Gadolinium foils as converters of thermal neutrons in detectors of nuclear radiation / D.A. Abdushukurov.

Format:

Book

Author/Creator:

Abdushukurov, D. A.

Series:

Physics research and technology.

Physics research and technology

Language:

English

Subjects (All):

Neutron counters--Materials.

Neutron counters.

Gadolinium.

Metal foils.

Physical Description:

1 online resource (134 p.)

Edition:

1st ed.

Place of Publication:

Hauppauge, N.Y. : Nova Science Publishers, c2010.

Language Note:

English

Summary:

Converters of neutron radiation play a determining role in the development of detectors of these radiations. They determine the basic characteristics of detectors: the efficiency of registration, energy, time and spatial resolution. Among solid-state converters on the basis of gadolinium, 157 isotopes are especially allocated, which possess abnormally high cross sections of interaction with thermal neutrons. This book discusses the theoretical bases of registration of neutron radiation by converters from gadolinium. Also described herein are the processes of neutron absorption in the material of a converter and the probability of secondary electron escapes.

Contents:

Intro

GADOLINIUM FOILS AS CONVERTERS OF THERMAL NEUTRONS IN DETECTORS OF NUCLEAR RADIATION

CONTENTS

PREFACE

Chapter 1 INTRODUCTION

Chapter 2 MATHEMATICAL MODELING OF CONVERTER PERFORMANCES

2.1. THEORETICAL BASES

2.1.1. Probability of Neutrons Absorption

2.1.2. Probability of Gamma Quanta's Formation

2.1.3. Probability of Internal Conversion Electrons Formation

2.1.3. Intensity of Auger Electrons

2.1.6. Passage of Electrons through a Substance

2.2.1. Model Representation and Calculation

2.2.2. Probability of Converters Activation

2.2.3. Modeling for a Case of Neutrons Flow under Various Angles

2.2.4. Contribution of Low-Energetic Electrons to General Efficiency of Converters

2.2.5. Contribution X-Rays and Soft Gamma Radiations on General Efficiency of Converters

2.3.1. Modeling of Converters Representing Sandwiches, from Supporting Films and Converters

2.2.6. Modeling of Converters Executed from a Set Thin Drilling Converters

Chapter 3 POSITION-SENSITIVE DETECTORS OF THERMAL NEUTRONS WITH GADOLINIUM CONVERTERS

3.1. NORMAL PRESSURE MULTISTEP AVALANCHE CHAMBER

3.1.1. Characteristics of the Multistep Avalanche Chambers

3.1.2. Gas Amplification and Efficiency of Registrations MSAC

3.1.3. Spatial Resolution of the Multistep Avalanche Chambers

3.1.4. Influence of Gas Mixes on Characteristic MSAC

3.1.5. Ways of stabilization of operating modes for work MSAC

3.1.6. Dedector Desing

3.1.7. Effects of Some Constructional Elements on the MSAC Characteristics

3.2. THERMAL NEUTRON IMAGING DETECTORS COMBINING NOVEL COMPOSITE FOIL CONVERTORS AND GASEOUS ELECTRON MULTIPLIERS

3.2.1. The Neutron Convertor Foil

3.2.2. The Multistep Avalanche Chamber.

3.2.3. Detector Characteristics

3.3. HYBRID LOW-PRESSURE (MSGC) NEUTRON DETECTORS

3.3.1. The Detector Principle

3.3.2. Converter Fabrication

3.4. RESISTIVE PLATE CHAMBERS WITH GD-COATED ELECTRODES AS THERMAL NEUTRON DETECTORS

3.5. THE NEUTRON SENSITIVY IMAGE PLATES

3.5. NEUTRON IMAGING DETECTOR USING CAPILLARY PHENOMENA AND LIQUID SCINTILLATOR

3.6. POSITION-SENSITIVE DETECTION OF THERMAL NEUTRONS WITH SOLID STATE DETECTORS (GD SI PLANAR DETECTORS)

3.6.1. Characteristics of Detector

CONCLUSIONS

REFERENCES

INDEX

Blank Page.

Notes:

Description based upon print version of record.

Includes bibliographical references and index.

Description based on print version record.

ISBN:

1-61324-389-8

OCLC:

923661980