EXAMINATION OF NATURAL RADIOACTIVITY IN BUILDING MATERIAL IN KATSINA STATE USING GAMMA RAY SPECTROSCOPY (A CASE STUDY OF CEMENT BLOCK)

For more Physics projects click here


ABSTRACT



Twenty Concrete Blocks from (20) different Local Governments in Katsina state was measured using Gamma Ray Spectroscopy with NaI (TL) detector. Three naturally Occurring Radionuclides and their activity concentrations were determined, are 40K 226Ra, and 232Th. Their activity Concentrations ranges from 40K 46.11 ± 826.59 to 46.11± 8.55 Bq/kg, (226Ra) ranged from10.19 ± 2.43Bq/kg to 75.09 ± 4.98 Bq/kg and (232Th) ranged from 2.77 ± 9.59Bq/kg to 123.49 ± 9.35Bq/kg respectively. The highest value also determined from 40K was (826.59 ± 4.82Bq/kg), the highest value of 226Ra was 75.09 ± 4.98Bq/kg , the highest value for (232Th) is 123.49 ± 9.35 Bq/kg respectively. The Radium Equivalent mean value was obtained from the measurement ranged from (34.8 ± 1.59 to 411.26nGT/h), The absorbed dose rate in air with its mean value was obtained, ranges from (147.16 ± 3.55nGy/h). The limit set in the OECD report (370Bq/kg) and UNSCEAR, 2000 (24 to 160nGy/h). The annual effective dose obtained, ranges from 0.04 ± 0.001 to 0.20 ± 0.0001mSv/y, with mean value 0.187 ± 0.0005mSv/y. Recommended limit 0.460 mSv/y set by ICRP, 2007 for terrestrial radiation. The evident that the Results give lower value when compared with 1mSv/y for Public exposure (ICRP, 2007).


TABLE OF CONTENTS

Title page
Abstract
Table of content (TC)
List of tables   (LT)
List of figure
List of abbreviation

CHAPTER ONE: INTRODUCTION
1.0:      Introduction
1.1:      Background of the study
1.2.0:   Natural Radioactivity in the Environment
1.2.1:   Potassium -40 (40K)
1.2.2:   Uranium Decay Series
1.2.3:   Thorium Decay Series
1.2.4:   Radon
1.3.0:   NORM in Building Materials
1.4.0:   Component of Cement Block
1.4.1:   Sand
1.4.2:   Cement
1.4.3:   Gravel Aggregate
1.4.4:   Concrete
1.5.0:   Statement of the problems
1.6:      Aims and Objectives
1.7:      Significant of the Study
1.8:      Scope and Limitation of the study
1.9:      limitations
1.10:    List of local Government in Katsina State

CHAPTER TWO: LITERATURE REVIEW
2.0:      Literature review
2.1:      History
2.2:      Sources of Natural Occurring Radioactive Materials (NORM)
2.2.1:   Cosmic radiation
2.2.2:   Terrestrial radiation
2.2.3: Man-made sources
2.2.4:   Members of the public
2.2.5:   Occupationally exposed individuals
2.3:      NORMS Isotopes
2.4:      Health Risk of Norms
2.4.1:   Standard and regulations of radiation exposure
2.5:      Types of Radioactive decay
2.5.1:   Alpha particles decay
2.5.2:   Beta decay
2.5.3:   Gamma decay
2.6:      Gamma – ray interaction with matter
2.6.1:   Photo electric effects
2.6.2:   Campton scattering
2.6.3:   Pair Production
2.6.4:   Biological effects of Radiation
2.6.5:   Radium – 226 (226Ra)
2.6.6: Potassium-40 (40K)
2.6.7:   Thorium-232 (232Th)
2.6.8:   Cancer Treatment
2.7.0:   Review on related literature

CHAPTER THREE: MATERIALS AND METHOD
3.0:      Materials and Method
3.1.0:   Material
3.2.0:   Method of making cement blocks
3.2.1:   Size and structure of cement blocks
3.3:      Samples Collection
3.4:      Samples preparation
3.5:      Energy Calibration of Sodium Iodide Thallium
            Gamma spectroscopy system

