China is playing an increasingly important role in the International Thermonuclear Experimental Reactor (ITER) project and it is due to the long-term attention and support of the country's industry and government to controlled nuclear fusion research, Duan Xuru, a senior expert on fusion who is also a member of the National Committee of the Chinese People's Political Consultative Conference, told the Global Times.
Especially through participation in the ITER project, the world's largest "artificial sun," the level of China's research in controlled nuclear fusion has been greatly improved, and the technological level has caught up and even surpassed those of other countries in some areas, said Duan, chief expert on fusion of the China National Nuclear Corp (CNNC).

The ITER is a tokamak that can generate large-scale nuclear fusion reactions, aiming to simulate the nuclear fusion process that generates light and heat like the sun. The experiment is jointly implemented by China, the European Union, India, Japan, South Korea, Russia and the US. China officially joined the plan in 2006. Since the implementation of the plan, China has always adhered to international commitments and contributed Chinese wisdom and strength to the smooth progress of the plan.

On February 29, the ITER organization signed a contract for assembling the vacuum chamber module with China Nuclear Power Engineering Co, Ltd of CNNC. This is the second time that China has undertaken the installation task of the ITER's core equipment, contributing wisdom and strength to the progress of this project, according to the CNNC.

The assembly of the vacuum chamber module is to integrate and assemble the main large components such as the toroidal field coils, vacuum chamber, and vacuum chamber thermal shield in the assembly hall, and then lift the whole assembly into the tokamak pit. Among them, the toroidal field coils provide a toroidal strong magnetic field for confining the plasma at temperatures of over a hundred million degrees, according to Duan.

Located in the central area of the device, the vacuum chamber supports the plasma confined by the magnetic field, providing the required high-purity environment for plasma formation and maintenance. The vacuum chamber thermal shield mainly provides thermal shielding for the superconducting magnets to ensure the stable operation of the low-temperature superconducting magnets. "The assembly of the vacuum chamber module is an important milestone for the ITER project, marking that the installation of the ITER main machine has entered the final sprint stage," Duan said.

China has undertaken the manufacturing tasks of 18 procurement packages of the ITER since 2008, involving core key components such as the magnet support system, magnet feeder system, power system, glow discharge cleaning system, gas injection system, and the first wall of the reactor core that can withstand extremely high temperatures.

"China's tokamak engineering construction and related physical experiments have entered the international forefront. The engineering technology and manufacturing processes of key components of fusion reactors have made key breakthroughs, and some technological levels are leading internationally. A group of enterprises, research institutions, and universities have cultivated talents in tokamak engineering construction, fusion reactor component manufacturing, and large-scale scientific project management, accumulating experience. China's international discourse power in the field of nuclear fusion research is increasing. In the fields of material production and large equipment manufacturing, China has gradually formed advantages in foreign countries, and these advantages will provide strong technical support for the high-level development of China's controlled fusion engineering technology," Duan said.

While participating in the development of ITER, China's independently constructed and operated new generation artificial sun China Circulation-3 has also continued to improve. In 2023, the device successfully achieved high-constraint operation mode under a plasma current of 1 million amperes and was opened to global scientists.

Asking about different roles of ITER and China Circulation-3, Duan explained that ITER is an experimental reactor, and its goal is to verify the scientific and engineering feasibility of fusion reactors under conditions where the fusion gain Q is greater than 10 within 400 seconds and greater than 5 within 3,000 seconds.

Meanwhile, China Circulation III is the largest and most powerful magnetic confinement nuclear fusion large scientific experimental device in China, aiming to provide preliminary verification and solutions for key scientific and technical issues of the experimental reactor, including core plasma operation, nuclear diagnostics, tritium engineering technology, divertor high heat load control, etc, serving as an important support for China's leapfrog development in fusion energy research and development, he said.

In the future, China Circulation III will strive for higher plasma operating parameters, gradually raise the comprehensive parameters of the fusion plasma core to the level of the core, create an internationally leading combustion plasma large scientific experimental platform, support China's deep participation in ITER experiments, better digest and absorb ITER research results, and lay the foundation for China's independent design, construction, and operation of fusion pilot engineering experimental reactors, Duan noted.

