Results 61 to 70 of about 442,874 (245)

Positron Confinement Characteristics of Dipole Field Configuration

南方能源建设
[Objective] This paper aims to reveal the confinement characteristics and loss mechanisms of positrons in a suspended dipole magnetic field, present an optimized method based on rotating electrode technology to achieve long-term and stable positron ...
Zhao WANG, Teng LIU, Zhiming YANG, Junjie DU, Guoshu ZHANG   +4 more
doaj   +1 more source

Positrons in surface physics [PDF]

Surface Science Reports, 2016
Within the last decade powerful methods have been developed to study surfaces using bright low-energy positron beams. These novel analysis tools exploit the unique properties of positron interaction with surfaces, which comprise the absence of exchange interaction, repulsive crystal potential and positron trapping in delocalized surface states at low ...
openaire   +2 more sources

Toward ⁶⁸Ga and ⁶⁴Cu Positron Emission Tomography Probes: Is H₂dedpa-N,N′-pram the Missing Link for dedpa Conjugation? [PDF]

, 2023
Celia Pena-Bonhome, Desiree Fiaccabrino, Tamara Rama, Daniel Fernández-Pavón, Lily Southcott, Zhengxing Zhang, Kuo‐Shyan Lin, A. De Blas, Brian O. Patrick, Paul Schaffer, Chris Orvig, Marı́a de Guadalupe Jaraquemada-Peláez, T. Rodríguez-Blas   +12 more
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Accessing weak neutral-current coupling $g_{AA}^{eq}$ using positron and electron beams at Jefferson Lab [PDF]

, 2021
Xiaochao Zheng, Jens Erler, Qishan Liu, Huber Spiesberger   +3 more
openalex   +1 more source

Selective and divided attention during visual discriminations of shape, color, and speed: functional anatomy by positron emission tomography

Journal of Neuroscience, 1991
Positron emission tomography (PET) was used to identify the neural systems involved in discriminating the shape, color, and speed of a visual stimulus under conditions of selective and divided attention.
M. Corbetta, F. Miezin, S. Dobmeyer, G. Shulman, S. Petersen   +4 more
semanticscholar   +1 more source

AV‐1451 tau and β‐amyloid positron emission tomography imaging in dementia with Lewy bodies

Annals of Neurology, 2016
Patients with probable dementia with Lewy bodies (DLB) often have Alzheimer's disease (AD)‐related pathology. Our objective was to determine the pattern of positron emission tomography (PET) tau tracer AV‐1451 uptake in patients with probable DLB ...
K. Kantarci, V. Lowe, B. Boeve, M. Senjem, N. Tosakulwong, T. Lesnick, Anthony J. Spychalla, J. Gunter, J. Fields, J. Graff‐Radford, T. Ferman, David T. Jones, M. Murray, D. Knopman, C. Jack, R. Petersen   +15 more
semanticscholar   +1 more source

Fibroblast activation protein expression in the tumor microenvironment is crucial in survival prediction and differentiation of recurrent gliomas: a head-to-head comparison of 68Ga-FAPI-04 and 18F-FET in PET/CT imaging

EJNMMI Radiopharmacy and Chemistry
Background The precise differentiation of recurrent glioma from treatment-related changes, such as pseudoprogression or radiation necrosis, is essential for treatment planning and remains a significant challenge.
Tao Hua, Qi Huang, Zhirui Zhou, Weiyan Zhou, Jianbo Wen, Fang Xie, Ming Li, Yihui Guan, Dongxiao Zhuang   +8 more
doaj   +1 more source

Formation of antihydrogen beams from positron–antiproton interactions

New Journal of Physics, 2019
The formation of a beam of antihydrogen atoms when antiprotons pass through cold, dense positron plasmas is simulated for various plasma properties and antiproton injection energies.
S Jonsell, M Charlton
doaj   +1 more source

Polarised Positrons for the ILC

, 2007
Presented at the XXXI International Conference of Theoretical Physics, "Matter to the Deepest", Ustron, Poland, September 5--11 ...
openaire   +4 more sources

Deeply virtual Compton scattering using a positron beam in Hall-C at\n Jefferson Lab [PDF]

, 2021
Andrei Afanasev, I. Albayrak, S. Ali, M. J. Amaryan, J. R. M. Annand, A. Asaturyan, Vincenzo Bellini, В. В. Бердников, M. Boër, Kai-Thomas Brinkmann, W. J. Briscoe, A. Camsonne, M. Caudron, L. Causse, M. Carmignotto, Donal B. Day, M. Defurne, S. Diehl, R. Ent, P. Chatagnon, R. Dupré, D. Dutta, M. Ehrhart, Madappuli Arachchige Ishara Fernando, T. A. Forest, M. Guidal, J. Grames, P. Guèye, S. Habet, D. Hamilton, A. Hobart, T. Horn, C. E. Hyde-Wright, G. Kalicy, D. M. Keller, C. Keppel, M. Kerver, E. Kinney, H. S. Ko, D. Marchand, P. Markowitze, M. Mazouz, M. McCaughan, B. McKinnon, A. Mkrtchyan, H. Mkrtchyan, M. Muhoza, C. Muñoz Camacho, J. J. Murphy, P. Nadel-Turoński, S. Niccolai, G. Niculescu, R. Novotny, R. Paremuzyan, Ian L. Pegg, K. Price, H. Rashad, J. Roche, R. Rondon, B. Sawatzky, V. Sergeyeva, S. Širca, A. Somov, I. I. Strakovsky, V. Tadevosyan, R. Trotta, H. Voskanyan, E. Voutier, B. Wojtsekhowski, S. A. Wood, S. Zhamkochyan, J. Zhang, Shengying Zhao, C. Zorn   +73 more
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