CHAPTER FOUR: RESULT AND DISCUSSION
4.0: Result and Discussion
4.1: Experimental Result
4.2:      Activity analysis
4.2.1:   The radium equivalent
4.2.2:  Absorbed dose in Air
4.2.3:   Annual Effective Dose Rate
4.3:      Statistical analysis of the samples

CHAPTER FIVE: CONCLUSION AND RECOMMENDATIONS
5.0:      Conclusion and Recommendations
5.1:      Conclusion
5.2:      Limitations
5.3:      Recommendations
REFERENCES
APPENDICES


CHAPTER ONE


1.0:         INTRODUCTION


1.1:       Background of the study


The world is naturally radioactive, and around 90% of human radiation exposure arises from natural sources such as cosmic radiation, exposure to radon gas and terrestrial radiations. Significantly, natural occurring radionuclides present in soil are 238U, 232Th,40K (Harb et al.,2010).

However, since these radionuclides are not uniformly distributed, the knowledge of their distribution in soils and rocks play important role in radiation protection and measurement. Some of these exposures are fairly constant and uniform for all individual persons everywhere, for examples, the dose acquire from ingestion of 40K in foods. Other exposure varies depending on location. Cosmic rays, for example, are more intense at higher altitudes and concentration of uranium and thorium in soils are elevated in localized areas. High level of uranium and its decay products in soil and rock, and thorium in sands are the main sources of high natural background of radiations that have been identified in several areas of world (UNSCEAR, 2000).

Most building materials contain various amount of radioactivity, for example materials derived from rock and soil that contains natural radionuclides of Uranium (238U), thorium (232Th) and isotope of potassium40K series (McAulary et al., 1989).

Radiation exposure due to the building materials can be divided into external and internal exposures. The external exposure is caused by direct gamma radiation, from the nuclei

in the building material whereas the internal exposure is caused by the inhalation of radioactive.... 


For more Physics projects click here
___________________________________________________________________________
This is a Postgraduate Thesis and the complete research material plus questionnaire and references can be obtained at an affordable price of N3,000 within Nigeria or its equivalent in other currencies.


INSTRUCTION ON HOW TO GET THE COMPLETE PROJECT MATERIAL

Kindly pay/transfer a total sum of N3,000 into any of our Bank Accounts listed below:
·         Diamond Bank Account:
A/C Name:      Haastrup Francis
A/C No.:         0096144450

·         GTBank Account:
A/C Name:      Haastrup Francis
A/C No.:         0029938679

After payment, send your desired Project Topic, Depositor’s Name, and your Active E-Mail Address to which the material would be sent for downloading (you can request for a downloading link if you don’t have an active email address) to +2348074521866 or +2348066484965. You can as well give us a direct phone call if you wish to. Projects materials are sent in Microsoft format to your mail within 30 Minutes once payment is confirmed. 

--------------------------------------------------------
N/B:    By ordering for our material means you have read and accepted our Terms and Conditions


Terms of Use: This is an academic paper. Students should NOT copy our materials word to word, as we DO NOT encourage Plagiarism. Only use as guide in developing your original research work.

Delivery Assurance
We are trustworthy and can never SCAM you. Our success story is based on the love and fear for God plus constant referrals from our clients who have benefited from our site. We deliver project materials to your Email address within 15-30 Minutes depending on how fast your payment is acknowledged by us.

Quality Assurance
All research projects, Research Term Papers and Essays on this site are well researched, supervised and approved by lecturers who are intellectuals in their various fields of study.
Share:

No comments:

Post a Comment

Note: Only a member of this blog may post a comment.

Search for your topic here

See full list of Project Topics under your Department Here!

Featured Post

Article: How to Write a Research Proposal

Most students and beginning researchers do not fully understand what a research proposal means, nor do they understand ...

Popular Posts