Student Manual

In this experiment students work with radioactive sources and radiation detection apparatus. They perform quantitative measurements of the properties of these sources.

Software Code Absorption
Sample Results Experimentally achieved histogram overlaid with the Poisson distribution for the gamma source
Experiment Code 1.10
Version 3rd November 2015,2015-v3

Further Readings and References


Pictorial Procedure

1. Provided apparatus

1. Provided apparatus

2. GM Counter

2. GM Counter

3. Connect power cable to the AC mains, turn VOLTAGE ADJUST knob anti-clockwise and press POWER button

3. Connect power cable to the AC mains, turn VOLTAGE ADJUST knob anti-clockwise and press POWER button

4. Press VOLTS button 6 times till LED behind blinks

4. Press VOLTS button 6 times till LED behind blinks

5. Set 900V through VOLTAGE ADJUST knob

5. Set 900V through VOLTAGE ADJUST knob

6. Accessing the Geiger software

6. Accessing the Geiger software

7. Bar graph screen of Geiger software

7. Bar graph screen of Geiger software

8. Measurement menu for selecting a specific time interval

8. Measurement menu for selecting a specific time interval

9. Exporting a file; click image for clarity

9. Exporting a file; click image for clarity

10. Saving the .txt file; click image for clarity

10. Saving the .txt file; click image for clarity

11. loading the .txt file in MATLAB; click image for clarity

11. loading the .txt file in MATLAB; click image for clarity

12. Mounting a source holder

12. Mounting a source holder

Ppnuclear_13

13. Measuring the thickness of an absorbing sheet

14. Measure the distance (d) between source and GM tube

14. Measure the distance (d) between source and GM tube

15. Placing an absorbing sheet between the source and detector

15. Placing an absorbing sheet between the source and detector