Zobrazeno 1 - 10
of 33
pro vyhledávání: '"Kent C. Burr"'
Publikováno v:
Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. 887:144-149
This paper introduces a systematic way to measure most features of the silicon photomultipliers (SiPM). We implement an efficient two-laser procedure to measure the recovery time. Avalanche probability was found to play an important role in explainin
Autor:
Jeffrey Kolthammer, Kent C. Burr, Gin-Chung Wang, Xiaoli Li, Huini Du, Xiaofeng Niu, Karthik Balakrishnan
Publikováno v:
IEEE Transactions on Nuclear Science. 63:1335-1342
When comparing the performance of time-of-flight whole-body PET scanners, timing resolution is one important benchmark. Timing performance is heavily influenced by detector and electronics design. Even for the same scanner design, measured timing res
Publikováno v:
IEEE Transactions on Nuclear Science. :1-8
Adding time-of-flight (TOF) technology has been proven to improve image quality in positron emission tomography (PET). In order for TOF information to significantly reduce the statistical noise in reconstructed PET images, good timing resolution is n
Publikováno v:
2016 IEEE Nuclear Science Symposium, Medical Imaging Conference and Room-Temperature Semiconductor Detector Workshop (NSS/MIC/RTSD).
We developed a modular and scalable PMT-based detector for a Time-of-Flight PET system. The detector is divided into 5 segments. The position within each segment is determined by applying Anger logic to 4 PMTs which read out the segment and using a c
Autor:
D.E. Castleberry, Kent C. Burr, Adrian Ivan, Richard Farrell, James Walter Leblanc, Kanai S. Shah
Publikováno v:
IEEE Transactions on Nuclear Science. 51:1791-1798
We report on the evaluation of a prototype small-animal positron emission tomography (PET) detector with depth-of-interaction (DOI) encoding. The detector consisted of an 8/spl times/8 array of scintillator crystals that were read out on the top and
Autor:
Ronald Grazioso, Adrian Ivan, K. S. Shah, Chang Lyong Kim, Richard Farrell, Scott Stephen Zelakiewicz, David Leo McDaniel, Kent C. Burr, Jaroslaw Glodo, James Walter Leblanc, Alexander Ganin
Publikováno v:
IEEE Transactions on Nuclear Science. 50:792-796
A gamma ray detector for PET, consisting of an array of mixed lutetium oxyorthosilicate (MLS) scintillator crystals coupled to a position sensitive avalanche photodiode (PSAPD), was evaluated. The scintillator array was constructed from individual ML
Autor:
Jinyi Qi, Daniel Gagnon, Ting Xia, Evren Asma, Wenli Wang, Karthik Balakrishnan, Xiaofeng Niu, Hongwei Ye, Jian Zhou, Huini Du, Kent C. Burr, Changguo Ji
Publikováno v:
2014 IEEE Nuclear Science Symposium and Medical Imaging Conference (NSS/MIC).
We propose a new method for modeling the detector module crystal positioning-blur and mis-positioning errors based on the detector modules' flood histograms (crystal position map) and crystal segmentation maps and use simulations for validation. Firs
Autor:
C. L. Tang, Kent C. Burr
Publikováno v:
Journal of Nonlinear Optical Physics & Materials. :127-150
Time-resolved two-photon induced luminescence spectroscopy is used to study the relaxation dynamics of holes in GaAs following valence-to-conduction band femtosecond pulse excitation in the near-infrared and heavy- and light-hole to split-off resonan
Publikováno v:
Journal of Nonlinear Optical Physics & Materials. :61-71
The recent development of periodically poled lithium niobate (PPLN) has led to a variety of highly efficient and compact all-solid-state nonlinear optical devices. Of particular interest are the optical parametric oscillators. We have most recently d
Autor:
Kent C. Burr, Huini Du
Publikováno v:
2012 IEEE Nuclear Science Symposium and Medical Imaging Conference Record (NSS/MIC).
We describe a new algorithm for automatic segmenting crystal position map (flood histogram) for PET scintillation detectors. The algorithm naturally reproduces the distortion patterns that are observed in flood histograms generated using Anger logic.