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Thread: Large High Altitude Air Shower Observatory (LHAASO)

  1. #1
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    Large High Altitude Air Shower Observatory (LHAASO)

    Construction has started on the Large High Altitude Air Shower Observatory (LHAASO) in Haizi Mountain in Sichuan Province in southwest China. It is expected to be completed in 2020.

    http://physicsworld.com/cws/article/...ay-observatory

    LHAASO aims to detect cosmic rays over a wide range of energies from 10111018 eV using 10 Cherenkov water detectors, covering a total area of 80 000 m2, together with 12 wide-field Cherenkov telescopes. These two types of instrument, which are above ground, will spot the Cherenkov radiation emitted when a charged particle travels through a medium faster than light can travel through that medium. Below ground, LHAASO will also consist of a 1.3 km2 array of 6000 scintillation detectors that will study electrons and photons in the air showers, while an overlapping 1.3 km2 array of 1200 underground Cherenkov water tanks will detect muons.

    LHAASO is not the only facility in the world trying to study the origin of cosmic rays. The IceCube facility at the South Pole observes high-energy neutrinos, while the Pierre Auger Observatory in Argentina explores cosmic rays with energies above 1018 eV. "LHAASO will play a complementary role with existing detectors to offer a more comprehensive picture of the cosmic-ray sky," says Yifang Wang, head of the Institute of High Energy Physics (IHEP) of the Chinese Academy of Sciences.
    LHAASO is an international collaboration that includes scientists from China, France, Italy, Russia, Switzerland and Thailand. First mooted in 2008, the facility won approval from the National Development and Reform Commission of China in December 2015. Haizi Mountain was selected as the site due to its high elevation and good accessibility being only 10 km away from Yading Airport the world's highest and about 50 km from Daocheng County, which will be the base for the LHAASO team.

  2. #2
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    Aah. I was puzzled by the energy range given as "1011 - 1018 eV", because that doesn't sound wide at all, but that was only the cut and paste. It's 1011 to 1018 eV.


    Thanks for sharing!

  3. #3
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    China's Large High Altitude Air Shower Observatory (LHAASO) will be partially operational next year.

    http://news.xinhuanet.com/english/20..._136344815.htm

    "An observatory for detecting cosmic rays is being built in southwest China's Sichuan Province, and will partially go into use next year, scientists said Tuesday.
    The project, known as Large High Altitude Air Shower Observatory (LHAASO), is located in mountains of the eastern part of Qinghai-Tibet Plateau at an average altitude of 4,110 meters.
    Spanning 1.36 square kilometers, the size of 10 standard soccer fields, the LHAASO will detect cosmic rays and analyze the sources of the rays, said Cao Zhen, chief scientist of the project from the China Academy of Sciences."

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  4. #4
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    "First detector array put into use at China's new-generation cosmic ray observatory"

    http://www.xinhuanet.com/english/202..._139649157.htm

    The first detector array at the Large High-Altitude Air Shower Observatory (LHAASO), sitting 4,410 meters above sea level, has been built and put into operation in the wilderness of Daocheng, southwest China's Sichuan Province.

    According to the Institute of High Energy Physics (IHEP) of the Chinese Academy of Sciences (CAS), the water level at the No.3 pond has reached the required standard, which means the construction of the Water Cherenkov Detector Array (WCDA) has been completed.

    In the pond, water Cherenkov detectors are installed to form an array and are submerged in strictly purified water. Transparent pure water allows the detectors to clearly catch the signals generated by high-energy particles.
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  5. #5
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    Quote Originally Posted by selvaarchi View Post
    Construction has started on the Large High Altitude Air Shower Observatory (LHAASO)
    So when is AHHP(S)O?

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