Electronics, Trigger and Data Acquisition Systems for the INO ICAL Experiment

Achrekar, S; Aniruddhan, Sankaran; Ayyagiri, N.; Behere, A.; Chandrachoodan, Nitin; Chandratre, V.B.; Chitra,; Das, Debashis; Dasgupta, S.; Datar, V. M.; Gokhale, U.; Jain, Anurekha; Joshi, Sanjay S.; Kalmani, S.D.; Kamble, N. M.; Karmakar, S.; Kasbekar, T.; Kaur, Puneet Kanwar; Kolla, Hemasundara Rao; Krishnapura, Nagendra; Kumar, Prasun; Kundu, Tapas K.; Lokapure, A.; Maity, M.; Majumder, G.; Manna, Akash; Mohanan, Sarath Kundumattathil; Moitra, Saibal; Mondal, N. K.; Nair, P.M.; Abinaya, P.; Padmini, S.; Panyam, N.; Pathaleswar,; Prabhakar, Anil; Punna, M.; Rahaman, Md. Faishal; Raut, Shailesh; Ravindran, K.; Roy, Subhasish; Prafulla, S.; Saraf, M. N.; Satyanarayana, B.; Shinde, R. R.; Sikder, Somali; Sil, D.; Sukhwani, Menka; Thomas, Megha; Upadhya, S. S.; Verma, Piyush; Yuvaraj, E.

doi:10.1007/978-981-13-1313-4_55

Cited by 5 publications

(3 citation statements)

References 1 publication

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The induced signals are amplified and discriminated by an 8-channel NINO ASIC chip [11]. The discriminator in the NINO is kept at a threshold of 100 fC.…”

Section: Methodsmentioning

confidence: 99%

Improving time and position resolutions of RPC detectors using time over threshold information

John¹,

Pethuraj²,

Majumder³

et al. 2022

J. Inst.

Self Cite

View full text Add to dashboard Cite

INO-ICAL is a proposed underground experiment to study the oscillation parameters of neutrinos by detecting those produced in the atmospheric air showers. The Iron CALorimeter (ICAL) is to have 151 layers of iron plates stacked vertically corresponding to a height of ∼14.5 m, with active detector elements inserted between the iron layers. The iron layers will be magnetized with a maximum magnetic field of 1.5 T to enable the measurement of the charge and momentum of the μ - (or μ +) produced by ν μ (or ν̅ μ ) interactions inside the detector throughout the operation. Resistive Plate Chambers (RPCs) have been chosen as the active detector elements as they are amenable to large area coverage, as well as due to their high particle detection efficiency, long-term performance and low cost of production. The major factors that weigh in on the physics potential of the ICAL detector are the efficiency, position resolution and time resolution of the large area RPCs. A prototype detector called mini-ICAL (with 11 iron layers) was commissioned in order to understand the engineering challenges in building the large-scale electromagnet and its ancillary systems, and also to study the performance of the RPC detectors and readout electronics developed by the INO collaboration. As part of the performance study of the RPC detectors, an attempt is made to improve their position and time resolutions. The designed position resolution for the ICAL detector is of the order of 1 cm and the required time resolution is ∼1 ns. Even a small improvement in the position and time resolution will help to improve the measurements of momentum and directionality of the neutrinos in the ICAL detector. In ICAL detector simulation, where muons traverse in all directions with on average 20 RPC layers, a 30 % improvement in position resolution results in ∼10 % improvement in the momentum resolution at 3 GeV. Due to large iron materials in between two RPCs, the resolution is dominated by the effect of multiple scattering at this momentum. Also for a muon with 10 layer hit, the charge ambiguity reduces from 0.04 % to 0.001 % when the time resolution improves from 1 ns to 0.7 ns. The Time-over-Threshold (ToT) of the RPC pulses is recorded by the readout electronics. ToT is a measure of the pulse width and consequently the pulse amplitude. This information is used to improve the time and position resolution of RPCs and consequently INO's physics potential.

show abstract

“…The induced signals are amplified and discriminated by an 8-channel NINO ASIC chip [11]. The discriminator in the NINO is kept at a threshold of 100 fC.…”

