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

Khindri, Honey; Satyanarayana, B.; Shinde, R. R.; Datar, V. M.; Indumathi, D.; Thulasi, Ram K V; Dalal, N.; S., Prabhakar,; Ajith, S.; Pathak, Sourabh; Patel, Sandip Pravin

doi:10.1088/1748-0221/17/10/t10006

Cited by 7 publications

(16 citation statements)

References 5 publications

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“…Since ICAL has excellent charge id efficiency it can help in studying matter effect on ν µ and ν µ that can resolve neutrino mass ordering by determining the sign of the 2-3 mass square of difference ∆m 2 32 ≡ m 2 3 -m 2 3 . Recently, several measurements at the 85 ton mini-ICAL detector indicated that it may be possible to get agreement between measured and simulated field values to within a few percent [1]. Here we present a preliminary and first study of the effect of errors in the measurement of the magnetic fields on the physics goals of ICAL.…”

Section: Introductionmentioning

confidence: 89%

Propagation of error in the Physics analysis with the variation in magnetic field in the ICAL detector

Khindr¹

2022

Proceedings of 41st International Conference on High Energy Physics — PoS(ICHEP2022)

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The magnetized iron calorimeter (ICAL) detector proposed at the India-based Neutrino Observatory will be a 51 kton detector made up of 151 layers of 56 mm thick soft iron layers 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 using the atmospheric neutrinos as source. The charged current interactions of the atmospheric muon neutrinos and antineutrinos 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. The geometry of the ICAL has been optimized to detect muons in the energy range of 1-15 GeV. It is difficult to measure the magnetic field inside iron, therefore measuring field using external methods can introduce error. In this study the effect of error in measurement of magnetic field in ICAL is studied. An attempt is made to know how the uncertainty in the magnetic field values will propagate in the reconstruction of momentum and other aspects of the physics analysis of the data from ICAL detector using GEANT4 simulations.

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Section: Introductionmentioning

confidence: 89%

Propagation of error in the Physics analysis with the variation in magnetic field in the ICAL detector

Khindr¹

2022

Proceedings of 41st International Conference on High Energy Physics — PoS(ICHEP2022)

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“…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%

“…The procedure involved and instruments used to measure the magnetic field in the gaps has already been presented in ref. [6] where results for a coil current of 500 A were presented. The same method is used in the current study and is described again here for completeness.…”

Section: Jinst 19 P01027mentioning

confidence: 99%

“…The procedure followed for the calibration of the Hall sensor PCB and estimation of error associated with the measured magnetic field is the same as described in ref. [6], where measurements were presented for coil currents up to 500 A due to limitation of power supply. In the present paper, measurements are shown for currents up to 900 A, where saturation of magnetic field is expected.…”

Section: The Hall Sensor Probe and Calibrationmentioning

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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“…CYSJ106C GaAs Hall Effect Element sensors are mounted on PCB (Fig. 4) which are inserted in the gaps between the iron plates at specific locations [3] (gap 0,2,3,5 in the Fig. 3).…”

Section: Magnetic Field Measurement Systemmentioning

confidence: 99%

Magnetic Field Simulations and Measurements on Mini-ICAL

Honey¹,

M.²,

Ajith³

et al. 2022

Springer Proceedings in Physics

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The proposed ICAL detector is designed to detect muons generated from interaction of ν µ and anti-ν µ with Iron. It is designed with a maximum magnetic field of about 1.5 Tesla (with 90% of its volume having > 1 Tesla magnetic field). The magnetic field is intended for charge identification and momentum reconstruction of the muons. The mini-ICAL is a fully functional 85-ton prototype detector. One of the main challenges for the mini-ICAL detector is to produce the required B-field and to measure it as accurately as possible to study muons. For the purpose of measuring the B-field in the detector, Hall sensor PCBs are used. Hall sensors provide real time measurement of B-field. Calibration and systematic study of characteristics of the Hall sensors which are used for the measurement are carried out. Out of 11 layers of iron, 3 layers (1, 6 and 11) have provision for measurement of B-field using Hall sensor. In the mentioned layers, the gap between the adjacent plates is kept 3-4 mm for the purpose of inserting of the Hall sensor PCBs. In the rest of the layers, the gap between the plates is kept 2 mm. Measurements of magnetic field in the air gap between the plates and measurement of fringe field is done with a precision of 3% for the top layer. This will help in completing the study on the final magnetic field configuration of ICAL.

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

Cited by 7 publications

References 5 publications

Propagation of error in the Physics analysis with the variation in magnetic field in the ICAL detector

Propagation of error in the Physics analysis with the variation in magnetic field in the ICAL detector

Magnetic field simulations and measurements on the mini-ICAL detector

Magnetic Field Simulations and Measurements on Mini-ICAL

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