Magnetic Field Simulations and Measurements on Mini-ICAL

Honey,; M., Datar, V.; Ajith, S.; Dalal, N.; De, A.; Majumder, G.; Patel, S.; Pathak, S.; Prabhakar, S.; Satyanarayana, B.; Shetty, P. S.; Krishna, B. Siva Rama; Srinivasan, T.; Thakur, S. K.

doi:10.1007/978-981-19-2354-8_143

Cited by 3 publications

(7 citation statements)

References 2 publications

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“…Hence the 5-layer model (1,3,6,9,11) shows a larger magnetic field in layer-6 than the 5 layer model (2,4,6,8,10) where the layers adjoining the central one are closer. Similarly, the 3-layer model (1,6,11) with very distant neighbours has a larger magnetic field in layer 6 than the 3-layer model (5,6,7) with closely adjacent layers. Clearly the magnetic field in a layer depends on the number of adjoining layers as well as their relative distances from that layer.…”

Section: Resultsmentioning

confidence: 92%

“…As 3 or 5 layers are added, the field decreases from the 1-layer model and is intermediate between the 1-layer and 11-layer models. However, the relative placement of the layers also matters: the field in the central module is always smaller either if there are more layers (2,4,6,8,10) or if the adjacent layers are closer to the central layer (5,6,7). Hence the 5-layer model (1,3,6,9,11) shows a larger magnetic field in layer-6 than the 5 layer model (2,4,6,8,10) where the layers adjoining the central one are closer.…”

Section: Resultsmentioning

confidence: 99%

“…Results of such a measurement for a single current of 500 A in the coil were reported in ref. [6][7][8]. In this paper, a detailed study of the measured magnetic field in mini-ICAL for different coil currents from 500-900 A is reported.…”

Section: Jinst 19 P01027mentioning

confidence: 99%

“…We have considered 5 different models in addition to the standard 11-layer model. Two of them have 3 layers, placed at positions (1,6,11) or (5,6,7) of the 11-layer model. Two of them have 5 layers, placed…”

Section: A Simulations With Different Number Of Layersmentioning

confidence: 99%

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Magnetic field simulations and measurements on the mini-ICAL detector

Khindri,

Satyanarayana,

Indumathi

et al. 2024

J. Inst.

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The ICAL (Iron Calorimeter) is a 51 kton magnetized detector proposed by the INO collaboration. It is designed to detect muons with energies in the 1–20 GeV range. A magnetic field of ∼ 1.5 T in the ICAL detector will be generated by passing a DC current through suitable copper coils. This will enable it to distinguish between μ- and μ+ that will be generated from the interaction of atmospheric νμ and νμ with iron. This will help in resolving the open question of mass ordering in the neutrino sector. Apart from charge identification, the magnetic field will be used to reconstruct the muon momentum (direction and magnitude). Therefore it is important to know the magnetic field in the detector as accurately as possible. We present here an (indirect) measurement of the magnetic field in the 85 ton prototype mini-ICAL detector working in Madurai, Tamil Nadu, for different coil currents. A detailed 3-D finite element simulation was done for the mini-ICAL geometry using Infolytica MagNet software and the magnetic field was computed for different coil currents. This paper presents, for the first time, a comparison of the magnetic field measured in the air gaps with the simulated magnetic field, to validate the simulation using real time data. Using the simulations the magnetic field inside the iron is estimated.

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Section: Resultsmentioning

confidence: 92%

Section: Resultsmentioning

confidence: 99%

Section: Jinst 19 P01027mentioning

confidence: 99%

Section: A Simulations With Different Number Of Layersmentioning

confidence: 99%

See 2 more Smart Citations

Magnetic field simulations and measurements on the mini-ICAL detector

Khindri,

Satyanarayana,

Indumathi

et al. 2024

J. Inst.

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“…Hence, separately, a detailed simulations study of the magnetic field in mini-ICAL [11] as a function of the coil current and the gap widths, has been made using the MAGNET software [12]. A sample result is shown in figure 4.…”

Section: Jinst 18 P12009mentioning

confidence: 99%

Impact of errors in the magnetic field measurement on the precision determination of neutrino oscillation parameters at the proposed ICAL detector at INO

Khindri,

Indumathi,

Mohan

2023

J. Inst.

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The magnetised iron calorimeter (ICAL) detector proposed at the India-based Neutrino Observatory will be a 51 kton detector made of 151 layers of 56 mm thick soft iron with 40 mm air gap in between where the RPCs, the active detectors, will be placed. The main goal of ICAL is to make precision measurements of the neutrino oscillation parameters, especially of the neutrino mass ordering, using the atmospheric neutrinos as source. The charged current interactions of the atmospheric muon neutrinos and anti-neutrinos in the detector produce charged muons. The magnetic field, with a maximum value of ∼ 1.5 T in the central region of ICAL, is a critical component since it will be used to distinguish the charges and determine the momentum and direction of these muons. It is difficult to measure the magnetic field inside the iron. The existing methods can only estimate the internal field and hence will be prone to error. This paper presents the first simulations study of the effect of errors in the measurement of the magnetic field in ICAL on its physics potential, especially the neutrino mass ordering and precision measurement of oscillation parameters in the 2–3 sector. The study is a GEANT4-based analysis, using measurements of the magnetic field at the prototype ICAL detector. We find that there is only a small effect on the determination of the mass ordering. While local fluctuations in the magnetic field measurement are well-tolerated, calibration errors must remain well within 5% to retain good precision determination of the parameters sin2 θ 23 and Δm 2 32.

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Magnetic field measurements on the mini-ICAL detector using Hall probes

et al. 2022

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The magnetised 51 kton Iron Calorimeter (ICAL) detector proposed to be built at INO is designed with a focus on detecting 1–20 GeV muons. The magnetic field will enable the measurement of the momentum of the μ - and μ + generated from the charge current interactions of atmospheric νμ and ν̅μ separately within iron in the detector, thus permitting the determination of the neutrino mass ordering/hierarchy, among other important goals of ICAL. Hence it is important to determine the magnetic field as accurately as possible. The mini-ICAL detector is an 85-ton prototype of ICAL, which is operational at Madurai in South India. We describe here the first measurement of the magnetic field in mini-ICAL using Hall sensors. A set-up was developed to calibrate the Hall probe sensors using an electromagnet. The readout system has been designed using an Arduino Nano board for selection of channels of Hall probes mounted on the PCB and the output voltage was measured. The magnetic field has been measured in the small gaps (provided for the purpose) between iron plates in the top layer of mini-ICAL as well as in the air just outside the detector. A precision of better than 3% was obtained, with a sensitivity down to about 3 mT when measuring the small fringe fields outside the detector.

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Magnetic Field Simulations and Measurements on Mini-ICAL

Cited by 3 publications

References 2 publications

Magnetic field simulations and measurements on the mini-ICAL detector

Magnetic field simulations and measurements on the mini-ICAL detector

Impact of errors in the magnetic field measurement on the precision determination of neutrino oscillation parameters at the proposed ICAL detector at INO

Magnetic field measurements on the mini-ICAL detector using Hall probes

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