Journal of Low Temperature Physics最新文献_第10页

Development of a Dual Cryogenic Detection System for the Forbidden Non-unique (beta)-Decay Spectrum Study 为禁止非唯一 $$beta$$ - 衰变频谱研究开发双低温探测系统

IF 1.1 3区物理与天体物理

Journal of Low Temperature Physics Pub Date : 2024-05-19 DOI: 10.1007/s10909-024-03139-5

H. L. Kim, H. J. Kim, W. T. Kim, Y. D. Kim, Y. H. Kim, M. H. Lee, Y. C. Lee, S. S. Nagorny, V. N. Shlegel, J. So

{"title":"Development of a Dual Cryogenic Detection System for the Forbidden Non-unique (beta)-Decay Spectrum Study","authors":"H. L. Kim, H. J. Kim, W. T. Kim, Y. D. Kim, Y. H. Kim, M. H. Lee, Y. C. Lee, S. S. Nagorny, V. N. Shlegel, J. So","doi":"10.1007/s10909-024-03139-5","DOIUrl":"10.1007/s10909-024-03139-5","url":null,"abstract":"<div>We present the development of a dual-detector system designed for investigating the spectral shape of forbidden non-unique beta decays. Two PbMoO(_4) scintillating crystals were carefully prepared for heat and light detection at milli-Kelvin (mK) temperatures. Notably, one crystal was synthesized using archaeological lead, while the other was composed of natural modern lead. The significance of employing two crystals lies in their identical dimensions and proximity, resulting in similar environmental background exposure. Their distinct internal radioactivities, particularly associated with (^{210})Pb, introduce a distinguishing factor between the spectra measured in the two detectors. Our detection method includes achieving clear particle identification through the relative amplitudes of light and heat signals for both crystals. This report compares the electron-induced spectra within energy regions both below and above the endpoint of (^{210})Bi beta decay. This comparative study provides valuable insights into an exact measurement of the (^{210})Bi decay spectrum, forbidden non-unique beta decay.</div>","PeriodicalId":641,"journal":{"name":"Journal of Low Temperature Physics","volume":"216 Part 3","pages":"328 - 335"},"PeriodicalIF":1.1,"publicationDate":"2024-05-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141062015","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Effects of Stray Magnetic Field on Transition-Edge Sensors in Gamma-Ray Microcalorimeters 杂散磁场对伽马射线微量热仪过渡边缘传感器的影响

IF 1.1 3区物理与天体物理

Journal of Low Temperature Physics Pub Date : 2024-05-19 DOI: 10.1007/s10909-024-03140-y

Mark W. Keller, A. L. Wessels, D. T. Becker, D. A. Bennett, M. H. Carpenter, M. P. Croce, J. D. Gard, J. Imrek, J. A. B. Mates, K. M. Morgan, N. J. Ortiz, D. R. Schmidt, K. A. Schreiber, D. S. Swetz, J. N. Ullom

{"title":"Effects of Stray Magnetic Field on Transition-Edge Sensors in Gamma-Ray Microcalorimeters","authors":"Mark W. Keller, A. L. Wessels, D. T. Becker, D. A. Bennett, M. H. Carpenter, M. P. Croce, J. D. Gard, J. Imrek, J. A. B. Mates, K. M. Morgan, N. J. Ortiz, D. R. Schmidt, K. A. Schreiber, D. S. Swetz, J. N. Ullom","doi":"10.1007/s10909-024-03140-y","DOIUrl":"10.1007/s10909-024-03140-y","url":null,"abstract":"<div>Superconducting transition-edge sensors (TESs) used in X-ray and (gamma)-ray microcalorimeters suffer degraded performance if cooled in a magnetic field B sufficient to trap flux in the sensors. We report measurements of (gamma)-ray TESs before and after implementing measures to reduce stray B fields from sources inside and outside the cryostat. These measurements showed a correlation between anomalous features in TES current–voltage (IV) curves and degraded energy resolution. After reducing internal sources of stray B field and improving shielding against external sources, both IV curves and energy resolution improved. Finally, we placed magnetized screws with remnant fields (sim) 10 (upmu textrm{T}) near similar (gamma)-ray TESs in a different type of detector package and observed the same effects.</div>","PeriodicalId":641,"journal":{"name":"Journal of Low Temperature Physics","volume":"216 Part 3","pages":"336 - 343"},"PeriodicalIF":1.1,"publicationDate":"2024-05-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s10909-024-03140-y.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141123705","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Progress Toward Fast Decay Energy Spectroscopy for Actinide Analysis 用于锕系元素分析的快速衰变能谱学研究进展

