User Tools

Site Tools


detectors

Differences

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

Link to this comparison view

Both sides previous revision Previous revision
Next revision Both sides next revision
detectors [2017/06/19 18:22]
pereira [Ionization chamber]
detectors [2018/02/15 12:44]
pereira [Cathode Readout Drift Chambers (CRDC)]
Line 27: Line 27:
  
 ===== Cathode Readout Drift Chambers (CRDC) ===== ===== Cathode Readout Drift Chambers (CRDC) =====
-Two Cathode Readout Drift Chamber (CRDC) are used  to measure the transversal positions and angles in  the [[Stations#​Focal Plane station|focal plane]]. The first detector (CRDC1) is located at the nominal optical focal plane, and it is separated 1 m from the second downstream detector (CRDC2). ​ Each detector has an active depth of 1.5 cm, an active area of 26 cm (non-dispersive direction) x 56 cm (dispersive direction), and [[Gas handling system|it is filled]] with a gas mixture consisting of 80% CF<​sub>​4</​sub>​ and 20% C<​sub>​4</​sub>​H<​sub>​10</​sub>​ at a typical pressure of 40 torr. The [[HV bias#​CRDCs|operating high power]] depends on the charge of the measured nuclei. A schematic view of a CRDC can be seen in the figure below.+Two Cathode Readout Drift Chamber (CRDC) are used  to measure the transversal positions and angles in  the [[Stations#​Focal Plane station|focal plane]]. The first detector (CRDC1) is located at the nominal optical focal plane, and it is separated 1 m from the second downstream detector (CRDC2). ​ Each detector has an active depth of 1.5 cm, an active area of 26 cm (non-dispersive direction) x 56 cm (dispersive direction), and [[Gas handling system|it is filled]] with a gas mixture consisting of 80% CF<​sub>​4</​sub>​ and 20% C<​sub>​4</​sub>​H<​sub>​10</​sub>​ at a typical pressure of 40 torr. The detector frame has a volume of 68 cm (dispersive) x 38 cm (non-dispersive) x 10.3 cm (depth). The [[HV bias#​CRDCs|operating high power]] depends on the charge of the measured nuclei. A schematic view of a CRDC can be seen in the figure below.
  
 {{:​wiki:​crdc-drawing.jpg?​600|Schematic view of the two S800 CRDCs.}} {{:​wiki:​crdc-drawing.jpg?​600|Schematic view of the two S800 CRDCs.}}
detectors.txt ยท Last modified: 2018/08/30 11:13 by pereira