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A new time calibration method for switched-capacitor-array-based waveform samplers.

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Title: A new time calibration method for switched-capacitor-array-based waveform samplers.
Authors: Kim, H.1 heejongkim@uchicago.edu, Chen, C.-T.1, Eclov, N.1, Ronzhin, A.2, Murat, P.2, Ramberg, E.2, Los, S.2, Moses, W.3, Choong, W.-S.3, Kao, C.-M.1
Source: Nuclear Instruments & Methods in Physics Research Section A. Dec2014, Vol. 767, p67-74. 8p.
Subjects: Capacitor switching, Calibration, Gaussian beams, Statistical sampling, Electronics, Nuclear counters
Abstract: We have developed a new time calibration method for the DRS4 waveform sampler that enables us to precisely measure the non-uniform sampling interval inherent in the switched-capacitor cells of the DRS4. The method uses the proportionality between the differential amplitude and sampling interval of adjacent switched-capacitor cells responding to a sawtooth-shape pulse. In the experiment, a sawtooth-shape pulse with a 40 ns period generated by a Tektronix AWG7102 is fed to a DRS4 evaluation board for calibrating the sampling intervals of all 1024 cells individually. The electronic time resolution of the DRS4 evaluation board with the new time calibration is measured to be ~2.4 ps RMS by using two simultaneous Gaussian pulses with 2.35 ns full-width at half-maximum and applying a Gaussian fit. The time resolution dependencies on the time difference with the new time calibration are measured and compared to results obtained by another method. The new method could be applicable for other switched-capacitor-array technology-based waveform samplers for precise time calibration. [ABSTRACT FROM AUTHOR]
Copyright of Nuclear Instruments & Methods in Physics Research Section A is the property of Elsevier B.V. and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
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  Data: A new time calibration method for switched-capacitor-array-based waveform samplers.
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  Data: <searchLink fieldCode="AR" term="%22Kim%2C+H%2E%22">Kim, H.</searchLink><relatesTo>1</relatesTo><i> heejongkim@uchicago.edu</i><br /><searchLink fieldCode="AR" term="%22Chen%2C+C%2E-T%2E%22">Chen, C.-T.</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Eclov%2C+N%2E%22">Eclov, N.</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Ronzhin%2C+A%2E%22">Ronzhin, A.</searchLink><relatesTo>2</relatesTo><br /><searchLink fieldCode="AR" term="%22Murat%2C+P%2E%22">Murat, P.</searchLink><relatesTo>2</relatesTo><br /><searchLink fieldCode="AR" term="%22Ramberg%2C+E%2E%22">Ramberg, E.</searchLink><relatesTo>2</relatesTo><br /><searchLink fieldCode="AR" term="%22Los%2C+S%2E%22">Los, S.</searchLink><relatesTo>2</relatesTo><br /><searchLink fieldCode="AR" term="%22Moses%2C+W%2E%22">Moses, W.</searchLink><relatesTo>3</relatesTo><br /><searchLink fieldCode="AR" term="%22Choong%2C+W%2E-S%2E%22">Choong, W.-S.</searchLink><relatesTo>3</relatesTo><br /><searchLink fieldCode="AR" term="%22Kao%2C+C%2E-M%2E%22">Kao, C.-M.</searchLink><relatesTo>1</relatesTo>
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  Data: <searchLink fieldCode="JN" term="%22Nuclear+Instruments+%26+Methods+in+Physics+Research+Section+A%22">Nuclear Instruments & Methods in Physics Research Section A</searchLink>. Dec2014, Vol. 767, p67-74. 8p.
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  Data: <searchLink fieldCode="DE" term="%22Capacitor+switching%22">Capacitor switching</searchLink><br /><searchLink fieldCode="DE" term="%22Calibration%22">Calibration</searchLink><br /><searchLink fieldCode="DE" term="%22Gaussian+beams%22">Gaussian beams</searchLink><br /><searchLink fieldCode="DE" term="%22Statistical+sampling%22">Statistical sampling</searchLink><br /><searchLink fieldCode="DE" term="%22Electronics%22">Electronics</searchLink><br /><searchLink fieldCode="DE" term="%22Nuclear+counters%22">Nuclear counters</searchLink>
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  Data: We have developed a new time calibration method for the DRS4 waveform sampler that enables us to precisely measure the non-uniform sampling interval inherent in the switched-capacitor cells of the DRS4. The method uses the proportionality between the differential amplitude and sampling interval of adjacent switched-capacitor cells responding to a sawtooth-shape pulse. In the experiment, a sawtooth-shape pulse with a 40 ns period generated by a Tektronix AWG7102 is fed to a DRS4 evaluation board for calibrating the sampling intervals of all 1024 cells individually. The electronic time resolution of the DRS4 evaluation board with the new time calibration is measured to be ~2.4 ps RMS by using two simultaneous Gaussian pulses with 2.35 ns full-width at half-maximum and applying a Gaussian fit. The time resolution dependencies on the time difference with the new time calibration are measured and compared to results obtained by another method. The new method could be applicable for other switched-capacitor-array technology-based waveform samplers for precise time calibration. [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
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  Group: Ab
  Data: <i>Copyright of Nuclear Instruments & Methods in Physics Research Section A is the property of Elsevier B.V. and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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        Value: 10.1016/j.nima.2014.08.025
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      – Code: eng
        Text: English
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        PageCount: 8
        StartPage: 67
    Subjects:
      – SubjectFull: Capacitor switching
        Type: general
      – SubjectFull: Calibration
        Type: general
      – SubjectFull: Gaussian beams
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      – SubjectFull: Statistical sampling
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      – SubjectFull: Electronics
        Type: general
      – SubjectFull: Nuclear counters
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      – TitleFull: A new time calibration method for switched-capacitor-array-based waveform samplers.
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              Text: Dec2014
              Type: published
              Y: 2014
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