Diffraction of ultracold neutrons on a moving grating and neutron focusing in time

Balashov, S.; Bondarenko, I. V.; Frank, A. I.; Geltenbort, P.; Høghøj, Peter; Kulin, G. V.; Masalovich, S.; Nosov, V. G.; Strepetov, A. N.

doi:10.1016/j.physb.2004.04.038

Cited by 17 publications

(6 citation statements)

References 19 publications

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“…The resulting energy spread of the matter wave could be detected using a high-resolution time-of flight instrument [71,21,72] and was shown to be in agreement with previous theoretical insight [68][69][70]13,14]. The interaction with a grating moving across a beam of ultracold neutrons similarly induces an energy spreading measured in [252].…”

Section: Methodssupporting

confidence: 84%

Quantum transients

2009

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Quantum transients are temporary features of matter waves before they reach a stationary regime. Transients may arise after the preparation of an unstable initial state or due to a sudden interaction or a change in the boundary conditions. Examples are diffraction in time, buildup processes, decay, trapping, forerunners or pulse formation, as well as other phenomena recently discovered, such as the simultaneous arrival of a wave peak at arbitrarily distant observers. The interest on these transients is nowadays enhanced by new technological possibilities to control, manipulate and measure matter waves.Comment: review article, 76 pp, 36 figures, more content, typos correcte

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Section: Methodssupporting

confidence: 84%

Quantum transients

2009

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“…Later on, the non-stationary diffraction of UCNs by a moving grating was observed in the experiment described in [22], and after some time, using aperiodic moving grating, the effect of focusing in time was demonstrated in experiments [23,24]. The possibility of time focusing based on the resonant spin-flip of the neutron has also been experimentally confirmed [25,26].…”

Section: Time Lens and Methods For Changing The Neutron Energymentioning

confidence: 89%

On the possibility of creating a UCN source on a periodic pulsed reactor

Frank¹,

Kulin²,

Rebrova³

et al. 2021

Preprint

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“…Neutron Fabry-Perot interferometers (FPI) also referred as neutron interference filters (NIF) as well as more complex multilayered structures were many times used for the UCN spectrometry [30][31][32][33][34][35][36][37][38][39][40][41]. In context of the device to be discussed in the present paper they also play an important role.…”

Section: Neutron Fabry-perot Interferometers and Other Multilayered Smentioning

confidence: 99%

Spectrometer for new gravitational experiment with UCN

Kulin

Frank

Goryunov

et al. 2015

Nuclear Instruments and Methods in Physics Research Section A:

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We describe an experimental installation for a new test of the weak equivalence principle for neutron. The device is a sensitive gravitational spectrometer for ultra-cold neutrons allowing to precisely compare the gain in kinetic energy of free falling neutrons to quanta of energy ${\hbar}{\Omega}$ transferred to the neutron via a non stationary device, i.e. a quantum modulator. The results of first test experiments indicate a collection rate allowing measurements of the factor of equivalence $ { \gamma}$ with a statistical uncertainty in the order of $5{\times}10^{-3}$ per day. A number of systematic effects were found, which partially can be easily corrected. For the elimination of others more detailed investigations and analysis are needed. Some possibilities to improve the device are also discussed.Comment: Submitted to NIM

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Diffraction of ultracold neutrons on a moving grating and neutron focusing in time

Cited by 17 publications

References 19 publications

Quantum transients

Quantum transients

On the possibility of creating a UCN source on a periodic pulsed reactor

Spectrometer for new gravitational experiment with UCN

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