Current-Biased Transition Edge Detector of $ \hbox{MgB}_{2}$ Nanowires for Neutrons: Imaging by Scanning Laser

Yagi, Ikutaro; Yoshioka, N.; Shishido, Hiroaki; Yotsuya, Tsutomu; Miki, Shigehito; Wang, Zhen; Ishida, Toshimasa

doi:10.1109/tasc.2013.2242193

Cited by 12 publications

(3 citation statements)

References 6 publications

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“…Much faster response time is desired for counting high-intensity neutron beam for more effective use of neutrons. We developed a superconducting detector for sensing neutrons with high-spatial resolution and fast response time, and first succeeded in detecting the neutrons using an MgB2 thin film in our preceding works [4][5][6]. We also developed a superconducting neutron detector using a Nb-based current-biased kinetic inductance detector (CB-KID) with a 10 B conversion layer [7][8][9][10].…”

Section: Introductionmentioning

confidence: 99%

Neutron signal features of Nb-based kinetic inductance detector with ¹⁰B convertor

Miki

Yamaguchi

Iizawa

et al. 2018

J. Phys.: Conf. Ser.

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Abstract. In our preceding works, we demonstrated successful neutron detection using a superconducting current-biased kinetic inductance detector (CB-KID), which is composed of two Nb-based superconducting meanderlines and the 10 B neutron absorption layer. The CB-KID with a 10 B absorption layer outputs the voltage pulses when it is irradiated by pulsed neutrons. We expected that the voltage V is proportional to a product of the bias current Ib and a time derivative of the local kinetic inductance dΔLk/dt, and a pair of signals propagate along the Nb stripline as an electromagnetic wave at a certain fraction of the light velocity c toward end electrodes. It still remains to be revealed why the signal voltage shows such a continuum in the histogram of the signal height even if the incident energy of the light ion is apparently monochromatic. In the present work, we investigated the distribution of the height and width of the signal. We found a clear correlation between height and width, which might be a key of understanding the operating principle of our detector. We consider that the origin of the signal distribution is due to the positional dependence of the light ion bombardment with respect to the meandering Nb nanowire.

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Section: Introductionmentioning

confidence: 99%

Neutron signal features of Nb-based kinetic inductance detector with ¹⁰B convertor

Miki

Yamaguchi

Iizawa

et al. 2018

J. Phys.: Conf. Ser.

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“…We have proposed superconducting neutron detectors utilizing the nuclear reaction between 10 B and neutrons [14][15][16]. The current-biased transition edge detector (CB-TED), which is similar to the voltage-biased TES, becomes resistive due to the finite temperature increase induced by the incident neutron if the CB-TED is kept at a temperature just below T c .…”

Section: Introductionmentioning

confidence: 99%

Neutron detection using the superconducting Nb-based current-biased kinetic inductance detector

Shishido

Yamaguchi

Miki

et al. 2017

Supercond. Sci. Technol.

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We demonstrate neutron detection using a solid-state 3He-free superconducting current-biased kinetic inductance detector (CB-KID), which consists of a superconducting Nb meander line and 10B neutron absorption layer. The CB-KID is based on the transient process of kinetic inductance of Cooper pairs induced by the nuclear reaction between 10B and neutrons. Therefore, the CB-KID can be operated in a wide superconducting region in the bias current–temperature diagram, as demonstrated in this paper. The transient change of the kinetic inductance induces the electromagnetic wave pulse under a DC bias current. The signal propagates along the meander line toward both sides with opposite polarity, where the signal polarity is dominated by the bias current direction. The full width at half maximum of the signals remains on the order of a few tens of ns, which confirms the high-speed operation of our detectors. We determine the neutron incident position within 1.3 mm accuracy in one dimension using the multichannel CB-KIDs.

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“…However, spatial resolution remains on the scale of several tens µm even in high-end neutron detectors, and much faster response time is required for high-intensity neutron beam to detect a large number of neutrons without losing counts [3]. We developed a superconducting detector for sensing neutrons with high-spatial resolution and fast response time, and succeeded in detecting the neutrons using MgB 2 thin film in our preceding works [4][5][6].…”

Section: Introductionmentioning

confidence: 99%

Time-Dependent Flux from Pulsed Neutrons Revealed by Superconducting Nb Current-Biased Kinetic Inductance Detector with¹⁰B Converter Operated at 4 K

Miyajima¹,

Narukami²,

Shishido³

et al. 2015

Proceedings of the 2nd International Symposium on Science at J-Parc — Unlocking the Mysteries of Life, Matter and the Universe

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We have demonstrated a new superconducting detector for a neutron based on Nb superconductor meanderline with a 10 B conversion layer. We use a current-biased kinetic inductance detector (CB-KID), which is composed of a meanderline, for detection of a neutron with high spatial resolution and fast response. The thickness of Nb meanderlines is 40 nm and widths are 3 µm, 1 µm, and 0.6 µm. The CB-KIDs are fabricated at the center of the Si chip of the size 22 mm × 22 mm and the total area of CB-KIDs covers 8 mm × 8 mm. The chip was cooled to a temperature lower than 4 K below the transition temperature of Nb using a Gifford-McMahon (GM) cryocooler. The Nb CB-KIDs with a 10 B conversion layer output the voltage by irradiating pulsed neutrons at the material life science experimental facility (MLF) of Japan Proton Accelerator Research Complex (J-PARC) center. The response time of CB-KIDs is about a few tens ns. We have also obtained the time dependence of neutron flux generated from pulsed neutrons using a CB-KID. Experimental results were in good agreement with the simulated results.

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Current-Biased Transition Edge Detector of $ \hbox{MgB}_{2}$ Nanowires for Neutrons: Imaging by Scanning Laser

Cited by 12 publications

References 6 publications

Neutron signal features of Nb-based kinetic inductance detector with ¹⁰B convertor

Neutron signal features of Nb-based kinetic inductance detector with ¹⁰B convertor

Neutron detection using the superconducting Nb-based current-biased kinetic inductance detector

Time-Dependent Flux from Pulsed Neutrons Revealed by Superconducting Nb Current-Biased Kinetic Inductance Detector with¹⁰B Converter Operated at 4 K

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Current-Biased Transition Edge Detector of $ \hbox{MgB}_{2}$ Nanowires for Neutrons: Imaging by Scanning Laser

Cited by 12 publications

References 6 publications

Neutron signal features of Nb-based kinetic inductance detector with 10B convertor

Neutron signal features of Nb-based kinetic inductance detector with 10B convertor

Neutron detection using the superconducting Nb-based current-biased kinetic inductance detector

Time-Dependent Flux from Pulsed Neutrons Revealed by Superconducting Nb Current-Biased Kinetic Inductance Detector with10B Converter Operated at 4 K

Contact Info

Product

Resources

About

Neutron signal features of Nb-based kinetic inductance detector with ¹⁰B convertor

Neutron signal features of Nb-based kinetic inductance detector with ¹⁰B convertor

Time-Dependent Flux from Pulsed Neutrons Revealed by Superconducting Nb Current-Biased Kinetic Inductance Detector with¹⁰B Converter Operated at 4 K