Flux estimation from Vanadium and Cobalt Self Powered Neutron Detectors (SPNDs): Nonlinear exact inversion and Kalman filter approaches. - Krishnan Srinivasarengan; Laxman Mutyam; Madhu N. Belur; Mani Bhushan; A. P. Tiwari; M. G. Kelkar; M. Pramanik (ACC, 2012)