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Development of NTD Ge Sensors for Superconducting Bolometer

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Abstract

Neutron transmutation-doped (NTD) Ge sensors have been prepared by irradiating device-grade Ge with thermal neutrons at Dhruva reactor, BARC, Mumbai. These sensors are intended to be used for the study of neutrinoless double beta decay in \(^{124}\)Sn with a superconducting Tin bolometer. Resistance measurements are performed on NTD Ge sensors in the temperature range 100–350 mK. The observed temperature dependence is found to be consistent with the variable-range hopping mechanism.

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Acknowledgments

We thank Mr. M.S. Pose, Mr. J.N. Karande, Ms. P.A. Dhumal, Mr. S. Mallikarjunachary, and Mr. K. Divekar for assistance in sensor R&D, and Prof. M. Deshmukh, Prof. S.S. Prabhu, and their lab staff for assistance in the electrical measurements.

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Authors and Affiliations

  1. Homi Bhabha National Institute, Mumbai, 400094, India

    A. Garai, S. Mathimalar, V. Singh & N. Dokania

  2. India-based Neutrino Observatory, Tata Institute of Fundamental Research, Mumbai, 400005, India

    A. Garai, S. Mathimalar, V. Singh & N. Dokania

  3. Department of Nuclear and Atomic Physics, Tata Institute of Fundamental Research, Mumbai, 400005, India

    V. Nanal & R. G. Pillay

  4. Department of Condensed Matter Physics and Material Science, Tata Institute of Fundamental Research, Mumbai, 400005, India

    S. Ramakrishnan

  5. Nuclear Physics Division, Bhabha Atomic Research Center, Mumbai, 400085, India

    A. Shrivastava

  6. Isotope Production and Application Division, Bhabha Atomic Research Center, Mumbai, 400085, India

    K. C. Jagadeesan & S. V. Thakare

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  1. A. Garai
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  2. S. Mathimalar
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  3. V. Singh
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  4. N. Dokania
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  5. V. Nanal
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  7. S. Ramakrishnan
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  9. K. C. Jagadeesan
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  10. S. V. Thakare
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Correspondence to V. Nanal.

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Garai, A., Mathimalar, S., Singh, V. et al. Development of NTD Ge Sensors for Superconducting Bolometer. J Low Temp Phys 184, 609–614 (2016). https://doi.org/10.1007/s10909-015-1379-6

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  • DOI: https://doi.org/10.1007/s10909-015-1379-6

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