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group_secar2.0 [2018/09/13 14:29] plastun |
group_secar2.0 [2018/09/13 14:51] plastun |
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===== DAY4===== | ===== DAY4===== | ||
==== Optics misalignments ==== | ==== Optics misalignments ==== | ||
+ | |||
+ | **Beam position. Longitudinal offset.** | ||
We populated " | We populated " | ||
- | LOOP PHI 0.0 360 5;\\ | + | '' |
SRXX:= XX*COS(PHI*3.14159/ | SRXX:= XX*COS(PHI*3.14159/ | ||
SRAX:= AX*SIN(PHI*3.14159/ | SRAX:= AX*SIN(PHI*3.14159/ | ||
- | ENDLOOP;\\ | + | ENDLOOP;'' |
+ | |||
+ | Rays in another planes are on-axis: | ||
+ | |||
+ | '' | ||
+ | SRAY:= 0.0; | ||
+ | SRDE:= 0.0;'' | ||
+ | |||
+ | Created loop for target position. Observed piece-wise curve for resolution vs target offset (meters) (see figure below) in case of 4th order calculation. If order reduced to the 1st, than curve is smooth, but maximum resolution is shifted. | ||
+ | {{ : | ||
+ | The resolution drops by 5% at the offsets (-5 mm, +7 mm).\\ | ||
+ | |||
+ | **Beam position. Transverse offset.** | ||
+ | {{ : | ||
+ | The resolution drops by 5% at the offsets (-0.8 mm, +0.5 mm).\\ | ||
- | Number of ray in another planes is set to one. | ||
- | Created loop for target position. Observed piece-wise curve for resolution vs target offset (see figure below) in case of 4th order calculation. If order reduced to the 1st, than curve is smooth, but maximum resolution is shifted. | ||
- | {{ : |