HUSTRING, a local area network named after the Harbin University of Science and Technology, uses a combination of token-passing approach and register insertion technology as its medium access control mechanism. The re...HUSTRING, a local area network named after the Harbin University of Science and Technology, uses a combination of token-passing approach and register insertion technology as its medium access control mechanism. The results of theoretical analysis and computer simulation indicate that the real-time performance of the HUSTRING is much better than that of the well-known token-ring local area network.The network topology of the HUSTRING, the architecture of its physical layer, medium access layer and logic link layer and the configuration of its ring interface are describedand its performance is compared with the token ring local area network.展开更多
HFRS(HIAF FRagment Separator) will be the radioactive secondary beam separation line on High-Intensity heavy-ion Accelerator Facility(HIAF) in China. Several TPC detectors, with high count rates, are planned for parti...HFRS(HIAF FRagment Separator) will be the radioactive secondary beam separation line on High-Intensity heavy-ion Accelerator Facility(HIAF) in China. Several TPC detectors, with high count rates, are planned for particle identification and beam monitoring at HFRS. This paper presents an event-driven internal memory and synchronous readout(EDIMS)prototype ASIC chip. The aim is to provide HFRS-TPC with high-precision time and charge measurements with high count rates and a large dynamic range. The first prototype EDIMS chip integrated 16 channels and is fabricated using a 0.18-μm CMOS process. Each channel consists of a charge-sensitive amplifier, fast shaper, slow shaper, peak detect-and-hold circuit, discriminator with time-walk compensation, analog memory, and FIFO. The token ring is used for clock-synchronous readout. The chip is taped and tested.展开更多
文摘HUSTRING, a local area network named after the Harbin University of Science and Technology, uses a combination of token-passing approach and register insertion technology as its medium access control mechanism. The results of theoretical analysis and computer simulation indicate that the real-time performance of the HUSTRING is much better than that of the well-known token-ring local area network.The network topology of the HUSTRING, the architecture of its physical layer, medium access layer and logic link layer and the configuration of its ring interface are describedand its performance is compared with the token ring local area network.
基金supported by the National Natural Science Foundation of China (Nos. 11975293 and 12105338)the Strategic Priority Research Program of Chinese Academy of Science (Nos. XDB 34040200 and XPB 23)the Technology Innovation Project of Instrument and Equipment Function Development of Chinese Academy of Sciences (No. 2023g102)。
文摘HFRS(HIAF FRagment Separator) will be the radioactive secondary beam separation line on High-Intensity heavy-ion Accelerator Facility(HIAF) in China. Several TPC detectors, with high count rates, are planned for particle identification and beam monitoring at HFRS. This paper presents an event-driven internal memory and synchronous readout(EDIMS)prototype ASIC chip. The aim is to provide HFRS-TPC with high-precision time and charge measurements with high count rates and a large dynamic range. The first prototype EDIMS chip integrated 16 channels and is fabricated using a 0.18-μm CMOS process. Each channel consists of a charge-sensitive amplifier, fast shaper, slow shaper, peak detect-and-hold circuit, discriminator with time-walk compensation, analog memory, and FIFO. The token ring is used for clock-synchronous readout. The chip is taped and tested.
