2016 IEEE Nuclear Science Symposium, Medical Imaging Conference and Room-Temperature Semiconductor Detector Workshop (NSS/MIC/RTSD)最新文献_第9页

Test and characterization of 20 pre-series hamamatsu R5916-MOD photomultiplier tubes for the ICARUS T600 detector 用于ICARUS T600探测器的20个预系列滨松R5916-MOD光电倍增管的测试和表征

2016 IEEE Nuclear Science Symposium, Medical Imaging Conference and Room-Temperature Semiconductor Detector Workshop (NSS/MIC/RTSD) Pub Date : 2016-10-01 DOI: 10.1109/NSSMIC.2016.8069768

G. Raselli, M. Babicz, V. Bellini, M. Bonesini, T. Cervi, A. Falcone, U. Kose, A. Menegolli, C. Montanari, M. Nessi, F. Pietropaolo, M. Rossella, M. Spanu, M. Torti, F. Tortorici, A. Zani

引用次数: 6

LAUROC: “A new electronically cooled line-terminating preamplifier for the ATLAS liquid argon calorimeter upgrade” 一种用于ATLAS液氩量热计升级的新型电子冷却线端前置放大器

2016 IEEE Nuclear Science Symposium, Medical Imaging Conference and Room-Temperature Semiconductor Detector Workshop (NSS/MIC/RTSD) Pub Date : 2016-10-01 DOI: 10.1109/NSSMIC.2016.8069900

F. Dulucq, C. de La Taille, G. Martin-Chassard, N. Seguin-Moreau, L. Duflot, N. Morange, L. Serin, S. Simion

{"title":"LAUROC: “A new electronically cooled line-terminating preamplifier for the ATLAS liquid argon calorimeter upgrade”","authors":"F. Dulucq, C. de La Taille, G. Martin-Chassard, N. Seguin-Moreau, L. Duflot, N. Morange, L. Serin, S. Simion","doi":"10.1109/NSSMIC.2016.8069900","DOIUrl":"https://doi.org/10.1109/NSSMIC.2016.8069900","url":null,"abstract":"The readout electronics of the ATLAS Liquid Argon (LAr) Calorimeter (for the phase II of the high luminosity Large Hadron Collider at CERN) will be replaced and integrated in a single chip in order to reduce the power dissipation by an order of magnitude and to provide fully digital data. The cornerstone of the circuit is the preamplifier which is very demanding in terms of low noise, large dynamic range (at least 16 bits) and precise input impedance (25 or 50 Ohms) to terminate the cables from the detector. An innovative architecture is proposed to fulfill these requirements: a current conveyer and a single resistor are imbedded as feedback of a low noise amplifier. This architecture ensures accurate input impedance over a large frequency range (100MHz) as well as input current range (10mA). The noise remains low thanks to this architecture which acts as an “electronically cooled” resistor out of an ultra-low noise amplifier (0.4 n V / √Hz). This design provides at the same time a current and a voltage output which could be used as high and low gain paths. An anti-saturation system is embedded to switch off the high gain when is saturated. “LAUROC”, which stands for Liquid Argon Upgrade Read-Out Chip, represents the first step of this new chip development designed in TSMC 130nm technology by OMEGA. The chip was sent in fabrication in April and is expected during summer to be tested in laboratory on a test board developed by LAL group.","PeriodicalId":184587,"journal":{"name":"2016 IEEE Nuclear Science Symposium, Medical Imaging Conference and Room-Temperature Semiconductor Detector Workshop (NSS/MIC/RTSD)","volume":"25 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123611692","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 2

Implementation of position and angle uncertainties in the muon reconstruction of the CMS experiment, and impact on the performance CMS实验中位置和角度的不确定性对μ子重建性能的影响

2016 IEEE Nuclear Science Symposium, Medical Imaging Conference and Room-Temperature Semiconductor Detector Workshop (NSS/MIC/RTSD) Pub Date : 2016-10-01 DOI: 10.1109/NSSMIC.2016.8069633

G. Abbiendi, S. S. Chhibra

引用次数: 0

Design concepts and characterization of a next generation clinical PET detector 下一代临床PET检测器的设计概念和特性

2016 IEEE Nuclear Science Symposium, Medical Imaging Conference and Room-Temperature Semiconductor Detector Workshop (NSS/MIC/RTSD) Pub Date : 2016-10-01 DOI: 10.1109/NSSMIC.2016.8069552

