Difference between revisions of "KJM5911 Lab Exercise 2 - Radionuclide Generators and Half Life"

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(Theory)
 
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*Understand how a radio-nuclide generator works and how it is used  
 
*Understand how a radio-nuclide generator works and how it is used  
 
*Understand how radioactivity is "growing in"  
 
*Understand how radioactivity is "growing in"  
 +
*Separate uranium and thorium using a cation-exchanger
 
*Training in handling radioactive material and safety procedures
 
*Training in handling radioactive material and safety procedures
 +
*Understand the principle of neutron activation
 +
*Deconvolute a decay curve with two components
  
 
=== Theory ===
 
=== Theory ===
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* [[Principle Behind Mother-Daughter Relationship]]
 
* [[Principle Behind Mother-Daughter Relationship]]
 
* [[Cation-exchange Column for Th]]
 
* [[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 ===  
 
=== Experimental Procedure ===  
  
*[[How to Make a 234mPa Radionuclide generator|making the <sup>234m</sup>Pa radionuklide generator]]  
+
*[[Preparing Solutions for Making 234mPa Generator|Preparing solutions]]
*[[How to Measure the Half Life of 234mPa|how to measure the half life of <sup>234m</sup>Pa]]  
+
*[[How to Make a 234mPa Radionuclide generator|Making the <sup>234m</sup>Pa radionuklide generator]]  
*[[Determining the Half Life of 234mPa|determining the half life of <sup>234m</sup>Pa]]  
+
*[[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  ====
+
=== 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.  
 
*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 rad. safety is mostly about regulations and not a real healt hazzard. 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).
+
*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 19:52, 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

Experimental Procedure

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).