PerkinElmer QuantaSmart 1694267

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CHAPTER 8

148 PerkinElmer Life and Analytical Sciences

Alpha Beta Preview

The Alpha Beta Preview function is a Sample Priostat option available via the Run

menu. This feature allows you to observe the sample spectrum and approximate

the count rate of a sample containing an Alpha and Beta emitting nuclide in the

same vial.

Figure 8-7 Alpha Beta Preview Window

Table of Contents

Default Chapter4
- Explanation of Symbols4
- Table of Contents5
Chapter 111
- Energy Range11
Specifications11
- System Control11
- Chi-Square12
- Detectors12
- Efficiency12
- Physical Dimensions12
- Environmental Requirements13
- Varisette™ Sample Changer13
- Electrical Requirements14
- External Standard14
- Observed Background14
- Sample Cassettes15
- Shielding15
- Sample Vials16
Chapter 217
- How to Get Started17
- How to Perform the SNC (Self-Normalization and Calibration)18
- Steps in Performing an Assay20
- How to Perform an Assay22
- How to Create a Password25
- How to Associate an Assay to a Protocol27
- How to Count Samples29
- How to Disassociate an Assay from a Protocol30
- How to Edit an Assay31
- How to Print an Assay33
- How to Manually Print a Report33
- How to Link a Quench Set to a Sample Nuclide34
- How to Set up a Quench Standards Assay36
- How to Run an Alpha Beta Assay37
- How to Run an Alpha Beta Standards Assay38
- How to Use the Replay Feature39
- How to Calculate Radioactive Decay41
- How to Change the Time and Date42
How to17
Chapter 3 Attaching to a Network43
The System Computer43
Chapter 445
- Software Security45
- Main Window46
- Output Window47
- The Spectraview Window48
- The Instrument Status Bar49
- The Protocols Tree50
- The Replay Tree53
- Menus54
- Spectral Displays72
- Reports75
  - Printed Reports75
  - Electronic Reports76
The System Software45
Assays77
Chapter 577
- CPM Assays77
- DPM Assays78
- FS DPM Assay79
- Direct DPM Assays81
- Alpha Beta Assays82
- Alpha Beta Standards Assay85
- Quench Standards Assay86
- SPC Assay87
- Defining an Assay88
Libraries119
Chapter 6120
- Sample Nuclides Library120
- Quench Standards Library123
- Alpha Beta Nuclide Library124
- Alpha Beta Standards Library126
Chapter 7131
- Calibration/Normalization131
- Ipa131
- When to Perform These Procedures132
- Instrument Performance Assessment133
Calibration and Normalization131
Advanced Features145
- Priostat145
Chapter 8145
- Group Priostat145
- Sample Priostat146
- The Replay Feature162
  - Replay Output Window165
- High Sensitivity and Low Level Counting166
  - Super Low Level Counting167
- Alpha Beta Counting169
- Tandem Processing171
Chapter 9173
- Preventative Maintenance173
- Storing Data174
- Operational Errors175
- IPA Errors177
- Warnings and Messages179
  - System Messages179
Maintenance and Troubleshooting173
Chapter 10193
- Background Correction193
- Background Threshold193
- Chi-Square Calculation194
- DPM (Disintegrations Per Minute)194
- Efficiency194
- Figure of Merit Calculation194
- Half-Life Correction195
- IPA Background195
- LCR (Low Count Reject)195
- LUM (% Luminescence)195
- Radioactivity Units196
- Sigma % (%2S)196
- Radionuclide Decay Calculator197
- Reference (% Ref)197
Calculations193
Chapter 11199
Glossary199
- Theory207
- Alpha Beta Counting Theory217

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