03266nam a22002057a 450000500170000000800410001704000100005808200070006810000260007524501140010126400690021530000520028450212910033650400400162750511890166765000560285694200130291299900170292595201180294220260425110702.0260425b           ||||| |||| 00| 0 eng d  cSSBUL  2230 aKhin Su Su Han96833100aAnalysis Of Radionuclides Contained In Sediments From Some Hot Springs In Northern Shan StatecKhin Su Su Han  aMandalay:bDepartment Of Physics, University Of Mandalay,c2007.  a47 pages:bPhotographs, Charts, Tables;c30 cm.  aABSTRACT

In the present work, the radionuclide contained in sediment samples from Lashio and Kyaukme hot springs in Northern Shan States were determined. Firstly, the cool water near Lashio hot spring was also analyzed by chemical method for hazardous and toxic elements. By chemical method, no components hazardous to health and no toxic substances were found. According to the result obtained, the water at 30°C could be made drinkable but only after intensive boiling The gamma activities were measured to investigate the radionuclides in the sample by using Nal(TI) gamma ray spectrometer. By analyzing the spectrum following radio isotopes were investigated. They are 228 Ac, 213Pb, 208 TI, 226Ra, 214Pb and 214Bi. Concentration of these nuclides in sediment samples were calculated by using measured data and literature values. All radionuclide concentrations in hot spring samples were found to be very low percentage. In order to identify the origin of these activity and concentration, the soil samples 50ft away from Lashio hot springs were also measured but the above mentioned radionuclides were not found. So the measured activities were definitely emitted from hot spring water, not from around the hot spring.bPhDcDepartment Of Physics, University Of Mandalay,d2007.  aIncludes References and Appendices.  aCONTENTS

ACKNOWLEDGEMENTS

ABSTRACT

CHAPTER I

HOT SPRINGS

1.1 Introduction

1.1.1 Creation of Hot Springs

1.1.2 Life in and Around Hot Springs

1.1.3 The smell of Hot Springs

1.1.4 Hot Spring History

1.2 Hot Springs and Geysers

1.2.1 Deposition of Hot Springs and Geysers

1.2.2 Geyser Eruptions

1.3 Sulphur Springs

1.4 Radionuclide Contained in sediments

CHAPTER II

THEORETICAL BACKGROUND OF GAMMA SPECTROSCOPY

2.1 Introduction of Radioactivity

2.1.1 Radioactive Decay

2.2 Introduction of Gamma Rays

2.2.1 Emission of Gramma Rays

2.2.2 Interaction of Gamma Rays with matter

2.3 Gamma spectroscopy

2.4 Scintillation Detectors

2.4.1 Sodium Iodide (Nal(TI)} Detectors

2.4.2 Detector Performance

CHAPTER III

EXPERIMENTAL PROCEDURE

Introduction 3.1

3.1.1 System Components of Gamma Spectroscopy

3.2 System Performance

3.3 Sample Location (Sampling Site)

3.4 Sample Collection and Preparation

3.5 Experimental Set-Up for Gamma Emission Measurement

CHAPTER IV

RESULTS AND CONCLUSION

4.1 Results and Discussion

4.2 Conclusion

APPENDIX

REFERENCESrKhin Su Su HantAnalysis Of Radionuclides Contained In Sediments From Some Hot Springs In Northern Shan State  aRadionuclidesxAnalysiszNorthern Shan State968332  2ddccREF  c48613d48613  00102ddc40718REFaSSBUbSSBUcREFSd2026-04-25l0oT-247 PhDpT247PhDr2026-04-25w2026-04-25yREFAT-247 PhD