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The Influence of Low‐Frequency Oscillations on the Storage Time of Ultracold Neutrons The Relation to the Low‐Tebmperature Specific Heat Anomaly Of Disordered Solids
Author(s) -
Ignatovich V. K.
Publication year - 1975
Publication title -
physica status solidi (b)
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.51
H-Index - 109
eISSN - 1521-3951
pISSN - 0370-1972
DOI - 10.1002/pssb.2220710208
Subject(s) - ultracold neutrons , anomaly (physics) , low frequency , neutron , physics , vibration , atomic physics , condensed matter physics , nuclear physics , quantum mechanics , astronomy
The influence of the low‐frequency spectrum of solids on the heating of ultracold neutrons (UCN) per single interaction with the wall is reported. It is shown that the anomalously short storage time in traps can beexplained by UCN heating if there are clusters near the surface of the solid matter, vibrating at a frequency of 10 10 Hz. The comparison withthe experimental data of the measurements of the heat capacities of disordered solids carried out at low temperature permits to make the conclusion that the clusters should be of about 70 to 60 Å. The influence on the UCN heating of other possible low‐frequency vibrations inside the solid matter is considered as well.