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Datasheet
Overview
Microchannel Plate (MCP) Gate Modules are used to gate an MCP ON by coupling a positive high voltage pulse onto the fixed bias of the MCP output electrode.
If multiple MCPs are used in a detector, the rear MCP is typically gated ON. In the normal OFF state the MCP bias is set below its working voltage. The MCP is turned ON when the high voltage pulse increases the MCP bias by 500 or 1000 volts.
The GM-MCP3 requires external bias voltages for operation. The GM-MCP3-1000 which outputs a 1000V gate pulse provides the highest level of signal suppression for the most demanding applications.
Contact Photek for customised version of these Gate Modules
Specifications
GM-MCP3-500 | GM-MCP3-1000 | |
MCP’s | 1 | 2-3 |
Normal State | OFF | OFF |
Input Pulse Min Width Max Width Pulse Frequency Voltage | ~ 9 ns RC Limited 1 kHz 5 V TTL | ~ 9 ns RC Limited 1 kHz 5 V TTL |
Output Pulse Pulse Width Loss Min Width Max Width Delay Risetime Falltime Jitter (RMS) | ~ 6 ns 4 ns < 10% Duty Cycle ~ 70 ns < 7 ns 1.5 ns < 115 ps | ~ 6 ns 4 ns < 10% Duty Cycle ~ 70 ns < 7 ns 1.5 ns < 115 ps |
Voltage Off On Bias (max) | 0 V + Bias +500 V + Bias ±9000 V (External) | 0 V + Bias +1000 V + Bias ±9000 V (External) |
Supply Voltage | +12 V DC | +12 V DC |
Supply Current Max | 300 mA | 300 mA |
Length | 166 mm | 166 mm |
Length including connectors | 191 mm | 191 mm |
Width | 81.1 mm | 81.1 mm |
Height | 46.1 mm | 46.1 mm |
Weight | ~ 420 g | ~ 420 g |
Operating Temperature | 0ºC to 70ºC | 0ºC to 70ºC |
