A 71PS-RESOLUTION MULTI-CHANNEL CMOS TIME-TO-DIGITAL CONVERTER FOR POSITRON EMISSION TOMOGRAPHY IMAGING APPLICATIONS

Wu Gao, Christine Hu-Guo, Nicolas Ollivier-Henry, Yann Hu, Deyuan Gao, Tingcun Wei

2009

Abstract

This paper presents a high-resolution multi-channel Time-to-Digital Converter (TDC) for Positron Emission Tomography (PET) imaging system. The TDC using a two-level conversion scheme is proposed for obtaining high timing resolution. Double 10-bit gray counters are designed for coarse conversion while a multiphase sampling technology is presented for fine conversion. In order to achieve better timing resolution with either a faster technology, an array of Delay-locked loops is chosen as a timing generator. A prototype chip of 3-channel TDC is designed and fabricated in AMS 0.35µm CMOS technology. The area of the chip is 8.4 mm2 in size. The measured range of the TDC is 10µs. The time tap is reduced to 71ps with a reference clock of 100MHz. The differential nonlinearity is ±0.1LSB. The circuits will be extended to 64 channels for small animal PET imaging systems.

References

  1. Mbow, N.A, Bard, P., Brasse, D, et al. “A Full-Custom Mixed-Signal CMOS Front-End Readout Chip for High Efficiency Small Animal PET Imaging”, 14th IEEE International Conference on Electronics, Circuits and Systems, pp475-478, Dec. 2007.
  2. Brian K. Swann, Benjamin J. Blalock, Lloyd G. Clonts, et al. “A 100-ps Time-Resolution CMOS Time-toDigital Converter for Positron Emission Tomography Imaging Applications” , IEEE Journal of Solid-State Circuit, Vol. 39, pp. 1839-1852, NOV.2004.
  3. O. Bourrion, L. Gallin-Martel. An integrated CMOS Time-to-digital converter for coincidence detection in a liquid Xenon PET prototype. nuclear instruments and methods in physics research section A, Volume 563, Issue 1,pp 100-103, 2006.
  4. A. S. Yousif and J.W. Haslett. “A fine resolution TDC architecture for next generation PET imaging”, IEEE Trans. Nucl. Sci, vol. 54, pp 1574 - 1582, October 2007.G.H. Li and H.P. Chou. “A high resolution Time-to-digital Converter using two-level vernier delay line technique”. Nuclear Science Symposium Conference Record, 2007. NSS 7807. IEEE, vol. 1, pp 276-280, Nov. 2007.
  5. J. Christiansen. “An integrated high resolution CMOS timing generator based on an array of Delay locked loops”. IEEE journal of solid-state circuits.Vol.31, pp 952-957, July 1996
  6. M. Mota, and J. Christiansen, “A Four Channel, SelfCalibrating, High-Resolution Time-to-Digital Converter,” Proc. IEEE Int'l Conf. Electronics, Circuits, and Systems (ICECS'98), Vol. 2, pp. 155- 159, 1998.
  7. H. Chang, J.Lin, and C. Yang, et al. “A wide-range delaylocked loop with a fixed latency of one clock cycle”, IEEE journal of solid-state circuits, vol.37, pp 1021- 1027. Aug. 2002.
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Paper Citation


in Harvard Style

Gao W., Hu-Guo C., Ollivier-Henry N., Hu Y., Gao D. and Wei T. (2009). A 71PS-RESOLUTION MULTI-CHANNEL CMOS TIME-TO-DIGITAL CONVERTER FOR POSITRON EMISSION TOMOGRAPHY IMAGING APPLICATIONS . In Proceedings of the First International Conference on Computer Imaging Theory and Applications - Volume 1: IMAGAPP, (VISIGRAPP 2009) ISBN 978-989-8111-68-5, pages 171-176. DOI: 10.5220/0001768601710176


in Bibtex Style

@conference{imagapp09,
author={Wu Gao and Christine Hu-Guo and Nicolas Ollivier-Henry and Yann Hu and Deyuan Gao and Tingcun Wei},
title={A 71PS-RESOLUTION MULTI-CHANNEL CMOS TIME-TO-DIGITAL CONVERTER FOR POSITRON EMISSION TOMOGRAPHY IMAGING APPLICATIONS},
booktitle={Proceedings of the First International Conference on Computer Imaging Theory and Applications - Volume 1: IMAGAPP, (VISIGRAPP 2009)},
year={2009},
pages={171-176},
publisher={SciTePress},
organization={INSTICC},
doi={10.5220/0001768601710176},
isbn={978-989-8111-68-5},
}


in EndNote Style

TY - CONF
JO - Proceedings of the First International Conference on Computer Imaging Theory and Applications - Volume 1: IMAGAPP, (VISIGRAPP 2009)
TI - A 71PS-RESOLUTION MULTI-CHANNEL CMOS TIME-TO-DIGITAL CONVERTER FOR POSITRON EMISSION TOMOGRAPHY IMAGING APPLICATIONS
SN - 978-989-8111-68-5
AU - Gao W.
AU - Hu-Guo C.
AU - Ollivier-Henry N.
AU - Hu Y.
AU - Gao D.
AU - Wei T.
PY - 2009
SP - 171
EP - 176
DO - 10.5220/0001768601710176