Effect of ionizing radiation among the occupational workers in five selected Hospital in Dhaka Bangladesh is written with simplest explanations in enlightened health workers and students in the globe. The book is aiming to cover the need for researchers and readers in the field of physics, medical science and chemistry.The book Consists of five Chapters in which each chapter is Divided into Sub section , each section contains comprehensive analysis of the topic. Chapter one details in general introduction of radiation, chapter two discusses the major aspect of radiation physics experimental method in the effect of ionizing radiation and a brief review of related workers. Chapter three is methodology and technique of analysing hazardous Health Effects of radiation to the Occupational workers. Chapter four is the analysis and implications of the findings obtained from the measurements of radiation levels to the workers in hospitals while the final chapter is the summary, conclusionand recommendation of the book.