MRS Proceedings

Table of Contents - Volume  1164  - Symposium L – Nuclear Radiation Detection Materials–2009  

Editors : D.L. Perry, A. Burger, L. Franks, K. Yasuda, M. Fiederie

Articles

Recent Advances in THM CZT for Nuclear Radiation Detection

2009 MRS Spring Meeting.

Jason Mackenziea1, Henry Chena2, Salah A Awadallaa3, Pramodha Marthandama4, Bob Reddena5, Glenn Bindleya6, Zhong Hea7, D. R. Blacka8, Martine Duffa9, Mark Ammana10, J. S. Leea11, Paul Lukea12, M Grozaa13 and A Burgera14

a1 Jason.Mackenzie@redlen.com, Redlen Technologies, Crystal growth, Sidney, Canada

a2 henry.chen@redlen.com, Redlen Technologies, 107-9865 W. saanich Rd, sidney, V8L5Y8, Canada

a3 Salah.awadalla@redlen.com, Redlen Technologies, Product development and characterization, Sidney, Canada

a4 pramodha.Marthandam@redlen.com, Redlen Technologies, Product development and characterization, Sidney, Canada

a5 bob.redden@redlen.com, Redlen Technologies, Crystal growth, Sidney, Canada

a6 Glenn.bindley@redlen.com, Redlen Technologies, Product development and characterization, Sidney, Canada

a7 hezhong@umich.edu, University of Michaigan, Ann-arbor, Michigan, United States

a8 DRblach@nist.gov, 3National Institute of Standards and Technology, Gaithersburg, United States

a9 martine.duff@srnl.doe.gov, 4Savannah River National Laboratory, Aiken, United States

a10 mark_amman@lb.gov, 5Lawrence Berkeley National Laboratory, livermore, California, United States

a11 JSLee@lbl.gov, 5Lawrence Berkeley National Laboratory, livermore, California, United States

a12 pnluke@lb.gov, 5Lawrence Berkeley National Laboratory, livermore, California, United States

a13 mgroza@fisk.edu, Fisk University, Nashvilla, United States

a14 aburger@fisk.edu, Fisk University, Nashville, Tennessee, United States

Abstract

The introduction of large single crystal and high performance CdZnTe (CZT) grown by the traveling heater method (THM) in 2006 has defied conventional myths about the capability of this crystal growth method with respect to the production of spectroscopic grade CZT and its commercialization prospect in medical imaging application. Since then, a lot of progresses have been made, both in the crystal growth and the devices sides. This paper focuses on the development of THM CZT in recent years. Crystalline defects which challenge the thickness scalability of large volume CZT detectors along with efforts and achievements in overcoming these challenges are discussed. Advances in THM CZT crystal growth include 100mm diameter ingot and state-of-the-art device fabrication will also be presented.

(Received April 13 2009)

(Accepted July 09 2009)

Key Words

  • crystal growth;
  • defects;
  • devices
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