Section: Methodsmentioning

confidence: 99%

Improving time and position resolutions of RPC detectors using time over threshold information

John¹,

Pethuraj²,

Majumder³

et al. 2022

J. Inst.

Self Cite

View full text Add to dashboard Cite

show abstract

“…operated at 9.8 kV to 10.2 kV based on the efficiency plateau using the cosmic muon data [4]. Two thin layers (100 μm) of Mylar sheets (insulator) are kept in between the chamber and pick-up panels on both sides.…”

Section: Jinst 18 P11023mentioning

confidence: 99%

Simulation of RPC responses in mini-Iron Calorimeter for cosmic ray muon studies

John,

Majumder,

Pethuraj

2023

J. Inst.

Self Cite

View full text Add to dashboard Cite

A Prototype of the Iron Calorimeter for the India-based Neutrino Observatory is currently running in Madurai, India. This consists of twenty large area single gap Resistive Plate Chambers (RPCs) of size, ∼ 185 cm × 175 cm sandwiched between 11 layers of iron plates of thickness 5.6 cm. The total size of the mini-Iron Calorimeter(mini-ICAL) is 4 m × 4 m × 1.2 m and having a weight of 85 tons is a (1/600) scaled-down version of the ICAL detector of INO [1]. The detector is magnetized using iron plates and two sets of copper coils, each coil has 18 turns. The central region of the mini-ICAL, where the RPCs are placed, has a nearly uniform magnetic field of 1.4 T, similar to the magnetic field in the final ICAL detector. This prototype serves as the basis for the design of the demonstrators, which closely mimics the characteristics of a future ICAL. This detector is built to test the final electronics in the fringe field of the magnet and also to develop the experience to construct the ICAL detector. The mini-ICAL has been operational since 2018 and collects cosmic muon data with different configurations of RPC, and electronics, which are continuously changing for various R&D efforts. Dedicated efforts are made in parallel to measure the momentum and azimuthal angle of μ+ and μ- independently, which could be an important input to the cosmic neutrino event generators. To improve the precision of those measurements a dedicated simulation effort was made, particularly in the digitisation of the RPC signal for a real detector simulation, where efficiency, noise rate, strip multiplicity, etc. were matched with the real data collected during runs at mini-ICAL.

show abstract

“…The induced signals from the pickup strip are amplified and discriminated by a charge sensitive NINO [7] 3. The detailed description of signal processing and Data Acquisition system (DAQ) can be found in [8]. The cosmic muons were recorded using the 1-Fold signals from layers 4, 5, 6 and 7 as a trigger.…”

Section: The Prototype Detector Setupmentioning

confidence: 99%

Measurement of azimuthal dependent muon flux by 2\,m\,$\times$\,2\,m RPC stack at IICHEP-Madurai

Pethuraj,

Majumder,

Datar

et al. 2019

Preprint

Self Cite

View full text Add to dashboard Cite

The proposed 50 kton INO-ICAL experiment is an underground high energy physics experiment planned to be built at Theni, India (9 • 57 N , 77 • 16 E) to study various parameters of neutrino oscillations using atmospheric neutrinos. The Resistive Plate Chamber (RPC) has been chosen as the active detector element for the ICAL detector. An experimental setup consisting of 12 layers of glass RPCs of size ∼ 2 m × 2 m has been built at IICHEP, Madurai to study the performance and long-term stability of RPCs produced on a large scale in the Indian industry as well as its readout electronics. In this study, the azimuthal dependence of muon flux at different zenith angles at Madurai (9 • 56 N, 78 • 00 E and altitude of about 160 m from sea level) are presented along with the comparison of CORSIKA and HONDA predictions.

show abstract

Electronics, Trigger and Data Acquisition Systems for the INO ICAL Experiment

Cited by 5 publications

References 1 publication

Improving time and position resolutions of RPC detectors using time over threshold information

Improving time and position resolutions of RPC detectors using time over threshold information

Simulation of RPC responses in mini-Iron Calorimeter for cosmic ray muon studies

Measurement of azimuthal dependent muon flux by 2\,m\,$\times$\,2\,m RPC stack at IICHEP-Madurai

Contact Info

Product

Resources

About