Preliminary Test of MICROMEGAS Gaseous Detector
doi: 10.11804/NuclPhysRev.28.01.068
- Received Date: 1900-01-01
- Rev Recd Date: 1900-01-01
- Publish Date: 2011-03-20
-
Key words:
- counting plateau /
- energy resolution /
- gas gain /
- discharge rate /
- position resolution
Abstract: In this paper,A MICROMEGAS(MicroMeshGaseous Structure) detector with the amplification gap defined by stretching nylon fishing lines has been described . And its count plateau, gas gain and energy resolution in the condition of a 55Fe Xray source and ArCO2 (10%) mixture gases are measured as functions of mesh voltage. The count plateau approaches 280 V at the count rate of 103 Hz. The discharge rate is less than 10-4 when the gas gain is up to 104. The energy resolution is 30% (FWHM) based on -800 V mesh voltage. The position resolution is less than 120 μm at the condition of the sensitive area (50 mm×50 mm) Printed Circuit Boards (PCB) and its strip pitch of 400 μm. The results can satisfy the basic demand of MICROMEGAS detector preliminary design.
Citation: | LU Chen-gui, DUAN Li-min, #, YANG He-run, MA Peng, TANG Shu-wen, HU Rong-jiang, LI Zu-yu, . Preliminary Test of MICROMEGAS Gaseous Detector[J]. Nuclear Physics Review, 2011, 28(1): 68-70. doi: 10.11804/NuclPhysRev.28.01.068 |