We offer to your attention a preprint “Neutron Focusing in Time and Magnification of the Time Lens” P3-2021-36 published by the JINR Publishing Department. The author is A. I. Frank.
The question of the relationship between the duration of the pulse of the neutron flux generated by the neutron source and the time-image of this pulse formed by a time lens that changes the neutron energy in a certain way is considered. It is shown that the ratio of these magnitudes called time magnification depends not only on the geometric parameters of the device, as previously assumed, but also on the neutron velocity before and after the lens.
The investigation has been performed at the Frank Laboratory of Neutron Physics.
