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Article
Performance improvement of BEPCII pulsed modulators
For improving a beam quality of the linear accelerator and decreasing the influence of failure recovery on the accelerator available time, a high-voltage pulse modulator system is required to enhance the stabi...
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Article
Stabilization of HEPS linac microwave system
The linac of the High Energy Photon Source has been commissioned. The low-level RF (LLRF) control system for the linac has been developed using MicroTCA.4-based technologies to maintain high stability of beam ...
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Article
Open AccessStretchable phosphorescent polymers by multiphase engineering
Stretchable phosphorescence materials potentially enable applications in diverse advanced fields in wearable electronics. However, achieving room-temperature phosphorescence materials simultaneously featuring ...
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Article
Open AccessAbnormal thermally-stimulated dynamic organic phosphorescence
Dynamic luminescence behavior by external stimuli, such as light, thermal field, electricity, mechanical force, etc., endows the materials with great promise in optoelectronic applications. Upon thermal stimul...
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Article
Waveguide distribution system of the HEPS linac
The High-Energy Photon Source (HEPS) is a 6 GeV storage ring-based light source under construction in Bei**g, China. Its accelerator consists of a 6 GeV storage ring, a full-energy booster, an S-band normal-c...
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Article
Open AccessOrganic phosphorescent scintillation from copolymers by X-ray irradiation
Scintillators that exhibit X-ray-excited luminescence have great potential in radiation detection, X-ray imaging, radiotherapy, and non-destructive testing. However, most reported scintillators are limited to ...
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Article
RF design and test of a high-directivity high-power waveguide directional coupler for the HEPS
A novel high-directivity high-power waveguide directional coupler (DC) working at 2998.8 MHz is developed for the High Energy Photon Source. It can help the phase control system to obtain a very accurate micro...
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Article
The design of HEPS global timing system
The high energy photon source (HEPS) is a 4th generation synchrotron light source under construction by the institute of high energy physics. The accelerator complex consists of a 500-MeV Linac, a full-energy ...
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Article
Radio-frequency design and commissioning of a flexible waveguide for high-vacuum S-band applications
Flexible waveguides, which allow for greater deformation as compared to traditional hard waveguides, are highly useful for simplifying waveguide system assemblies. However, the peak powers of these waveguides ...
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Article
Phase-stabilized RF transmission system based on LLRF controller and optical delay line
Radio frequency (RF) transmission systems with high-precision phase stability are required by the next generation of particle colliders and light sources. An RF transmission system was designed to meet this re...
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Article
Open AccessEnabling long-lived organic room temperature phosphorescence in polymers by subunit interlocking
Long-lived room temperature phosphorescence (LRTP) is an attractive optical phenomenon in organic electronics and photonics. Despite the rapid advance, it is still a formidable challenge to explore a universal...
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Article
Improved differential attack on 30-round SIMON64
In this paper we present an attack on 30-round SIMON64, which improves the best results on SIMON64 by 1 round. We use a 23-round differential characteristic which was proposed by Itai et al in 2015 to construct a...
