Neutron Emission Spectrometry (NES) is a powerful tool for the diagnosis of fusion plasmas, yielding information about e.g. the plasma ion temperature or contributions to the neutron spectrum from reactions between fuel ions with different energies, resulting from different plasma heating schemes. At JET, NES has proven its potential with the MPR spectrometer which has been designed for measurements of 14MeV neutrons produced in d + t Æ a + n reactions in DT plasmas. As part of the enhanced capabilities programme, JET is equipped with two new NES systems. One of those is an upgrade of the MPR, the other is TOFOR, a new Time-Of-Flight (TOF) spectrometer which is Optimized (O) for high count Rates (R). TOFOR is designed for the diagnosis of 2.45MeV neutrons from d + d Æ 3He + n reactions in D plasmas with good statistical accuracy and time resolution.