EXPERIMENT ON THE LOSS IMPEDANCE IN AN ELECTRON STORAGE PING

PEI Yuan-Ji; SHEN Xiao-Feng; XU Jian-Ming

Chinese Physics C> 1988, Vol. 12> Issue(2) : 214-220

EXPERIMENT ON THE LOSS IMPEDANCE IN AN ELECTRON STORAGE PING

University of Science and Technology of China,Hefei1 Institute of High Energy Physics,Academia Sinica,Beijing

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Abstract：
The principle for measuring the loss impedance of a storage ring,which is caused by the energy loss of the stored bunched beam in passing through discontinuous parts of the vacuum chamber of the ring,is discussed and the set up to measure the loss impedance of HESYRL storage ring is described.
The measurement results of the energy loss and loss impedance of the dicker vacuum chamber,the septum vacuum chamber and other parts to be installed on the HESYRL storage ring are given.Some of the results are consistent with those measured in DESY.

References

[1]

M. Sands, "Energy Loss to Parasitic Modes of the Accelerating cavities", PEP-90 (July 25, 1974).[2] M. Sands and J. Rees, "A Bench Measurement of the Energy Loss of a Stored Beam to a Cavity", PEP-95(August 1974).[3] J. Peters, "Bench Measurements of the Energy Loss of a Stored Beam to Vacuum Components", IEEE Trans.,Vol. NS-24, No. 3, (June 1977).[4] P. B. Wilson, J. B. Styles and K. L. F. Bane, "Comparison of Measured and Computed Loss to ParasiticModes in Cylindrical Cavities with Beam Ports", PEP-240 (March 1977).[5] M. G. Billing, J . L. Kirchgessner and R. M. Sundelin, "Simulation Measurement of Bunch Excited Fieldsand Energy Loss in Vacuum Chamber Components and Cavities", IEEE Trans., Vol. NS-26, No. 3 (June1979).[6] J. W. Wang, G. A. Loew, J. N. Weaver and P. B. Wilson, "Microwave Measurements of Energy Loss toLongitudinal Modes by Single Electron Bunches Traversing Periodic Structures", SLAC-PUB-2830 (October1981).[7] J. N. Weaver, "Measuring, Calculating and Estimating PEP'S Parasitic Mode Loss Parameters", PEP-NOTE-342 (January 1981).

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PEI Yuan-Ji, SHEN Xiao-Feng and XU Jian-Ming. EXPERIMENT ON THE LOSS IMPEDANCE IN AN ELECTRON STORAGE PING[J]. Chinese Physics C, 1988, 12(2): 214-220.

PEI Yuan-Ji, SHEN Xiao-Feng and XU Jian-Ming. EXPERIMENT ON THE LOSS IMPEDANCE IN AN ELECTRON STORAGE PING[J]. Chinese Physics C, 1988, 12(2): 214-220. shu

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Received: 1900-01-01
Revised: 1900-01-01

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1.
沈阳化工大学材料科学与工程学院沈阳 110142

EXPERIMENT ON THE LOSS IMPEDANCE IN AN ELECTRON STORAGE PING

Corresponding author: PEI Yuan-Ji,

University of Science and Technology of China,Hefei1 Institute of High Energy Physics,Academia Sinica,Beijing

Received Date: 1900-01-01
Accepted Date: 1900-01-01
Available Online: 1988-04-05

Abstract: The principle for measuring the loss impedance of a storage ring,which is caused by the energy loss of the stored bunched beam in passing through discontinuous parts of the vacuum chamber of the ring,is discussed and the set up to measure the loss impedance of HESYRL storage ring is described.
The measurement results of the energy loss and loss impedance of the dicker vacuum chamber,the septum vacuum chamber and other parts to be installed on the HESYRL storage ring are given.Some of the results are consistent with those measured in DESY.