Журнал технической физики最新文献_第8页

Резонансное туннелирование фотонов в слоистых оптических наноструктурах (метаматериалах) 光子层光学纳米手柄共振隧道(元材料)

Журнал технической физики Pub Date : 2023-01-01 DOI: 10.21883/jtf.2023.04.55037.275-22

Михаил Владимирович Давидович

引用次数: 0

Создание второй нейтринной лаборатории на реакторе СМ-3 с целью увеличения точности эксперимента "Нейтрино-4" 在cm -3反应堆上建立第二个中微子实验室，以增加中微子-4实验的准确性。

Журнал технической физики Pub Date : 2023-01-01 DOI: 10.21883/jtf.2023.01.54079.241-22

Анатолий Павлович Серебров, В.Г. Ивочкин, Р. М. Самойлов, А. К. Фомин, В. Г. Зиновьев, С. С. Волков, В.Л. Головцов, Н.В. Грузинский, П.В. Неустроев, Валерий Валерьевич Федоров, И.В. Паршин, А. А. Герасимов, М.Е. Зайцев, М.Е. Чайковский, А. М. Гагарский, А. Л. Петелин, А. Л. Ижутов, М.О. Громов, С.А. Сазонтов, А.А. Тузов, В. И. Рыкалин, Дмитрий Анатольевич Макаренков, А.М. Немерюк, Т. Е. Кузьмина

{"title":"Создание второй нейтринной лаборатории на реакторе СМ-3 с целью увеличения точности эксперимента \"Нейтрино-4\"","authors":"Анатолий Павлович Серебров, В.Г. Ивочкин, Р. М. Самойлов, А. К. Фомин, В. Г. Зиновьев, С. С. Волков, В.Л. Головцов, Н.В. Грузинский, П.В. Неустроев, Валерий Валерьевич Федоров, И.В. Паршин, А. А. Герасимов, М.Е. Зайцев, М.Е. Чайковский, А. М. Гагарский, А. Л. Петелин, А. Л. Ижутов, М.О. Громов, С.А. Сазонтов, А.А. Тузов, В. И. Рыкалин, Дмитрий Анатольевич Макаренков, А.М. Немерюк, Т. Е. Кузьмина","doi":"10.21883/jtf.2023.01.54079.241-22","DOIUrl":"https://doi.org/10.21883/jtf.2023.01.54079.241-22","url":null,"abstract":"In the experiment \"Neutrino-4\" on the search for a sterile neutrino, the effect of oscillations was found at a confidence level of 3 standard deviations. In order to significantly increase the accuracy of the experiment, a second neutrino laboratory is created at the SM-3 reactor (Dimitrovgrad, Russia) and a new neutrino detector is developed. The scintillation-type detector consists of 4 modules having a multi-sectional structure with a horizontal arrangement of 100 sections with PMTs located on both sides of the section. The possibility of increasing the accuracy of the experiment by a factor of 2.7 is shown, which will make it possible to achieve a confidence level of more than 5 standard deviations and answer the question of the existence of a sterile neutrino.","PeriodicalId":24036,"journal":{"name":"Журнал технической физики","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80973075","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Исследование величины и механизма образования заряда атмосферного плазмоида

Журнал технической физики Pub Date : 2023-01-01 DOI: 10.21883/jtf.2023.01.54064.179-22

С. Я. Степанов

{"title":"Исследование величины и механизма образования заряда атмосферного плазмоида","authors":"С. Я. Степанов","doi":"10.21883/jtf.2023.01.54064.179-22","DOIUrl":"https://doi.org/10.21883/jtf.2023.01.54064.179-22","url":null,"abstract":"Продолжено исследование долгоживущего автономного атмосферного плазмоида (Гатчинский плазмоид). Электрический заряд плазмоида обнаружен нами ранее с помощью плазменного зонда. Здесь измерительная аппаратура была усовершенствована, что позволило учесть влияние тока смещения. Измеренный заряд отрицательного плазмоида составлял около -35 nC. Установлено, что плазмоид получает заряд во время протекания тока разряда. После выключения тока заряд не стекает на электроды, предположительно из-за быстрого уменьшения концентрации заряженных частиц и уменьшения проводимости плазмы между плазмоидом и электродами. Показано, что электрический заряд является свойством плазмоида, как это ранее и полагали в отношении шаровой молнии. Ключевые слова: атмосферный плазмоид, высоковольтный разряд, плазменный зонд, шаровая молния, электрический заряд.","PeriodicalId":24036,"journal":{"name":"Журнал технической физики","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80125407","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Аналитические возможности термодесорбционного спектрометра с поверхностно-ионизационным детектированием молекул органических веществ в воздухе 表面电离分子空气中有机物质的表面电离光谱仪分析能力

Журнал технической физики Pub Date : 2023-01-01 DOI: 10.21883/jtf.2023.03.54855.203-22

