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modes_of_operation [2013/12/23 16:41] pereira [Dispersion-matching Mode] |
modes_of_operation [2013/12/24 09:05] pereira [Focus Mode] |
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===== Focus Mode ===== | ===== Focus Mode ===== | ||
- | In the focus mode, the maximum momentum acceptance is achieved (±2%) by making the analysis line achromatic with a maximum dispersion value 1.5 cm/% reached at the intermediate image plane (see [[Fig. xxx]]). In this mode the coordinates of the fragment at the spectrograph focal plane are sensitive to the momentum of the beam impinging on the target. The momentum of each particle beam must then be tracked, significantly limiting the resolution at the focal plane to about 1 part in 1000 in energy. | + | In the focus mode, the maximum momentum acceptance is achieved (±2%) by making the [[Introduction# |
===== Dispersion-matching Mode ===== | ===== Dispersion-matching Mode ===== | ||
In the dispersion-matching mode the whole system ([[Introduction# | In the dispersion-matching mode the whole system ([[Introduction# | ||
- | Please, be aware that in this configuration, | + | Please, be aware that in this configuration, |
===== Monochromatic Mode ===== | ===== Monochromatic Mode ===== | ||
__The monochromatic mode is still in development stage__. The motivation is the production of low-energy (5-10 MeV) secondary beams from a high-energy fragmentation beam. The implementation of this mode requires the use of a mono-energetic wedged installed in the intermediate image station. The wedge profile must be built on a case-by-case basis, considering the specific energy and nuclei in the experiment. | __The monochromatic mode is still in development stage__. The motivation is the production of low-energy (5-10 MeV) secondary beams from a high-energy fragmentation beam. The implementation of this mode requires the use of a mono-energetic wedged installed in the intermediate image station. The wedge profile must be built on a case-by-case basis, considering the specific energy and nuclei in the experiment. | ||