Mega-projects of science research (MPSR) projects
are referred to the projects of large-sized (or large
quantity of investment needed),modernized key instruments
and equipments needed in the process of scientific research.
The are not only necessary conditions for multi-disciplines
to make major break-throughs, but also can often promote the
development of other disciplines and engineering
technologies. MPSRs are often assembled crack research teams
to form the bases of talent training. Because the
construction of those projects represents high technical
level, high degree of difficulty and large quantity of
investment, they become an important sign of the national
strength in science and technology.
During the
Seventh Five-year Plan period, China constructed ten MPSRs
which played a very good role in the performance of the
national scientific strength and in the performance of high
level research activities, and accumulated experiences for
the construction of MPSRs, including:
1. Raised
scientific research in China to a higher level and promoted
the development of high technologies of related disciplines
such as machinery, electronics and optics;
2.
Brought up a high level, crack scientific research team
covering design, construction, operation and management and
became bases for the training of high level professionals in
China;
3. Worked out a batch of international
first-rate scientific research achievements, in which
accurate determination of quality of –lepton corrected
7.2 Mev of shift of -lepton quality and played a key role in
the solution of the universality issue of lepton; the
establishment of solar magnetic field telescope made China
possess the most advanced equipment acknowledged in the
world in the world in the field; and the Lanzhou heavy ion
accelerator was used to synthesize heavy particle-rich new
nuclides such as Hg-208 for the first time in the
world.
During the Ninth Five-year Plan period,
the state will implement in a rolling manner several major
scientific engineering projects based on in-depth study and
widespread consultation of opinions of various circles,
constructing one only when the conditions have become
matured, in the fields of physics, astronomy, life science,
geoscience, etc. that are of important scientific
significance and can play an important role and inspire the
people.
I. PRINCIPLES AND METHODS TO DETERMINE
MPSRs
The determination and construction of
MPSRs should follow and embody the principle "Grasp key
points and catch up the advanced world level on the
selective basis". In order to ensure the rationality of
the determination of MPSRs, special attention must be paid
to detailed planning, adequate demonstration and careful
selection.
The basic principles for the
determination of MPSRs are that the projects selected should
have significant impacts on the development of the national
economy or science and technology; need an investment
research; can retain the advanced international level in a
period after completion or have the possibility of making
China a new force in the field; and the design should have
creativity.
In the performance of the
determination the following should be
achieved:
1. The state makes detailed planning
and a good level design, based on that, MPSRs are selected
so as to really achieve important breakthroughs of
scientific research and promote the rapid development of
related disciplines;
2. Adequate and accurate
scientific demonstration is carried out. In-depth study and
widespread consultation of opinions of all circles are made
and special attention is paid to the opinions of scientists
who hold different or even opposing
opinions;
3. The principle of careful selection
is insisted on. MPSRs all represent large investment in
science. Careful selection should be made according to the
actual situation of financial capacity and economic
development of the country. The governmental support is key
to the implementation.
II. THE FIRST BATCH OF
PROJECTS STARTED AS APPROVED BY THE STATE
After full demonstration by experts, the first
batch of MPSRs have started as approved by the State
steering committee for science and Technology and have been
included in the national plan for capital construction and
hence gained support.
1. The second phase
project of the national synchronous radiation
laboratory
(1) scientific
purposes
The first phase project of the
National Synchronous radiation laboratory (NSRL) passed the
completion examination and acceptance by the state in Dec.
1991. Its successful operation has yielded a batch of
important achievements of application of synchronous
radiation. Since it was opened to domestic and foreign
users, the number of users who ask to make experiments with
radiation light has been increasing and so has the
requirement for light source.
Therefore, it is
pressing to add new light beam experiment stations and
improve the performance of light source. The main purposes
of the second phase project of NSRL are to raise the
brightness and stability of light source to a large extent
and add new light beam lines and experiment stations so as
for NSRL to practically meet the needs of scientific and
technological development for synchronous radiation light
source around year 2000.
(2)
Features
The main contents of the second phase
project are to add 21light beam lines and 22experiment
stations; construct the two insertion elements of undulators
and free electron laser, provide monochromatic tunable
coherent radiation, improve light sources to realize high
brightness operation.
The features of the
project are to continuously improve and enhance the
performance of light source and retain the international
advanced level while fully using the capacity out studies of
application of synchronous radiation; and to newly build
experimental stations of advanced technologies, with the
Chinese characteristics or created by Chinese, most urgently
needed by users.
