semiconductors have a "gap" thats very easy for electrons to jump across and create a "false" signal, resulting in noise. lowering the temperature decreases the probability for thermal excitation so you're much more likely to be reading the actual gamma ray signals you want
.#zZz#.⚡⬆️⬇️💀☢☣ДЛЯ 60Co#💀⚡🔥 - 1,5МeV/1,8МeV???!.ЭТО ВООБЩЕ - НИЧЕГО💀⚡🔥😂🤣😂🤣😂🤣😂🤣😂🤣😂🤣😂🤣😂😂ТАК И ДЛЯ УРАНОВОГО LEAD#💀⚡🔥 - 2МeV/3МeV???!.ЭТО ПРОСТО - НИЧЕГО!.💀⚡⚫⚫⚫⚫💀💀💀💀💀⚡⚡⚡
Love this lecture! Very informative!
Very useful, thanks a lot.
very informative. thanks.
good lecture ty
Nice talk!! I have a question--why Ge detectors are needed to be cooled to 77K temperature!??
semiconductors have a "gap" thats very easy for electrons to jump across and create a "false" signal, resulting in noise. lowering the temperature decreases the probability for thermal excitation so you're much more likely to be reading the actual gamma ray signals you want
Thermal noise has application in astrophotography as well. Cool the sensor so that it does not "see itself".
.#zZz#.⚡⬆️⬇️💀☢☣ДЛЯ 60Co#💀⚡🔥 - 1,5МeV/1,8МeV???!.ЭТО ВООБЩЕ - НИЧЕГО💀⚡🔥😂🤣😂🤣😂🤣😂🤣😂🤣😂🤣😂🤣😂😂ТАК И ДЛЯ УРАНОВОГО LEAD#💀⚡🔥 - 2МeV/3МeV???!.ЭТО ПРОСТО - НИЧЕГО!.💀⚡⚫⚫⚫⚫💀💀💀💀💀⚡⚡⚡