Difference between revisions of "Chopper Parameters"

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| Total Package Thickness (mm)
 
| Total Package Thickness (mm)
 
|-
 
|-
−
| Fermi Chopper:
+
| Fermi:
 
| 1300
 
| 1300
 
| 2.30
 
| 2.30
Line 57: Line 57:
 
| 98.
 
| 98.
 
|-
 
|-
−
| Gd Chopper:  
+
| Gd:  
 
| Inf
 
| Inf
 
| 0.2
 
| 0.2
 
| 0.02
 
| 0.02
 
| 10.
 
| 10.
 +
|}
 +
 +
== LET Choppers ==
 +
 +
These have following parameters:
 +
 +
{| class="wikitable" style="color:blue;
 +
| Chopper
 +
| Radius (mm)
 +
| Slot width (mm)
 +
| Guide width (mm)
 +
| Number of slots
 +
| Number of Disks
 +
| Distance (m)
 +
|-
 +
| Disk 1
 +
| 290
 +
| 40
 +
| 40
 +
| 6
 +
| 2
 +
| 7.83
 +
|-
 +
| Disk 2
 +
| 545
 +
| 890
 +
| 40
 +
| 1
 +
| 1
 +
| 8.4
 +
|-
 +
| Disk 3
 +
| N/A
 +
| N/A
 +
| N/A
 +
| N/A
 +
| N/A
 +
| N/A
 +
|-
 +
| Disk 4
 +
| 290
 +
| 52
 +
| 40
 +
| 6
 +
| 1
 +
| 15.66
 +
|-
 +
| Disk 5
 +
| 290
 +
| 10
 +
| 10
 +
| 2
 +
| 2
 +
| 23.5
 +
|-
 
|}
 
|}

Latest revision as of 13:05, 23 May 2016

MARI Choppers

MARI uses range of Fermi choppers with the following parameters: 

 Length of slits: 100mm
 Slats: Boron fibre reinforced resin
 Slits: Hollow aluminium frame

Other parameters:

Chopper Curvature Radius (mm) Slit width (mm) Slat width (mm)
Chopper A (500mEv): 1300 0.76 0.55
Chopper B (200mEv): 820 1.14 0.55
Chopper С (100mEv): 580 1.52 0.55
Chopper В (50mEv): 410 1.52 0.55
Chopper S (Sloppy): 1300 2.28 0.55

MERLIN Choppers

These have following parameters:

Chopper Curvature Radius (mm) Slit width (mm) Absorber Thickness (mm) Total Package Thickness (mm)
Fermi: 1300 2.30 0.55 98.
Gd: Inf 0.2 0.02 10.

LET Choppers

These have following parameters:

Chopper Radius (mm) Slot width (mm) Guide width (mm) Number of slots Number of Disks Distance (m)
Disk 1 290 40 40 6 2 7.83
Disk 2 545 890 40 1 1 8.4
Disk 3 N/A N/A N/A N/A N/A N/A
Disk 4 290 52 40 6 1 15.66
Disk 5 290 10 10 2 2 23.5
Retrieved from ‘http://shadow.nd.rl.ac.uk/wiki/idr/index.php?title=Chopper_Parameters&oldid=291’