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# IEEE Transactions on Nuclear Science

## Volume 60 Issue 3  Part 1 • June 2013

This issue contains several parts.Go to:  Part 2  | Part 3

## Filter Results

Displaying Results 1 - 25 of 31
• ### [Front cover]

Publication Year: 2013, Page(s): C1
| PDF (96 KB)
• ### IEEE Transactions on Nuclear Science publication information

Publication Year: 2013, Page(s): C2
| PDF (137 KB)

Publication Year: 2013, Page(s):1469 - 1470
| PDF (166 KB)
• ### Axially Oriented Crystal Geometry Applied to Small-Animal PET System: A Proof of Concept

Publication Year: 2013, Page(s):1471 - 1477
Cited by:  Papers (2)
| | PDF (1084 KB) | HTML

Improving resolution without decreasing sensitivity in positron emission tomography (PET) is of great interest for small animal studies. Traditional PET scanners use radially oriented detector block structures. This geometry implies a relationship between the spatial resolution and the sensitivity. An axially oriented crystal geometry can limit this correlation. With a fine measurement of the dept... View full abstract»

• ### DOI Determination by Rise Time Discrimination in Single-Ended Readout for TOF PET Imaging

Publication Year: 2013, Page(s):1478 - 1486
Cited by:  Papers (15)
| | PDF (1588 KB) | HTML

Clinical TOF PET systems achieve detection efficiency using thick crystals, typically of thickness 2-3 cm. The resulting dispersion in interaction depths degrades spatial resolution for increasing radial positions due to parallax error. Furthermore, interaction depth dispersion results in time pickoff dispersion and thus in degraded timing resolution, and is therefore of added concern in TOF scann... View full abstract»

• ### Implementation of LYSO/PSPMT Block Detector With All Digital DAQ System

Publication Year: 2013, Page(s):1487 - 1494
Cited by:  Papers (11)
| | PDF (1350 KB) | HTML

We are developing, at the Huazhong University of Science and Technology, a small-animal positron emission tomograph (PET) scanner that has two new features. Firstly, it uses detector modules that are based on a new digital readout electronics previously investigated and reported by us. Secondly, it can arrange the detector modules into various scanner geometries for different imaging needs. In thi... View full abstract»

• ### Performance Evaluation of Small Animal PET Scanners With Different System Designs

Publication Year: 2013, Page(s):1495 - 1502
Cited by:  Papers (3)
| | PDF (1396 KB) | HTML

This study evaluated the image quality metrics of small animal PET scanners based upon measured single detector module positioning performance. A semi-analytical approach was developed to study PET scanner performance in the scenario of multiple realizations. Positron range blurring, scanner system response function (SRF) and statistical noise were included in the modeling procedure. The scanner s... View full abstract»

Publication Year: 2013, Page(s):1503 - 1511
Cited by:  Papers (1)
| | PDF (3549 KB) | HTML

Phantoms are suitable tools to simulate body tissues and organs in radiology and radiation therapy. This study presents the development of a physical head and neck phantom and its radiological response for simulating brain pathology. The following features on the phantom are addressed and compared to human data: mass density, chemical composition, anatomical shape, computerized tomography images a... View full abstract»

• ### Development of a Multi-Pixel Photon Counter Module for Positron Emission Tomography

Publication Year: 2013, Page(s):1512 - 1517
Cited by:  Papers (11)
| | PDF (1899 KB) | HTML

A new detector module for positron emission tomography using multi-pixel photon counters (MPPCs) was developed. The detection area is 40 mm × 40 mm using an 8 × 8 MPPC array. The active area of each MPPC is 3 mm × 3 mm. The detector module contains preamplifiers, digital-to-analog converters for setting the bias offset, a 2D resistor network for position encoding, a high-volta... View full abstract»

• ### A Zernike Moment Method for Pulse Shape Discrimination in PMT-Based PET Detectors

Publication Year: 2013, Page(s):1518 - 1526
Cited by:  Papers (3)
| | PDF (1450 KB) | HTML

This paper investigates a new pulse shape discrimination method (PSD) method based on Zernike moment (ZM). This method is applied to get the depth of interaction (DOI) information of scintillation detectors for a positron emission tomography (PET) scanner. The number of moments is studied in order to find the optimal moment number that gains high identification results. It is found that the moment... View full abstract»

• ### Improved Statistics Based Positioning Scheme for Continuous Thick Crystal PET Detectors