J. Cates, C. Levin

{"title":"Design concepts and characterization of a next generation clinical PET detector","authors":"J. Cates, C. Levin","doi":"10.1109/NSSMIC.2016.8069552","DOIUrl":"https://doi.org/10.1109/NSSMIC.2016.8069552","url":null,"abstract":"The future of positron emission tomography (PET) is systems with ultra-precise coincidence time resolution (CTR) to advance time-of-flight PET (TOF-PET) performance. Current state-of-the-art commercial PET systems have 350-800 ps fullwidth-at-half-maximum (FWHM) timing performance, constraining annihilation events to lie somewhere within a 5–12 cm region along system detector response lines (LORs). This constraint is applied during the image reconstruction process to enhance image SNR for improved lesion detectability, increased accuracy and precision of lesion uptake measurements, less sensitivity to errors in data correction techniques (normalization, scatter, and attenuation corrections), lower injected dose, or shorter scan time. The effect of these improvements on image quality and accuracy scales with system CTR performance, and a long-standing milestone for the TOFPET community is to drive system CTR towards 100 ps FWHM (1.5 cm localization along LORs). At this level of performance, a factor of five improvement in SNR can be realized compared to non-TOF imaging, with a transformational impact on quantitative PET imaging in many count starved and contrast-limited scenarios. Traditional PET detector designs are not able to achieve this level of CTR performance, and thus new detector concepts and signal processing methods should be explored to advance system CTR","PeriodicalId":184587,"journal":{"name":"2016 IEEE Nuclear Science Symposium, Medical Imaging Conference and Room-Temperature Semiconductor Detector Workshop (NSS/MIC/RTSD)","volume":"84 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122025945","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Radiation damage studies of new intrinsically radiation-hard scintillators 新型本质硬辐射闪烁体的辐射损伤研究

2016 IEEE Nuclear Science Symposium, Medical Imaging Conference and Room-Temperature Semiconductor Detector Workshop (NSS/MIC/RTSD) Pub Date : 2016-10-01 DOI: 10.1109/NSSMIC.2016.8069798

B. Bilki, Y. Onel, E. Tiras, J. Wetzel, D. Winn

引用次数: 1

Neutron imaging detector based on multiple layers of boron-coated straws 基于多层硼涂层吸管的中子成像探测器

2016 IEEE Nuclear Science Symposium, Medical Imaging Conference and Room-Temperature Semiconductor Detector Workshop (NSS/MIC/RTSD) Pub Date : 2016-10-01 DOI: 10.1109/NSSMIC.2016.8069723

J. Lacy, Murari Regmi, A. Athanasiades, Christopher S. Martin, G. Vazquez-Flores, G. Ehlers

{"title":"Neutron imaging detector based on multiple layers of boron-coated straws","authors":"J. Lacy, Murari Regmi, A. Athanasiades, Christopher S. Martin, G. Vazquez-Flores, G. Ehlers","doi":"10.1109/NSSMIC.2016.8069723","DOIUrl":"https://doi.org/10.1109/NSSMIC.2016.8069723","url":null,"abstract":"In previous projects funded by the DOE, Proportional Technologies, Inc. developed the basic design of a neutron imaging detector, based on the boron-coated straw technology, aimed to replace 3He tubes in large-scale neutron science instruments. Recent efforts have focused on automated production methods, including a critical 10B4C high volume sputter coating system, and automated in-line straw tube production system, in order to dramatically increase production capacity and reduce cost. A limited-scale prototype developed during Phase I of the project was operated successfully in the Cold Neutron Chopper Spectrometer (CNCS) at the SNS (ORNL) over a period of 6 months, for more than 2500 hours logging more than 200 million events. The prototype demonstrated longitudinal spatial resolution of 5.5 mm (FWHM), and good image uniformity (2%). A 5-layer deep, fully operational, imaging panel has been completed recently. The panel was installed in the CNCS instrument, and tested in real neutron scattering experiments. Results of detection efficiency over a range of neutron wavelengths, image uniformity, and time-of-flight distribution are reported.","PeriodicalId":184587,"journal":{"name":"2016 IEEE Nuclear Science Symposium, Medical Imaging Conference and Room-Temperature Semiconductor Detector Workshop (NSS/MIC/RTSD)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129681133","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 3

OrthoCT for tumor head irradiation: A simulation study 正位oct对肿瘤头部照射的模拟研究

2016 IEEE Nuclear Science Symposium, Medical Imaging Conference and Room-Temperature Semiconductor Detector Workshop (NSS/MIC/RTSD) Pub Date : 2016-10-01 DOI: 10.1109/NSSMIC.2016.8069391

H. Simões, A. Lopes, P. Crespo

{"title":"OrthoCT for tumor head irradiation: A simulation study","authors":"H. Simões, A. Lopes, P. Crespo","doi":"10.1109/NSSMIC.2016.8069391","DOIUrl":"https://doi.org/10.1109/NSSMIC.2016.8069391","url":null,"abstract":"A new imaging technique, called orthogonal ray imaging, has been proposed to assist external-beam radiation therapy treatments. This technique consists in detecting radiation scattered in the patient and emitted perpendicularly to the incident beam axis. Since photon scattering in the patient occurs with higher intensity in tissues of higher density, a detection system (constituted by a multi-slice collimator and a photon detector) positioned perpendicularly to the beam axis yields a signal proportional to the photons that escaped the patient (i.e., a signal correlated with patient morphology). Unlike some of the other imaging techniques applied in treatments based on image-guided radiotherapy such as cone-beam computed tomography, OrthoCT does not require rotational irradiation of the target. This technique provides CT-like images with very-low dose, potentially sparing the healthy tissues around the target to an unnecessary irradiation (since rotation of X-ray source is not required). This system can potentially be useful to (1) on-board imaging, or (2) real-time radiotherapy monitoring. In this work, we report Geant4 simulation results with an anthropomorphic phantom to analyze the capability of OrthoCT in detecting pertinent and clinically relevant morphological variations during head irradiation. The counts distributions obtained show a good visual agreement with the simulated dose and the phantom structures.","PeriodicalId":184587,"journal":{"name":"2016 IEEE Nuclear Science Symposium, Medical Imaging Conference and Room-Temperature Semiconductor Detector Workshop (NSS/MIC/RTSD)","volume":"41 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127402218","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 6

