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1/9. IRIS Diffuser. V. Blackmore MICE Analysis Meeting: 24/08/10. IRIS: I ncredibly R edesigned I ntrinsic S catterer. 2/9. =. +. +. +. = Brass (or tungsten) diffuser ‘slice’. = Tufnol ring (Nylon 6/6 in model). G4MICE Model Makeup. 100mm. 162mm. 3/9. - PowerPoint PPT Presentation
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IRIS Diffuser
V. BlackmoreMICE Analysis Meeting:
24/08/10
IRIS: Incredibly Redesigned Intrinsic Scatterer
1/9
162mm
100mm
G4MICE Model Makeup
= + ++
= Tufnol ring (Nylon 6/6 in model)
= Brass (or tungsten) diffuser ‘slice’
Iris 1 Brass 2.972mm
Iris 2 Brass 5.944
Iris 3 Tungsten 2.8mm
Iris 4 Tungsten 5.6mm
2/9
Amplitude
Input: = 2.5mm, = 0.43, 1306mm Produces: = 9.2mm, = -0.12, 257mm
3/9
15mm Pb <AT> = 37.53, rms = 25.52
Px (or Py)
Input: = 2.5mm, = 0.43, 1306mm Produces: = 9.2mm, = -0.12, 257mm
4/9
15mm Pb <Px> = 0.24, rms = 27.54
x (or y)
Input: = 2.5mm, = 0.43, 1306mm Produces: = 9.2mm, = -0.12, 257mm
5/9
15mm Pb <x> = 0.33, rms = 39.95
Energy Loss
Input: = 2.5mm, = 0.43, 1306mm Produces: = 9.2mm, = -0.12, 257mm
6/9
15mm Pb <E> = 20.27, rms = 1.68
Energy Loss
Input: = 2.5mm, = 0.43, 1306mm Produces: = 9.2mm, = -0.12, 257mm
7/9
15mm Pb <E> = 20.27, rms = 1.68
(x, y)
Input: = 2.5mm, = 0.43, 1306mm Produces: = 9.2mm, = -0.12, 257mm
8/9
“Gap Effect”
5.6mm Tungsten
0.0
2.0
4.0
6.0
8.0
10.0
12.0
14.0
16.0
0 5 10 15 20 25
Gap size (mm)
% P
art
icle
s W
ith
in
E R
an
ge
dE<10
dE>15
dE<1
dE<0.1
dE>26
dE>24
2.8mm Tungsten
0.0
2.0
4.0
6.0
8.0
10.0
12.0
14.0
16.0
18.0
0 5 10 15 20 25
Gap size (mm)
% P
arti
cles
Wit
hin
E
R
ang
e
dE<5
dE>7.5
dE<1
dE<0.1
dE>13
dE>12
To be continued...
9/9
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