IF 1.1 3区物理与天体物理

Journal of Low Temperature Physics Pub Date : 2024-05-18 DOI: 10.1007/s10909-024-03132-y

Nathan Hines, S. T. P. Boyd, Geon-Bo Kim

引用次数: 0

Readout System for Frequency-Division Multiplexing Superconducting Detector Arrays 用于频分复用超导探测器阵列的读出系统

IF 1.1 3区物理与天体物理

Journal of Low Temperature Physics Pub Date : 2024-05-18 DOI: 10.1007/s10909-024-03153-7

Xiaohui Yan, Fei Liu, Ran Duan, Xiaoyun Ma, Ruirui Fan, Xiaojing Wu, Yu Wang

{"title":"Readout System for Frequency-Division Multiplexing Superconducting Detector Arrays","authors":"Xiaohui Yan, Fei Liu, Ran Duan, Xiaoyun Ma, Ruirui Fan, Xiaojing Wu, Yu Wang","doi":"10.1007/s10909-024-03153-7","DOIUrl":"10.1007/s10909-024-03153-7","url":null,"abstract":"<div>Superconducting detectors have great potential in detecting microwaves and infrared waves due to their high sensitivity and accuracy in observational results. We have proposed and designed a readout system for frequency-division multiplexing superconducting detector arrays, along with corresponding backend processing and control software. The readout system consists of a baseband signal transmission board, a baseband signal receiver board, an intermediate frequency board, and a server. The baseband signal transmission board and the baseband signal receiver board are designed based on Xilinx radio frequency systems-on-chip. The backend processing and control software has been developed using the Browser/Server architecture. In this study, our designed readout system covers a resonator frequency range of 4–6 GHz or 6–8 GHz, with a multiplexing ratio of 1000:1 for each signal line. The corresponding backend processing and control software can implement functionalities such as system startup, data acquisition, real-time data flow display, I–Q sweep, and nonlinear compensation of the readout system. In the recent experiments, we tested the performance of the entire system and provided the test results for the radio frequency loop test and connecting with superconducting detector array. The experimental results showed that our proposed readout system, aided by the backend processing and control software, is capable of multiplexing readout of large-array frequency-division multiplexing resonators and can be applied in various superconducting detector arrays as well. This system lays a solid foundation for future frequency-division multiplexing readout and large-array readout of superconducting detectors.</div>","PeriodicalId":641,"journal":{"name":"Journal of Low Temperature Physics","volume":"216 3-4","pages":"626 - 642"},"PeriodicalIF":1.1,"publicationDate":"2024-05-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141061970","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Parallel-Plate Capacitor Titanium Nitride Kinetic Inductance Detectors for Infrared Astronomy 用于红外天文学的平行板电容器氮化钛动感探测器

IF 1.1 3区物理与天体物理

Journal of Low Temperature Physics Pub Date : 2024-05-17 DOI: 10.1007/s10909-024-03101-5

