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No.	： 915
Title	： problems with solenoid?
Date	： 2019/01/10(Thu) 15:10:44
Name	： K.Kubo
URL	：

I have two problems with solenoid (SOL)

Problem 1:
Beam line length of accelerating structure (CAVI) in Solenoid (SOL) becomes zero.
e.g.
!!!!!
SOL SOL1=(BOUND=1 BZ=0 GEO=1) SOL2=(BOUND=1 BZ=0);
MARK I1=() I2=();
CAVI CA1=(L=2.0 VOLT=0 FREQ=1.3e9 PHI=-1.570796);
LINE LN1=(I1 SOL1 CA1 SOL2 I2);
FFS USE=LN1;
trpt; ins; cal;
Print[LINE["S","*"]];
!!!!!
gives
"{0,0,0,0,0,0}"
(orbit length is zero)
!!!!!!!!

Problem 2:
Geometry of design orbit (given by "GEO") seems incorrect downstream of solenoid (SOL).
e.g.
!!!!!!
SOL SOL1=(BOUND=1 BZ=0 GEO=1) SOL2=(BOUND=1 BZ=0);
MARK I1=() I2=();
DRIFT L1=(L=2.0);
BEND B1=(L=0 ANGLE=1.5707963267948966);
BEND B2=(L=0 ANGLE=1.5707963267948966 ROTATE=90 DEG);
LINE LN1=(I1 B2 SOL1 L1 SOL2 B1 L1 I2);
LINE LN2=(I1 B2 L1 B1 L1 I2);
FFS USE=LN1;
trpt; ins; cal;
geo1=LINE["GEO","I2"];
USE LN2;
trpt; ins; cal;
geo2=LINE["GEO","I2"];
Print[geo1];
Print[geo2];
!!!!!!!
gives
Print[geo1];
{{-1.4142135623730947,1.4142135623730951,-2},{2.356194490192345,-6.123031769111886e-17,-1.5707963267948966}}
Print[geo2];
{{0,2,-2},{1.5707963267948968,0,-1.5707963267948966}}
!!!!!!!
Do I misunderstand something?
Is the SAD version (SAD Ver.1.0.10.5.3a10 built at 2012-01-30 16:19:56) too old?

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problems with solenoid?

K.Kubo

No.915

Re: problems with solenoid? - Akio Morita 19/01/10-20:28 No.917
Re: problems with solenoid? - Akio Morita 19/01/10-20:35 No.918
Re: problems with solenoid? - Akio Morita 19/01/10-21:06 No.919
Re: problems with solenoid? - Akio Morita 19/01/11-12:10 No.920
- Re^2: problems with solenoid? - K.Kubo 19/01/11-13:21 No.921
  - Re^3: problems with solenoid? - Akio Morita 19/01/11-13:39 No.922
  - Re^3: problems with solenoid? - Akio Morita 19/01/11-13:46 No.923

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> I have two problems with solenoid (SOL) > > Problem 1: > Beam line length of accelerating structure (CAVI) in Solenoid (SOL) becomes zero. > e.g. > !!!!! > SOL SOL1=(BOUND=1 BZ=0 GEO=1) SOL2=(BOUND=1 BZ=0); > MARK I1=() I2=(); > CAVI CA1=(L=2.0 VOLT=0 FREQ=1.3e9 PHI=-1.570796); > LINE LN1=(I1 SOL1 CA1 SOL2 I2); > FFS USE=LN1; > trpt; ins; cal; > Print[LINE["S","*"]]; > !!!!! > gives > "{0,0,0,0,0,0}" > (orbit length is zero) > !!!!!!!! > > Problem 2: > Geometry of design orbit (given by "GEO") seems incorrect downstream of solenoid (SOL). > e.g. > !!!!!! > SOL SOL1=(BOUND=1 BZ=0 GEO=1) SOL2=(BOUND=1 BZ=0); > MARK I1=() I2=(); > DRIFT L1=(L=2.0); > BEND B1=(L=0 ANGLE=1.5707963267948966); > BEND B2=(L=0 ANGLE=1.5707963267948966 ROTATE=90 DEG); > LINE LN1=(I1 B2 SOL1 L1 SOL2 B1 L1 I2); > LINE LN2=(I1 B2 L1 B1 L1 I2); > FFS USE=LN1; > trpt; ins; cal; > geo1=LINE["GEO","I2"]; > USE LN2; > trpt; ins; cal; > geo2=LINE["GEO","I2"]; > Print[geo1]; > Print[geo2]; > !!!!!!! > gives > Print[geo1]; > {{-1.4142135623730947,1.4142135623730951,-2},{2.356194490192345,-6.123031769111886e-17,-1.5707963267948966}} > Print[geo2]; > {{0,2,-2},{1.5707963267948968,0,-1.5707963267948966}} > !!!!!!! > Do I misunderstand something? > Is the SAD version (SAD Ver.1.0.10.5.3a10 built at 2012-01-30 16:19:56) too old?
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Message > I have two problems with solenoid (SOL) > > Problem 1: > Beam line length of accelerating structure (CAVI) in Solenoid (SOL) becomes zero. > e.g. > !!!!! > SOL SOL1=(BOUND=1 BZ=0 GEO=1) SOL2=(BOUND=1 BZ=0); > MARK I1=() I2=(); > CAVI CA1=(L=2.0 VOLT=0 FREQ=1.3e9 PHI=-1.570796); > LINE LN1=(I1 SOL1 CA1 SOL2 I2); > FFS USE=LN1; > trpt; ins; cal; > Print[LINE["S","*"]]; > !!!!! > gives > "{0,0,0,0,0,0}" > (orbit length is zero) > !!!!!!!! > > Problem 2: > Geometry of design orbit (given by "GEO") seems incorrect downstream of solenoid (SOL). > e.g. > !!!!!! > SOL SOL1=(BOUND=1 BZ=0 GEO=1) SOL2=(BOUND=1 BZ=0); > MARK I1=() I2=(); > DRIFT L1=(L=2.0); > BEND B1=(L=0 ANGLE=1.5707963267948966); > BEND B2=(L=0 ANGLE=1.5707963267948966 ROTATE=90 DEG); > LINE LN1=(I1 B2 SOL1 L1 SOL2 B1 L1 I2); > LINE LN2=(I1 B2 L1 B1 L1 I2); > FFS USE=LN1; > trpt; ins; cal; > geo1=LINE["GEO","I2"]; > USE LN2; > trpt; ins; cal; > geo2=LINE["GEO","I2"]; > Print[geo1]; > Print[geo2]; > !!!!!!! > gives > Print[geo1]; > {{-1.4142135623730947,1.4142135623730951,-2},{2.356194490192345,-6.123031769111886e-17,-1.5707963267948966}} > Print[geo2]; > {{0,2,-2},{1.5707963267948968,0,-1.5707963267948966}} > !!!!!!! > Do I misunderstand something? > Is the SAD version (SAD Ver.1.0.10.5.3a10 built at 2012-01-30 16:19:56) too old?
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