Measurement of cosmic-ray muon flux in the underground laboratory at UCIL, India, using plastic scintillators and SiPM

Sharan, M.; Singaraju, Ram Narayan; Sinha, T.; Ghosh, Tanmoy; Jha, V.

doi:10.1016/j.nima.2021.165083

Cited by 10 publications

(4 citation statements)

References 18 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The external background can be minimized with suitable shielding. A moderate rock cover of ∼ 500 m would suppress the muon flux by ∼ 4 orders of magnitude [9]. Thus, the inherent background from the source (trace impurities, neutron induced reactions) will be a limiting factor and hence the same has been used in the present estimation.…”

Section: Data Analysis and Resultsmentioning

confidence: 99%

Background Estimation Studies for Positron Double Beta Decay

Thakur¹,

Mazumdar²,

Shah³

et al. 2021

Preprint

View full text Add to dashboard Cite

The study of neutrinoless double beta decay has attracted much attention as it can provide valuable information about the mass and the nature of the neutrino. The double beta decay (DBD) itself is also of interest in nuclear physics. While DBD has been observed in about a dozen nuclei, the positron double beta decay (β + β + /EC-β + ) continues to be an elusive. An important signature for β + β + decay is the simultaneous emission of four 511 keV gamma rays and the coincident detection of these gamma rays can improve the measurement sensitivity. This paper presents an estimation of sensitivity for EC-β + and β + β + employing coincidence measurement with two high purity Ge (HPGe) detectors. Simulations for coincident detection efficiency (ǫ c ) of 511 keV gamma rays with two HPGe detectors have been carried out using GEANT4 for different source geometries to optimize the mass efficiency product (Mǫ c ). The source of size 55 mm × 55 mm × 5 mm (thickness) sandwiched between the front faces of the detectors were found to be optimal for 2 pairs of 511 keV gamma rays in the present detector setup. The coincident background is estimated at the sea level with moderate Pb shielding. With this setup, the sensitivity for T 1/2 measurement of EC-β + in 112 Sn and β + β + in 106 Cd is estimated to be ∼ 10 19 -10 20 y for 1 y of measurement time.

show abstract

Section: Data Analysis and Resultsmentioning

confidence: 99%

Background Estimation Studies for Positron Double Beta Decay

Thakur¹,

Mazumdar²,

Shah³

et al. 2021

Preprint

View full text Add to dashboard Cite

show abstract

“…al [18] used plastic scintillators to measure muon flux at various underground depths in China. Recently, four plastic scintillators were used to measure the muon flux at an underground laboratory at Jaduguda, India [19]. Work in Ref.…”

Section: Introductionmentioning

confidence: 99%

Measurement of atmospheric muon angular distribution using a portable setup of liquid scintillator bars

Sogarwal,

Shukla

2022

Preprint

View full text Add to dashboard Cite

Measurements of cosmogenic particles at various locations and altitudes are becoming increasingly important in view of worldwide interests in rare signals for search of new physics. In this work, we report measurement of muon zenith angle distributions and integrated flux using a portable setup of four one-meter long liquid scintillator bars. Each scintillator bar is read out from both sides via photomultiplier tubes followed by an 8-channel Digitizer. We exploit energy deposition and excellent timing of scintillators to construct two dimensional tracks and hence angles of charged particles. We use liquid scintillators since they have an added advantage of pulse shape discrimination (PSD) which can be used for detecting muon induced particles. The energy deposition, time window of event and PSD cuts are used to reduce the random as well as correlated backgrounds. In addition, we propose three track quality parameters which are applied to obtain a clean muon spectrum. The zenith angle measurement is performed upto 60 • . With our improved analysis, we demonstrate that a setup of 3 bars can also be used for quicker and precise measurements. The vertical muon flux measured is 66.70 ± 0.36 ± 1.50 /m 2 /sr/s with n = 2.10 ± 0.05 ± 0.25 in cos n θ at the location of Mumbai, India (19 • N, 72.9 • E) at Sea level with a muon momentum above 255 MeV/c. The muon flux has dependence on various factors, the most prominents are latitudes, altitudes and momentum cut of muon so that portable setup like this can be a boon for such measurements at various locations.

show abstract

“…Wu et al [18] used plastic scintillators to measure muon flux at various underground depths in China. Recently, four plastic scintillators were used to measure the muon flux at an underground laboratory at Jaduguda, India [19]. Work in ref.…”

Section: Introductionmentioning

confidence: 99%

Measurement of atmospheric muon angular distribution using a portable setup of liquid scintillator bars

Hariom

Shukla²

2022

J. Cosmol. Astropart. Phys.

View full text Add to dashboard Cite

Measurements of cosmogenic particles at various locations and altitudes are becoming increasingly important in view of worldwide interests in rare signals for search of new physics. In this work, we report measurement of muon zenith angle distributions and vertical flux using a portable setup of four one-meter long liquid scintillator bars. Each scintillator bar is read out from both sides via photomultiplier tubes followed by an 8-channel Digitizer. We exploit energy deposition and excellent timing of scintillators to construct two dimensional tracks and hence angles of charged particles. We use liquid scintillators since they have an added advantage of pulse shape discrimination (PSD) which can be used for detecting muon induced particles. The energy deposition, time window of event and PSD cuts are used to reduce the random as well as correlated backgrounds. In addition, we propose three track quality parameters which are applied to obtain a clean muon spectrum. The zenith angle measurement is performed upto 60°. With our improved analysis, we demonstrate that a setup of 3 bars can also be used for quicker and precise measurements. The vertical muon flux measured is 66.70 ± 0.36 ± 1.50 /m2/sr/s with n = 2.10 ± 0.05 ± 0.25 in cos n θ at the location of Mumbai, India (19°N, 72.9°E) at Sea level with a muon momentum above 255 MeV/c. The muon flux has dependence on various factors, the most prominents are latitudes, altitudes and momentum cut of muon so that portable setup like this can be a boon for such measurements at various locations.

show abstract

Measurement of cosmic-ray muon flux in the underground laboratory at UCIL, India, using plastic scintillators and SiPM

Cited by 10 publications

References 18 publications

Background Estimation Studies for Positron Double Beta Decay

Background Estimation Studies for Positron Double Beta Decay

Measurement of atmospheric muon angular distribution using a portable setup of liquid scintillator bars

Measurement of atmospheric muon angular distribution using a portable setup of liquid scintillator bars

Contact Info

Product

Resources

About