Difference between revisions of "Radionuclide Generator"
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*getting more training in handling radioactive material, | *getting more training in handling radioactive material, | ||
*learing about ion-exchange collumns. | *learing about ion-exchange collumns. | ||
+ | |||
+ | ==== Equipment ==== | ||
+ | |||
+ | *2 M HCl on 100 mL flasks, one for each student) | ||
+ | *DOWEX 50x4 (50-100 mesh) | ||
+ | *Uranyl nitrate - UO<sub>2</sub>(NO<sub>3</sub>)<sub>2</sub><sub></sub> | ||
+ | *NaAc + K<sub>4</sub>[Fe(CN)<sub>6</sub>] solution (on 100 mL flasks, one for each student) (prepared by mixing 8 g NaC<sub>2</sub>H<sub>3</sub>O<sub>2</sub> and 40 g K<sub>4</sub>[Fe(CN)<sub>6</sub>] in 1 L water) | ||
+ | * | ||
==== Safety aspects ==== | ==== Safety aspects ==== |
Revision as of 04:29, 6 January 2011
This lab exercise was developed for the UiO KJM 5911 course. The students will prepare a ion-exchange collumn using DOWEX-50 ion-exchange material and extract 234Th from a 234U solution. The thorium sticks to the ion exchanger and 1.17-min 234Pa will grow inn. The column can be milked once every 12 min. The students use 234Pa samples to measure its half life.
Learning goals
- To learn about radionuclide generators,
- working with short half lives,
- getting more training in handling radioactive material,
- learing about ion-exchange collumns.
Equipment
- 2 M HCl on 100 mL flasks, one for each student)
- DOWEX 50x4 (50-100 mesh)
- Uranyl nitrate - UO2(NO3)2
- NaAc + K4[Fe(CN)6] solution (on 100 mL flasks, one for each student) (prepared by mixing 8 g NaC2H3O2 and 40 g K4[Fe(CN)6] in 1 L water)
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 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 234Th (will be none-radioactive after one year).