Home-Products-Electronic instruments-preamplifier-142AH preamplifier
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Brief description:Ideal for charged particle or heavy ion detectors requiring high bias voltages and capacitances up to 100pF Extremely low noise Accepts bias voltages from 0 to 5kV Independent fast timing output signal, rise time The ORTEC142AH model preamplifier is designed to meet the needs of experimenters with performance requirements for charged particle or heavy ion detectors
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PRODUCT CATEGORYRadiological imaging quality control equipment
Portable Radioisotope Identification Device (RIID)
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Detailed introduction
142AH brochure 142AH Brochure (A4) 142AH Manual Type 142AH has a separate fast-timed output signal with a width of approximately 50 ns and rise times ranging from <5 ns (for 0 pF detectors) to <12 ns (for 100 pF detectors). This feature enables direct coupling to timing discriminators for certain applications.
Excellent timing resolution is achieved by pairing the Type 142AH with ORTEC standard electronics.
Performance
Unless otherwise stated, performance specifications apply to energy output.
| noise | Typical and guaranteed noise values
| ||||||||
| integral nonlinearity | for0to±7 Vopen circuit or ±3.5 VTermination93Ω，<±0.05％。 | ||||||||
| temperature instability | from0Arrive50°C，<±50 ppm/°C。 | ||||||||
| open loop gain | >40,000。 | ||||||||
| Charge Sensitivity (Siequivalent) | The nominal value is20 mV/MeV。 | ||||||||
| rise time | in0 pFtime<5 ns；100 pFtime<12 ns;There is a0Arrive+0.5Vof pulses and a93Ω load. | ||||||||
| decay time | approx.500 µs。 | ||||||||
| Recommended input capacitance range | 0to100 pF。 | ||||||||
| Permissible output cable length | Limited only by cable losses (recommended cables: energy output,RG-71A/UorRG-62A/U;Timing output,RG-58）。 | ||||||||
| E2CRP | Energy squared count rate products:2 X 107MeV2/s。 | ||||||||
| Detector bias voltage | ±5000 V。 | ||||||||
| Output level and load | All specifications are for open circuit output unless the output level is terminated at half the open circuit value.93Ohmic termination or cable loading remains unchanged. Saturated output level, ±10 V;Integral nonlinearity is specified as ±7 V。 | ||||||||
Input
| Input | Accepts positive or negative charge input from any type of detector (usually from a semiconductor detector);SHVconnector. |
| bias voltage | Accepts the detector bias voltage from the bias supply and applies it to the detector through a filter network using the input connector; ±5000 V；SHVconnector orORTEC C-38。 |
| test | input pulse generator to test and calibrate the system;BNCconnector. |
| power supply | by anyORTECmain amplifier orORTEC 4002Pportable power supply3meters(10ft.) comes with its own power cord for input power. |
Output
| energy | Positive or negative linear tail pulse for energy measurement;BNCconnector. |
| Timing | Used for timed negative or positive linear fast clipping pulses. The output is produced by using an inverting transformer that differentiates the energy output. The rise time is approximately equal to the rise time of the energy output.BNCconnector. |
electrical and mechanical
| Required power supply | +24 V, 30 mA; –24 V, 10 mA; +12 V, 15 mA; –12 V, 15 mA。 |
| weight | Net weight 0.45Kilogram (1pounds). Shipping weight1.3Kilogram (3pounds). |
| Size | 4.45 X 10.16 X 13.21 cm (1.75 X 4.0 X 5.2 inches)。 |
| Model | Description |
| 142AH | preamplifier |
Recommended cable accessories
| C-24-12 | Bring twoBNCmale plugRG-62A/U 93ohm cable;12feet long |
| C-25-12 | Bring twoBNCmale plugRG-58A/U 50ohm cable;12feet long |
| C-36-2 | Bring twoSHVfemale plugRG-59A/U 75ohm cable,2feet long |
| C-36-12 | Bring twoSHVfemale plugRG-59A/U 75ohm cable,12feet long |
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