In Duan's view, climate change and energy security issues have become common challenges faced by the world. Considering this, nuclear fusion energy, as a future clean, safe, and efficient energy source, is of great significance for the sustainable development of human society.

Mastering the technology of controlled nuclear fusion means that people may have access to almost unlimited clean energy in the future, and the energy crisis may be completely resolved, Duan said.

But to realize the application of nuclear fusion energy, there are still some major scientific and technological challenges, mainly including the steady-state self-sustaining burning of deuterium-tritium fusion plasma, fusion reactor materials, and tritium self-sustaining, Duan said, stressing the importance of international cooperation to promote the innovation of nuclear fusion technology.

Xi arrives in Tarbes from Paris to continue state visit to France

Last year, Chinese enterprises including major technology brands expanded their footprint on the global market. It was also the first year for upgraded versions of "Made in China" to compete in the markets of the developed economies in all aspects. 

In 2023, China's foreign trade and investment rose steadily, with a trade surplus of more than $730 billion in the first 11 months. China was the only major economy with an inflation rate lower than the central bank's 2-percent target.

In retrospect, in the fields of semiconductors, artificial intelligence, new-energy vehicles or batteries, the technological value of Chinese manufacturing was increasingly recognized globally. In the second half of the year, many Silicon Valley entrepreneurs chose to return to China, seeking cooperation with the world's largest factory, known for its high manufacturing efficiency and growing competitiveness.

In 2024, the globalization of the high-tech sector will be irreversible, and Chinese high-tech companies will continue to "go global." There will be more and more Chinese companies setting up factories in both the developed and developing economies, and concurrently, there will also be an increasing number of young Chinese entrepreneurs appearing on the international business stage.

The rapid development of the Chinese economy over the past 45 years can be attributed to the reform and opening-up policy. Maintaining a competitive advantage in the global manufacturing industry is crucial for China's industrial transformation and upgrading of the economy, as well as ensuring the stability of the yuan's exchange rate and the well-being of the public in the face of global challenges.

The development of Chinese economy demonstrates that China's goal is not to "dominate the world", but to share the dividends of its development. This explains why China's foreign policies won't follow the heels of the traditional colonial powers by bullying the weak and poor, and China's contributions have been widely recognized by countries and regions participating in the Belt and Road Initiative (BRI).

Under the long-term goal of maintaining steady and sustainable development, the Chinese economy saw a robust recovery in 2023. In addition to effectively controlling inflation, various indicators such as electricity generation, transportation of goods and passengers and retail sales all exhibited a gradual recovery, surpassing market expectations. 

The improved economic data can be attributed to the continuous implementation of policies such as poverty alleviation, the BRI and the development of high-end manufacturing. They also stem from the continuous improvement in the capital intensity of modern agriculture and manufacturing, offsetting insufficient growth momentum caused by a slowdown in the real estate sector.

Investors' expectations for the economy's future are diverging. There is a common saying in the international investment community: "optimists tend to be successful and pessimists tend to be right." China's market size and development potential are enormous, and only optimistic entrepreneurs who keep up with the times can get their due rewards.

The main battlefield of competition for Chinese companies has long expanded from first- and second-tier Chinese cities to county towns, which benefits more Chinese consumers, as brands and consumption patterns that used to only exist in Beijing, Shanghai, Guangzhou and Shenzhen are increasingly entering local towns and rural areas. 

The upgrading of the financial industry will also be an important aspect of the Chinese economy in 2024. Commercial banks such as China Agricultural Bank, Industrial and Commercial Bank of China and China Construction Bank have all lowered their deposit interest rates, which for the first time are below the benchmark interest rate set by the People's Bank of China. 

This is a new milestone in Chinese financial history. It signifies that China has transitioned from a period of relying on foreign investment during the early stages of reform and opening-up to a new stage where domestic capital is abundant.