Assembly Plant Determination Of Alpha Particle Range In Different Noble Gases Using Srim Software

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ASSEMBLY PLANT DETERMINATION OF ALPHA PARTICLE RANGE IN DIFFERENT NOBLE GASES USING SRIM SOFTWARE

 

Title Page

Certification/Declaration

Approval Page

Dedication

Acknowledgement

Abstract

Table of content

 

Chapter 1

Introduction

1:1 Introduction

1:2 Background of the Study

1:3 Statements of Problems

1:4 Objectives of the Study

1:5 Research Question

1:6 Study of the Hypothesis

1:7 Significance of the Study

1:8 Justification of the Study

1:9 Scope of the Study

1:10 Definition of Terms

 

Chapter 2

Literature Review

2:0 Introduction

2:1 Conceptual Clarification

2:2 Theoretical Framework

2:3 Literatures on the Subject Matter

 

Chapter 3

Research Methodology

3:0 Area of Study

3:1 Source of Data

3:2 Sampling Techniques

3:3 Method Data Collection

3:4 Method of Data Analysis

3:5 Reliability of Instrument

3:6 Validity of Instrument

3:7 Limitations of the Study

 

Chapter 4

Data Analysis

4:0 Introduction

4:1 Finding of the Study

4:2 Discussion of the Study

4:3 Summary

 

Chapter 5

Summary, Conclusion and Recommendation

5:0 Summary of Findings

5:1 Conclusion

5:2 Recommendations

5:3 Proposal for Further Studies

Alpha particles consist of two protons and two neutrons bound together into a particle identical to a helium-4 nucleus. They are generally produced in the process of alpha decay, but may also be produced in other ways. Alpha particles are named after the first letter in the Greek alphabet, α. The symbol for the alpha particle is α or α2+. Because they are identical to helium nuclei, they are also sometimes written as He2+

or 4

2He2+

indicating a helium ion with a +2 charge (missing its two electrons). If the ion gains electrons from its environment, the alpha particle becomes a normal (electrically neutral) helium atom 4

2He.

Alpha particles, like helium nuclei, have a net spin of zero. Due to the mechanism of their production in standard alpha radioactive decay, alpha particles generally have a kinetic energy of about 5 MeV, and a velocity in the vicinity of 5% the speed of light. (See discussion below for the limits of these figures in alpha decay.) They are a highly ionizing form of particle radiation, and (when resulting from radioactive alpha decay) have low penetration depth. They are able to be stopped by a few centimeters of air, or by the skin.

However, so-called long range alpha particles from ternary fission are three times as energetic, and penetrate three times as far. As noted, the helium nuclei that form 10–12% of cosmic rays are also usually of much higher energy than those produced by nuclear decay processes, and are thus capable of being highly penetrating and able to traverse the human body and also many meters of dense solid shielding, depending on their energy. To a lesser extent, this is also true of very high-energy helium nuclei produced by particle accelerators.

When alpha particle emitting isotopes are ingested, they are far more dangerous than their half-life or decay rate would suggest, due to the high relative biological effectiveness of alpha radiation to cause biological damage. Alpha radiation is an average of about 20 times more dangerous, and in experiments with inhaled alpha emitter up to 1000 times more dangerous,[3] than an equivalent activity of beta emitting or gamma emitting radioisotopes.

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