А.Ш. Раджабов, Улугбек Саидакрамович Хасанов, С.С. Исхакова, Ш. М. Ахмедов, Г.П. Кахраманова, Ш. Дж. Ахунов, Д.Т. Усманов

{"title":"Аналитические возможности термодесорбционного спектрометра с поверхностно-ионизационным детектированием молекул органических веществ в воздухе","authors":"А.Ш. Раджабов, Улугбек Саидакрамович Хасанов, С.С. Исхакова, Ш. М. Ахмедов, Г.П. Кахраманова, Ш. Дж. Ахунов, Д.Т. Усманов","doi":"10.21883/jtf.2023.03.54855.203-22","DOIUrl":"https://doi.org/10.21883/jtf.2023.03.54855.203-22","url":null,"abstract":"Abstract This paper presents the results of research on the development of a mathematical model of thermal desorption spectrometry with a surface ionization method for detecting molecules of organic substances, as well as an analysis of the capabilities of a thermal desorption spectrometer operating on the basis of this method. The mathematical model of the method was developed on the basis of the regularities of thermal desorption spectrometry, as well as the regularities of surface ionization of molecules of organic substances under non-stationary conditions. The spectrometer consists of a surface ionization detector and an evaporator of substances heated in a thermally programmed mode. The adjustment and selection of the operating mode of the spectrometer were carried out on the basis of the mathematical model of the method. The analytical capabilities of the spectrometer were studied by comparing the thermodesorption spectra of a mixture of chromatographically pure cannabinoids and an extract of the biological fluids of a marijuana user (blood, urine), as well as the spectra of chromatographically pure morphine and urine extracts of a heroin user. The results of the analysis showed the perspectives of the proposed method and instrument for the detection and analysis of drugs and psychotropic drugs in extracts of biomaterials of consumers of these substances without chromatographic separation.","PeriodicalId":24036,"journal":{"name":"Журнал технической физики","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80744850","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Pyroelectric effect in doped nonpolar glycine crystals 掺杂非极性甘氨酸晶体的热释电效应

Журнал технической физики Pub Date : 2023-01-01 DOI: 10.21883/tp.2023.05.56076.214-22

None G.U. Sotnikova, None P.S. Zelenovskiy, None A.D. Ushakov, None G. A. Gavrilov, None V. Shur, None A.L. Kholkin

引用次数: 0

SOT-MRAM Elements Based on Spin Hall Effect : Macrospin Model of Two-Step Switching Control 基于自旋霍尔效应的SOT-MRAM元件:两步切换控制的宏自旋模型

Журнал технической физики Pub Date : 2023-01-01 DOI: 10.21883/tp.2023.05.56071.250-22

None Ostrovskaya N.V., None Skidanov V. A., None Iusipova Iu. A.

{"title":"SOT-MRAM Elements Based on Spin Hall Effect : Macrospin Model of Two-Step Switching Control","authors":"None Ostrovskaya N.V., None Skidanov V. A., None Iusipova Iu. A.","doi":"10.21883/tp.2023.05.56071.250-22","DOIUrl":"https://doi.org/10.21883/tp.2023.05.56071.250-22","url":null,"abstract":"The article presents the results of a qualitative study of the model of a modern magnetic memory cell, in which the spin Hall effect is used for recording. Cells of square cross-section with longitudinal anisotropy of the active layer are considered. Based on the Landau-Lifshitz-Gilbert vector equation, a mathematical model for controlling the process of writing zero and one into a cell is constructed. In the approximation of a uniform distribution of magnetization, a system of equations is derived that describes the dynamics of magnetization under the action of a magnetic field and spin current. The parameters of the qualitatively equivalent dynamics of the model are determined. It has been established that at zero currents and fields in both cases there are two main stable equilibrium positions. These equilibria, depending on the mutual orientation of the magnetization vector of the active and reference layers, correspond to zero and one, written in the cell. The transition from one cell state to another is described by solving a system of differential equations. A bifurcation diagram of a dynamical system in the variables &quot;field-current&quot; is constructed. It is shown that with a given configuration of the memory element, external influences transfer the magnetization to an intermediate state in the plane of the free layer, which, when the current and field are turned off, leads to writing zero or one to the memory cell. The critical switching current is estimated as a function of the applied external magnetic field. Keywords: spintronics, orbitronics, magnetization, Landau-Lifshitz-Gilbert equation, spin Hall effect, spin current, charge current, spin torque, longitudinal anisotropy, planar anisotropy.","PeriodicalId":24036,"journal":{"name":"Журнал технической физики","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135988429","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Spall strength of polycarbonate at a temperature of 20-185-=SUP=-o-=/SUP=-C 聚碳酸酯在20-185-=SUP=-o-=/SUP=- c温度下的剥落强度

Журнал технической физики Pub Date : 2023-01-01 DOI: 10.21883/tp.2023.05.56068.10-23

None Cherepanov I. A., None Savinykh A.S., None Garkushin G. V., None Razorenov S. V.

