Chronic Radiation Hazards - 1st Edition - ISBN: 9780080090535, 9781483155968

Chronic Radiation Hazards

1st Edition

An Experimental Study with Fast Neutrons

Authors: G.J. Neary R.J. Munson R H Mole
eBook ISBN: 9781483155968
Imprint: Pergamon
Published Date: 1st January 1957
Page Count: 202
Tax/VAT will be calculated at check-out Price includes VAT (GST)
30% off
30% off
30% off
30% off
30% off
20% off
20% off
30% off
30% off
30% off
30% off
30% off
20% off
20% off
30% off
30% off
30% off
30% off
30% off
20% off
20% off
54.95
38.47
38.47
38.47
38.47
38.47
43.96
43.96
43.99
30.79
30.79
30.79
30.79
30.79
35.19
35.19
72.95
51.06
51.06
51.06
51.06
51.06
58.36
58.36
Unavailable
Price includes VAT (GST)
× DRM-Free

Easy - Download and start reading immediately. There’s no activation process to access eBooks; all eBooks are fully searchable, and enabled for copying, pasting, and printing.

Flexible - Read on multiple operating systems and devices. Easily read eBooks on smart phones, computers, or any eBook readers, including Kindle.

Open - Buy once, receive and download all available eBook formats, including PDF, EPUB, and Mobi (for Kindle).

Institutional Access

Secure Checkout

Personal information is secured with SSL technology.

Free Shipping

Free global shipping
No minimum order.

Description

Chronic Radiation Hazards: An Experimental Study with Fast Neutrons describes a large-scale experiment on the hazards to be expected from low and very low levels of chronic irradiation by fast neutrons. Fast neutrons may be an environmental hazard around nuclear reactors and some machines for accelerating particles, and it is therefore of practical as well as academic importance to get some idea of the likely ill-effects of chronic irradiation by fast neutrons. The book is organized into four parts. Part I describes the experimental design, including factors such choice of animal, choice of dose rate, observation of radiation effects, dose measurements, and energy of the neutrons. Part II deals with the measurement of fast neutron dose. Topics discussed include Interaction of neutrons with light elements; energy absorption due to fast neutrons; energy absorption due to gamma rays; and ionization-dose and ionization-flux relations for fast neutrons. Part III discusses the results of fast neutron irradiation while Part IV covers the relative biological efficiency of fast neutrons and gamma rays for chronic exposures.

Table of Contents


Preface

Acknowledgments

I. Experimental Design

1. Introduction

2. Choice of Animal

3. Choice of Dose Rate

4. Continuity of Irradiation

5. Contaminating Radiations

6. Animal Care

7. Observation of Radiation Effects

8. General Structural Lay-out

9. The Radiations in the Tanks

(i) Fast Neutron Radiation

(ii) Background Fast Neutron Radiation

(iii) Thermal Neutrons

(iv) Gamma Radiation

10. Dose Levels in the Tanks

11. The Energy of the Neutrons

12. Dose Distribution in the Mouse

II. Dosimetry

1. Introduction

2. Interaction of Neutrons with Light Elements

3. Energy Absorption Due to Fast Neutrons

(i) Elastic Scattering of Fast Neutrons

(ii) Inelastic Scattering and Nuclear Reactions of Fast Neutrons

4. Energy Absorption Due to Slow Neutrons

5. Energy Absorption Due to Gamma Rays

6. Principle of Method of Measurement of Fast Neutron Dose

7. Ionization-dose Relations for Fast Neutrons

(i) Homogeneous Acetylene and Tissue Chambers

(ii) Non-homogeneous Chambers

8. Ionization-flux Relations for Slow Neutrons

(i) Boron Trifluoride Chamber

(ii) Magnesium-argon Chamber

(iii) Acetylene Chamber

(iv) Tissue Chamber

(v) Relative Ionizations by Fast and Slow Neutrons

9. Ionization-dose Relations for Gamma Rays

10. Attenuation of Radiations in the Chamber Walls

11. Expressions for Fast Neutron and Gamma Ray Dose Rates and for Slow Neutron Flux

12. Accuracy of the Estimates of Dose Rate

(i) Fast Neutron Dose Rate

(ii) Gamma Ray Dose Rate

(iii) Slow Neutron Flux

13. Comparison of the Fast Neutron Dose Rates from Observations with Acetylene, Tissue and Aluminum-argon Chambers

14. Apparatus and Experimental Procedures

(i) The Ionization Chambers

(ii) Ionization Current Measurement

(iii) Saturation Curves

(iv) Calibration of the Chambers

15. Energy of the Gamma Rays in the Irradiation Tanks

(i) Experimental Details

(ii) Results

16. Energy Loss per Ion Pair in Gases

(i) Experimental Work since 1944

(ii) Energy per Ion Pair in Argon

(iii) Energy per Ion Pair in Acetylene

(iv) Energy per Ion Pair in Nitrogen, Oxygen, Air, Carbon Dioxide, Water Vapor and Boron Trifluoride

(v) General Conclusions for Pure Gases

(vi) Ionization by Neutron Recoils

(vii) Energy per Ion Pair in Gas Mixtures

17. Summary

Appendix. Ionization Currents in Chambers Exposed to Slow Neutrons

III. Results of Fast Neutron Irradiation

1. Records of Dosage and Environment

(i) Dosage

(ii) Environmental Temperature

2. Effects of Continued Exposure to Death

(i) Survival Times: Analysis and Interpretation

(ii) Body Weight

(iii) Causes of Death and Other Pathological Observations

(iv) Incidence of Tumors

3. Effects of Limited Exposure

(i) Hematology

(ii) Weights of Organs

(iii) Male and Female Fertility

(iv) Survival after Limited Exposures

(v) Observations on Mice Bred in the Irradiation Field

(vi) Testis Weight after a Single Dose of Fast Neutrons

4. Discussion

5. Summary

IV. Relative Biological Efficiency of Fast Neutrons and Gamma Rays for Chronic Exposures

1. Radiation Sources

2. Testis Weight

3. Male Fertility

4. Female Fertility

5. Hematological Changes

6. Weight of Spleen and Thymus

7. Discussion

8. Summary

General Summary and Conclusions

Glossary of Symbols

Index

Details

No. of pages:
202
Language:
English
Copyright:
© Pergamon 1957
Published:
Imprint:
Pergamon
eBook ISBN:
9781483155968

About the Author

G.J. Neary

R.J. Munson

R H Mole