Publication Year: 2013, Page(s):1527 - 1532
Cited by:  Papers (2)
| | PDF (919 KB) | HTML

PET detectors based on continuous crystal could be an ideal alternative for current high resolution pixelated PET detectors as long as an effective positioning algorithm is provided. Statistics Based Positioning (SBP) scheme has drawn much attention for its high positioning performance. However, we found that the Gaussian distribution assumption, which the two dimensional SBP (2D SBP) relies on, i... View full abstract»

• ### MPPC Arrays in PET Detectors With LSO and BGO Scintillators

Publication Year: 2013, Page(s):1533 - 1540
Cited by:  Papers (8)
| | PDF (1364 KB) | HTML

Presently, a majority of studies concerning application of silicon photomultipliers (SiPMs) in positron emission tomography detectors are focused on scintillators containing lanthanum (LaBr3) or lutetium (LSO, LYSO, or LFS). However, the modules with the well-known BGO in combination with SiPM light readout are also interesting, owing unique features of SiPMs. In this paper, the two typ... View full abstract»

• ### Design and Performance of a Resistor Multiplexing Readout Circuit for a SiPM Detector

Publication Year: 2013, Page(s):1541 - 1549
Cited by:  Papers (31)  |  Patents (1)
| | PDF (1222 KB) | HTML

A silicon photomultiplier (SiPM)-based positron emission tomography (PET) detector was developed using a resistor network charge division multiplexing circuit for detector readout. The detector consists of a lutetium-yttrium oxy-orthosilicate (LYSO) scintillation crystal array, an SiPM array detector (SPMArray 4, SensL Inc., Cork, Ireland) and the resistor multiplexing network implemented in a thr... View full abstract»

• ### Towards Software-Based Real-Time Singles and Coincidence Processing of Digital PET Detector Raw Data

Publication Year: 2013, Page(s):1550 - 1559
Cited by:  Papers (17)
| | PDF (1582 KB) | HTML

This paper presents a software-based singles and coincidence processing (SCP) architecture for a digital PET/MR system that is based on SiPM detectors with local digitization coupled to preclinical crystal arrays. Compared with traditional PET systems, our system outputs detector raw data of the individual detector elements via optical Gigabit Ethernet interfaces instead of singles or coincidences... View full abstract»

• ### Necessary and Sufficient Consistency Conditions for Fanbeam Projections Along a Line

Publication Year: 2013, Page(s):1560 - 1569
Cited by:  Papers (8)
| | PDF (2145 KB) | HTML

In medical imaging, a fanbeam projection refers to a collection of line integrals of some two-dimensional function, for lines converging on a point known as the source point for X-ray applications. In this work, necessary and sufficient consistency conditions (also known as range conditions) are given for fanbeam projections when the source trajectory follows an infinite straight line. The conditi... View full abstract»

• ### Combined Modalities of Compton Scattering Tomography

Publication Year: 2013, Page(s):1570 - 1577
Cited by:  Papers (1)
| | PDF (2086 KB) | HTML

The requirement to scope and analyze hidden parts of the human body and the limitations of current imaging technologies is motivating the development of novel approaches. In clinical PET/CT systems, the attenuation and activity maps of the studied body region are recovered from measurements. However, the modeling of Compton scattering enables to obtain the attenuation map through the electron dens... View full abstract»

• ### Effect of Local TOF Kernel Miscalibrations on Contrast-Noise in TOF PET

Publication Year: 2013, Page(s):1578 - 1588
Cited by:  Papers (1)
| | PDF (1665 KB) | HTML

TOF PET imaging requires specific calibrations: accurate characterization of the system timing resolution and timing offset is required to achieve the full potential image quality. Current system models used in image reconstruction assume a spatially uniform timing resolution kernel. Furthermore, although the timing offset errors are often pre-corrected, this correction becomes less accurate with ... View full abstract»

• ### TOF-PET Small-Lesion Image Quality Measured Over a Range of Phantom Sizes

Publication Year: 2013, Page(s):1589 - 1595
| | PDF (1454 KB) | HTML

The purpose of this study was to parameterize time-of-flight (TOF) image quality improvement over non-TOF PET using small lesions in a tapering phantom that represents a range of body sizes. A set of 46 1.0-cm spherical inserts was divided into six groups and positioned in a fillable, tapered phantom that represents a range of body dimensions (an oval cross section from 38.5 × 49.5 cm to 6.... View full abstract»