引用次数: 0

Расчетно-экспериментальная оценка реакции волоконного лазера на импульсное воздействие тормозного излучения 纤维激光对制动辐射脉冲影响的估计实验反应评估

Журнал технической физики Pub Date : 2023-01-01 DOI: 10.21883/jtf.2023.09.56224.35-23

С.М. Дубровских, О.В. Ткачев, В.П. Шукайло, А.Н. Слобожанин, А. Н. Афанасьев

引用次数: 0

Изменение люминесценции тонких нанокристаллических пленок перовскита CsPbBr-=SUB=-3-=/SUB=- в ходе реакции анионного обмена in situ 在situ的阴离子交换反应中改变了过氧化氢薄膜的发光

Журнал технической физики Pub Date : 2023-01-01 DOI: 10.21883/jtf.2023.02.54501.240-22

Д.Г. Гулевич, Анатолій Арсентійович Ткач, И. Р. Набиев, В. А. Кривенков, П. С. Самохвалов

{"title":"Изменение люминесценции тонких нанокристаллических пленок перовскита CsPbBr-=SUB=-3-=/SUB=- в ходе реакции анионного обмена in situ","authors":"Д.Г. Гулевич, Анатолій Арсентійович Ткач, И. Р. Набиев, В. А. Кривенков, П. С. Самохвалов","doi":"10.21883/jtf.2023.02.54501.240-22","DOIUrl":"https://doi.org/10.21883/jtf.2023.02.54501.240-22","url":null,"abstract":"Inorganic perovskite CsPbX3 nanocrystals (PNCs), where X is a halide anion, are currently promising materials for a wide range of optoelectronic devices. One of the key tasks to be solved before they are used in practice is to obtain stable thin PNC films whose luminescence wavelength could be finely tuned. The chemical composition of CsPbX3 PNCs is the main parameter determining their band gap width and, hence, the position of their photoluminescence maximum. Variation of the PNC composition in the course of their synthesis or postsynthetic treatment in solution makes it possible to obtain CsPbBr(3–x)Ix and CsPbBr(3–y)Cly materials emitting in the entire visible spectral range. In addition, these PNCs are more structurally stable than CsPbCl3 and CsPbI3 ones. However, most exchange reactions in solution reported in published studies are spontaneous and poorly controllable. In this study, the anion exchange reaction is proposed to be carried out directly on the formed thin film of CsPbBr3 incorporated in the matrix of a copolymer of methyl and lauryl methacrylates. The exchange reactions with octadecylammonium iodide and PbI2 leading to a shift of the photoluminescence maxima to longer wavelengths by 130 and 137 nm within 15 and 6 min, respectively. The study also shows the possibility of carrying out an ion exchange reaction on a substrate mimicking the real structure of a light-emitting diode.","PeriodicalId":24036,"journal":{"name":"Журнал технической физики","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"91128425","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

О формировании траектории оси лазерного излучения в дифференциальной кювете Андерсона 在安德森微分沟渠中形成激光轴轨迹

Журнал технической физики Pub Date : 2023-01-01 DOI: 10.21883/jtf.2023.01.54073.223-22

Анатолий Асирович Гольдберг, Р. В. Давыдов, И.Д. Кочетков, В. В. Давыдов, Д.С. Проводин

{"title":"О формировании траектории оси лазерного излучения в дифференциальной кювете Андерсона","authors":"Анатолий Асирович Гольдберг, Р. В. Давыдов, И.Д. Кочетков, В. В. Давыдов, Д.С. Проводин","doi":"10.21883/jtf.2023.01.54073.223-22","DOIUrl":"https://doi.org/10.21883/jtf.2023.01.54073.223-22","url":null,"abstract":"The necessity of studying the nature of the propagation of the maximum of the laser radiation pattern in the Anderson differential cell is substantiated. A new technique has been developed for conducting these studies, which takes into account all factors when constructing the trajectory of the maximum laser radiation in the cuvette, as well as outside it (up to the sensor of the photodiode line, on which the radiation is recorded). For the first time, an equation was derived to study the change in the nature of the propagation trajectory of the maximum of laser radiation in the Anderson cell, and beyond it, depending on its various parameters, the values of the refractive indices of the reference ns and the liquid medium under study, nm. The results of checking the reliability of the developed equation are presented. For the first time, a 12th degree polynomial was obtained for Anderson's differential cell with respect to the refractive index of the medium under study to obtain an analytical solution of the developed equation. This solution will provide additional information about the physics of the processes under consideration and the relationships between different quantities.","PeriodicalId":24036,"journal":{"name":"Журнал технической физики","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89556717","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0