Timing Filter Amplifier - Model 2111
Features
- Wide gain range: 1.5 to 200
- Independent integration and differentiation
- Complementary transconductance output
- ≤8 ns rise time (typically 6 ns)
- Ultra low noise
- Pole/Zero cancellation
- Preamp power output
Applications
- Timing with Ge and NaI detectors
- General purpose wideband signal conditioning
- Signal to noise ratio optimization
- Ultra high count rate energy spectroscopy
- Rise time normalization
Description
The Model 2111 Timing Filter Amplifier is a wideband, pulse shaping amplifier designed to enhance timing analysis. By adjusting the time constant settings, the user can optimize pulse shape and slope-to-noise ratio when making timing measurements. The Model 2111 can also serve as a wideband or variable bandwidth general purpose amplifier and as a shaping amplifier for high rate energy spectroscopy applications.
When used in a timing system, the Model 2111 will enhance performance of moderate (NaI) to slow (HPGe) speed radiation detectors. The ±5 V output capability into a 50 W load makes the unit ideally suited to drive constant fraction discriminators such as the Model 2126. The selectable 50/100 W input impedance and a preamp power connector on the rear of the unit allow operation with a variety of preamps and detectors.
The gain of the Model 2111 spans the range from 1.5 to 200, using four coarse gain settings and a fine gain control for continuous coverage. The 2111's output stage is fully complementary and can drive both positive and negative unipolar pulses or bipolar pulses into 50 W. A front panel toggle switch is provided to select inverted or non-inverted output polarity. Independent integrate and differentiate controls allow flexible control of shaping with selection of time constants between 10 ns and 500 ns. With integrate and differentiate controls set in the Out position, wideband rise time is less than 8 ns with a Differentiate time constant greater than 150 ms. Pole/Zero cancellation overload recovery and high count rate performance for any Differentiate setting.
The flexible control of pulse shaping, the speed, and the wide dynamic range of the Model 2111 make it ideal for use in timing spectroscopy and other laboratory applications.
Figure 1. Timing with an HPGe Detector
Note to our International Customers: If you would like a quote on this product, please contact your Local Sales Office for assistance. |
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| Models | Description | |
| 2111 | Timing Filter Amplifier | |