Electron detector has a _______ doped glass tube with a secondary semiconducting coating.
A. Quartz
B. Silica
C. Lead
D. Cesium
Answer:C
Electron detector has a _______ doped glass tube with a secondary semiconducting coating.
A. Quartz B. Silica C. Lead D. Cesium
Explanation: Electron detector has a lead doped glass tube with a secondary semiconducting coating. It has a high secondary electron shield.