Kev siv xoo hluav taws xob
Cov duab xoo hluav taws xob yog xaim hluav taws xob nrog lub ntsej muag luv, los yog cov kwj ntawm photons nrog lub zog. Kev siv xoo hluav taws xob yog hais txog lub zog ci ntsa iab dhau los ntawm ib ntu cheeb tsam uas txiav tawm mus rau duab hluav taws xob ib ntu zuj zus. Kev siv xoo hluav taws xob tuaj yeem hloov los ntawm kev hloov pauv raj tam sim no lossis lub raj siv hluav taws xob. Ua kom cov raj xa hluav taws xob tam sim no tuaj yeem nce ntau ntawm hluav taws xob los tsoo lub anode phiaj ib ntu sijhawm, yog li cov duab xoo hluav taws xob muaj peev xwm nce ntxiv; nce lub raj hluav taws xob muaj peev xwm nce lub zog (E = eu) tau txais los ntawm cov khoom siv hluav taws xob hauv cov hluav taws xob, uas ua rau Photon lub zog kuj nce, yog li kev siv xoo hluav taws xob kuj tseem muaj zog. Hauv kev siv, kev siv hluav taws xob xoo hluav taws xob feem ntau hloov los ntawm kev kho lub raj tam sim no ntawm qee lub raj xa hluav taws xob, yog li ntawd lub raj tam sim no (mA) feem ntau siv hauv tshuaj kom muaj kev cuam tshuam.