J. Perido, P. K. Day, A. D. Beyer, N. F. Cothard, S. Hailey-Dunsheath, H. G. Leduc, B. H. Eom, J. Glenn

{"title":"Parallel-Plate Capacitor Titanium Nitride Kinetic Inductance Detectors for Infrared Astronomy","authors":"J. Perido, P. K. Day, A. D. Beyer, N. F. Cothard, S. Hailey-Dunsheath, H. G. Leduc, B. H. Eom, J. Glenn","doi":"10.1007/s10909-024-03101-5","DOIUrl":"10.1007/s10909-024-03101-5","url":null,"abstract":"<div>The Balloon Experiment for Galactic INfrared Science (BEGINS) is a concept for a sub-orbital observatory that will operate from (lambda) = 25 to 250 (upmu)m to characterize dust in the vicinity of high-mass stars. The mission’s sensitivity requirements will be met by utilizing arrays of 1840 lens-coupled, lumped-element kinetic inductance detectors (KIDs) operating at 300 mK. Each KID will consist of a titanium nitride (TiN) parallel strip absorbing inductive section and parallel plate capacitor deposited on a Silicon (Si) substrate. The parallel plate capacitor geometry allows for reduction of the pixel spacing. At the BEGINS focal plane, the detectors require optical NEPs from (2times 10^{-16}) to (6times 10^{-17}) W/(sqrt{text {Hz}}) from 25 to 250 (upmu)m for optical loads ranging from 4 to 10 pW. We present the design, optical performance and quasiparticle lifetime measurements of a prototype BEGINS KID array at 25 (upmu)m when coupled to Fresnel zone plate lenses. For our optical set up and the absorption efficiency of the KIDs, the electrical NEP requirement at 25 (upmu)m is (7.6times 10^{-17}) W/(sqrt{text {Hz}}) for an absorbed optical power of 0.36 pW. We find that over an average of five resonators the the detectors are photon noise limited down to about 200 fW, with a limiting NEP of about (7.4times 10^{-17}) W/(sqrt{text {Hz}}). Future arrays will be coupled to microlens arrays and have higher optical efficiencies.\u0000</div>","PeriodicalId":641,"journal":{"name":"Journal of Low Temperature Physics","volume":"216 Part 3","pages":"39 - 49"},"PeriodicalIF":1.1,"publicationDate":"2024-05-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141061959","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Characterization of Transition Edge Sensors for Decay Energy Spectrometry 用于衰变能量谱分析的过渡边缘传感器的特性分析

IF 1.1 3区物理与天体物理

Journal of Low Temperature Physics Pub Date : 2024-05-16 DOI: 10.1007/s10909-024-03135-9

Max Carlson, Ryan Fitzgerald, Dan Schmidt, Galen O’Neil

引用次数: 0

Tuning the Superconducting Transition Temperature of Co-sputtered Iridium and Platinum Films 调节共溅镀铱和铂薄膜的超导转变温度

IF 1.1 3区物理与天体物理

Journal of Low Temperature Physics Pub Date : 2024-05-16 DOI: 10.1007/s10909-024-03081-6

V. G. Yefremenko, C. L. Chang, T. W. Cecil, J. S. Jiang, M. Lisovenko, V. Novosad, G. Wang

引用次数: 0

Andreev Conductance in Disordered SF Junctions with Spin-Orbit Scattering 具有自旋轨道散射的无序 SF 结中的安德烈耶夫电导

IF 1.1 3区物理与天体物理

Journal of Low Temperature Physics Pub Date : 2024-05-16 DOI: 10.1007/s10909-024-03145-7

M. E. Ismagambetov, P. M. Ostrovsky, M. V. Feigel’man

{"title":"Andreev Conductance in Disordered SF Junctions with Spin-Orbit Scattering","authors":"M. E. Ismagambetov, P. M. Ostrovsky, M. V. Feigel’man","doi":"10.1007/s10909-024-03145-7","DOIUrl":"10.1007/s10909-024-03145-7","url":null,"abstract":"<div>We calculate the conductance of a junction between a disordered superconductor and a very strong half-metallic ferromagnet admitting electrons with only one spin projection. A usual mechanism of Andreev reflection is strongly suppressed in this case since Cooper pairs are composed of electrons with opposite spins. However, this obstacle can be overcome if we take into account spin-orbit scattering inside the superconductor. Spin-orbit scattering induces a fluctuational (zero on average) spin-triplet component of the superconducting condensate, which is enough to establish Andreev transport into a strong ferromagnet. This remarkably simple mechanism is quite versatile and can explain long-range triplet proximity effect in a number of experimental setups. One particular application of the suggested effect is to measure the spin-orbit scattering time (tau _{text {SO}}) in disordered superconducting materials. The value of Andreev conductance strongly depends on the parameter (Delta tau _text {SO}) and can be noticeable even in very disordered but relatively light metals like granular aluminum.</div>","PeriodicalId":641,"journal":{"name":"Journal of Low Temperature Physics","volume":"217 1-2","pages":"121 - 144"},"PeriodicalIF":1.1,"publicationDate":"2024-05-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s10909-024-03145-7.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141062014","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

QUEST-DMC: Background Modelling and Resulting Heat Deposit for a Superfluid Helium-3 Bolometer QUEST-DMC：超流体氦-3 粒子计的背景建模和热沉积结果

IF 1.1 3区物理与天体物理

Journal of Low Temperature Physics Pub Date : 2024-05-15 DOI: 10.1007/s10909-024-03142-w

