time-of-flight spectrometer definition of time-of-flight spectrometer in the Free Online Encyclopedia.

time-of-flight spectrometer [¦tīm əv ¦flīt spek′träm·əd·ər]

(engineering)

Any instrument in which the speed of a particle is determined directly by measuring the time it takes to travel a measured distance.

Time-of-flight spectrometer

Any of a general class of instruments in which the speed of a particle is determined directly by measuring the time that it takes to travel a measured distance. By knowing the particle's mass, its energy can be calculated. If the particles are uncharged (for example, neutrons), difficulties arise because standard methods of measurement (such as deflection in electric and magnetic fields) are not possible. The time-of-flight method is a powerful alternative, suitable for both uncharged and charged particles.

The time intervals are best measured by counting the number of oscillations of a stable oscillator that occur between the instants that the particle begins and ends its journey. Oscillators operating at 100 MHz are in common use. See Mass spectroscope, Neutron spectrometry, Time-interval measurement

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No references found	Students performed a variety of hands-on experiments using five of NCNR's state-of-the-art neutron scattering instruments: the disk-chopper time-of-flight spectrometer, the filter-analyzer spectrometer, the high-flux backscattering spectrometer, the neutron spin-echo spectrometer, and the spin-polarized inelastic neutron scattering spectrometer. WANT SKILLS IN NEUTRON SPECTROSCOPY? GO TO SUMMER SCHOOL! by Journal of Research of the National Institute of Standards and Technology Our QENS measurements were performed using a multidetector time-of-flight spectrometer NURMEN with an absolute energy resolution of 0. Neutron transmission and quasi-elastic neutron scattering in polymer ... by Klepko, V. / Polymer Engineering and Science The first experiment, a study of the molecular dynamics of alpha-lactalbumin, has recently been performed on the disk chopper time-of-flight spectrometer (DCS) at the NIST Center for Neutron Research (NCNR). NEW NEUTRON SPECTROMETER COMMISSIONED AT NCNR by Journal of Research of the National Institute of Standards and Technology	time-delay circuit time-delay fuse Time-Delay Relay time-derived channel time-distance graph time-division time-division data links time-division multiple access time-division multiplexing time-division multiplier time-division sound time-division switching system time-domain reflectometer Time-Frequency-Division Multiplexing time-height section time-interval measurement time-interval radiosonde time-invariant system Time-Lapse Photography time-mark generator time-motion study time-multiplexing time-of-day clock time-of-day server time-of-flight mass spectrometer time-of-flight spectrometer time-out time-projection chamber time-pulse distributor Time-Pulse Transmitter time-resolved laser spectroscopy time-reversal invariance time-reversal reflection time-reversal test time-rock unit time-series analysis time-share time-shared amplifier time-sharing time-stratigraphic facies time-stratigraphic unit time-transgressive time-varying system time-weighted average timelike path timelike surface timelike vector timely completion timeout Timer timer clock	time-locked time-locking time-locks Time-Lost Proto Drake time-mark generator Time-memory tradeoff time-motion study time-motion study Time-Multiplex Switch Time-Multiplexed Communication Channel Time-Multiplexed Pilot Channel Time-multiplexing Time-Not-Ready Time-Not-Ready-Giveup time-of-day clock time-of-day server Time-Of-Day/Day-Of-Week Time-of-flight Time-of-flight Time-Of-Flight Isochronous Time-of-flight mass spectrometer Time-of-flight mass spectrometry time-of-flight mass spectroscopy Time-of-Flight Secondary Ion Mass Spectrometer Time-Of-Flight Secondary Ion Mass Spectroscopy time-of-flight spectrometer Time-of-Flight Spectrum Time-Off Award Time-On-Wing Time-Optimal Linear Scheduling Time-Orbiting Potential time-out time-out time-out time-out time-out Time-out Reversal Time-Out Timer Time-outs Time-outs Time-outs Time-outs Time-outs Time-Phase Force Deployment Data Editor Time-Phased Budget Time-Phased Flow of Information for PBA Time-Phased Force & Deployment Data Time-Phased Force & Deployment List time-phased force and deployment data time-phased force and deployment data maintenance time-phased force and deployment data refinement time-phased force and deployment list Time-Phased Force Deployment Time-Phased Force Deployment Data Time-Phased Force Deployment Document Time-Phased Response

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Students performed a variety of hands-on experiments using five of NCNR's state-of-the-art neutron scattering instruments: the disk-chopper time-of-flight spectrometer, the filter-analyzer spectrometer, the high-flux backscattering spectrometer, the neutron spin-echo spectrometer, and the spin-polarized inelastic neutron scattering spectrometer.

WANT SKILLS IN NEUTRON SPECTROSCOPY? GO TO SUMMER SCHOOL! by Journal of Research of the National Institute of Standards and Technology

Our QENS measurements were performed using a multidetector time-of-flight spectrometer NURMEN with an absolute energy resolution of 0.

Neutron transmission and quasi-elastic neutron scattering in polymer ... by Klepko, V. / Polymer Engineering and Science

The first experiment, a study of the molecular dynamics of alpha-lactalbumin, has recently been performed on the disk chopper time-of-flight spectrometer (DCS) at the NIST Center for Neutron Research (NCNR).

NEW NEUTRON SPECTROMETER COMMISSIONED AT NCNR by Journal of Research of the National Institute of Standards and Technology

time-division data links

time-division multiple access

time-division multiplexing

time-division multiplier

time-division sound