Results 71 to 80 of about 738,419 (256)

Simple solutions for spectroscopic, photon counting X-ray imaging detectors

, 2022
S.1636-1639The central idea of our approach is to use standard imaging sensors for industrial optical imaging as X-ray sensors. We use them as a simple solution for a spectroscopic, single photon counting X-ray detector with a reduction of the pixel size
Hofmann, T., Firsching, M., Hanke, R., Nachtrab, F., Uhlmann, N.   +4 more
core   +1 more source

Emerging Post‐CMOS Hardware Neurons for Brain‐Inspired Computing: Devices, Circuits, and System Integration

Advanced Functional Materials, EarlyView.
The physical realization of artificial neurons is a critical challenge for energy‐efficient neuromorphic computing. This review presents a comprehensive analysis of the evolution of artificial neuron implementations from conventional CMOS to emerging post‐CMOS technologies.
Kannan Udaya Mohanan, Hocheon Yoo, Benoît H. Lessard, Ioannis Kymissis, Chang‐Hyun Kim   +4 more
wiley   +1 more source

Nondestructive photon counting in waveguide QED

Physical Review Research, 2020
Number-resolving single-photon detectors represent a key technology for a host of quantum optics protocols, but despite significant efforts, state-of-the-art devices are limited to few photons.
Daniel Malz, J. Ignacio Cirac
doaj   +1 more source

Pressure‐Assisted Dimensional Transformation of 2D Hydrogenated Borophene into 0D Boron Quantum Dots

Advanced Functional Materials, EarlyView.
Hydrogenated borophene (HB) is transformed into distinct boron nanostructures through a solvent‐free thermal process. Under flowing nitrogen, hydrogen escape promotes reconstruction into B2O3 nanoplatelets, whereas hydrogen‐induced pressure under sealed conditions facilitates fragmentation into boron quantum dots.
Ozden Gunes Yildiz, Ramin Yazdaanpanah, Yongfeng Guo, Pouriya Naziri, Sachin Kulkarni, Martina Mercurio, Maria Cristina Larciprete, Ilaria Fratoddi, Paul Simon, Wan‐Lu Li, Koray Aydin, Umut Aydemir   +11 more
wiley   +1 more source

Multi-calorimetry in light-based neutrino detectors

Journal of High Energy Physics
Neutrino detectors are among the largest photon detection instruments, built to capture scarce photons upon energy deposition. Many discoveries in neutrino physics, including the neutrino itself, are inseparable from the advances in photon detection ...
Anatael Cabrera, Yang Han, Steven Calvez, Emmanuel Chauveau, Hanyi Chen, Hervé de Kerret, Stefano Dusini, Marco Grassi, Leonard Imbert, Jiajun Li, Roberto Carlos Mandujano, Diana Navas-Nicolás, Hiroshi Nunokawa, Michel Obolensky, Juan Pedro Ochoa-Ricoux, Guillaume Pronost, Benoit Viaud, Frédéric Yermia   +17 more
doaj   +1 more source

High‐Efficiency Deep Blue Single‐Gaussian Europium(II) Emitters and Their Emitter‐Host Interactions

Advanced Functional Materials, EarlyView.
Crown‐ether ligands and carborate anions enable vacuum‐processable Eu(II) emitters with efficient single‐Gaussian deep‐blue luminescence. Combined photophysical and computational analyses reveal that excited‐electron confinement and steric shielding of the europium center jointly govern compatibility with OLED host materials, establishing molecular ...
Mahmoud Soleimani, Paulius Imbrasas, Jan‐Michael Mewes, Felix Kaden, Stephanie Anna Buchholtz, Karl Leo, Sebastian Schellhammer, Carsten Rothe, Sebastian Reineke   +8 more
wiley   +1 more source

Advances in application of photon-counting CT for pancreatic imaging [PDF]

Zhenduanxue lilun yu shijian
Photon-counting computed tomography (PCCT) is an advanced CT imaging technology based on novel photon-counting detectors. Compared to traditional energy-integrating detector CT (EID-CT), PCCT demonstrates significant advantages in radiation dose ...
HUANG Ruikun, YANG Yanzhao, CHAI Weimin
doaj   +1 more source

Compact-eight channel photon counting module with monolithic array detector

, 2007
We present a multichannel photon counting module that exploits a monolithic array of single-photon avalanche diodes (SPADs). The detector array consists of eight 50μm diameter SPADs featuring low dark counting rate and high photon detection efficiency ...
MARANGONI, STEFANO, RECH, IVAN, M. Ghioni, COVA, SERGIO, D. Resnati, S. Marangoni, RESNATI, DANIELE, GHIONI, MASSIMO ANTONIO, S. Cova, I. Rech   +9 more
core   +1 more source

Photo‐Switchable Molecular Module Programming PET Biodegradation in Aquatic Environments

Advanced Functional Materials, EarlyView.
We address the plastic durability paradox by integrating an itaconic acid–derived pyrrolidone module into polymer backbones. Sunlight in water triggers Norrish Type I ring‐opening and hydrophilization, enabling rapid biodegradation into nontoxic minerals.
Mohammad Asif Ali, Jixin Zheng, Satoshi Wakai, Jie Liu, Hidetaka Nomaki, Misato Tsukatani, Noriyuki Isobe, Jingcheng Sang, Yuriko Aoki, Hideo Okamura, Daisuke Sasaki, Chiaki Ogino, Yuzo Yamazaki, Takashi Nishikaze, Kenji Takada, Maiko K. Okajima, Tatsuo Kaneko   +16 more
wiley   +1 more source

X-ray imaging detectors for synchrotron and XFEL sources

IUCrJ, 2015
Current trends for X-ray imaging detectors based on hybrid and monolithic detector technologies are reviewed. Hybrid detectors with photon-counting pixels have proven to be very powerful tools at synchrotrons.
Takaki Hatsui, Heinz Graafsma
doaj   +1 more source