• ### MRI and PET Compatible Bed for Direct Co-Registration in Small Animals

Publication Year: 2013, Page(s):1596 - 1602
| | PDF (899 KB) | HTML

To obtain an accurate co-registration with stand-alone PET and MRI scanners, we developed a compatible bed system for mice and rats that enables both images to be acquired without repositioning the animals. MRI acquisitions were performed on a preclinical 7T scanner (Pharmascan, Bruker), whereas PET scans were acquired on a YAP-(S)PET (ISE s.r.l.). The bed performance was tested both on a phantom ... View full abstract»

• ### Handling of Bad Pixels on Pixelated Solid State Detectors

Publication Year: 2013, Page(s):1603 - 1608
| | PDF (990 KB) | HTML

Bad pixel correction on pixelated solid-state detectors typically uses the average of the direct neighboring pixels (AVG) to derive the value of a bad pixel. However, the AVG approach was suboptimal for high resolution imaging. Therefore, we developed a least gradient approach (LGA) in this work. In the LGA approach, the gradients of the image in a 5 × 5 box centered at the bad pixel were c... View full abstract»

• ### Generalization Evaluation of Machine Learning Numerical Observers for Image Quality Assessment

Publication Year: 2013, Page(s):1609 - 1618
Cited by:  Papers (9)
| | PDF (2480 KB) | HTML

In this paper, we present two new numerical observers (NO) based on machine learning for image quality assessment. The proposed NOs aim to predict human observer performance in a cardiac perfusion-defect detection task for single-photon emission computed tomography (SPECT) images. Human observer (HumO) studies are now considered to be the gold standard for task-based evaluation of medical images. ... View full abstract»

• ### High Resolution and High Contrast Imaging With Thin ${rm SrI} _{2}$-Scintillator Screens

Publication Year: 2013, Page(s):1619 - 1623
Cited by:  Papers (1)
| | PDF (1251 KB) | HTML

The Eu2+ activated SrI2 is gaining ground in spectroscopic applications, thanks to its excellent scintillation properties like high light yield and good energy resolution. The exploitation of these properties for other application fields is limited by the hygroscopic nature of the SrI2. Single crystal scintillating screens exhibit high spatial resolution, this comb... View full abstract»

• ### Iterative Reconstruction of Coded Source Neutron Radiographs

Publication Year: 2013, Page(s):1624 - 1631
Cited by:  Papers (1)
| | PDF (3290 KB) | HTML

A coded source facilitates high-resolution neutron imaging through magnification but requires that the radiographic data be deconvolved. A comparison of convolution-based and model-based de-blurring algorithms has been performed. Two convolution-based approaches are assessed, direct deconvolution and an iterative algorithm based on a maximum likelihood estimation (MLE)-like framework. The model-ba... View full abstract»

• ### Fabrication and Performance of Columnar CsI(Tl) Scintillation Films With Single Preferred Orientation

Publication Year: 2013, Page(s):1632 - 1636
Cited by:  Papers (5)
| | PDF (1806 KB) | HTML

CsI(Tl) scintillation films with columnar structure are now widely used for X-ray imaging. In this work, CsI(Tl) films were manufactured on glass substrates by the thermal deposition method. The influence of deposition conditions on the microstructure and crystalline property of the films was studied by scanning electron microscopy (SEM) and X-ray diffraction (XRD). The films showed only (200) pla... View full abstract»

• ### Characterization of a New MR Compatible Small Animal PET Scanner Using Monte-Carlo Simulations

Publication Year: 2013, Page(s):1637 - 1644
Cited by:  Papers (10)
| | PDF (668 KB) | HTML

We are currently designing a small animal PET insert for use in an MRI with a bore size that constrains the insert inner diameter to be no larger than 66 mm while leaving 25 mm for ring thickness. The insert will be made from 10 mm thick DOI-capable Dual Layer Offset LYSO blocks coupled to MR-compatible SiPMs. The block is made from a 9 × 9 array of 1.345 × 4 mm3 crystals ... View full abstract»

## Aims & Scope

IEEE Transactions on Nuclear Science focuses on all aspects of the theory and applications of nuclear science and engineering, including instrumentation for the detection and measurement of ionizing radiation; particle accelerators and their controls; nuclear medicine and its application; effects of radiation on materials, components, and systems; reactor instrumentation and controls; and measurement of radiation in space.

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## Meet Our Editors

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