Water Cell BDS Positions

 

Target

Description/Material

BDS Encoder Position

Corrected Encoder Position

BDS Enabled

 

Loop 1 Cell

20 cm He

32975295

 

Not Allowed

 

Loop 2 Cell

20 cm He

25335001

 

Not Allowed

 

Loop 3 Cell

25 cm H2

17638361

 

Not Allowed

 

Optics Target

Carbon foils O,±7.5,±15

12674495

 

Yes

 

Dummy Target Hole

Aluminum Foils 2 mm hole

12024255

 

Yes

 

Dummy Target

Aluminum Foils ±12.5 cm

11699135

 

Yes

 

BeO Viewer

BeO Foil

9277410

 

Yes

 

Thin Tantalum

Tantalum foil

7651810

 

Yes

 

Empty

N/A

6026210

 

Yes

 

Not Allowed

 

4400610

 

Yes

 

H2O Cell

H2O

2775010

 

Yes

 
      
      
      
      

Cryo Target BDS Positions

 

Target

Description/Material

BDS Encoder Position

Corrected Encoder Position

BDS Enabled

 

Loop 1 Cell

20 cm He

32975295

 

No

 

Loop 2 Cell

20 cm He

25335001

 

No

 

Loop 3 Cell

25 cm H2

17638361

 

Yes

 

Optics Target

Carbon foils O,±7.5,±15

12674495

 

Yes

 

Dummy Target Hole

Aluminum Foils 2 mm hole

12024255

 

Yes

 

Dummy Target

Aluminum Foils ±12.5 cm

11699135

 

Yes

 

Carbon Hole

Carbon Foil 2mm Hole

8952290

 

Yes

 

Thin Tantalum

Tantalum foil

7326690

 

Yes

 

Thick Tantalum

Tantalum foil

5701090

 

Yes

 

BeO

BeO

4075490

 

Yes

 

Empty

Empty

2449890

 

Yes

 
      

Note: this table is converted from http://www.jlab.org/~meekins/Target_Configs/HallA/Aug_09/BDS_positions.xlsx