1. Research into the effect of different latitudes on cosmic radiation using HiSPARC detectors BY PIP RUDGE

2. Preliminary Research Reading background articles: Cosmic rays Data analysis Practice analysis: Winter-Summer variation Day-night variation Effect of pressure

3. Preliminary Analysis Data for the night recorded from 2200 to 0300. For the day: 1000 to 1500. Compare the difference between day and night at different latitudes. Different detector sensitivity. Analysed data from detectors with lowest and highest latitudes. One week of data from 15 stations.

4. Initial Difficulties Difficult to find a suitable hypothesis. Discussion with Cristina Lazzeroni. Voltage of detector - doesn’t make a significant difference.

5. I could then research how latitude affected the total number of cosmic ray events. Data from 15 stations at different latitudes. One week. Correlation of 0.654. My 1st hypothesis – As latitude increases the number of cosmic ray events will increase. Main Analysis:

6. Investigate the total number of cosmic ray events 15 stations Throughout July Positive correlation

7. Possible Reasons: Earth’s magnetic field Suns Radiation My 2nd Hypothesis – The reason for this effect would be due to the Earth’s magnetic field.

8. Use data from the night to eliminate any influence of the suns radiation. 10pm to 2.00 am Found a correlation of 0.4248. Further research needed.

9. Plotted a graph of the number of events each day against latitude 8 stations 3 months – June, July and August.

10. Analysis of outcome Limitations? Did I meet my objective? Were my hypotheses right? Usefulness? Future work?

11. Thank you Any questions?