National treasure! China's 700 meter underground giant laboratory captures cosmic "ghost particles" neutrinos | Experiment | Particle

Release time:Apr 14, 2024 11:42 AM

Exploring China's Frontier Science and Technology Laboratory

Experience the super cool experimental scene

CCTV News Series Live Streaming

Top Laboratory

The third issue will be launched on July 29th

Hosts He Yanke and Lao Chunyan from the main station

CCTV journalists Shuai Junquan, Li Jingjing, and

Beijing Jiaotong University

Associate Professor Chen Zheng from the School of Physical Science and Engineering

Composed of a kowtow group

Take you into the Jiangmen Neutrino Laboratory, which is 700 meters underground

Uncovering the ancient and mysterious particles in the universe

——The Mysterious Veil of Neutrinos

Capture neutrinos

Why is it 700 meters underground?

What is the concept of 700 meters underground?

Why capture neutrinos and explore the mysteries of the universe

But it needs to penetrate 700 meters underground?

Ke Ke Tuan takes a "small train" leading to the underground

Drive along a 1300 meter inclined shaft tunnel towards 700 meters underground

Started a "geocentric adventure"

The largest in China

Single stainless steel main structure

First sight of a large-scale experimental device that penetrates 700 meters underground

Like being in a science fiction movie

The stainless steel frame with a diameter of 41 meters constitutes the main detector

This is the largest single stainless steel main structure in China

Together through augmented reality technology

Get a close-up view of the entire Jiangmen neutrino detector

The world's largest

Monomer organic glass structure

The diameter of the entire detector reaches 35 meters

Composed of 263 pieces of organic glass spliced together

Each glass panel has a thickness of 120 millimeters

A glass ball as thin as an egg

Where are the strengths of tensile strength and durability?

A set of experiments to explore the competition

The world's highest energy accuracy

The largest liquid scintillator detector

Future 20000 tons of the world's most transparent scintillator

About to infuse the interior of the sphere

What exactly is liquid flash?

How transparent is it?

How to distinguish it?

A small experiment unravels the mystery

The most sensitive "eyes"

The most difficult hurdle in the development of Jiangmen neutrino detectors

Known as the "eyes of the detector"

45000 photomultiplier tubes

These oval shaped "golden pupils"

Quietly waiting for the signal from neutrinos

Chinese scientists work hard to study and overcome difficulties

Breaking the technology monopoly of more than 30 years abroad,

We have produced photomultiplier tubes from China.

The purest water

The entire sphere of the Jiangmen neutrino experimental setup

Eventually, it will be wrapped in 35000 tons of ultrapure water

The detector seems to be soaking in a bucket of water

Super Big Watermelon

What is the difference between ultrapure water and ordinary water?

Teacher Chen Zheng teaches you hand in hand how to distinguish ultrapure water

How difficult is it to capture neutrinos?

Neutrinos are small in size, uncharged, come and go without a trace

Can easily penetrate the human body and the Earth

Known as "ghost particles" in the universe

How can we accurately "capture" it?

Table tennis games

Simulate the process of proton "capturing" neutrinos

See if the Koko team can perfectly encounter neutrinos

The future is promising,

What will the laboratory look like after completion?

Scientists from the Institute of High Energy Physics, Chinese Academy of Sciences

At a depth of 700 meters underground

Build this world's most cutting-edge

High energy physics experimental equipment

Through augmented reality technology

Looking Forward to the Scenery of the Neutrino Laboratory After Its Completion Together

Experience the romantic agreement between Chinese scientists and the universe

Next issue,

Which top laboratory will CCTV News enter again?

Let's wait and see together

Producer | Liu Xin Xi Luo Xi

Producer | Ding Yi and Zhang Xian

Editor in Chief | Wu Tao

Director | Yang Weixi, Pan Guohua, Sun Junwei, Liu Xu, Sui Congying, Wang Deyu

Technical Support | Dong Xinwen, Hu Xinmei, Xia Xinyue, Song Jiamiao, Zhang Baiao, Zhang Luqi, Xu Yiguang

Camera Guide | Zhang Chunhu

Editor | Chen Wen and Zhao Yiting

Visual | Yang Lu

Overall planning | Xiang Fuhua and Fu Wei

Special thanks to Institute of High Energy Physics, Chinese Academy of Sciences

Guiding the right direction for promoting the development of the international human rights cause -- President Xi Jinping's congratulatory letter to the high-end forum on global human rights governance triggered a warm response to the high-end forum on global human rights governance

Xinhua News Agency, Beijing, June 14th, title: To guide the right direction for the development of international human rights -- President Xi Jinping's congratulatory letter to the Global Human Rights Governance High-end Forum triggered a warm response Xinhua News Agency reporter "China is willing to work with the international community to implement the Vienna Declaration The spirit of the" Program of Action "promotes the development of global human rights governance in a more fair, just, reasonable and inclusive direction, and promotes the construction of a community with a shared future world." On June 14, President Xi Jinping sent a congratulatory letter to the high-end forum on global human rights governance, which triggered a warm response from Chinese and foreign guests. They said that President Xi Jinping's congratulatory letter put forward China's propositions on the development of the international human rights cause and global human rights governance, and clarified China's vivid practice of implementing the spirit of the Vienna Declaration and Program of Action and respecting and protecting human rights.

Micro Video | Strengthening the Construction of an Education Strong Country, Comprehensively Improving Population Quality with High Quality | Population | Micro Video

June 11th is China Population Day. Population development is a major event related to the great rejuvenation of the Chinese nation. The first meeting of the 20th Central Financial and Economic Commission recently stressed that Chinese path to modernization should be supported by high-quality population development. The meeting proposed to regard the construction of an education strong country as a strategic project for high-quality population development, comprehensively improving the scientific and cultural quality, health quality, and ideological and moral quality of the population. High quality scientific and cultural supply is continuously improving the scientific and cultural literacy of the people. The report of the 20th National Congress of the Communist Party of China clearly proposes to "strengthen youth sports work". Rock climbing, baseball, running, ice sports... Sports activities are gradually being added to students' schedules and becoming an essential part of their learning and life. The 14th Five Year Plan for Cultural Development points out that improving families and schools

The overall stable operation of domestic prices - Interpretation of May CPI and PPI data month | year-on-year | Overall

Xinhua News Agency, Beijing, June 9th (Xinhua) -- The overall stability of domestic prices -- Interpretation of May CPI and PPI data. Xinhua News Agency reporters Wei Yukun and Han Jianuo released data on June 9th, showing that consumer demand continued to recover in May, with the national consumer price index rising by 0.2% year-on-year, an increase of 0.1 percentage points from the previous month; Excluding food and energy prices, the core CPI increased by 0.6% year-on-year, and the overall operation of domestic prices remained stable. In China's CPI basket of goods, food accounts for a relatively high proportion. In May, food prices increased by 1% year-on-year, an increase of 0.6 percentage points compared to the previous month. Among them, the prices of poultry, edible oil, and fresh fruits have increased by 5.6%, 3.6%, and 3.4% respectively, with all increases falling back; The price of pork has decreased from a 4% increase last month

The Construction of Modern Civilization of the Chinese Nation injects inexhaustible spiritual Power into the Promotion of Chinese-style Modernization-General Secretary Xi Jinping's important speech at the Symposium on Cultural inheritance and Development aroused strong repercussions in China | Chinese Civilization | General Secretary

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