2. Large Celestial area,
Multi-Objective, Optical Fiber Spectrum Telescope
(LAMOST)
(1) Scientific
purposes
The viewing fields of existing
large-sized telescopes are too small, usually less than one
square degree, but the celestial areas to be explored
measure dozens of thousands of square degrees to be explored
measure dozens of thousands of square degrees. Therefore, to
enlarge the viewing field of large-sized telescope becomes
key to the development of "multiple optical fiber
spectrum metering "in the current phase. LAMOST
realizes "large aperture with large viewing
field", a goal that has long been considered a
difficult issue for astronomical telescope. The effective
clear aperture of LAMOST is 4m, the focal distance 20m(F=5),
the viewing field reaches 21square degrees, the celestial
area covered is more than 20000 square degrees (over one
half of the whole celestial sphere). The plan for LAMOST has
caused intense response among international colleagues.
After completion, it will first be installed at the
existing, the observed limit integral magnitude of galaxy
metering will be 20. M7 and the observed magnitude of fixed
stars 21. M0; the number of optical fibers used at the same
time will be up to 4000 so as to enable china hold an
important superiority in astronomical exploration in the
transitional period between the current and next
centuries.
(2) Features
The main
features of LAMOST include:
1 The focal
distance is as long as 20m, thus enabling the design of
large viewing field of 21 square degrees that is difficult
for common 4m telescopes. The long focal distance and large
viewing field enable the number of optical fibers to be
inserted to reach more than 4000;
2 The key
technology for the acquirement of large viewing field is the
elimination of spherical aberration. In the LAMOST system,
the reflector as sums tracing and the active optical
technology is used to control the "non-spherical"
shape of the reflector and real time correction of spherical
aberration is made. This application of the active optical
technology is initiative for astronomical instruments.
Experiments have shown that this method has good
effects.
3. Observation Network for Crustal
movement in China
(1) Scientific purposes
1 Establish the four-dimensional image and
stressing status model of crustal movement of mainland
China. Hence promoting the study of causes of seism,
cresting new thinking and new methods for the zoning of
seismic intensity and providing a more scientific and
important basis for the medium-long term forecast of
seism.
2 Develop quantified explanation and
carry out studies of tectonic physics of China's important
modern tectonic activities.
3 Work out results
of modern movement of mainland China relative to adjacent
plates.
4 Provide services for the refinement
of China's geoldal surface, study of unification of the
national coordinate system, regional geodetic surveying and
engineering construction.
(2)
Features
1 establish a dynamic monitoring
system for space geodetic surveying of mainland china,
mainly including.
A national (including Taiwan,
Hong Kong and Macao) GPS monitoring network composed of 80
monitoring stations so as to make each sub-plate and mass
have at least three GPS monitoring stations;
B
A high precision gravity network composed of 20-30gravity
points, including 10 absolute gravity points;
C
Newly developed synthetic aperture radar, micro-wave
radiation remote sensing and other satellite electromagnetic
wave remote sensing technologies as supplement for a small
number of area to study the displacement, stain and change
of materials in those areas.
D A computer
information processing system, which integrates database and
database management technologies, temporal and spatial data
processing technologies and computer graphic technologies
and realizes accelerated circulation and application of
observation data of various kinds.
2 Establish
a monitoring network for space geodetic surveying (mainly
GPS and individual gravity) in relation to surrounding and
neighboring regions.
4. Meridian Chain for the
Ground Comprehensive Monitoring of Space Environment of East
Hemisphere-Meridian Engineering Project
(1)
Scientific purposes
The Meridian Engineering
Project is referred to the plan to establish a comprehensive
ground monitoring chain of multiple means for the
solar-terrestrial space environment, starting from Mohe in
the northernmost part of China, extending southward through
Beijing and Wuhan and reaching Hainan, and further extending
to the Zhongshan station at the south pole. This chain of
stations is called meridian chain for
short.
The engineering purposes of the project
are to form a unified comprehensive monitoring system
gradually from the scattered space environment monitoring
stations and means in China by conducting unified, complete
meridian monitoring chain around the earth through
international monitoring chain around the earth through
international cooperation.
