
契忍可夫輻射 - 维基百科,自由的百科全书
一座 TRIGA反應堆 核心中發出淡淡的切连科夫輻射輝光。 愛達荷國家實驗室ATR核心發出的切连科夫輻射輝光 切连科夫辐射[註 1] (英語: Cherenkov radiation)是介質中運動的电荷速度超過該介質中 光速 時發出的一種以短 波長 為主的 電磁輻射,其特徵是藍色輝光。這種輻射是1934年由 苏联 物理學家 ...
HAWC: the High-Altitude Water Cherenkov Observatory
The water Cherenkov detectors in HAWC are corrugated steel tanks 4 meters high and 7.3 meters in diameter (see figure at left). Each tank contains a watertight bladder and four photomultiplier tubes (PMTs) which are sensitive at ultraviolet wavelengths.
Cherenkov radiation - Wikipedia
The radiation is named after the Soviet scientist Pavel Cherenkov, the 1958 Nobel Prize winner, who was the first to detect it experimentally under the supervision of Sergey Vavilov at the Lebedev Institute in 1934. Therefore, it is also known as Vavilov–Cherenkov radiation. [3] Cherenkov saw a faint bluish light around a radioactive preparation in water during experiments. His doctorate ...
Upgrading the water Cherenkov tanks for atmospheric shower ...
2017年12月21日 · A typical ground detector is an array of water tanks (for example the Pierre Auger Observatory [1]): Cherenkov light is produced directly by relativistic charged particles, and indirectly by gamma photons through Compton scattering and the pair creation within the water.
契伦科夫辐射的机理及其物理意义初探 - 知乎
2020年9月23日 · 契伦科夫辐射 (Cherenkov radiation)是介质中运动的物体速度超过光在该介质中速度时发出的一种以短波长为主的电磁辐射,其特征是蓝色辉光。
3 Cherenkov tank The Cherenkov tanks (Figure 2) with a volume of 1000 liters have a PMT detector - R5912 Hamamatsu [15] - with 8-inch diameter, typical surface area of 380 cm2 and typical gain of 1:0 107 supplied with voltage of 1500 V. NIM and VME modules are used for the acquisition and processing of the signals and feeding the PMTs voltage.
「切倫科夫輻射」是什麼?|香港天文台 (HKO)|教育資源
我們都知道光速在真空裡是速度的極限。不過,光在媒介裡﹙例如水﹚會以較低的速度傳播。在水裡,光的速度只是它在真空裡速度的75%。因此,一些物質如「高能帶電粒子」有可能在水中移動得比光快。在這種情況下,媒介中﹙例如水﹚原子的電子會受激發到更高能級繼而瞬間發出弱電磁 …
High Altitude Water Cherenkov Experiment - Wikipedia
The High Altitude Water Cherenkov Experiment or High Altitude Water Cherenkov Observatory (also known as HAWC) is a gamma-ray and cosmic ray observatory located on the flanks of the Sierra Negra volcano in the Mexican state of Puebla at an altitude of 4100 meters, at
1. Features of Water Cherenkov Detectors Water Cherenkov detectors, in the form of large volumes of ultrapure water surrounded by photomultiplier tubes (PMTs), are sensitive to the charged particles produced by interactions of core collapse supernova neutrinos in the few to few tens of MeV range. Charged particles moving faster than the speed of light in a medium produce Cherenkov photons if ...
契忍可夫輻射 - 維基百科,自由的百科全書
一座 TRIGA反應爐 核心中發出淡淡的契忍可夫輻射輝光。 愛達荷國家實驗室ATR核心發出的契忍可夫輻射輝光 契忍可夫輻射[註 1] (英語: Cherenkov radiation)是介質中運動的電荷速度超過該介質中 光速 時發出的一種以短 波長 為主的 電磁輻射,其特徵是藍色輝光。這種輻射是1934年由 蘇聯 物理學家 ...