Physics and Engineering of Radiation Detection

378 Chapter 6. Scintillation Detectors and Photodetectors

Incident

Photocathode Photons

Anodes

V

acuume

d^

Gl

ass

E

nc

losure

Figure 6.5.9: Metal channel type PMT.

Incident

Photons

Photocathode

(a)

(b)

Micro Channels

Anode

Electrons

Vacuumed Glass Enclosure

Micro Channels

Electrons

Figure 6.5.10: (a) Micro channel type PMT. (b) Electron

multiplication in a glass channel of MCP.