29 citations · 71 across the 10 of their papers we have counts for
10 papers
Influence of material parameters on the performance of niobium based superconducting RF cavities
Arup Ratan Jana, Abhay Kumar, Vinit Kumar +1
A detailed thermal analysis of a Niobium (Nb) based superconducting radio frequency (SRF) cavity in a liquid helium bath is presented, taking into account the temperature and magne…
Multipacting studies of beta_g=0.61 and beta_g =0.9, 650 MHz Elliptical SRF Cavities
Ram Prakash, Arup Ratan Jana, Vinit Kumar
Multipacting is seen as a performance limiting phenomenon for the superconducting radio frequency (SRF) cavities. Numerical simulations are essential to pre-empt the experimentally…
Reference Physics Design for 1 GeV Injector Linac and Accumulator Ring for Indian Spallation Neutron Source
Amalendu Sharma, Arup Ratan Jana, Chirag Bhai Patidar +9
As a part of the ongoing XIIth plan project titled "R&D activities for high energy proton linac based spallation neutron source", the work on physics design of various subsystems o…
Terahertz radiation source using an industrial electron linear accelerator
Yashvir Kalkal, Vinit Kumar
High power ( kW) industrial electron linear accelerators (linacs) are used for irradiation applications e.g., for pasteurization of food products, disinfection of medical…
Čerenkov free-electron laser in side-wall configuration
Yashvir Kalkal, Vinit Kumar
In this paper, we have proposed a Čerenkov free-electron laser (CFEL) with metallic side walls, which are used to confine an electromagnetic surface mode supported by a thin dielec…
Three-dimensional analysis of the surface mode supported in Čerenkov and Smith-Purcell free-electron lasers
Yashvir Kalkal, Vinit Kumar
In Čerenkov and Smith-Purcell free-electron lasers (FELs), a resonant interaction between the electron beam and the co-propagating surface mode can produce copious amount of cohere…
Analysis of Čerenkov free-electron lasers
Yashvir Kalkal, Vinit Kumar
We present an analysis of a Čerenkov free-electron laser (FEL) driven by a flat electron beam. In this system, an electron beam travelling close to a dielectric slab placed at the…
On the Electromagnetic Design of a Beta_g= 0.61, 650 MHz Superconducting Radiofrequency Cavity
Arup Ratan Jana, Vinit Kumar
We present the calculations for electromagnetic design of a Beta_g = 0.61, multi-cell superconducting radiofrequency cavity for the Indian Spallation Neutron Source (ISNS) project.…
A Study of Dynamic Lorentz Force Detuning of 650 MHz βg= 0.9 Superconducting Radiofrequency Cavity
Abhay Kumar, Arup Ratan Jana, Vinit Kumar
The small bandwidth of superconducting cavities makes the study of dynamic Lorentz force detuning and its compensation indispensable in case of pulsed mode operation of high gradie…
Optical Klystron Enhancement to SASE X-ray FELs
Yuantao Ding, Paul Emma, Zhirong Huang +1
The optical klystron enhancement to self-amplified spontaneous emission (SASE) free electron lasers (FELs) is studied in theory and in simulations. In contrast to a seeded FEL, the…