Results 71 to 80 of about 50,958 (240)

Performance evaluation of fifth-generation ultra-high-resolution SPECT system with two stationary detectors and multi-pinhole imaging

EJNMMI Physics, 2020
Background Small-animal single-photon emission computed tomography (SPECT) systems with multi-pinhole collimation and large stationary detectors have advantages compared to systems with moving small detectors.
Jan V. Hoffmann, Jan P. Janssen, Takayuki Kanno, Takayuki Shibutani, Masahisa Onoguchi, Constantin Lapa, Jan-Peter Grunz, Andreas K. Buck, Takahiro Higuchi   +8 more
doaj   +1 more source

rSPECT: a compact gamma camera based SPECT system for small-animal imaging [PDF]

, 2009
Proceeding of: 2009 IEEE Nuclear Science Symposium Conference Record (NSS/MIC), Orlando, Florida, 25-31 October 2009We have developed a compact and modular gamma camera system and assessed its performance when used on a small-animal SPECT prototype ...
Abella García, Mónica, Desco Menéndez, Manuel, Lage Negro, Eduardo, Martínez, Naira P., Ros, Domènec, Sisniega, Alejandro, Tapias, Gustavo, Vaquero López, Juan José, Vidal-Migallón, I., Villena, José L.   +9 more
core   +2 more sources

Local‐to‐Nonlocal Second‐Harmonic Generation from Electrically Tunable Intersubband Polaritonic Metasurfaces

Advanced Science, Volume 13, Issue 9, 13 February 2026.
A local‐to‐nonlocal SHG process is demonstrated on an electrically tunable metasurface, combining an LSPR at the FF with a TM‐GMR at the SH to achieve independent dual tunability. Through modal‐overlap engineering of the proposed scheme, a high‐χ(2) MQW meta‐atom delivers strong nonlinearity while achieving 2‐DoF SH control with minimal trade‐offs ...
Jaesung Kim, Hyeongju Chung, Seongjin Lee, Gerhard Boehm, Mikhail A. Belkin, Jongwon Lee   +5 more
wiley   +1 more source

Direct Measurement of Mammographic X-Ray Spectra with a Digital CdTe Detection System

Sensors, 2012
In this work we present a detection system, based on a CdTe detector and an innovative digital pulse processing (DPP) system, for high-rate X-ray spectroscopy in mammography (1–30 keV).
Giuseppe Raso, Stefano Del Sordo, Gaetano Gerardi, Fabio Principato, Leonardo Abbene   +4 more
doaj   +1 more source

Development of a Practical Calibration Procedure for a Clinical SPECT/MRI System Using a Single INSERT Prototype Detector and Multi-Mini Slit-Slat Collimator [PDF]

, 2018
In the context of the INSERT project, we have been developing a clinical SPECT insert for an MRI system, in order to perform simultaneous SPECT/MRI of the human brain.
Salvado, DSAS
core   +1 more source

Tumor dosimetry for I-131 trastuzumab therapy in a Her2+ NCI N87 xenograft mouse model using the Siemens SYMBIA E gamma camera with a pinhole collimator

, 2015
We performed imaging and therapy using I-131 trastuzumab and a pinhole collimator attached to a conventional gamma camera for human use in a mouse model.
Young Sub Lee, Jin Su Kim, Kyung Deuk Cho, J. Kang, Sang-Moo Lim   +4 more
semanticscholar   +1 more source

Modular and Automated Workflow for Streamlined Raman Signal Analysis

Journal of Raman Spectroscopy, Volume 57, Issue 2, Page 360-377, February 2026.
This study presents an automated workflow for preprocessing and analyzing Raman spectroscopy data, addressing key challenges such as noise suppression, baseline correction, and peak fitting using Voigt profiles. The method is validated on both synthetic and experimental spectra, demonstrating improved spectral fidelity and peak detection for biomedical
Mykyta Kizilov, Vsevolod Cheburkanov, Joseph Harrington, Vladislav V. Yakovlev   +3 more
wiley   +1 more source

Proton-counting radiography for proton therapy: a proof of principle using CMOS APS technology [PDF]

, 2014
Despite the early recognition of the potential of proton imaging to assist proton therapy (Cormack 1963 J. Appl. Phys. 34 2722), the modality is still removed from clinical practice, with various approaches in development. For proton-counting radiography
D J Parker, Esposito M, Evans P M, Ferrari A, G Poludniowski, Goethals P-E, J Nieto-Camero, Leroy C, M Esposito, N M Allinson, P M Evans, Paganetti H, Rinaldi I, S Green, S Manolopoulos, T Anaxagoras, T Price, Vlachoudis V, Yang M, Yohannes I   +19 more
core   +1 more source

Quad‐SPIM: A High‐Speed, Multi‐Color Light‐Sheet Microscope for 3D Imaging of Large Cleared Human Brain Tissues

Laser &Photonics Reviews, Volume 20, Issue 3, 5 February 2026.
A high‐speed, multi‐color light‐sheet microscope, named quad‐SPIM, enables rapid three dimensional (3D) imaging of large cleared human brain samples with simultaneous four‐channel acquisition. This custom‐built system achieves subcellular resolution across centimeter‐scale volumes, maintaining high image quality.
Laura Perego, Franco Cheli, Samuel Bradley, Danila Di Meo, Luca Giannoni, Josephine Ramazzotti, Federica Fenizi Caria, Giuseppe Sancataldo, Michele Sorelli, Giacomo Mazzamuto, Irene Costantini, Francesco Saverio Pavone   +11 more
wiley   +1 more source

Characterization of a ballistic supermirror neutron guide

, 2005
We describe the beam characteristics of the first ballistic supermirror neutron guide H113 that feeds the neutron user facility for particle physics PF1B of the Institute Laue-Langevin, Grenoble (ILL). At present, the neutron capture flux density of H113
A. Knöpfler, A. Petoukhov, Ageron, Al Usta, B. Märkisch, C. Schmidt, D. Dubbers, D. Mund, Dubbers, H. Abele, H. Häse, Häse, Høghøj, Itoh, Kreuz, M. Klein, M. Kreuz, M. Schumann, Maier-Leibnitz, Mezei, Mezei, Schanzer, Schmidt, Schärpf, T. Lauer, T. Soldner, V. Nesvizhevsky, Wagner   +27 more
core   +1 more source