NEUTRON NOISE SPECTRAL FEATURES OF SIMULATED MECHANICAL AND THERMAL-HYDRAULIC PERTURBATIONS IN A PWR COREL.A Torres, D. Chionis, C. Montalvo, A. Dokhane and A. García-BerrocalEPJ Web Conf., 247 (2021) 21001DOI: https://doi.org/10.1051/epjconf/202124721001