Indian National Gamma Array at Inter University Accelerator Centre, New Delhi

• Published in: Nuclear instruments & methods in physics research. Section A, Accelerators, spectrometers, detectors and associated equipment Accelerators, spectrometers, detectors and associated equipment, 2010-10, Vol.622 (1), p.281-287
• Main Authors: Muralithar, S., Rani, K., Kumar, R., Singh, R.P., Das, J.J., Gehlot, J., Golda, K.S., Jhingan, A., Madhavan, N., Nath, S., Sugathan, P., Varughese, T., Archunan, M., Barua, P., Gupta, A., Jain, M., Kothari, A., Kumar, B.P.A., Malyadri, A.J., Naik, U.G., Kumar, Raj, Kumar, Rajesh, Zacharias, J., Rao, S., Saini, S.K., Suman, S.K., Kumar, M., Subramaniam, E.T., Venkataramanan, S., Dhal, A., Jnaneswari, G., Negi, D., Raju, M.K., Trivedi, T., Bhowmik, R.K.
• Format: Article
• Language: English
• Subjects: Clover germanium detector array; Compton suppression; Front-end electronics for signal processing; High voltage power supply; In-beam [formula omitted] spectroscopy; Multi-detector array
• ISSN: 0168-9002; 1872-9576
• DOI: 10.1016/j.nima.2010.06.200

A 4π multi-detector gamma-ray spectrometer named the Indian National Gamma Array (INGA) has been set up at the Inter University Accelerator Centre, New Delhi, for nuclear structure studies. The array is designed to incorporate twenty four Compton-suppressed Clover germanium detectors with a total photopeak efficiency ∼5%. The spectrometer along with sub-systems developed in-house like, mechanical support structure, high voltage power supplies, automatic liquid nitrogen filling system, front-end electronics and data acquisition system are described. The mechanical support structure facilitates the use of the Clover Germanium array with a recoil mass separator. The array has been used in a number of nuclear spectroscopic investigations. The in-beam and off-beam performance of the array are reported.