Evaluation of novel KEK/HPK n-in-p pixel sensors for ATLAS upgrade with testbeam

R. Nagai, J. Idárraga, C. Gallrapp, Y. Unno, A. Lounis, O. Jinnouchi, Y. Takubo, K. Hanagaki, K. Hara, Y. Ikegami, N. Kimura, K. Nagai, I. Nakano, R. Takashima, S. Terada, J. Tojo, Kohei Yorita, S. Altenheiner, M. Backhaus, M. Bomben & 14 others D. Forshaw, M. George, J. Janssen, J. Jentzsch, T. Lapsien, A. La Rosa, A. MacChiolo, G. Marchiori, C. Nellist, I. Rubinsky, A. Rummler, G. Troska, P. Weigell, J. Weingarten

    Research output: Contribution to journalArticle

    10 Citations (Scopus)

    Abstract

    A new type of n-in-p planar pixel sensors have been developed at KEK/HPK in order to cope with the maximum particle fluence of 1-3×1016 1 MeV equivalent neutrons per square centimeter (neq/cm2) in the upcoming LHC upgrades. Four n-in-p devices were connected by bump-bonding to the new ATLAS Pixel front-end chip (FE-I4A) and characterized before and after the irradiation to 2×1015 neq/cm2. These planar sensors are 150μm thick, using biasing structures made out of polysilicon or punch-through dot and isolation structures of common or individual p-stop. Results of measurements with radioactive 90Sr source and with a 120 GeV/c momentum pion beam at the CERN Super Proton Synchrotron (SPS) are presented. The common p-stop isolation structure shows a better performance than the individual p-stop design, after the irradiation. The flat distribution of the collected charge in the depth direction after the irradiation implies that the effect of charge trapping is small, at the fluence, with the bias voltage well above the full depletion voltage.

    Original languageEnglish
    Pages (from-to)78-83
    Number of pages6
    JournalNuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
    Volume699
    DOIs
    Publication statusPublished - 2013 Jan 21

    Fingerprint

    Pixels
    pixels
    Irradiation
    irradiation
    evaluation
    sensors
    isolation
    Sensors
    fluence
    pion beams
    Charge trapping
    punches
    electric potential
    Bias voltage
    Synchrotrons
    Polysilicon
    Momentum
    Neutrons
    Protons
    synchrotrons

    Keywords

    • ATLAS
    • HL-LHC
    • N-in-p
    • Pixel detector

    ASJC Scopus subject areas

    • Instrumentation
    • Nuclear and High Energy Physics

    Cite this

    Evaluation of novel KEK/HPK n-in-p pixel sensors for ATLAS upgrade with testbeam. / Nagai, R.; Idárraga, J.; Gallrapp, C.; Unno, Y.; Lounis, A.; Jinnouchi, O.; Takubo, Y.; Hanagaki, K.; Hara, K.; Ikegami, Y.; Kimura, N.; Nagai, K.; Nakano, I.; Takashima, R.; Terada, S.; Tojo, J.; Yorita, Kohei; Altenheiner, S.; Backhaus, M.; Bomben, M.; Forshaw, D.; George, M.; Janssen, J.; Jentzsch, J.; Lapsien, T.; La Rosa, A.; MacChiolo, A.; Marchiori, G.; Nellist, C.; Rubinsky, I.; Rummler, A.; Troska, G.; Weigell, P.; Weingarten, J.

    In: Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 699, 21.01.2013, p. 78-83.

