Download - Meshed with no iron for comparison Used Willy’s conceptual design for iron pieces

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Page 1: Meshed with no iron for comparison Used Willy’s conceptual design for iron pieces

• Meshed with no iron for comparison• Used Willy’s conceptual design for iron pieces

• Not optimized in any way• Used thin and thick pieces

• Compared fields (BMOD and BR)• Compared tracks for no iron, thick iron and “giant” iron• Reduced current density and compared optics

Note: op3 file names are:

no_iron_in_coils_test_ver2.op3 (smaller mesh size)iron_in_coils_ver3.op3 (thin)iron_in_coils_ver4.op3 (thick)iron_in_coils_ver5.op3 (giant)iron_in_coils_temp_BFIL_0_80.op3 (giant, reduced current)iron_in_coils_temp_BFIL_0_90.op3 (giant, reduced current)

Outline

Page 2: Meshed with no iron for comparison Used Willy’s conceptual design for iron pieces

No iron, coils only

BMODz=1375 cm

Page 3: Meshed with no iron for comparison Used Willy’s conceptual design for iron pieces

No iron w/ mesh

BMODz=1375 cm

Page 4: Meshed with no iron for comparison Used Willy’s conceptual design for iron pieces

Field on a line, middle of open sectorBMODz=1375 cm, y= 0 cm , 0 < x < -40 cm

With coils only With meshBMOD

Page 5: Meshed with no iron for comparison Used Willy’s conceptual design for iron pieces

Model body in mesh

Page 6: Meshed with no iron for comparison Used Willy’s conceptual design for iron pieces

thin iron

thick ironIron design

Page 7: Meshed with no iron for comparison Used Willy’s conceptual design for iron pieces

thick iron

1 m long, section of tube from 0.5 to 5.5 cm radiusOpening angle, thin: 5 degreesOpening angle, thick: 20 degrees

Placed radially from 5 – 20 cm between 1325 and 1425 cm in z

Iron design

Page 8: Meshed with no iron for comparison Used Willy’s conceptual design for iron pieces
Page 9: Meshed with no iron for comparison Used Willy’s conceptual design for iron pieces

Thin Iron w/ mesh

BMODz=1375 cm

Page 10: Meshed with no iron for comparison Used Willy’s conceptual design for iron pieces

Thick Iron w/ mesh

BMODz=1375 cm

Page 11: Meshed with no iron for comparison Used Willy’s conceptual design for iron pieces

Giant blocks of iron

BMODz=1375 cm

Page 12: Meshed with no iron for comparison Used Willy’s conceptual design for iron pieces

No iron w/ mesh

BMODz=1375 cm

Page 13: Meshed with no iron for comparison Used Willy’s conceptual design for iron pieces

Thin Iron w/ mesh

BMODz=1375 cm

Page 14: Meshed with no iron for comparison Used Willy’s conceptual design for iron pieces

Thick Iron w/ mesh

BMODz=1375 cm

Page 15: Meshed with no iron for comparison Used Willy’s conceptual design for iron pieces

Giant blocks of iron

BMODz=1375 cm

Page 16: Meshed with no iron for comparison Used Willy’s conceptual design for iron pieces

Middle of open sector

With thin iron

With no iron

BMOD

Page 17: Meshed with no iron for comparison Used Willy’s conceptual design for iron pieces

Middle of open sector

With thin iron

With thick ironWith no iron

BMOD

Page 18: Meshed with no iron for comparison Used Willy’s conceptual design for iron pieces

Edge of open sector

With thin iron

With no iron

BMOD

Page 19: Meshed with no iron for comparison Used Willy’s conceptual design for iron pieces

Edge of open sector

With thin ironWith thick iron

With no iron

BMOD

Page 20: Meshed with no iron for comparison Used Willy’s conceptual design for iron pieces

With no iron

With thick iron

Z=1375, r = 16.0 cm

BMOD

Page 21: Meshed with no iron for comparison Used Willy’s conceptual design for iron pieces

With “giant” iron

With thick iron

Z=1375, r = 16.0 cm

BMOD

Page 22: Meshed with no iron for comparison Used Willy’s conceptual design for iron pieces

With no iron

With giant iron, BFIL 80%

Along straight line approximation the track of the highest energy, lowest angle particle

Page 23: Meshed with no iron for comparison Used Willy’s conceptual design for iron pieces

With thick iron

With no iron

Page 24: Meshed with no iron for comparison Used Willy’s conceptual design for iron pieces

With no iron

With giant iron

Page 25: Meshed with no iron for comparison Used Willy’s conceptual design for iron pieces

With no iron

With giant iron, BFIL 90%

Page 26: Meshed with no iron for comparison Used Willy’s conceptual design for iron pieces

With no iron

With giant iron, BFIL 80%

Page 27: Meshed with no iron for comparison Used Willy’s conceptual design for iron pieces

Summary• No optimization of the iron was done

• According to this preliminary work, is 2% greater for the thick iron and about 28% greater for giant iron

• Lowest tracks radial position at detector plane increased 2 cm (from 90 cm) with the thick iron

• Lowest tracks radial position at detector plane increased 11 cm (from 90 cm) with the giant iron (same current density)

• Do NOT see a dramatic increase in the quality of the focus or size of the field• Radial focus may be a little better for transition and closed sectors

• Even with giant iron pieces, only reduce field (current density) by 20%

Not seen as a big enough gain to warrant using it

Page 28: Meshed with no iron for comparison Used Willy’s conceptual design for iron pieces

Extra slides

Page 29: Meshed with no iron for comparison Used Willy’s conceptual design for iron pieces

Vector plotsBMOD

Page 30: Meshed with no iron for comparison Used Willy’s conceptual design for iron pieces

With thin iron

With no iron

Cent

er o

f op

en s

ecto

r

Z=1375, r = 13.5 cm

BMOD

Page 31: Meshed with no iron for comparison Used Willy’s conceptual design for iron pieces

With thin iron

With no iron

Z=1375, r = 13.5 cm

BR

Page 32: Meshed with no iron for comparison Used Willy’s conceptual design for iron pieces

With thick iron

With thin iron

Z=1375, r = 13.5 cm

BMOD

Page 33: Meshed with no iron for comparison Used Willy’s conceptual design for iron pieces

With thick iron

With thin iron

Z=1375, r = 13.5 cm

BR