its current
treatment modalities using high energy X-ray photons.
Proton therapy is a form of particle therapy that is gaining wide prominence globally.
Since the first hospital based centre opened in 1991, there are now about 35 centres in
North America, Europe, Asia and Africa.
The benefit of proton therapy lies in its burst of energy release at the end of its path,
thereby giving no dose to healthy tissues beyond its path. This physical characteristic
allows for a degree of dose conformation to tumour bearing tissue not obtained with X-ray
therapy. Side-effects and, in particular, long-term adverse effects can be significantly
controlled.
While proton therapy holds great promises, there are challenges. Practitioners must be
mindful of the uncertainties involved. These could be limitations in systems, patient
specific changes, or simply, barriers imposed by nature itself. Over the years, numerous
improvements and evaluation tools have been developed within the Medical Physics
community, and among the engineers within vendors in proton therapy. This talk provides
an overview of the above. As medicine and biology advances, physicists once again find
themselves playing the role of gate-keepers of technology.
7
Prof Ngee-Pong Chang
Senior Fellow, Institute of Advanced Studies,
Nanyang Technological University;
Professor, The City College of New York
Email: nchang@ccny.cuny.edu
Looking to the Frontiers of Physics
Abstract
With the discovery of a light Higgs at 125 GeV, the door is opened to a search for more
siblings of the fundamental Higgs. The Standard Model (SM) stands on one lonesome
Higgs field, and relies on a complex 3 x 3 Yukawa coupling matrix to distinguish
between the many generations of fermion masses. In the Extended Standard Model
(ESM), we transfer the complexity of the Yukawa coupling matrix to a larger family of
Higgs. It is an extension of the 2HDM. The larger family respects and maintains the
hierarchy of masses between the generations.
8
Prof Albert De Roeck
Convener of the Higgs search physics group, CERN
Email: deroeck@mail.cern.ch
Experiments at the Large Hadron Collider
Abstract
We will make a tour of the experiments in operation and planned at the Large Hadron
Collider (LHC) at CERN, Geneva, Switzerland. The LHC started its first physics run in
2010 and an overview will be given of some of the key results obtained since then,
notably the discovery of a new kind of particle, the Higgs boson. The present focus of
most of the LHC experiments is on the search for physics beyond the so called
Standard Model of particle physics, with targets such as the search for supersymmetry
in Nature, for special types of new quarks, and for dark matter particles. To cover the
full potential of the LHC, significant upgrades of the existing experiments are being
prepared, and some additional - typically small-size - experiments are presently under
discussion in order to extend the search capabilities at the LHC in the coming years.
9
Prof John Ellis
James Clerk Maxwell Professor of Theoretical Physics,
King’s College London and Visiting Scientist, CERN
Email: John.Ellis@cern.ch
Particle Physics Today, Tomorrow, and Beyond
Abstract
The Standard Model of particle physics describes all the visible matter in the Universe, but
does not explain the origin of matter or the nature of the dark matter that dominates the
Universe. Experiments at the Large Hadron Collider at CERN are testing theories that could
answer these questions, and setting the agenda for future experiments at particle
accelerators.
10Prof Shangjr Gwo
Director, National Synchrotron Radiation Research
Center (NSRRC), Hsinchu, Taiwan
Email: gwo@nsrrc.org.tw
Taiwan Photon Source: Status and Research Opportunities
Abstract
Recently, there are multiple construction and upgrade plans for state-of the-art synchrotron light
sources around the globe. These light sources are expected to offer great opportunities for
frontier scientific research in decades to come. As an example of these developments, I will
focus on a newly inaugurated, low-emittance 3 GeV synchrotron light source, the Taiwan
Photon Source (TPS). The TPS photon source was constructed by NSRRC with a storage ring
circumference of 518 m and it is composed of 24 double-bend achromatic (DBA) cells
connected by six 12-m straight sections and eighteen 7-m straight sections. The natural
emittance of the TPS is 1.6 nm·rad with a small dispersion in the straight sections. In phase-I
operation, the TPS uses two sets of KEK-B type superconducting RF cavities to achieve a
design goal of 500-mA electron current in a top-up injection mode. Seven phase-I beamlines
aim for the forefront of research to cover the diverse photon sciences in a photon energy range
from soft to hard X-rays. These beamlines are optimized for protein micro-crystallography, low-
energy excitations of novel materials with atomic specificity, spectroscopy and diffraction on the
submicron and nanometer scales, scattering of coherent X-rays, and scanning nanoprobe
studies that will resolve structures with resolutions on the nanoscale. All phase-I beamlines will
be available to users in 2017. In this talk, I will present the scientific activities from the TPS
phase-I operation. Particularly, we will discuss results of high-resolution X-ray powder
diffraction, X-ray nanodiffraction and coherent diffraction including ptychography, followed by
an overview of future beamline plan.
