Nice talk!! I have a question--why Ge detectors are needed to be cooled to 77K temperature!??
@uraniumdrive Жыл бұрын
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
@thomasmaughan479811 ай бұрын
Thermal noise has application in astrophotography as well. Cool the sensor so that it does not "see itself".
@osmanfb12 жыл бұрын
very informative. thanks.
@alextocev6301 Жыл бұрын
good lecture ty
@ДмитрийБурбовский9 ай бұрын
.#zZz#.⚡⬆️⬇️💀☢☣ДЛЯ 60Co#💀⚡🔥 - 1,5МeV/1,8МeV???!.ЭТО ВООБЩЕ - НИЧЕГО💀⚡🔥😂🤣😂🤣😂🤣😂🤣😂🤣😂🤣😂🤣😂😂ТАК И ДЛЯ УРАНОВОГО LEAD#💀⚡🔥 - 2МeV/3МeV???!.ЭТО ПРОСТО - НИЧЕГО!.💀⚡⚫⚫⚫⚫💀💀💀💀💀⚡⚡⚡