Status of Superconducting Magnet System for the J-PARC Neutrino Beam Line

Ogitsu, T.; Ajima,; Fujii,; Higashi,; Kimura,; Kobayashi, Donald R.; Makida, Y.; Nakamoto, T.; Ohhata,; Okamura,; Sasaki, Mitsuru; Tanaka,; Terashima,; Yamamoto,; Ichikawa,; Kakuno,; Hasting,; Anerella,; Escallier,; Ganetis,; Gupta, Rajiv; Jain, Alok; Muratore,; Parker,; Wanderer,; Charrier,; Boussuge,; Harrison,

doi:10.1109/tasc.2009.2019037

Cited by 6 publications

(1 citation statement)

References 15 publications

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“…Fabrication of the magnets was completed by June 2008 as planned. The only significant problem in production was the failure of the insulation in a quench protection heater (QPH) in the eighteenth magnet [13].…”

Section: B Scfmmentioning

confidence: 99%

Construction of Superconducting Magnet System for the J-PARC Neutrino Beam Line

Nakamoto¹,

Sasaki²,

Ajima³

et al. 2010

IEEE Trans. Appl. Supercond.

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Section: B Scfmmentioning

confidence: 99%

Construction of Superconducting Magnet System for the J-PARC Neutrino Beam Line

Nakamoto¹,

Sasaki²,

Ajima³

et al. 2010

IEEE Trans. Appl. Supercond.

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The T2K experiment

Abe¹,

Abgrall²,

Aihara³

et al. 2011

Nuclear Instruments and Methods in Physics Research Section A:

765

567

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The T2K experiment is a long baseline neutrino oscillation experiment. Its main goal is to measure the last unknown lepton sector mixing angle θ13θ13 by observing νeνe appearance in a νμνμ beam. It also aims to make a precision measurement of the known oscillation parameters, View the MathML sourceΔm232 and sin22θ23sin22θ23, via νμνμ disappearance studies. Other goals of the experiment include various neutrino cross-section measurements and sterile neutrino searches. The experiment uses an intense proton beam generated by the J-PARC accelerator in Tokai, Japan, and is composed of a neutrino beamline, a near detector complex (ND280), and a far detector (Super-Kamiokande) located 295 km away from J-PARC. This paper provides a comprehensive review of the instrumentation aspect of the T2K experiment and a summary of the vital information for each subsystem

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In-Line Control in T2K Proton Beam Line Magnet Safety System

Charrier

Allard

Anstett

et al. 2012

IEEE Trans. Appl. Supercond.

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Magnet Safety Systems (MSS) frequently use quench detection based on voltage measurement, in order to protect superconducting magnets. Disconnecting quench detection cables and using a voltage generator to simulate quench voltages is a good way to check the system. This paper describes another method, with a hardware and software in-line control system, used to periodically check the MSS of the 28 superconducting magnets of the T2K proton beam line, at J-PARC.With in-line control, an isolated simulation voltage is added to each real input voltage of the detectors, without disconnecting quench detection cables.In-line control can also check if quench detection cables are connected or not, and if a detection wire is broken.In-line control is realized with additional electronic hardware and software on the MSS electronic boards and with a connection to a PC with a specific software and Graphic User Interface running under Windows. Nevertheless, quench detection and safety actions are always based on hardware only. Extreme care is taken so that in-line control cannot prevent the MSS to protect the magnet system, even if software stops running.Other remote functions are also available with this system, like monitoring of analog and logical signals and setting of detection and electronic parameters, if needed.Index Terms-In-line control, magnet safety system, quench detection, superconducting magnet, T2K.

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Status of Superconducting Magnet System for the J-PARC Neutrino Beam Line

Cited by 6 publications

References 15 publications

Construction of Superconducting Magnet System for the J-PARC Neutrino Beam Line

Construction of Superconducting Magnet System for the J-PARC Neutrino Beam Line

The T2K experiment

In-Line Control in T2K Proton Beam Line Magnet Safety System

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