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Instruments, Volume 2, Issue 1 (March 2018) – 4 articles

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12 pages, 1798 KiB  
Review
Superconducting Strips: A Concept in Thermal Neutron Detection
by Vittorio Merlo
Instruments 2018, 2(1), 4; https://doi.org/10.3390/instruments2010004 - 2 Mar 2018
Cited by 2 | Viewed by 3620
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 6LiF is also widely used nowadays), the shift towards concepts [...] Read more.
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 6LiF 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. Full article
(This article belongs to the Special Issue Advances in Particle Detectors and Electronics for Fast Timing)
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8 pages, 17157 KiB  
Article
ArCLight—A Compact Dielectric Large-Area Photon Detector
by Martin Auger, Yifan Chen, Antonio Ereditato, Damian Goeldi, Igor Kreslo, David Lorca, Matthias Luethi, Thomas Mettler, James Sinclair and Michele Weber
Instruments 2018, 2(1), 3; https://doi.org/10.3390/instruments2010003 - 6 Feb 2018
Cited by 16 | Viewed by 4547
Abstract
ArgonCube Light readout system (ArCLight) is a novel device for detecting scintillation light over large areas with Photon Detection Efficiency (PDE) of the order of a few percent. Its robust technological design allows for efficient use in large-volume particle detectors, such as Liquid [...] Read more.
ArgonCube Light readout system (ArCLight) is a novel device for detecting scintillation light over large areas with Photon Detection Efficiency (PDE) of the order of a few percent. Its robust technological design allows for efficient use in large-volume particle detectors, such as Liquid Argon Time Projection Chambers (LArTPCs) or liquid scintillator detectors. Due to its dielectric structure it can be placed inside volumes with high electric field. It could potentially replace vacuum PhotoMultiplier Tubes (PMTs) in applications where high PDE is not required. The photon detection efficiency for a 10 × 10 cm2 detector prototype was measured to be in the range of 0.8% to 2.2% across the active area. Full article
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9 pages, 2474 KiB  
Article
Mini 2000: A Robust Miniature Mass Spectrometer with Continuous Atmospheric Pressure Interface
by Xiangzhi Meng, Xiaohua Zhang, Yanbing Zhai and Wei Xu
Instruments 2018, 2(1), 2; https://doi.org/10.3390/instruments2010002 - 26 Jan 2018
Cited by 19 | Viewed by 6028
Abstract
A miniature mass spectrometer with continuous atmospheric pressure interface (CAPI) developed previously in our lab has proved to have high stability and rapid analysis speed. With the aim of achieving smaller size, better performance and easier maintenance, in this study, an upgraded miniature [...] Read more.
A miniature mass spectrometer with continuous atmospheric pressure interface (CAPI) developed previously in our lab has proved to have high stability and rapid analysis speed. With the aim of achieving smaller size, better performance and easier maintenance, in this study, an upgraded miniature mass spectrometer with CAPI was developed, in which all components were optimized and redesigned into a packaged unit. Using a more powerful pumping system, better analytical performances were obtained for this system. The miniature mass spectrometer has the capability to perform tandem mass spectrometry, and could be coupled with ambient ionization sources for analysis of different samples. Good stability (signal relative standard deviation, RSD < 5%), high sensitivity (limit of detection, LOD 10 ng/mL), better than unit mass resolution, and a broad mass range (from 150 Da to 2000 Da) were obtained. Integrated with a tablet computer for system control, the miniature mass spectrometer has dimensions of 38 cm × 23 cm × 34 cm (length × width × height), and is 13 kg in total weight. The whole system is powered by an adapter with a power consumption of 200 watts in total. Full article
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1 pages, 132 KiB  
Editorial
Acknowledgement to Reviewers of Instruments in 2017
by Instruments Editorial Office
Instruments 2018, 2(1), 1; https://doi.org/10.3390/instruments2010001 - 15 Jan 2018
Cited by 1 | Viewed by 2057
Abstract
Peer review is an essential part in the publication process, ensuring that Instruments maintains high quality standards for its published papers [...]
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