Results 31 to 40 of about 2,592,085 (298)

Photon-Counting Detector CT: Key Points Radiologists Should Know

Korean Journal of Radiology, 2022
Photon-counting detector (PCD) CT is a new CT technology utilizing a direct conversion X-ray detector, where incident X-ray photon energies are directly recorded as electronical signals.
Andrea Esquivel, A. Ferrero, A. Mileto, Francis I. Baffour, K. Horst, P. Rajiah, Akitoshi Inoue, S. Leng, C. McCollough, J. Fletcher   +9 more
semanticscholar   +1 more source

Superconducting nanowire single-photon detectors: physics and applications [PDF]

, 2012
Single-photon detectors based on superconducting nanowires (SSPDs or SNSPDs) have rapidly emerged as a highly promising photon-counting technology for infrared wavelengths.
Hadfield, Robert H, Natarajan, C.M., Natarajan, Chandra M, Tanner, M.G., Hadfield, R., Tanner, Michael Geoffrey; id_orcid   +5 more
core   +1 more source

Ultra-Fast Single-Photon Counting with Waveguide-Integrated Detectors for Quantum Technologies

, 2022
With recent advances in quantum technologies for applications such as communication, cryptography, computing, metrology and sensing, the performance and scalability of single-photon detection as a vital key component is becoming increasingly important ...
Perlot, Nicolas, Wahl, M., Bülter, A., Pernice, W.H.P., Ahangarianabhari, M., Schuck, C., Wolff, M.A., Wernicke, D., Beutel, F., Terhaar, R., Hartmann, W., Röhlicke, T., Häußler, M., Tillmann, M., Rödiger, Jasper, Walter, N.   +15 more
core   +1 more source

Three-Dimensional Digital Zooming of Integral Imaging under Photon-Starved Conditions

Sensors, 2023
In this paper, we propose new three-dimensional (3D) visualization of objects at long distance under photon-starved conditions. In conventional three-dimensional image visualization techniques, the visual quality of three-dimensional images may be ...
Gilsu Yeo, Myungjin Cho
doaj   +1 more source

Photon Counting Based on Solar-Blind Ultraviolet Intensified Complementary Metal-Oxide-Semiconductor (ICMOS) for Corona Detection

IEEE Photonics Journal, 2018
For the detection of weak signals, photon counting technology has attracted much attention. In this paper, a method based on photon counting is experimentally demonstrated to realize corona discharge detection at solar-blind ultraviolet (UV) wavelength ...
Yan Wang, Yunsheng Qian, Xiangyu Kong
doaj   +1 more source

An introduction to photon-counting detector CT (PCD CT) for radiologists

Japanese Journal of Radiology, 2022
The basic performance of photon-counting detector computed tomography (PCD CT) is superior to conventional CT (energy-integrating detector CT: EID CT) because its spatial- and contrast resolution of soft tissues is higher, and artifacts are reduced ...
Yuko Nakamura, T. Higaki, Shota Kondo, I. Kawashita, Isao Takahashi, K. Awai   +5 more
semanticscholar   +1 more source

Ge-on-Si single-photon avalanche diode detectors: design, modeling, fabrication, and characterization at wavelengths 1310 and 1550 nm [PDF]

, 2013
The design, modeling, fabrication, and characterization of single-photon avalanche diode detectors with an epitaxial Ge absorption region grown directly on Si are presented.
Lever, LJM, Paul, D.J., Buller, GS, Ikonic, Zoran, Warburton, Ryan E, Ikonic, Z, Myronov, Maksym, Knights, AP, Leadley, D. R. (David R.), Gallacher, Kevin, Kelsall, Robert W., Pilgrim, Neil J, Pilgrim, NJ, Paul, DJ, Myronov, M., Paul, Douglas J. (Professor of Semiconductor Devices), Allred, P, Intermite, G., Leadley, David R, Huante-Ceron, E, Kelsall, RW, Lever, Leon J M, Pilgrim, Neil J., Kelsall, R.W., Allred, P., Myronov, M, Huante-Ceron, Edgar, Lever, Leon J. M., Lever, L.J.M., Leadley, D.R., Knights, A.P., Knights, Andrew P., Allred, Phil, Ikonic, Z., Huante-Ceron, E., Warburton, RE, Knights, Andrew P, Pilgrim, N.J., Buller, G.S., Intermite, G, Paul, Douglas J, Warburton, Ryan E., Leadley, DR, Intermite, Giuseppe, Gallacher, K, Warburton, R.E., Buller, G. S. (Gerald S.), Kelsall, Robert W, Buller, Gerald Stuart   +48 more
core   +1 more source

Photon counting carbon dioxide gas sensing at 2.05 mu m wavelength

, 2023
We demonstrate proof-of-principle carbon dioxide (CO2) sensing at 2.05 mu m wavelength using a commercial infrared superconducting nanowire single photon detector (SNSPD).
MacKenzie, Ewan N.,, Zwiller, Val,, Staffas, Theodor,, Hadfield, Robert H.,   +3 more
core   +1 more source

Photon Counting Integral Imaging Using Compound Photon Counting Model and Adaptive Parametric Maximum Likelihood Estimator

IEEE Photonics Journal, 2017
In this paper, a statistical approach based on an adaptive parametric estimator is proposed for the three-dimensional (3-D) reconstruction of objects under photon-starved conditions.
Jiajia Qi, Guohua Gu, Weiji He, Qian Chen   +3 more
doaj   +1 more source

The Role of the Photon Counting Loss Effect in Time-Resolved Measurements of Fluorescence Anisotropy

Photonics, 2023
Determining the rate of rotation of molecules from their fluorescence anisotropy decay curves is a powerful method for studying molecular systems in biological applications.
Daniil A. Gvozdev, Alexey N. Semenov, Georgy V. Tsoraev, Eugene G. Maksimov   +3 more
doaj   +1 more source