This book highlights the emission, transmission, and launching of an electron beam. It presents an overview and recent advances in order to enhance knowledge in the field of gyrotron in general and electron gun in particular. The book is presented in seven chapters starting with the introduction and ending with future possible directions in the field of electron beams and gyrotrons.

Dr. Udaybir Singh received his Ph.D. in physics from Gurukul Kangri University, Haridwar, India, in 2012. He worked in the field of Microwave Tube Area for 10 years at CSIR- Central Electronics Engineering Research Institute (CEERI), Pilani, India. Currently he is working in the field of Photonics and ubiquitous analytical techniques at CSIR- Central Scientific Instruments Organization (CSIO), Chandigarh. He has published more the 100 research papers in in peer-reviewed journals and conference proceedings.

Prof. A. K. Sinha received his Ph.D. degree from Ranchi University, India, in 1986. He has authored or coauthored more than 200 research papers in peer-reviewed journals and conference proceedings. His major fields of research include megawatt tubes, megawatt applications, and mathematical modeling in general and TWT and gyrodevices.​