    Research output: Contribution to journalArticle

    Nagai, R, Idárraga, J, Gallrapp, C, Unno, Y, Lounis, A, Jinnouchi, O, Takubo, Y, Hanagaki, K, Hara, K, Ikegami, Y, Kimura, N, Nagai, K, Nakano, I, Takashima, R, Terada, S, Tojo, J, Yorita, K, Altenheiner, S, Backhaus, M, Bomben, M, Forshaw, D, George, M, Janssen, J, Jentzsch, J, Lapsien, T, La Rosa, A, MacChiolo, A, Marchiori, G, Nellist, C, Rubinsky, I, Rummler, A, Troska, G, Weigell, P & Weingarten, J 2013, 'Evaluation of novel KEK/HPK n-in-p pixel sensors for ATLAS upgrade with testbeam', Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, vol. 699, pp. 78-83. https://doi.org/10.1016/j.nima.2012.04.081
    Nagai, R. ; Idárraga, J. ; Gallrapp, C. ; Unno, Y. ; Lounis, A. ; Jinnouchi, O. ; Takubo, Y. ; Hanagaki, K. ; Hara, K. ; Ikegami, Y. ; Kimura, N. ; Nagai, K. ; Nakano, I. ; Takashima, R. ; Terada, S. ; Tojo, J. ; Yorita, Kohei ; Altenheiner, S. ; Backhaus, M. ; Bomben, M. ; Forshaw, D. ; George, M. ; Janssen, J. ; Jentzsch, J. ; Lapsien, T. ; La Rosa, A. ; MacChiolo, A. ; Marchiori, G. ; Nellist, C. ; Rubinsky, I. ; Rummler, A. ; Troska, G. ; Weigell, P. ; Weingarten, J. / Evaluation of novel KEK/HPK n-in-p pixel sensors for ATLAS upgrade with testbeam. In: Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. 2013 ; Vol. 699. pp. 78-83.
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    abstract = "A new type of n-in-p planar pixel sensors have been developed at KEK/HPK in order to cope with the maximum particle fluence of 1-3×1016 1 MeV equivalent neutrons per square centimeter (neq/cm2) in the upcoming LHC upgrades. Four n-in-p devices were connected by bump-bonding to the new ATLAS Pixel front-end chip (FE-I4A) and characterized before and after the irradiation to 2×1015 neq/cm2. These planar sensors are 150μm thick, using biasing structures made out of polysilicon or punch-through dot and isolation structures of common or individual p-stop. Results of measurements with radioactive 90Sr source and with a 120 GeV/c momentum pion beam at the CERN Super Proton Synchrotron (SPS) are presented. The common p-stop isolation structure shows a better performance than the individual p-stop design, after the irradiation. The flat distribution of the collected charge in the depth direction after the irradiation implies that the effect of charge trapping is small, at the fluence, with the bias voltage well above the full depletion voltage.",
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    T1 - Evaluation of novel KEK/HPK n-in-p pixel sensors for ATLAS upgrade with testbeam

    AU - Nagai, R.

    AU - Idárraga, J.

    AU - Gallrapp, C.

    AU - Unno, Y.

    AU - Lounis, A.

    AU - Jinnouchi, O.

    AU - Takubo, Y.

    AU - Hanagaki, K.

    AU - Hara, K.

    AU - Ikegami, Y.

    AU - Kimura, N.

    AU - Nagai, K.

    AU - Nakano, I.

    AU - Takashima, R.

    AU - Terada, S.

    AU - Tojo, J.

    AU - Yorita, Kohei

    AU - Altenheiner, S.

    AU - Backhaus, M.

    AU - Bomben, M.

    AU - Forshaw, D.

    AU - George, M.

    AU - Janssen, J.

    AU - Jentzsch, J.

    AU - Lapsien, T.

    AU - La Rosa, A.

    AU - MacChiolo, A.

    AU - Marchiori, G.

    AU - Nellist, C.

    AU - Rubinsky, I.

    AU - Rummler, A.

    AU - Troska, G.

    AU - Weigell, P.

    AU - Weingarten, J.

    PY - 2013/1/21

    Y1 - 2013/1/21

    N2 - A new type of n-in-p planar pixel sensors have been developed at KEK/HPK in order to cope with the maximum particle fluence of 1-3×1016 1 MeV equivalent neutrons per square centimeter (neq/cm2) in the upcoming LHC upgrades. Four n-in-p devices were connected by bump-bonding to the new ATLAS Pixel front-end chip (FE-I4A) and characterized before and after the irradiation to 2×1015 neq/cm2. These planar sensors are 150μm thick, using biasing structures made out of polysilicon or punch-through dot and isolation structures of common or individual p-stop. Results of measurements with radioactive 90Sr source and with a 120 GeV/c momentum pion beam at the CERN Super Proton Synchrotron (SPS) are presented. The common p-stop isolation structure shows a better performance than the individual p-stop design, after the irradiation. The flat distribution of the collected charge in the depth direction after the irradiation implies that the effect of charge trapping is small, at the fluence, with the bias voltage well above the full depletion voltage.

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    KW - ATLAS

    KW - HL-LHC

    KW - N-in-p

    KW - Pixel detector

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