SemiSPECT: A Small-animal Imaging System Based on Eight CdZnTe Pixel Detectors

Todd E. Peterson; Hyunki Kim; Michael J. Crawford; Benjamin M. Gershman; William C.J. Hunter; H. Bradford Barber; Lars R. Furenlid; Donald W. Wilson; James M. Woolfenden; Harrison H. Barrett

SemiSPECT: A Small-animal Imaging System Based on Eight CdZnTe Pixel Detectors

Todd E. Peterson, Hyunki Kim, Michael J. Crawford, Benjamin M. Gershman, William C.J. Hunter, H. Bradford Barber, Lars R. Furenlid, Donald W. Wilson, James M. Woolfenden, Harrison H. Barrett

Research output: Contribution to conference › Paper › peer-review

23 Scopus citations

Abstract

We have constructed a SPECT system for small animals that utilizes eight CdZnTe pixel detectors. The eight detectors are arranged in a single octagonal ring, where each views the object to be imaged through a single pinhole. Additional projections are obtained via rotation of the animal. Each CdZnTe detector is approximately 2 mm in thickness and is patterned on one surface into a 64×64 array of pixels with 380 micron pitch. We have designed an electronic readout system capable of collecting data from the eight detectors in listmode. In this scheme each event entry for a gamma-ray hit includes the pulse height of the pixel with the largest signal and the pulse height for each of its eight nearest neighbors. We present details of the overall design, the electronics, and system performance.

Original language	English (US)
Pages	1844-1847
Number of pages	4
State	Published - 2002
Event	2002 IEEE Nuclear Science Symposium Conference Record - Norfolk, VA, United States Duration: Nov 10 2002 → Nov 16 2002

Other

Other	2002 IEEE Nuclear Science Symposium Conference Record
Country/Territory	United States
City	Norfolk, VA
Period	11/10/02 → 11/16/02

Keywords

Biomedical imaging
Cadmium zinc telluride (CdZnTe)
Single photon emission computed tomography (SPECT)
Small-animal imaging

ASJC Scopus subject areas

Radiation
Nuclear and High Energy Physics
Radiology Nuclear Medicine and imaging

Cite this

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title = "SemiSPECT: A Small-animal Imaging System Based on Eight CdZnTe Pixel Detectors",

abstract = "We have constructed a SPECT system for small animals that utilizes eight CdZnTe pixel detectors. The eight detectors are arranged in a single octagonal ring, where each views the object to be imaged through a single pinhole. Additional projections are obtained via rotation of the animal. Each CdZnTe detector is approximately 2 mm in thickness and is patterned on one surface into a 64×64 array of pixels with 380 micron pitch. We have designed an electronic readout system capable of collecting data from the eight detectors in listmode. In this scheme each event entry for a gamma-ray hit includes the pulse height of the pixel with the largest signal and the pulse height for each of its eight nearest neighbors. We present details of the overall design, the electronics, and system performance.",

keywords = "Biomedical imaging, Cadmium zinc telluride (CdZnTe), Single photon emission computed tomography (SPECT), Small-animal imaging",

author = "Peterson, {Todd E.} and Hyunki Kim and Crawford, {Michael J.} and Gershman, {Benjamin M.} and Hunter, {William C.J.} and Barber, {H. Bradford} and Furenlid, {Lars R.} and Wilson, {Donald W.} and Woolfenden, {James M.} and Barrett, {Harrison H.}",

year = "2002",

language = "English (US)",

pages = "1844--1847",

note = "2002 IEEE Nuclear Science Symposium Conference Record ; Conference date: 10-11-2002 Through 16-11-2002",

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T2 - 2002 IEEE Nuclear Science Symposium Conference Record

AU - Peterson, Todd E.

AU - Kim, Hyunki

AU - Crawford, Michael J.

AU - Gershman, Benjamin M.

AU - Hunter, William C.J.

AU - Barber, H. Bradford

AU - Furenlid, Lars R.

AU - Wilson, Donald W.

AU - Woolfenden, James M.

AU - Barrett, Harrison H.

PY - 2002

Y1 - 2002

N2 - We have constructed a SPECT system for small animals that utilizes eight CdZnTe pixel detectors. The eight detectors are arranged in a single octagonal ring, where each views the object to be imaged through a single pinhole. Additional projections are obtained via rotation of the animal. Each CdZnTe detector is approximately 2 mm in thickness and is patterned on one surface into a 64×64 array of pixels with 380 micron pitch. We have designed an electronic readout system capable of collecting data from the eight detectors in listmode. In this scheme each event entry for a gamma-ray hit includes the pulse height of the pixel with the largest signal and the pulse height for each of its eight nearest neighbors. We present details of the overall design, the electronics, and system performance.

AB - We have constructed a SPECT system for small animals that utilizes eight CdZnTe pixel detectors. The eight detectors are arranged in a single octagonal ring, where each views the object to be imaged through a single pinhole. Additional projections are obtained via rotation of the animal. Each CdZnTe detector is approximately 2 mm in thickness and is patterned on one surface into a 64×64 array of pixels with 380 micron pitch. We have designed an electronic readout system capable of collecting data from the eight detectors in listmode. In this scheme each event entry for a gamma-ray hit includes the pulse height of the pixel with the largest signal and the pulse height for each of its eight nearest neighbors. We present details of the overall design, the electronics, and system performance.

KW - Biomedical imaging

KW - Cadmium zinc telluride (CdZnTe)

KW - Single photon emission computed tomography (SPECT)

KW - Small-animal imaging

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SemiSPECT: A Small-animal Imaging System Based on Eight CdZnTe Pixel Detectors

Abstract

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Keywords

ASJC Scopus subject areas

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