  In this paper, the detection efficiency of a large area neutron sensitive
microchannel plate detector has been evaluated. A 6LiF/ZnS detector was
employed as the benchmark detector, the TOF spectra of these two detectors were
simultaneously measured and the energy spectra were then deduced to calculate
the detection efficiency curve of the nMCP detector. Tests show the detection
<EMAIL_ADDRESS>meV thermal neutron is 34% for this nMCP detector.
