This book is a concise introduction to the experimental technicalities of low and ultralow temperature physics research.This book is a concise introduction to the experimental technicalities of low and ultralow temperature physics research. The book begins with an introduction to the thermodynamic principles of refrigeration and thermometry. The basic introduction to the subject will be of value to postgraduate students beginning research in low temperature physics, and to seasoned researchers moving into the field.This book is a concise introduction to the experimental technicalities of low and ultralow temperature physics research. The book begins with an introduction to the thermodynamic principles of refrigeration and thermometry. The basic introduction to the subject will be of value to postgraduate students beginning research in low temperature physics, and to seasoned researchers moving into the field.Betts presents a concise introduction to the experimental technicalities of low and ultralow temperature physics research. He has made extensive use of diagrams as aids to understanding, and refers the reader to the professional literature as soon as the level of the text is high enough. Topics covered include all aspects of low temperature technology, beginning with an introduction to the thermodynamic principles of refrigeration and thermometry. The text also covers the properties of fluid 3He/4He mixtures, and all the means of achieving low temperatures, including dilution and Pomeranchuk refrigeration and adiabatic nuclear demagnetization.Preface; 1. Introduction to refrigeration and thermometry; 2. Properties of fluid 3He/4He mixtures; 3. Dilution refrigeration; 4. The Pomeranchuk refrigerator; 5. Adiabatic nuclear demagnetisation; 6. Thermometry; References; Index. ...a pleasure to read, and the reader can absorb an impressive amount of information with little effort. Physics Today I have no hesitation in recommending this book to anyone seeking an ul3Å