Stephen
Brooks / RAL / May 2004
Decay Channel Parameters
0.5 [0.5,1]
D2+
0.5718 [0.5,1]
D1
Length
(m)
Drifts
0.15
[0.1,0.4]
S25+
0.15 [fixed]
Final
(S34)
±3.3
(alternating)
[-4,4]
S5-S24
0.4
[0.2,0.6]
0.3
[0.1,0.4]
−3.3, 4, −3.3
[-5,5]
S2-4
0.4066
[0.2,0.45]
0.1 [fixed]
20
[0,20]
S1
Length
(m)
Radius
(m)
Field
(T)
Solenoids
•12 parameters
–Solenoids alternated in field
strength and narrowed according to a pattern
•137 parameters
–Varied everything individually
0.1 [0,0.5]
Angle
(radians)
0.01 [fixed]
Radius
(m)
0.2 [fixed]
Length
(m)
0.2033
(S1 centred) [0,0.45]
Z
displacement (m) from S1
start
Tantalum Rod
Original
parameters / Optimisation ranges