GBS Elektronik MCA-527 - Manual (Page 3)

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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