Study on the Output from Programs in Calculating Lattice with Tranverse Coupling

Xu Jianming

Chinese Physics C> 1994, Vol. 18> Issue(10) : 955-960

Study on the Output from Programs in Calculating Lattice with Tranverse Coupling

Xu Jianming ^,

Institute of High Energy Physics,Acadamia Sinca,Beijing 100039

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Abstract：
SYNCH and MAD outputs in calculating lattice with coordinate rotation have been studied in this paper.The result shows that the four dispersion functions(ηx,ηx',ηy,and ηy')given by SYNCH output in this case are wrong.There are large discrepancies between the Twiss Parameters(βx,αx,βy and αy) given by these two programs.One has to be careful in using these programs to calculate or match lattices with coordinate rotations(coupling between two transverse motions) so that to avoid wrong results.
References

[1] Jianming Xu,BNLBooster-192,1991.[2]Jianming Xu,BNL-48478,AD/RHIC-117,1992.[3]K.L.Brown,SLAC-75,1972.[4]E.Courant,私人通讯，1993

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Xu Jianming. Study on the Output from Programs in Calculating Lattice with Tranverse Coupling[J]. Chinese Physics C, 1994, 18(10): 955-960.

Xu Jianming. Study on the Output from Programs in Calculating Lattice with Tranverse Coupling[J]. Chinese Physics C, 1994, 18(10): 955-960. shu

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

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沈阳化工大学材料科学与工程学院沈阳 110142

Study on the Output from Programs in Calculating Lattice with Tranverse Coupling

Xu Jianming ^,

Corresponding author: Xu Jianming,

Institute of High Energy Physics,Acadamia Sinca,Beijing 100039

Received Date: 1900-01-01
Accepted Date: 1900-01-01
Available Online: 1994-10-05

Abstract: SYNCH and MAD outputs in calculating lattice with coordinate rotation have been studied in this paper.The result shows that the four dispersion functions(ηx,ηx',ηy,and ηy')given by SYNCH output in this case are wrong.There are large discrepancies between the Twiss Parameters(βx,αx,βy and αy) given by these two programs.One has to be careful in using these programs to calculate or match lattices with coordinate rotations(coupling between two transverse motions) so that to avoid wrong results.