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@inproceedings{karmakar:ipac2021-tupab106, author = {J. Karmakar and S. Ghosh}, title = {{Simulation Calculations of Compact THz Facility at IUAC, New Delhi}}, booktitle = {Proc. IPAC'21}, pages = {1633--1635}, eid = {TUPAB106}, language = {english}, keywords = {undulator, radiation, simulation, electron, optics}, venue = {Campinas, SP, Brazil}, series = {International Particle Accelerator Conference}, number = {12}, publisher = {JACoW Publishing, Geneva, Switzerland}, month = {08}, year = {2021}, issn = {2673-5490}, isbn = {978-3-95450-214-1}, doi = {10.18429/JACoW-IPAC2021-TUPAB106}, url = {https://jacow.org/ipac2021/papers/tupab106.pdf}, note = {https://doi.org/10.18429/JACoW-IPAC2021-TUPAB106}, abstract = {{A compact THz radiation source based on the principle of pre-bunched Free Electron Laser is at the commissioning stage at Inter University Accelerator Centre (IUAC), New Delhi. The facility will generate low emittance train of electron micro-bunches (2, 4, 8 or 16 numbers) from a RF photo-cathode gun in the energy range of 4 to 8 MeV and inject into a compact undulator to generate coherent THz radiation in the frequency range of ~0.18 to 3.0 THz. To optimize the intensity at a given frequency, the beam bunching factor and the betatron oscillation amplitude in the non-wiggling plane of the electronμbunches inside the undulator has been maximized and minimized respectively. The paper presents the optimized beam optics simulation results for two frequencies viz 0.5 and 2 THz. The on-axis radiation spectral intensity computed by in-house developed code using the trajectory data of the beam optics simulation is also presented for the two frequencies.}}, }