INSTITUTIONAL DIGITAL REPOSITORY

Browsing by Author "Reza, A."

Browsing by Author "Reza, A."

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  • A cryogenic front-end preamplifier operating at 120 K for bolometric detector 
    Reza, A.; Vatsa, V.; Pose, M.S.; Mazumdar, A.; Garai, A.; Krishnamoorthy, H.; Gupta, G.; Nanal, V.; Pillay, R.G.; Shrivastava, A. (2020-03-16)
    In this paper, the design and test results of a front-end cryogenic amplifier for a bolometer detector are presented. The amplifier is implemented with two low-noise Si JFETs, where the first FET is configured as a source ...
  • Influence of contact geometry on NTD sensor performance 
    Vatsa, V.; Reza, A.; Mazumdar, A.; Nanal, V.; Pillay, R. G.; Shrivastava, A.; Ramakrishnan, S.; Mallikarjunachary, S.; Pose, M. S. (2021-11-27)
    A cryogenic bolometer with Neutron Transmutation Doped Ge as mK thermometer is being developed to study neutrinoless double beta decay (NDBD) in 124Sn. The performance and sensitivity of the sensor strongly depends on ...
  • Simulation studies for source optimization in 96Zr β decay 
    Thakur, S.; Nanal, V.; Singh, P.P.; Pillay, R.G.; Krishnamoorthy, H.; Mazumdar, A.; Reza, A.; Raina, P.K.; Vatsa, V. (2022-07-15)
    The single β decay of 96Zr to the ground state of 96Nb is spin forbidden and poses a great experimental challenge. The β decay of 96Zr can be studied via coincident detection of de-exciting gamma rays in 96Mo, which is ...
  • Study of the effect of external noise pickups on the performance of a cryogenic bolometer 
    Garai, A.; Reza, A.; Mazumdar, A.; Krishnamoorthy, H.; Gupta, G.; Pose, M.S.; Mallikarjunachary, S.; Nanal, V.; Pillay, R.G.; Ramakrishnan, S. (2019-12-11)
    This paper reports the detailed noise characterization, investigation of various noise sources, and its mitigation to improve the performance of a cryogenic bolometer detector for the TIN.TIN experiment. The noise spectrum ...
  • Study of γ -ray background from cosmic muon induced neutrons 
    Krishnamoorthy, H.; Gupta, G.; Garai, A.; Mazumdar, A.; Reza, A.; Pal, S.; Pethuraj, S.; Nanal, V.; Shrivastava, A.; Pillay, R. G. (2021-08-20)
    The contribution to γ-ray background from secondary neutrons, originating from cosmic muon interactions in Pb-Cu composite shield, has been measured via (n, n γ) reactions in Cu and Ge. The minimization of background ...
  • Study of γ -ray background from cosmic muon induced neutrons 
    Krishnamoorthy, H.; Gupta, G.; Garai, A.; Mazumdar, A.; Reza, A.; Pethuraj, S.; Pal, S.; Nanal, V.; Shrivastava, A.; Pillay, R.G. (2022-08-24)
    The contribution to γ-ray background from secondary neutrons, originating from cosmic muon interactions in Pb-Cu composite shield, has been measured via (n , n γ) reactions in Cu and Ge. The minimization of background plays ...
  • Synchrotron x-ray diffraction studies of the α⇌β structural phase transition in Sn and Sn-Cu 
    Mazumdar, A.; Thamizhavel, A.; Nanal, V.; Pillay, R.G.; Upadhyay, A.; Vatsa, V.; Reza, A.; Shrivastava, A.; Chalke, Bhagyashree; Mallikarjunachary, S. (2021-05-28)
    The transformation between the metallic (β) and semiconducting (α) allotropes of tin is still not well understood. The phase transition temperature stated in the literature, 286.2 K, seems to be inconsistent with recent ...
  • Systematic Studies of a Sapphire Bolometer with Phonon Pulses in the Temperature Range of 10–100mK 
    Garai, A.; Mazumdar, A.; Reza, A.; Krishnmoorthy, H.; Gupta, G.; Nanal, V.; Pillay, R.G.; Ramakrishnan, S. (2020-12-22)
    Systematic studies with a sapphire bolometer test setup, made with indigenously made NTD Ge sensor, are carried out. A C++ and ROOT-based pulse analysis program implementing Savitzky–Golay filtering technique for analyzing ...