2 K cryogenic system development for superconducting cavity testing of CiADS

Niu, Xiaofei; Feng, Bin; Wang, Xianjin; Zhang, Peng; Yang, Yongrong; Zhang, Junhui; Sun, Dan

doi:10.1016/j.cryogenics.2021.103247

Cited by 8 publications

(2 citation statements)

References 19 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…This Back-n beam provides the conditions needed to carry out the pinhole imaging of a spot of proton beam on the target by using back-streaming secondary neutrons. Construction is also underway based on a similar design philosophy at the ESS [15] and China initiative Accelerator Driven System (CiADS) [16] to deflect proton beamlines in front of a target.…”

Section: Idea and Geometrical Structurementioning

confidence: 99%

A novel methodological study for monitoring proton beam spot using back-streaming secondary neutrons from the high-power target

et al. 2022

View full text Add to dashboard Cite

The power of the proton beam of a high-power spallation neutron source generally ranges from 100 kW to several MW. The distribution of the power density of the beam on the target is critical for the stable operation of the high-power spallation target. This study proposes a beam monitoring method that involves restoring the image of a high-power proton beam spot on a target based on the principle of pinhole imaging by using the back-streaming of secondary neutrons from the spallation target. Fast and indirect imaging of the beam spot can be achieved at a distance of tens of meters from the target. The proposed method of beam monitoring can flexibly adjust the size of the pinhole and the measurement distance to control the intensity of flux of the secondary neutrons according to the demands of the detection system, which is far from the high-radiation target area. The results of simulations showed that the proposed method can be used to restore the beam spot of the incident proton by using the point response function and images of the secondary neutrons. Based on the target and the Back-n beamline in the CSNS, the effectiveness of this method has also been confirmed by means of Monte Carlo simulation.

show abstract

Section: Idea and Geometrical Structurementioning

confidence: 99%

A novel methodological study for monitoring proton beam spot using back-streaming secondary neutrons from the high-power target

et al. 2022

View full text Add to dashboard Cite

show abstract

“…Superconducting magnets have the advantages of smaller space occupied and higher magnetic field intensity, which can meet the increasingly tough requirements of accelerator magnets. So, they are widely applied by major accelerator research institutions [7][8][9]. As the superior performance of the superconducting magnet, the magnet and the supporting power supply are becoming a research hotspot in the field of heavy ion accelerators.…”

Section: Introductionmentioning

confidence: 99%

On a Novel Topology of Matrix Converter Applied to Accelerator DC Power Supply

2022

View full text Add to dashboard Cite

The current topology schemes of heavy ion accelerator power supply have serious pollution to the power grid caused by low power factor of the grid side. Considering the characteristics of adjustable power factor and bidirectional energy transfer of the matrix converter, the possibility of which applied to the accelerator DC power supply is studied and three kinds of backup topology schemes including the preceding regulated matrix rectifier (MR) are proposed in this article. Given the actual situation of accelerator power supply, research has been focused on the modulation strategy suitable for the topology of the preceding regulated MR and simulation validation. Based on simulation of the preceding regulated MR scheme, a matrix power prototype is developed. A power factor tester is utilized to test grid side power factor. According to the experimental results, it is prospectively feasible to apply the preceding regulated MR topology to accelerator DC power supply, with excellent performance of the grid side.

show abstract

Numerical study on a low mass flow rate cold compressor for 2 K helium cryogenic system

Sun

Shen

et al. 2023

Cryogenics

View full text Add to dashboard Cite

2 K cryogenic system development for superconducting cavity testing of CiADS

Cited by 8 publications

References 19 publications

A novel methodological study for monitoring proton beam spot using back-streaming secondary neutrons from the high-power target

A novel methodological study for monitoring proton beam spot using back-streaming secondary neutrons from the high-power target

On a Novel Topology of Matrix Converter Applied to Accelerator DC Power Supply

Numerical study on a low mass flow rate cold compressor for 2 K helium cryogenic system

Contact Info

Product

Resources

About