Abstract:Abstract:A sealed high gas pressure detector working in pure argon is assembled. It consists of a 5 cm × 5 cm PCB THGEM (THick Gaseous Electron Multipliers). The detector structure and experimental setup are described. The performances under high pressure of 2 atm mainly consist in selecting optimal voltages for ionization region and induction region. The dependence of the shape of Alpha particle spectra measured with relative gas gain on gas pressure (1.3 ∼ 2.0 atm) has been studied. The 8 groups of relative … Show more
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