Results 81 to 90 of about 9,194 (219)
A Masked Photocathode in a Photoinjector
, 2011 In this paper, we propose a masked photocathode inside a photoinjector for generating high brightness electron beam. Instead of mounting the photocathode onto an electrode, an electrode with small hole is used as a mask to shield the photocathode from the accelerating vacuum chamber.
openaire +3 more sources
Advanced Energy Materials, Volume 16, Issue 37, 7 October 2026.Surface‐engineering Ti3C2Tx MXenes with an in situ‐grown TiO2 layer on the surface in combination with visible‐light‐absorbing Cu2O significantly enhances charge separation and carrier extraction while improving Cu2O resistance to photocorrosion. The resulting Cu2O/TiO2‐MXene photocathodes enable highly selective, solar‐driven ethanol production ...
Luis A. M. Carrascosa +4 more
wiley +1 more source
Photocathode drive laser for SwissFEL
, 2010 For high brigthness photocathode RF gun, high quality laser pulses must be used to generate the photocurrent. Transverse uniformity and longitudinal laser flat top profile are predicted to improve the electron beam brightness.
Vicario, C. (author) +7 more
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Ultraviolet laser transverse profile shaping for improving x-ray free electron laser performance
Physical Review Accelerators and Beams, 2017 The photocathode rf gun is one of the most critical components in x-ray free electron lasers. The drive laser strikes the photocathode surface, which emits electrons with properties that depend on the shape of the drive laser.
S. Li +10 more
doaj +1 more source
Photocathodes and Photoemission
The Journal of the Institute of Television Engineers of Japan, 1972 光電子放出は, イメージオルシコン, 光電管などの光電面として応用されている.現在, アルカリアンチモン系の光電面が広く用いられているが, 最近, III-V族化合物半導体を材料とした高感度の光電面の研究が多くあり, これらについて述べた.また, 超高真空における光電子放出を利用して固体内部の電子状態, とくにバンド構造を詳細に調べる方法とともに, 最近の研究結果について解説を行なった.
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Advanced Intelligent Discovery, Volume 2, Issue 5, October 2026.This study introduces FIRE‐GNN, a force‐informed, relaxed equivariant graph neural network for predicting surface work functions and cleavage energies from slab structures. By incorporating surface‐normal symmetry breaking and machine learning interatomic potential‐derived force information, the approach achieves state‐of‐the‐art accuracy and enables ...
Circe Hsu +5 more
wiley +1 more source
Improvement methods of reflective photocathode QE of X-ray frame camera
, 2011 Time-resolved diagnosis of the transient process using X-ray frame cameras (XRCs) is an important means in inertial confinement fusion (ICF) experiments. The sensitivity of the photocathode is a key parameter of the entire camera system. This letter aims
LiuBaiyu +10 more
core
Small Methods, Volume 10, Issue 19, 7 October 2026.For the observation of micromechanical devices, a fast imaging technique with high temporal resolution is needed. Here, we demonstrate that a standard scanning electron microscope can be converted into a time‐resolving instrument using a fast detector and a time‐to‐digital converter.
Joel Rehmann +4 more
wiley +1 more source
Green Processing and SynthesisThis research focuses on converting Red Sea seawater into environmentally friendly hydrogen (H2) gas by developing an innovative photocathode termed MoS3–MoO3/PA2MB.
Aldosari Eman +4 more
doaj +1 more source