11Prof Di Li
Principal Investigator, National Astronomical Observatories,
Chinese Academy of Sciences
Email: dili@nao.cas.cn
The Waking Giant and its Potential in Astrophysics
Abstract
The large single-dish radio telescope, Five-hundred-meter Aperture Spherical radio
Telescope (FAST), has seen its first light and currently been commissioned. Its collecting
area rivals that of the Square Kilometre Array -1 and is expected to be better for extended
emission, such as for probing the cosmic web. I have proposed a unique commensal
survey mode to cover the norther sky with FAST in drift-scan mode, achieving the best
sensitivity in imaging hydrogen in the Milky Way, finding HI galaxies, discovering neutron
stars, and searching for transient signals, simultaneously. Such a survey is expected to
detect hundreds of thousands of galaxies, more than 10 billion voxels in HI imaging, about
one thousand pulsars, and a few tens of Fast Radio Bursts. I will introduce our efforts in
implementing such an unprecedented capability and its potential impact on astrophysics.
12Prof Emmanuel Tsesmelis
Head of Associate Member and Non-Member State
Relations, CERN International Relations
Email: Emmanuel.Tsesmelis@cern.ch
Future Particle Accelerators at the High Energy Frontier
Abstract
This paper presents the scientific plans for the Large Hadron Collider (LHC) and outlines
options for high-energy colliders around the world at the energy frontier for the years to
come. The immediate plans of the world scientific community include the exploitation of the
LHC at its nominal luminosity and energy as well as upgrades to the LHC and its injectors,
in line with the highest-priority item of the European Strategy for Particle Physics and with
several national roadmaps. Attention is also developing on new emerging and truly global
projects beyond 2035, i.e. beyond the lifetime of the LHC and its luminosity upgrade. These
initiatives include the launch of the Future Circular Collider (FCC) study, including the option
for a Higher-Energy LHC (HE-LHC). Options for future accelerators at the high-energy
frontier also include a linear electron-positron collider, based on the technology being
developed by the Compact Linear Collider (CLIC) and by the International Linear Collider
(ILC). Moreover, studies have also been launched for a possible Circular Electron Positron
Collider (CEPC), which could be later upgraded to a high energy proton-proton collider with
a broader physics potential. This paper describes the future directions, all of which have a
unique value to add to experimental particle physics, and concludes by outlining key
messages for the way forward.
13Prof Shuyan Xu
Principal Investigator, Plasma Sources and Applications
Centre, National Institute of Education; Institute of Advanced
Studies, Nanyang Technological University
Email: shuyan@ntu.edu.sg
Solar Electric Propulsion Engines for Space Mission at Plasma
Sources and Application Centre, NTU
Abstract
Solar Electric propulsion engines are the heart and pivotal sub-system of spacecraft and
satellite systems. Further exploration of Moon, manned Mars exploration, sending long-
living probes to Jupiter and Saturn, comets, asteroids and deep space, and much more
intense usage of near-Earth space for the benefit of the mankind – for advanced
communication, global internet access, precise weather prediction and many other
practical aims. All these tasks require efficient, reliable, robust control systems capable of
controlling the spacecraft velocity vector, as well as orientation and location in space with
the maximum possible mass and energy efficiency of the propulsion devices (thrusters).
They should work in adverse space conditions (low and high temperatures and extremely
high rates of temperature change, vacuum, radiation, possible attack of high-speed dust
particles) for long time reaching years, with very high system fault tolerance.
This talk presents the development of solar electric propulsion engines at the Plasma
Sources and Applications Centre/ Space and Propulsion Center Singapore (PSAC-SPCS),
NIE. Our team at PSAC-SPCS, NIE is focused on the development, commissioning,
optimization and operation of two types of highly distinctive space propulsion systems: a
miniaturized Hall-thruster for cube- and nano-sats propulsion, and a radio frequency
rotating magnetic field driven Gradually-Expanded-Rotamak (GER) electromagnetic
thruster. Conceptualization, physical understanding and modelling, engineering
development and performance characterization will be discussed in terms of steady state
current drive, compact torus formation, thruster efficiency, plume configuration and ion
flux and energy. The supporting technologies, including Space Environment Simulation
Facility; Thruster Performance Measurement System; in situ Plasma Diagnostics System
will also be briefly discussed.
14Prof Yifang Wang
Director, Institute of High Energy Physics,
Chinese Academy of Sciences
Email: yfwang@ihep.ac.cn
Particle and Astroparticle Physics in China
Abstract
Experimental particle and astroparticle physics in China had been growing dramatically
in last decades, thanks to the continuous economic growth over 30 years. There are a
number of successful projects with significant impacts to physics and the world, and a
lot more are now under construction or planning. They are all international projects and
open to the world. We welcome participations from all countries, especially those from
Asia.
15The Association of South-East Asian Nations (ASEAN) celebrates its Golden Jubilee (50 years) of formation this August and as part of the celebrations, the idea of forming a Federation of Physics Societies (AFPS) to forge closer ties among the ASEAN nations in Physics and the sciences came to fruition. In conjunction with the ASEAN meeting on 29 August 2017, IAS is pleased to organise a one-day ASEAN Workshop on Frontiers of Physics, in partnership with CERN, on 30 August 2017 to expose young researchers in ASEAN to developments in their fields and related sciences. Institute of Advanced Studies Nanyang Technological University Nanyang Executive Centre 60 Nanyang View #04-09 Singapore 639673 Tel: (65) 6790 6491, 6592 1880 Fax: (65) 6794 4941 Website: http://www.ntu.edu.sg/ias
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