Design of the rapidly relocatable tagged neutron inspection system of the C-BORD project C-BORD项目可快速定位标记中子检测系统的设计

2016 IEEE Nuclear Science Symposium, Medical Imaging Conference and Room-Temperature Semiconductor Detector Workshop (NSS/MIC/RTSD) Pub Date : 2016-10-01 DOI: 10.1109/NSSMIC.2016.8069693

A. Sardet, B. Pérot, C. Carasco, G. Sannie, S. Moretto, G. Nebbia, C. Fontana, M. Moszynski, P. Sibczyński, K. Grodzicki, L. Swiderski, A. Iovene, C. Tintori

{"title":"Design of the rapidly relocatable tagged neutron inspection system of the C-BORD project","authors":"A. Sardet, B. Pérot, C. Carasco, G. Sannie, S. Moretto, G. Nebbia, C. Fontana, M. Moszynski, P. Sibczyński, K. Grodzicki, L. Swiderski, A. Iovene, C. Tintori","doi":"10.1109/NSSMIC.2016.8069693","DOIUrl":"https://doi.org/10.1109/NSSMIC.2016.8069693","url":null,"abstract":"Within the framework of the European H2020 C-BORD project, aiming at improving container inspection technologies, a compact and “Rapidly Relocatable Tagged Neutron Inspection System”, called RRTNIS, is being developed taking into account past EURITRACK experience with a portal TNIS, and the latest technologies in terms of associated particle neutron generator and data acquisition electronics. A dedicated shield surrounding the neutron generator has been designed with MCNP6 to limit the size of the restricted area and the count rate on gamma detectors, which are located very close to the generator. This new design with “reflection” detectors only, i.e. in backscattering position, is indeed more efficient to detect suspect items, like explosives or illicit drugs, in bottom regions of the container, compared to EURITRACK detectors which were mainly located above the container. It also allows designing a relocatable system for different inspection sites like seaports, borders, or other checkpoints. Dose and count rate calculations are presented to determine the restricted area and facilitate the design of the data acquisition electronics, respectively.","PeriodicalId":184587,"journal":{"name":"2016 IEEE Nuclear Science Symposium, Medical Imaging Conference and Room-Temperature Semiconductor Detector Workshop (NSS/MIC/RTSD)","volume":"13 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131048475","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 11

Bayesian MRI noise filtering in complex domain 复域贝叶斯MRI噪声滤波

2016 IEEE Nuclear Science Symposium, Medical Imaging Conference and Room-Temperature Semiconductor Detector Workshop (NSS/MIC/RTSD) Pub Date : 2016-10-01 DOI: 10.1109/NSSMIC.2016.8069571

Antonietta Sorriso, F. Baselice, G. Ferraioli, V. Pascazio

引用次数: 0

Null-space smoothing of tomographic images using TV norm minimization 使用TV范数最小化的层析图像的零空间平滑

2016 IEEE Nuclear Science Symposium, Medical Imaging Conference and Room-Temperature Semiconductor Detector Workshop (NSS/MIC/RTSD) Pub Date : 2016-10-01 DOI: 10.1109/NSSMIC.2016.8069513

Bruce D. Smith

{"title":"Null-space smoothing of tomographic images using TV norm minimization","authors":"Bruce D. Smith","doi":"10.1109/NSSMIC.2016.8069513","DOIUrl":"https://doi.org/10.1109/NSSMIC.2016.8069513","url":null,"abstract":"Smoothing is desirable in tomographic imaging when it reduces the effects of noise in the data and is undesirable when it smooths a small feature such as a tumor or a lesion so much that they become undetectable. Linear algebra can be used to identify a significant problem associated with reconstruction from incomplete data set; namely, the rank of the resulting system matrix is less then full. To maximize its benefit and to minimize its harm, when smoothing is used in this case, it seems desirable to give more credence to the row-space component of the reconstruction than the null-space because the tomographic data contains only information about the row-space component of the object. The objective of the work presented here is to propose and demonstrate a method, which is called null-space smoothing, for achieving this. The Methodology used involved computer generated data. ART is used to reconstruct the row-space component of the Shepp and Logan phantom. By solving a convex optimization problem, an image in the null-space was added to the reconstruction so that the resulting image had a minimum TV norm; thus, leaving the row-space component unchanged. It is concluded that although null-space smoothing can produce smooth images with an unchanged row-space component, more work needs to be done in the future to demonstrate its usefulness with real data.","PeriodicalId":184587,"journal":{"name":"2016 IEEE Nuclear Science Symposium, Medical Imaging Conference and Room-Temperature Semiconductor Detector Workshop (NSS/MIC/RTSD)","volume":"2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128759589","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 2