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modes_of_operation [2016/01/19 12:35]
pereira [Dispersion-matching Mode]
modes_of_operation [2017/03/03 20:41] (current)
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 [[Introduction#​Analysis line|analysis line]] achromatic ​with a maximum dispersion ​value 1.5 cm/% reached at the intermediate image plane (see figure below). In this mode the coordinates of the fragment at the [[Introduction#​Spectrograph|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#​Analysis line|analysis line]] achromatic. The maximum dispersion ​(angular) of ~50 mrad/% is reached at the intermediate image plane (see figure below). In this mode the coordinates of the fragment at the [[Introduction#​Spectrograph|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. ​
  
  
modes_of_operation.1453224909.txt.gz · Last modified: 2016/01/19 12:35 by pereira