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Prototype Test
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- 3×3multi-channel HAPD -
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Diode : □5 [mm/ch]
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Gain : 26000 [electron/photon]
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Cd
: 73 [pF]
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IL
: 14 [nA] (average/ch)
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Condition:
VHV=8[KV], VBIAS=320[V]
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Gain of the HAPD
is higher than for the HPD,
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but the noise
level is also higher due to its
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large detector
capacitance.
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The HPD shows a better
single photon
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response.
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