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EG&G ORTEC 572 Operating And Service Manual

Spectroscopy amplifier and pile-up rejector

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Description
General
Pole-Zero Cancellation
Fig. 1.1. Differentiation in an Amplifier Without Pole-Zero Cancellation
Fig. 1.2. Differentiation in a Pole-Zero-Cancelled Amplifier
Active Filter
Fig. 1.3. Pulse Shapes for Good Signal-To-Noise Ratios
Specifications
Performance
Controls
Input
Outputs
Electrical and Mechanical
Installation
General
Connection to Power
Connection to Preamplifier
Connection of Test Pulse Generator
Shaping Considerations
Use of Delayed Output
Linear Output Connections and Terminating Considerations
Shorting or Overloading the Amplifier Outputs
Inhibit Output Connection
Busy Output Connection
CRM Output Connection
Operation
Initial Testing and Observation of Pulse Waveforms
Front Panel Controls
Front Panel Connectors
Rear Panel Connectors
Standard Setup Procedure
Fig. 4.1. Typical Effects of Shaping-Time Selection on Output Waveforms
Pole-Zero Adjustment
Fig. 4.2. Typical Waveforms Illustrating Pole-Zero Adjustment Effects; Oscilloscope
Fig. 4.3. a Clamp Circuit that Can be Used to Prevent Overloading the Oscilloscope Input
Fig. 4.4. Pole-Zero Adjustment Using a Square Wave Input to the Preamplifier
BLR Threshold Adjustment
Operation with Semiconductor Detectors
Fig. 4.5. BLR Threshold Variable Control Settings
Fig. 4.6. System for Measuring Amplifier and Detector Noise Resolution
Fig. 4.7. Noise as a Function of Bias Voltage
Fig. 4.8. System for Measuring Resolution with a Pulse Height Analyzer
Operation in Spectroscopy Systems
Fig. 4.9. System for Detector Current and Voltage Measurements
Fig. 4.10. Silicon Detector Back Current Vs Bias Voltage
Other Experiments
Fig. 4.11. System for High-Resolution Alpha-Particle Spectroscopy
Fig. 4.12. System for High-Resolution Gamma Spectroscopy
Fig. 4.13. Scintillation-Counter Gamma Spectroscopy System
Fig. 4.14. High-Resolution X-Ray Energy Analysis System Using a Proportional Counter
Fig. 4.15. General System Arrangement for Gating Control
Fig. 4.16. Gamma-Ray Charged-Particle Coincidence Experiment
Fig. 4.17. Gamma-Ray Pair Spectrometry
Circuit Description
Fig. 4.18. Gamma-Gamma Coincidence Experiment
Fig. 5.1. Amplifier Block Diagram
Maintenance
Test Equipment Required
Pulser Test
Fig. 5.2. Timing Relations in the 572 Amplifier and Pile-Up Rejector
Fig. 6.1. Circuit Used to Measure Nonlinearity
Suggestions for Troubleshooting
Factory Repair
Tabulated Test Point Voltages

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Model 572

Spectroscopy Amplifier

and

Pile-Up Rejector

Operating and Service Manual

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