GEM Detector Specifications

The specifications for the GEM detector banks are as follows....

Bank

 Mean angle
2 theta

Min Angle

Max Angle

L2

Resolution DQ/Q

0

1.1°

 3.2°

2.8-2.9m*

5 - 10%*

1

 9°

5.6°

 12.5°

2.2 - 2.4m

4.7%

2

 17°

13.8°

 21.0°

1.48 - 2.10m

2.4%

3

 34°

24.8°

 45.0°

0.65 - 1.40m*

1.7 - 2%*

4

 62°

49.9°

 74.9°

1.03 - 1.44m

0.79%

5

 92°

79.0°

 104.0°

1.38m

0.51%

5X 109° 105.5° 113.5° 1.38m 0.51%

6

 146°

141.9°

 149.2°

1.54 - 1.74m

0.34%

7

 159°

149.3°

 169.3°

1.04 - 1.39m

0.35%

* = Design value

Last updated on 23 Jul 2004 by Alex Hannon (a.c.hannon@rl.ac.uk)