Table of Contents
1 Introduction.......................................................................................................................6
1.1 General Introduction into Gamma Spectroscopy....................................................7
2 Hardware..........................................................................................................................8
2.1 Safety Information...................................................................................................8
2.1.1
Power Source................................................................................................8
2.1.2
High Voltage Supply......................................................................................8
2.2 General Hardware Description................................................................................9
2.2.1
Switching on the Device..............................................................................10
2.2.2
LED Indicators.............................................................................................10
2.2.3
Power Management....................................................................................11
2.2.4
Charging the MCA527.................................................................................12
2.2.5
Exchanging Batteries..................................................................................13
2.2.6
Connecting the MCA527 to a Computer.....................................................13
2.2.7
Connecting Detectors..................................................................................14
2.2.8
Applying High Voltage.................................................................................16
2.2.9
Exchanging the High Voltage Module.........................................................18
2.2.10 Functions of the D-SUB9 connector...........................................................18
2.2.11 Extension Port.............................................................................................20
2.2.12 Connector Pinouts.......................................................................................21
2.2.13 Accessories.................................................................................................24
2.3 MCA527OEM Specific Items................................................................................25
3 Pulse Height Spectroscopical Measurements...............................................................27
3.1 Introduction to Digital Signal Processing..............................................................27
3.2 Adjustments and Settings.....................................................................................28
3.2.1
Input Polarity...............................................................................................28
3.2.2
Coarse Gain................................................................................................28
3.2.3
Fine Gain.....................................................................................................29
3.2.4
Trigger Filter................................................................................................29
3.2.5
Trigger Level................................................................................................30
3.2.6
Pile-up Rejection.........................................................................................31
3.2.7
Shaping Time..............................................................................................32
3.2.8
Flat Top Time...............................................................................................34
3.2.9
Offset...........................................................................................................35
3.2.10 Pole Zero and Jitter Compensation............................................................36
3.2.11 Baseline Restoring......................................................................................39
3.2.12 Jitter Correction...........................................................................................40
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