Difference between revisions of "KJM5911 Lab Exercise 5 - Liquid Scintillation Counting"
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=== Experimental procedure === | === Experimental procedure === | ||
| − | + | We are going to use a modern liquid-scintillation counter (LSC) with three PM-tubes. This enables it to use the Triple-to-Doubble-Coincidence-Ratio (TDCR) parameter for quench correction. We will both use the traditional channel-ratio method and the TDCR method to investigate quenching in LSC samples. For this we will use 14C samples quenched with CCl. | |
| + | |||
| + | '''Part 1: Initial tests''' | ||
| + | |||
| + | *Measure 3T and 14C standards to get familiar with the machine (HIDEX 300) (2 min each). | ||
| + | *Measure an empty vial with 10 mL scintillator (and nothing else) inside (10 min or more). | ||
| + | *Measure an empty vial without scintillator solution (10 min or more). | ||
=== Equipment === | === Equipment === | ||
Revision as of 13:14, 9 November 2012
Learning Goals
- Understand the theory behind Liquid Scintillation detection.
- Understand how the detection equipment in Liquid Scintillation works.
Theory
Experimental procedure
We are going to use a modern liquid-scintillation counter (LSC) with three PM-tubes. This enables it to use the Triple-to-Doubble-Coincidence-Ratio (TDCR) parameter for quench correction. We will both use the traditional channel-ratio method and the TDCR method to investigate quenching in LSC samples. For this we will use 14C samples quenched with CCl.
Part 1: Initial tests
- Measure 3T and 14C standards to get familiar with the machine (HIDEX 300) (2 min each).
- Measure an empty vial with 10 mL scintillator (and nothing else) inside (10 min or more).
- Measure an empty vial without scintillator solution (10 min or more).
Equipment
- HIDEX 300 Automatic TDCR Liquid Scintillation Counter
