China's Large High Altitude Air Shower Observatory (LHAASO), a key national science and technology infrastructure facility, recently found the first ultra-high-energy (UHE) cosmic accelerators in the Milky Way.
Gamma photons with 1 peta-electron-volt (PeV) of energy, the highest energy of its kind ever observed, were also detected by the facility.
The new discoveries challenge the traditional understanding of the Milky Way and are expected to turn to a new page in UHE gamma astronomy.
The 20-inch high-time-resolution microchannel plate photomultiplier tube developed by NorthNight Vision Science & Technology Research Institute Group Co., Ltd was used in the LHAASO project, greatly improving the spatial resolution of the gamma-ray measurement and expanding threshold energy detection capacity.
A general view of the LHAASO [Photo/sasac.gov.cn]
Photomultiplier tubes in the detector array [Photo/sasac.gov.cn]
The photomultiplier tube, with complete proprietary intellectual property rights, was a mark of progress in China's extensive photomultiplier tube technology due to its outstanding design, process and performance and promoted autonomous, controllable and high-quality development of the country's vacuum photoelectric detectors.
An aerial view of the LHAASO [Photo/sasac.gov.cn]
A view of the photomultiplier tube developed by NorthNight Vision Science & Technology Research Institute Group Co., Ltd [Photo/sasac.gov.cn]
(Executive editor: Hao Wen)
