Magnetic Czochralski silicon strip detectors for Super-LHC experiments

Esa Tuovinen; Jaakko Härkönen; Panja Luukka; Teppo Mäenpää; Henri Moilanen; Ivan Kassamakov; Eija Tuominen

doi:10.1016/j.nima.2010.04.089

Magnetic Czochralski silicon strip detectors for Super-LHC experiments

Esa Tuovinen^*
, Jaakko Härkönen
, Panja Luukka
, Teppo Mäenpää
, Henri Moilanen
, Ivan Kassamakov
, Eija Tuominen

^*Corresponding author for this work

Not published at VTT

University of Helsinki
Aalto University

Research output: Contribution to journal › Article › Scientific › peer-review

2 Citations (Scopus)

Abstract

High resistivity and high oxygen concentration of silicon wafers can be beneficial for the radiation hardness of silicon detectors. Wafers of Magnetic Czochralski silicon (MCz-Si) can be grown with a resistivity of a few kΩcm and with well-controlled, high oxygen concentration. According to the beam test results presented in this paper, n-type MCz-Si bulk, p-strip readout detectors with can be operated with acceptable signal-to-noise ratio up to the irradiation fluence of 1×10¹⁵ cm^-2 1-MeV neutron equivalent. The improved radiation hardness compared to that of traditional p-in-n Float Zone silicon (p-in-n FZ-Si) detectors can be explained by better electric field distribution inside MCz-Si detectors. The difference between the distributions is clearly shown by Transient Current Technique (TCT) measurements, presented in this paper. Thus, strip detectors made on n-type MCz-Si are a feasible option for the outer tracker layers of the potential upgrade of the Large Hadron Collider (LHC), the Super-LHC. This corresponds approximately 95% of the total area of silicon detectors in the Super-LHC.

Original language	English
Pages (from-to)	S79-S82
Journal	Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
Volume	636
Issue number	1 SUPPL.
DOIs	https://doi.org/10.1016/j.nima.2010.04.089
Publication status	Published - 21 Apr 2011
MoE publication type	A1 Journal article-refereed

Keywords

Beam tests
Particle detectors
Radiation hardness
Silicon
Transient current technique

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10.1016/j.nima.2010.04.089

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Tuovinen, E., Härkönen, J., Luukka, P., Mäenpää, T., Moilanen, H., Kassamakov, I., & Tuominen, E. (2011). Magnetic Czochralski silicon strip detectors for Super-LHC experiments. Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, 636(1 SUPPL.), S79-S82. https://doi.org/10.1016/j.nima.2010.04.089

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title = "Magnetic Czochralski silicon strip detectors for Super-LHC experiments",

abstract = "High resistivity and high oxygen concentration of silicon wafers can be beneficial for the radiation hardness of silicon detectors. Wafers of Magnetic Czochralski silicon (MCz-Si) can be grown with a resistivity of a few kΩcm and with well-controlled, high oxygen concentration. According to the beam test results presented in this paper, n-type MCz-Si bulk, p-strip readout detectors with can be operated with acceptable signal-to-noise ratio up to the irradiation fluence of 1×1015 cm-2 1-MeV neutron equivalent. The improved radiation hardness compared to that of traditional p-in-n Float Zone silicon (p-in-n FZ-Si) detectors can be explained by better electric field distribution inside MCz-Si detectors. The difference between the distributions is clearly shown by Transient Current Technique (TCT) measurements, presented in this paper. Thus, strip detectors made on n-type MCz-Si are a feasible option for the outer tracker layers of the potential upgrade of the Large Hadron Collider (LHC), the Super-LHC. This corresponds approximately 95\% of the total area of silicon detectors in the Super-LHC.",

keywords = "Beam tests, Particle detectors, Radiation hardness, Silicon, Transient current technique",

author = "Esa Tuovinen and Jaakko H{\"a}rk{\"o}nen and Panja Luukka and Teppo M{\"a}enp{\"a}{\"a} and Henri Moilanen and Ivan Kassamakov and Eija Tuominen",

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Tuovinen, E, Härkönen, J, Luukka, P, Mäenpää, T, Moilanen, H, Kassamakov, I & Tuominen, E 2011, 'Magnetic Czochralski silicon strip detectors for Super-LHC experiments', Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, vol. 636, no. 1 SUPPL., pp. S79-S82. https://doi.org/10.1016/j.nima.2010.04.089

Magnetic Czochralski silicon strip detectors for Super-LHC experiments. / Tuovinen, Esa; Härkönen, Jaakko; Luukka, Panja et al.
In: Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 636, No. 1 SUPPL., 21.04.2011, p. S79-S82.

Research output: Contribution to journal › Article › Scientific › peer-review

TY - JOUR

T1 - Magnetic Czochralski silicon strip detectors for Super-LHC experiments

AU - Tuovinen, Esa

AU - Härkönen, Jaakko

AU - Luukka, Panja

AU - Mäenpää, Teppo

AU - Moilanen, Henri

AU - Kassamakov, Ivan

AU - Tuominen, Eija

PY - 2011/4/21

Y1 - 2011/4/21

N2 - High resistivity and high oxygen concentration of silicon wafers can be beneficial for the radiation hardness of silicon detectors. Wafers of Magnetic Czochralski silicon (MCz-Si) can be grown with a resistivity of a few kΩcm and with well-controlled, high oxygen concentration. According to the beam test results presented in this paper, n-type MCz-Si bulk, p-strip readout detectors with can be operated with acceptable signal-to-noise ratio up to the irradiation fluence of 1×1015 cm-2 1-MeV neutron equivalent. The improved radiation hardness compared to that of traditional p-in-n Float Zone silicon (p-in-n FZ-Si) detectors can be explained by better electric field distribution inside MCz-Si detectors. The difference between the distributions is clearly shown by Transient Current Technique (TCT) measurements, presented in this paper. Thus, strip detectors made on n-type MCz-Si are a feasible option for the outer tracker layers of the potential upgrade of the Large Hadron Collider (LHC), the Super-LHC. This corresponds approximately 95% of the total area of silicon detectors in the Super-LHC.

AB - High resistivity and high oxygen concentration of silicon wafers can be beneficial for the radiation hardness of silicon detectors. Wafers of Magnetic Czochralski silicon (MCz-Si) can be grown with a resistivity of a few kΩcm and with well-controlled, high oxygen concentration. According to the beam test results presented in this paper, n-type MCz-Si bulk, p-strip readout detectors with can be operated with acceptable signal-to-noise ratio up to the irradiation fluence of 1×1015 cm-2 1-MeV neutron equivalent. The improved radiation hardness compared to that of traditional p-in-n Float Zone silicon (p-in-n FZ-Si) detectors can be explained by better electric field distribution inside MCz-Si detectors. The difference between the distributions is clearly shown by Transient Current Technique (TCT) measurements, presented in this paper. Thus, strip detectors made on n-type MCz-Si are a feasible option for the outer tracker layers of the potential upgrade of the Large Hadron Collider (LHC), the Super-LHC. This corresponds approximately 95% of the total area of silicon detectors in the Super-LHC.

KW - Beam tests

KW - Particle detectors

KW - Radiation hardness

KW - Silicon

KW - Transient current technique

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U2 - 10.1016/j.nima.2010.04.089

DO - 10.1016/j.nima.2010.04.089

M3 - Article

AN - SCOPUS:79955923491

SN - 0168-9002

VL - 636

SP - S79-S82

JO - Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment

JF - Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment

IS - 1 SUPPL.

ER -

Magnetic Czochralski silicon strip detectors for Super-LHC experiments

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Keywords

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