I have shown that a field-expansion spectrometer with a long drift distance to measure proton time of flight
is an attractive approach to measure the electron-neutrino correlation in neutron beta decay.
5, the time of flights
for protons that undergo a reversal are much longer than the coincidence time window of approximately 100 [micro]s; therefore, for the selected spectrometer geometry, no reversed protons are detected.
A resonant radio frequency (RF) spin flipper, consisting of a 30 cm diameter by 30 cm long solenoid whose magnetic field amplitude is tailored as a function of time of flight
to flip neutron spins of all energies, is located upstream of the target.
Contract notice: Atmospheric Pressure Interface Time of Flight
Mass Spectrometer (ApiToF/MS).
In time of flight
(TOE) mass separation the higher the ion mass the slower it is moving when it reaches the detector (for a fixed acceleration voltage).
Contract notice: Ion mobility quadrupole time of flight
mass spectrometry for metabolomic studies.
Prior Information Notice: Kvalab - "ion mobility quadrupole time of flight
mass spectrometry ion mobility" for metabolomic studies.