{"title":"On a New Possibility of Pulsed Accumulation of Ultra Cold Neutrons in a Trap","authors":"A. I. Frank, G. V. Kulin, M. A. Zakharov","doi":"10.1134/S1547477123040295","DOIUrl":null,"url":null,"abstract":"<p>The concept of an ultracold neutron (UCN) source is considered based on the deceleration of very cold neutrons (VCNs) by a local decelerating device. The latter is proposed to be a gradient spin flipper. It is shown that, in this case, the flux of VCNs, which are converted to UCNs after deceleration, has a pulsed structure, and the duration of neutron bunches can be significantly shorter than their repetition period. Accordingly, the density of the neutron flux in the bunch significantly exceeds the average value. This opens up the possibility of the pulsed filling of the UCN trap without preliminary time focusing.</p>","PeriodicalId":730,"journal":{"name":"Physics of Particles and Nuclei Letters","volume":"20 4","pages":"664 - 667"},"PeriodicalIF":0.4000,"publicationDate":"2023-08-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Physics of Particles and Nuclei Letters","FirstCategoryId":"1085","ListUrlMain":"https://link.springer.com/article/10.1134/S1547477123040295","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q4","JCRName":"PHYSICS, PARTICLES & FIELDS","Score":null,"Total":0}
引用次数: 0
Abstract
The concept of an ultracold neutron (UCN) source is considered based on the deceleration of very cold neutrons (VCNs) by a local decelerating device. The latter is proposed to be a gradient spin flipper. It is shown that, in this case, the flux of VCNs, which are converted to UCNs after deceleration, has a pulsed structure, and the duration of neutron bunches can be significantly shorter than their repetition period. Accordingly, the density of the neutron flux in the bunch significantly exceeds the average value. This opens up the possibility of the pulsed filling of the UCN trap without preliminary time focusing.
期刊介绍:
The journal Physics of Particles and Nuclei Letters, brief name Particles and Nuclei Letters, publishes the articles with results of the original theoretical, experimental, scientific-technical, methodological and applied research. Subject matter of articles covers: theoretical physics, elementary particle physics, relativistic nuclear physics, nuclear physics and related problems in other branches of physics, neutron physics, condensed matter physics, physics and engineering at low temperatures, physics and engineering of accelerators, physical experimental instruments and methods, physical computation experiments, applied research in these branches of physics and radiology, ecology and nuclear medicine.