Patent ID: 7619199

Claim:
A time-resolved measurement apparatus for acquiring position information and timing information of a quantum beam generated due to excitation of a sample, comprising: a signal generator for generating a reference time pulse in synchronization with the excitation of the sample; a detector for detecting the quantum beam and for generating a position signal corresponding to a detection position and a detection timing pulse synchronized with detection timing; a position calculator for calculating the detection position using the position signal; a time difference measuring device for measuring a time difference between the reference time pulse and the detection timing pulse; and a data processor for storing the detection position calculated by the position calculator and the time difference measured by the time difference measuring device, in association with each other, the detector having a position-sensitive electron multiplier tube, the electron multiplier tube having an entrance window that transmits the quantum beam, first and second micro channel plates for generating an electron at a position corresponding to an incidence position of the quantum beam on the entrance window and for multiplying the electron while maintaining the position, and an anode, the first micro channel plate having an input face located opposite and apart from the entrance window, and an output face located opposite and apart from the second micro channel plate, the second micro channel plate having an input face located opposite and apart from the output face of the first micro channel plate, and an output face located opposite and apart from the anode, the detection timing pulse being generated in response to a potential change that occurs when electrons multiplied by the first micro channel plate are emitted from the first micro channel plate, and being fed to the time difference measuring device, and a pulse reading circuit for acquiring a pulse signal in response to the potential change that occurs when electrons multiplied by the first micro channel plate are emitted from the first micro channel plate, the pulse reading circuit being only connected to the output face of the first micro channel plate.