BNC 970 Portable Multi-Channel Analyzer (MCA) User Manual
Page 3
Model 970 Instruction Manual
i
Table of Contents
Table of Contents ..............................................................................................................................i
1
Introduction ................................................................................................................ 1
1.1
Model 970 System Requirements.............................................................................. 1
1.1.1
Model 970 Technical Specification ............................................................................ 1
1.2
Hardware Description and Controls........................................................................... 2
1.2.1
Front Panel ................................................................................................................ 2
1.2.2
Rear Panel ................................................................................................................. 2
1.2.3
Battery Compartment................................................................................................. 3
1.3
Powering the Model 970 ............................................................................................ 3
1.3.1
AC Power Supply....................................................................................................... 3
1.3.2
Charging the Internal NiMH Batteries ........................................................................ 3
1.3.3
Using Alkaline Batteries ............................................................................................. 4
1.3.4
Alternative External Power ........................................................................................ 4
2
General Operation ..................................................................................................... 5
2.1
Initial Start Up ............................................................................................................ 5
3
Functions,Controls, and Displays .............................................................................. 8
3.1
SNAP-MCA Main Window ......................................................................................... 8
3.2
Menu Bar ................................................................................................................... 8
3.3
Button Bar ................................................................................................................ 16
3.4
Hardware Status Bar................................................................................................ 17
3.5
New User Hints Bar ................................................................................................. 18
3.6
Spectrum Display..................................................................................................... 18
3.7
Spectrum Status Bar................................................................................................ 18
3.8
Acquisition Controls and Indicators ......................................................................... 19
3.9
Spectrum Smoothing ............................................................................................... 20
3.10
Button Panel ............................................................................................................ 20
4
Using the Library Editor ........................................................................................... 29
5
Using MCS Mode..................................................................................................... 32
5.1
Menu Bar ................................................................................................................. 32
5.2
MCS Acquisition Controls and Indicators ................................................................ 33
5.3
MCS Analog Panel................................................................................................... 35
6
Procedures............................................................................................................... 36
6.1
Calibrating a Detector with Model 970..................................................................... 36
6.2
Adjust Hardware Settings ........................................................................................ 36
6.2.1
Radiation Source and Detector................................................................................ 36
6.2.2
Input and Polarity ..................................................................................................... 37
6.2.3
High Voltage ............................................................................................................ 37
6.2.4
Threshold ................................................................................................................. 37
6.2.5
Coarse Gain and Fine Gain ..................................................................................... 37
6.2.6
Shaping Time........................................................................................................... 38
6.2.7
Determining Initial Hardware Settings ..................................................................... 38
6.3
Perform Energy Calibration ..................................................................................... 39
6.4
Perform a Shape Calibration ................................................................................... 42
6.5
Create a Regions of Interest (ROI) Set.................................................................... 43
6.6
Performing an Efficiency Calibration........................................................................ 46
6.7
Fine Tuning Hardware Settings ............................................................................... 48
7
Support Programs.................................................................................................... 49
8
Specifications........................................................................................................... 50