Differences

This shows you the differences between two versions of the page.

--- group_secar2.0 [2018/09/13 16:03]
plastun
+++ group_secar2.0 [2018/09/13 16:17]
plastun
@@ Line 122: / Line 122: @@
 {{ :transv.png?450 |}}
 The resolution drops by 5% at the beam offsets (-0.8 mm, +0.5 mm). The offset is of the beam half-size order. \\
+**Beam size.**\\
+Resolution reasonably drops with larger beam size.
+{{ :beam_size.png?400 |}}
 **Dipole 4 position. Transvers offset**\\
@@ Line 128: / Line 132: @@
 **Dipole 4 position. Longitudinal offset**\\
 {{:longitudinal_shift_b4.jpg?450|}}\\
+|Element|Variable |Range of ±5%|
+|Beam|transverse|-5..+7 mm|
+|Beam|longitudinal|-0.8..+0.5 mm|
+|Beam|size|-x..+x|
+|B4|transverse|-4..+1 mm|
+|B4|longitudinal-10..+55 mm|
 ==== Recoil tracking in SECAR ====
@@ Line 148: / Line 159: @@
 ** ±1 charge state **\\
+Added extra rays:
+<code>
+{Define special rays for different charge states}
+SR 0 -AX 0 0 0 0.0 0 1/14 2;
+SR 0 0 0 0 0 0.0 0  1/14 2;
+SR 0 AX 0 0 0 0.0 0 1/14 2;
+SR 0 -AX 0 0 0 0.0 0 -1/14 3;
+SR 0 0 0 0 0 0.0 0 -1/14 3;
+SR 0 AX 0 0 0 0.0 0 -1/14 3;
+{Beam 45V14+}
+SR 0 -AX 0 0 0 3/132 -1/46 0/14 5;
+SR 0 0 0 0 0 3/132 -1/46 0/14 5;
+SR 0 AX 0 0 0 3/132 -1/46 0/14 5;
+</code>
+{{ :different_beams.png?400 |}}
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JINA-CEE ION OPTICS SUMMER SCHOOL: JIOSS 2018