Difference between revisions of "KJM5911 Lab Exercise 2 - Radionuclide Generators and Half Life"
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| − | + | ==== Learning Goals ==== | |
| + | |||
| + | *Understand mother-daughter relations and radioactive equilibrium | ||
| + | *Understand how a radio-nuclide generator works and how it is used | ||
| + | *Understand how radioactivity is "growing in" | ||
| + | *Separate uranium and thorium using a cation-exchanger | ||
| + | *Training in handling radioactive material and safety procedures | ||
| + | *Understand the principle of neutron activation | ||
| + | *Deconvolute a decay curve with two components | ||
| + | |||
| + | === Theory === | ||
| + | |||
| + | * [[Principle Behind Mother-Daughter Relationship]] | ||
| + | * [[Cation-exchange Column for Th]] | ||
| + | * [[Neutron activation of Ag with a Pu/Be n-source]] | ||
| + | * [[How to Calculate End-of-Irradiation Yields of Ag-isotopes]] | ||
| + | |||
| + | === Experimental Procedure === | ||
| + | |||
| + | *[[Preparing Solutions for Making 234mPa Generator|Preparing solutions]] | ||
| + | *[[How to Make a 234mPa Radionuclide generator|Making the <sup>234m</sup>Pa radionuklide generator]] | ||
| + | *[[How to Measure the Half Life of 234mPa - with MCA system|How to measure the half life of <sup>234m</sup>Pa (with NaI-detector and MCA)]] | ||
| + | *[[Determining the Half Life of 234mPa|Determining the half life of <sup>234m</sup>Pa]] | ||
| + | *[[Neutron Activation of Ag|Neutron Activation of Ag]] | ||
| + | *[[How to Measure the Decay of n-activated Silver|How to Measure the Decay of n-activated Silver]] | ||
| + | *[[Analyzing a Two-componet Decay Curve|Analyzing a Two-componet Decay Curve]] | ||
| + | *[[Analyzing the Production Curve for n-activation of Ag|Analyzing the Production Curve for n-activation of Ag]] | ||
| + | |||
| + | === Safety Aspects === | ||
| + | |||
| + | *Chemical safety - nothing particulary dangerous, 2-M HCl and 0.1-M AgNO3 should of course be handled according to normal safety precations. DOWEX residues and waste should be collected and handled according to normal procedures. | ||
| + | *Rad. safety - very small amounts of uranyl nitrate is used, so there is no big healt concern with respect to this source. However, the Pu/Be source is quite strong (about 10<sup>7</sup> n/s) and should only be handled by your supervisor. Always keep as far away as possible from this source. | ||
| + | *Waste handling. All radioactive waste should be collected, logged and deposited in the dedicated rad. waste accumulation are. Remember to collect the DOWEX from the ion-exchange collumns in separate containers as it is contaminated with 24-day <sup>234</sup>Th (will be none-radioactive after one year). | ||
Latest revision as of 20:52, 7 November 2012
Learning Goals
- Understand mother-daughter relations and radioactive equilibrium
- Understand how a radio-nuclide generator works and how it is used
- Understand how radioactivity is "growing in"
- Separate uranium and thorium using a cation-exchanger
- Training in handling radioactive material and safety procedures
- Understand the principle of neutron activation
- Deconvolute a decay curve with two components
Theory
- Principle Behind Mother-Daughter Relationship
- Cation-exchange Column for Th
- Neutron activation of Ag with a Pu/Be n-source
- How to Calculate End-of-Irradiation Yields of Ag-isotopes
Experimental Procedure
- Preparing solutions
- Making the 234mPa radionuklide generator
- How to measure the half life of 234mPa (with NaI-detector and MCA)
- Determining the half life of 234mPa
- Neutron Activation of Ag
- How to Measure the Decay of n-activated Silver
- Analyzing a Two-componet Decay Curve
- Analyzing the Production Curve for n-activation of Ag
Safety Aspects
- Chemical safety - nothing particulary dangerous, 2-M HCl and 0.1-M AgNO3 should of course be handled according to normal safety precations. DOWEX residues and waste should be collected and handled according to normal procedures.
- Rad. safety - very small amounts of uranyl nitrate is used, so there is no big healt concern with respect to this source. However, the Pu/Be source is quite strong (about 107 n/s) and should only be handled by your supervisor. Always keep as far away as possible from this source.
- Waste handling. All radioactive waste should be collected, logged and deposited in the dedicated rad. waste accumulation are. Remember to collect the DOWEX from the ion-exchange collumns in separate containers as it is contaminated with 24-day 234Th (will be none-radioactive after one year).