The scientific
purposes of the project are to take he meridian chain as the
means to develop the space environment global model with the
Chinese characteristics and promote the development of basic
disciplines such as space physics by acquiring perceptual
knowledge with the Meridian chan and proceeding from
revealing the regional characters of the space environment
of china.
The application purposes of the
project are to provide high level services for the study,
forecast and assessment of the space activities, production
activities and eco-environment of china, make contribution
to the formation of the discipline of "Space Weather
"in the world, give play to the leading function of
China in east Asia and make China enter the advanced
international rank in the 21st century.
(2)
Features
The most outstanding feature of the
meridian chain is that it will finally constitute the first
complete space environment monitoring chain around the globe
in the world, which has never occurred in the history of
space surveying and will be difficult to be built again,
Therefore, the meridian Chain will probably hold an
international advanced position for quite a long period. The
second feature of the meridian chain is that it has the
regional characters of china, is suitable for the studies of
space and geophysics for the territorial space and territory
and the results cap directly serve the space activities of
china. The third feature is the high comprehensiveness,
tight organization, integration of observation, research and
forecast and integrated operation of radio, geomagnetism,
optics, cosmic ray, rocket, balloon, etc..
5.
HT-7U Superconducting Tokamak Fusion Experimental Equipment
(1) Scientific purposes
Since
year 1992 deuterium-deuterium discharge has been made
successfully on the two worldwide largest Tokamak
magnetically confined fusion experimental equipments, Europe
JET and US TFTR, hence demonstrating the scientific
feasibility of controlled thermonuclear fusion. Based on
that, engineering design of an international engineering
experimental reactor for thermonuclear fusion (ITER) is
being made and the reactor will be completed in year 2008,
with 1500Mw of power output. Nevertheless, and economical
commercial reactor must be highly effective, compact and
realize stable operation. Therefore, the realization of the
so-called advanced Tokamak operation mode through effective
heating and improved confinement under stable operational
conditions is a frontier subject in the fusion research in
the world. There is still no large-sized superconduction
Tokamak of none-circular section in the world at present and
will only by a few in year 2000.
HT-7U is
none-circular section superconducting todamai. The
scientific purpose of building such an equipment is to
realize stable operation and carry out experiments on
heating and confinement improvement under the Tokamak
advanced operation and finally realize the Tokamk advanced
operational mode. The construction of the project will make
the fusion research in China enter the frontier in the world
around year 2000.
(2) Features
1.
HT-7U is of none-circular section. The divertor
configuration can control boundary; the shaping field can
flexibly control plasma configuration; high power wave
heating and wave drive are combined with bullet feeding and
wave drive are combined with bullet feeding and feedback
control to control current , electron density, electron
temperature and ion temperature section and probe into the
physical basis of advanced operational mode.
2
The whole system is formed by upgrading the HT-7
superconducting Tokamak experimental system, hence only a
small amount of investment is needed for improvement to meet
the needs by HT-7U.
6. Implementation of the
First Continental Well drilling and scientific
research
(1) Scientific
purposes
Continental well drilling is an
important frontier subject of the modern geoscience. In this
project the first continental well will be installed in the
Dabie-Jiaonan area with the following scientific
purposes;
Understand the cause, preservation
and folding mechanisms of the superhigh pressure
metamorphism zone of the largest scale in the world
developed in the area and enrich the geoscientific theory on
superhigh pressure metamorphism
function.
Understand the formation and
evolution of paleocollision type orogenic zone and deep
geologic functions type orogenic zone and improve the
geoscientific theory on orogenic
functions.
Understand the ongoing geologic
functions in the area and provide the basis for the solution
of continental dynamic issues and provide the solution of
continental dynamic issues and for resource utilization and
environmental hazard reduction.
(2) Contents
and features
Outline of the engineering
project
The first continental well of china
will be installed in the Dabie-Jiaonan area with 5,000 m of
design well depth and 152m of the final diameter and the
implementation will last 5-6years in three
phases;
Phase1 preparation before drilling
2-3years
Phase2 construction,
1-2years
Phase 3 comprehensive study of the
results, 2years, in which new data of various kinds will be
comprehensively studied, the experiences and lessons from
the construction will be summarized so as to make
preparation for the implementation of china in the next
century.
Features of the
project
Directly observe and reveal geologic
phenomena and geologic functions at different depths below
surface with the means of well drilling and solve the
important issues of earth surface and geology and
geoscientific issues that cannot solved with common drilling
engineering.