S. Autti, A. Casey, N. Eng, N. Darvishi, P. Franchini, R. P. Haley, P. J. Heikkinen, A. Kemp, E. Leason, L. V. Levitin, J. Monroe, J. March-Russel, M. T. Noble, J. R. Prance, X. Rojas, T. Salmon, J. Saunders, R. Smith, M. D. Thompson, V. Tsepelin, S. M. West, L. Whitehead, K. Zhang, D. E. Zmeev

{"title":"QUEST-DMC: Background Modelling and Resulting Heat Deposit for a Superfluid Helium-3 Bolometer","authors":"S. Autti, A. Casey, N. Eng, N. Darvishi, P. Franchini, R. P. Haley, P. J. Heikkinen, A. Kemp, E. Leason, L. V. Levitin, J. Monroe, J. March-Russel, M. T. Noble, J. R. Prance, X. Rojas, T. Salmon, J. Saunders, R. Smith, M. D. Thompson, V. Tsepelin, S. M. West, L. Whitehead, K. Zhang, D. E. Zmeev","doi":"10.1007/s10909-024-03142-w","DOIUrl":"10.1007/s10909-024-03142-w","url":null,"abstract":"<div>We report the results of radioactivity assays and heat leak calculations for a range of common cryogenic materials, considered for use in the QUEST-DMC superfluid (^3)He dark matter detector. The bolometer, instrumented with nanomechanical resonators, will be sensitive to energy deposits from dark matter interactions. Events from radioactive decays and cosmic rays constitute a significant background and must be precisely modelled, using a combination of material screening and Monte Carlo simulations. However, the results presented here are of wider interest for experiments and quantum devices sensitive to minute heat leaks and spurious events, thus we present heat leak per unit mass or surface area for every material studied. This can inform material choices for other experiments, especially if underground operation is considered – where the radiogenic backgrounds will dominate even at shallow depths.</div>","PeriodicalId":641,"journal":{"name":"Journal of Low Temperature Physics","volume":"215 5-6","pages":"465 - 476"},"PeriodicalIF":1.1,"publicationDate":"2024-05-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s10909-024-03142-w.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141062004","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Optimizing Ti/TiN Multilayers for UV, Optical and Near-IR Microwave Kinetic Inductance Detectors 优化用于紫外、光学和近红外微波动感探测器的钛/氮化钛多层膜

IF 1.1 3区物理与天体物理

Journal of Low Temperature Physics Pub Date : 2024-05-15 DOI: 10.1007/s10909-024-03121-1

Gerhard Ulbricht, Mario De Lucia, Jack Piercy, Oisín Creaner, Colm Bracken, Cáthal McAleer, Tom Ray

{"title":"Optimizing Ti/TiN Multilayers for UV, Optical and Near-IR Microwave Kinetic Inductance Detectors","authors":"Gerhard Ulbricht, Mario De Lucia, Jack Piercy, Oisín Creaner, Colm Bracken, Cáthal McAleer, Tom Ray","doi":"10.1007/s10909-024-03121-1","DOIUrl":"10.1007/s10909-024-03121-1","url":null,"abstract":"<div>Microwave Kinetic Inductance Detectors (MKIDs) combine significant advantages for photon detection like single photon counting, single pixel energy resolution, vanishing dark counts and µs time resolution with a simple design and the feasibility to scale up into the megapixel range. But high quality MKID fabrication remains challenging as established superconductors tend to either have intrinsic disadvantages, are challenging to deposit or require very low operating temperatures. As alternating stacks of thin Ti and TiN films have shown very impressive results for far-IR and sub-mm MKIDs, they promise significant improvements for UV, visible to near-IR MKIDs as well, especially as they are comparably easy to fabricate and control. In this paper, we present our ongoing project to adapt proximity coupled superconducting films for photon counting MKIDs. Some of the main advantages of Ti/TiN multilayers are their good control of critical temperature (Tc) and their great homogeneity of Tc even over large wafers, promising improved pixel yield especially for large arrays. We demonstrate the effect different temperatures during fabrication have on the detector performance and discuss excess phase noise observed caused by surface oxidization of exposed Si. Our first prototypes achieved photon energy resolving powers of up to 3.1 but turned out to be much too insensitive. As the work presented is still in progress, we also discuss further improvements planned for the near future.</div>","PeriodicalId":641,"journal":{"name":"Journal of Low Temperature Physics","volume":"216 Part 3","pages":"175 - 184"},"PeriodicalIF":1.1,"publicationDate":"2024-05-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s10909-024-03121-1.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140974588","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0