Results 151 to 160 of about 727,683 (238)

Improvement of Reconstruction Algorithm for Compton Camera

Improvement of Reconstruction Algorithm for Compton Camera
A Compton camera is a device for imaging a radio-source distribution without using a mechanical collimator. Ordered-subset Expectation-Maximization (OS-EM) is widely used to reconstruct Compton images. However, the OS-EM algorithms tend to over-concentrate and amplify noise in the reconstructed image.
openaire  

Recent advances in radionuclide medical imaging techniques. [PDF]

Front Med (Lausanne)
Xu S, Liu G, Wei Q, Liu H, Wu J, Liu Y, He ZX.   +6 more
europepmc   +1 more source

Material efficiency studies for a Compton camera designed to measure characteristic prompt gamma rays emitted during proton beam radiotherapy. [PDF]

Phys Med Biol, 2011
Robertson D, Polf JC, Peterson SW, Gillin MT, Beddar S.   +4 more
europepmc   +1 more source

Y-90 Bremsstrahlung Imaging using Compton Camera

Y-90 Bremsstrahlung Imaging using Compton Camera
Yttrium-90 (Y-90) is almost exclusively a high-energy beta-particle emitting radionuclide used in radiotherapy. Generally, Y-90 are imaged by bremsstrahlung SPECT. However, the images demonstrate a low quality. Thus, we considered using a Compton camera. 30 MBq of Y-90 was encapsulated in a glass bottle.
openaire  

Evaluation of a stochastic reconstruction algorithm for use in Compton camera imaging and beam range verification from secondary gamma emission during proton therapy. [PDF]

Phys Med Biol, 2012
Mackin D, Peterson S, Beddar S, Polf J.
europepmc   +1 more source

Compton Imaging of Ac-225 In Pre-clinical Phantoms With a 3D-positioning CZT Camera. [PDF]

IEEE Trans Radiat Plasma Med Sci
Das B, Mehrdel B, Goodman D, Streicher M, Seo Y, Caravaca J.   +5 more
europepmc   +1 more source

Quantitative imaging of 478-keV prompt gamma rays from Boron neutron capture reactions. [PDF]

Sci Rep
Mizumoto T, Komura S, Takada A, Sakurai Y, Tanimori T.   +4 more
europepmc   +1 more source

Multiplexed imaging of radionuclides. [PDF]

Nat Biomed Eng
Soultanidis G, Herraiz JL, Fayad ZA, Grimm J, Teunissen AJP.   +4 more
europepmc   +1 more source

Hybrid compton-PET imaging for ion-range verification: a preclinical study for proton, helium, and carbon therapy at HIT. [PDF]

Eur Phys J Plus
Balibrea-Correa J, Lerendegui-Marco J, Ladarescu I, Morell S, Guerrero C, Rodríguez-González T, Jiménez-Ramos MDC, Quesada JM, Bauer J, Brons S, Domingo-Pardo C.   +10 more
europepmc   +1 more source

Hybridization and introgression between two fig trees with contrasting ecological preferences. [PDF]

BMC Ecol Evol
Kohkaew R, Ding Y, Pothasin P, Srisawad N, Compton SG, Yu H.   +5 more
europepmc   +1 more source