Its features include carrying out
study in the process of drilling in the area of crystalline
rocks, total fixed position extraction of core and samples
of various kinds (including solid, liquid and gas samples),
omnibearing logging and automatic control of drilling
parameters with computers, etc..
7. Cooling
Storage Ring of Lanzhou Heavy Ion
Accelerator
(1) Scientific
purposes
The Lanzhou heavy ion accelerator
(HIRFL) has yielded a batch of research achievements of
advanced international level, such as synthesis of heavy
neutron-rich new nuclide Hg-208, etc. for the first time in
the world.
The scientific purposes of adding
the multi-purpose heavy ion cooling storage ring (csr)to
HIRFL are:
1 Study of radioactive secondary
beam (RIB) physics: use the radioactive beam current of high
current intensity and high quality of CSR and isomeric beam
current and polarization beam current to carryout synthesis
and study of nucleus;
2 study of quality of
nuclear material under the conditions of high temperature
and high density: use the stable nucleus and radioactive
nucleus beams from low energy to 900MeV/u to collide with
target nucleus, heat and compress nuclear materials to
create conditions of nuclear of high temperature and high
density for the studies of state and the mutual impact
between neutron and hadron of nuclear
material;
3 Study of physics of highly ionized
atoms: the high-resolution and highly ionized heavy ion beam
and high-density electronic current from CSR provide the
only possible experimental conditions for the accurate study
of mutual impacts between highly ionized heavy ion and the
energy level fine structure of inner shell of highly ionized
heavy ion .
4 Study of synthesis of super heavy
elements: the high intensity neutron-rich secondary beam
current of the same N/Z value (1.6-1.7) as that of super
heavy nucleus and the (A,Z) direct identification method of
CSR provide favorable conditions for the study of
"super heavy islands".
5 Uses by
intersection disciplines :1 in the study of astrophysics the
low-moderate energy neutron-rich and proton-rich beams are
used to study the creation, evolution, origin of energy,
process of nuclear synthesis, distribution of quality
abundance comic age, etc.;2 heavy ion beam can be used to
cure cancers by usr of the high current intensity heavy ion
beam and RIB beam from CSR that can penetrate any part of
human body and can cure tumors in human body very
effectively under the premise of minimum damage to other
parts of human body .
(2)
Features
High counting rate: the primary and
secondary beams are used in a circle so as to raise RIB
current intensity and experimental counting
rate.
Quasi- continuous beam: when the beam
current hits the internal target in circles in the
experimental ring, the main ring periodically inserts beam
currents into the experimental ring so that quasi-continuous
beam currents into the experimental ring so that
quasi-continuous beams are produced in the experimental ring
and relatively thick internal targets can be used to get
high experimental brightness.
8. The Third
Generation Synchronous Radiation light
source
(1) scientific Purposes
The
two sets of synchronous radiation light sources built on
mainland china in 1980s have the problems of low light
intensity, short machine hours, limitation to the promotion
of performance, etc., as limited by the high energy physical
experiments, and will not be able to meet the needs by more
research projects for high brightness hard X ray and
extremely high brightness soft X ray.
The third
generation synchronous radiation light source is an
equipment of high performance, medium scale and entire wave
-band. The light intensity in the division of band of soft X
ray is 5-6 magnitudes higher than that of the existing level
in China; the light intensity in the division of band of
hard x ray is over 3 magnitudes higher than that of the
equipment in Beijing; and other performances are also
promoted greatly such as high temporal resolution ratio,
which will made possible the study of structure, components,
dynamic characteristics of structure, components, dynamic
characteristics of materials under the micro-area, normal
position, dynamic, transient and extreme conditions so as to
provide new methods and means for the studies of
international frontier level in multiple fields that cannot
be carried out in china at present because of shortage of
necessary conditions.
(2) Features
The third generation synchronous radiation
light source, or China Light Source (CLS), is composed of
the three major portions of injector, storage ring and
synchronous radiation experimental equipment. The total area
covered is 15,000-20,000m2. The injector is of total-energy
injection. The electronic energy of the storage ring is
2.3-2.5 GeV, the permeter is about 240m and the storage ring
is components, correctors, auxiliary components, etc. The
synchronous radiation experimental equipment is composed of
light lead-out components, light beam lines and experimental
stations. It is planned to build 15 light beam lines and
corresponding experimental stations in the first phase of
the project.
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