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tripleg_group [2018/09/14 01:13] gastis |
tripleg_group [2018/09/14 09:32] gao |
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**Q3.** | **Q3.** | ||
We use the example from the wiki [[https:// | We use the example from the wiki [[https:// | ||
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1, Find the lines as shown in the picture below: | 1, Find the lines as shown in the picture below: | ||
{{: | {{: | ||
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In the picture above, each of the commands (DL, DP, MQ ...) represents an ion optics element. (For a complete reference of the commands used in the cosy script, one has to refer to the manual). Here in the step 3 of [[https:// | In the picture above, each of the commands (DL, DP, MQ ...) represents an ion optics element. (For a complete reference of the commands used in the cosy script, one has to refer to the manual). Here in the step 3 of [[https:// | ||
radius and a drift. So we modify this part of the script as shown in the picture below: | radius and a drift. So we modify this part of the script as shown in the picture below: | ||
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**Q4.** | **Q4.** | ||
- | In step 4, we calculate the reaction kinematics for the 15O(a, | + | In step 4, we calculate the reaction kinematics for the 15O(a, |
{{ : | {{ : | ||
- | The energy spread in this case is about +-2% (maximum energy acceptance of SECAR: +-3.1%), and the angular spread is ~ +-10mrad (maximum angular acceptance of SECAR: +- 25mrad). At this energy the reaction products fit in our system without any problem. | + | The energy spread in this case is about +-2% (maximum energy acceptance of SECAR: +-3.1%), and the angular spread is ~ +-10mrad (maximum angular acceptance of SECAR: +- 25mrad). At this energy the reaction products fit in our system without any problem. |
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+ | The maximum | ||
+ | For reaching the maximum angular acceptance we need energies above 20MeV/u. | ||
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+ | * all energies are in the lab system. | ||
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+ | {{ : | ||
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