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Pulse Preamplifier/Discriminator Selection for PMT?s and Electron Multipliers |
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Part No.: F-100T Features: 50 Mcps maximum count rate Set and forget discriminator trimmer TTL output pulses High sensitivity 2uA or 20 fC |
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Part No.: MTS-100 Features: F-100T specifications with HV decoupled Input for positively biased PMT?s or EM that require +HV on the collector. |
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Part No.: F-100D Features: F-100T with the discriminator?s level display and ten turn precision level adjustment. |
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Part No.: Combo-100 Features: F-100T with an input current amplifier for very high count rate applications. A low signals levels demand pulse counting, while large signals are processed as DC current. Both outputs are available simultaneously. |
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Part No.: F-100E Features: 100 Mcps max. count rate preamplifier/ discriminator with complementary ECL outputs. High sensitivity 2uA or 20 fC. |
| Part No.: F-400PECL Features: The fastest preamplifier/discriminator with complementary PECL outputs. Max. count rate 400Mcps. Low input Sensitivity: 1mV |
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| DETECTOR | RECOMMENDED PREAMPLIFIER | |||||
| TYPE | MAX. COUNT RATE [MHz] |
MODEL | MAX. COUNT RATE [MHz] |
INPUT SENSITIVITY |
OUTPUT TYPE |
COMMENT |
| Scintillation Counter [NaI(Tl)] |
1 MHz | N/A | 1 MHz | 0.25 mV | TTL | Low noise. Blind to PMT's high background count. Background count < 0.5 CPS. Built in PHA. |
| Channeltron® Electron multiplier |
10 MHz | F-100T F-100TD MTS-100 |
50 MHz | 2 µA | TTL | High sensitivity low noise. |
| Pulse PMT and discrete dynodes electron multiplier |
>100 MHz | F-100E | >100 MHz | 0.10 mV | ECL | 10 ns pulse pair resolution High sensitivity. |
| Microchannel Plate MCP type PMT |
>400 MHz | F-400PECL | 400 MHz | 1 mV | PECL | 2.5 ns pulse pair resolution. Lower sensitivity. Requires input pulse rise time < 5 ns. |