Superconducting nano-strip particle detectors

Cristiano, R.; Ejrnæs, M.; Casaburi, A.; Zen, Nobuyuki; Ohkubo, M.

doi:10.1088/0953-2048/28/12/124004

Cited by 21 publications

(15 citation statements)

References 54 publications

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“…The concept of detecting low energy molecules has already found a limited use in high-performance time-of-flight mass spectrometry [ 145 ], particularly in the form of micron-sized superconducting stripline detectors [ 146 , 147 , 148 , 149 ], which demonstrate that parallel superconducting wires provide both, high mass resolution and limited charge state discrimination of ions [ 150 ] or lysozyme molecules—this technology is discussed in greater detail in a review by Cristiano, et al [ 151 ]. It is also worth mentioning that it is here, where MgB 2 -based devices found applications as biomolecular detectors [ 152 ].…”

Section: Particle Detectionmentioning

confidence: 99%

Unconventional Applications of Superconducting Nanowire Single Photon Detectors

et al. 2020

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Superconducting nanowire single photon detectors are becoming a dominant technology in quantum optics and quantum communication, primarily because of their low timing jitter and capability to detect individual low-energy photons with high quantum efficiencies. However, other desirable characteristics, such as high detection rates, operation in cryogenic and high magnetic field environments, or high-efficiency detection of charged particles, are underrepresented in literature, potentially leading to a lack of interest in other fields that might benefit from this technology. We review the progress in use of superconducting nanowire technology in photon and particle detection outside of the usual areas of physics, with emphasis on the potential use in ongoing and future experiments in nuclear and high energy physics.

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Section: Particle Detectionmentioning

confidence: 99%

Unconventional Applications of Superconducting Nanowire Single Photon Detectors

et al. 2020

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“…Devices like superconducting stripline detectors and single-photon detectors [13] can be affected by PSLs since their functioning is based on the appearance of nonzero voltages when a photon or a particle hits them. Besides that, some works showed a dual relationship between PSLs and Josephson junctions, which can be used to develop standard current devices [14,15,16,17,18,19]. Two mechanisms are responsible for the appearance of PSLs, a quantum one [20] originated from a low free-energy barrier, but not zero, and a thermal-activate mechanism [20].…”

Section: Introductionmentioning

confidence: 99%

Kinematic Vortices induced by defects in Gapless Superconductors

Souto,

Duarte,

Sardella

et al. 2021

Preprint

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The generalized time-dependent Ginzburg-Landau (GTDGL) theory was first proposed to describe better gap superconductors and the phenomenon of thermal phase-slips (PSs) in defect-free systems. However, there is a lack of information about studies involving PSs in mesoscopic superconductors with surface defects. Thus, in this work, we simulated samples with two co-linear surface defects consisting of a lower T c superconductor narrowing the sample in its central part. The non-linear GTDGL equations were solved self-consistently under variable applied currents and by considering both gapless and gap-like superconductors. In such systems, the currents passing by the constriction induce the appearance of kinematic vortices even in the gapless sample. The dynamics always occur with a pair forming at opposite edges of the sample and annihilating in the center. It is noticed that the resistive state appears at distinct values of the applied current density for different samples, and the critical current presents a tiny difference between gapless and gap-like samples. It is worth mentioning that parameters such as the size of electrical contacts and constriction affect the critical current and the average velocity of the kinematic vortices.

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“…An interesting and extensive discussion of the two approaches related to the operation of superconducting strip particle detectors can be found in [21], where the situation is described in some detail and estimates are made of the various time scales involved. For quite recent work on this subject, see also [22]. These authors provide an extensive, up-to-date review more oriented towards photon detection and also discuss, in detail, the realization of multiple devices for single-photon counting.…”

Section: Introductionmentioning

confidence: 99%

Superconducting Strips: A Concept in Thermal Neutron Detection

Merlo

2018

Instruments

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Abstract:In the never-ending quest for better detection efficiency and spatial resolution, various thermal neutron detection schemes have been proposed over the years. Given the presence of some converting layers (typically boron, but 6 LiF is also widely used nowadays), the shift towards concepts based on solid state detectors has been steadily increasing and ingenious schemes thereby proposed. However, a trade-off has been always sought for between efficiency and spatial resolution; the problem can be (at least partially) circumvented using more elaborate geometries, but this complicates the sample preparation and detector construction. Thus, viable alternatives must be found. What we proposed (and verified experimentally) is a detection scheme based on the superconducting to normal transition. More precisely, using a boron converting layer, the α particles (generated in the (n, α) reaction) crossing a low critical temperature superconducting strip some 10 µm wide have been detected; the process, bolometric in nature and based on the ionization energy loss, is intrinsically fast and the spatial resolution very appealing. In this work, some of the work done so far will be illustrated, together with the principles of the measurement and various related problems. The realization of the detector is based on industrial deposition and photolitographic techniques well within the grasp of a condensed matter laboratory, so that there is substantial room for improvement over our elementary strip geometry. Some of the plans for future work will also be presented, together with some improvements both in the choice of the materials and the geometry of the detector.

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Superconducting nano-strip particle detectors

Cited by 21 publications

References 54 publications

Unconventional Applications of Superconducting Nanowire Single Photon Detectors

Unconventional Applications of Superconducting Nanowire Single Photon Detectors

Kinematic Vortices induced by defects in Gapless Superconductors

Superconducting Strips: A Concept in Thermal Neutron Detection

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