Pioneering the door to the futurewith commitment to technology

Single Cam Type DCM <TWD-1C>

Features
The energy of the exit
beam is determined onlyby the rotation angle θwithout any displacementof the crystals withrespect to the beam.

The main rotation axis coincides with thesurface plane and center of the 2nd crystal.
Shift of the 1st crystal position withrespect to the incident beam, which would
be caused by simple rotation of the tablearound the main axis is compensated byvertical motion of the 1st crystal guided bythe cam.

Consists of ;<TWD-1C installed in NSRRC BL15 >D2(Z2)

LN2 Flex.
TubeBalancer

The 2nd. Crystal
Alignment stages

Y1

The 1st.
CrystalAlignment
stagesZ Cam
SystemMain axis goniometer
Offset-footprint control
and optical element
adjustment mechanisms
Supporting structureVacuum chamber
Cooling provisions
Motor drivers
PiezoEncoder electronics
Accessories

70 degree Celsius
bakeable.
The first and second
crystal are cooled by LN2.
The first crystalalignment stages
Y1: -5 to 240 mm
Zc1: -17.26 to -12.5 mm
D1(Z1) : ±10 mm
φ1: ±1 degree
θ1: ±1 degree (Coarse): ±50 arcsec (Fine)

Specifications
ModelTWD-1C

Rotation Center (main θ)

1375 mm

Beam Offset

25 mm Upward

Bragg Angle Range

3.0 – 40.0 degree (-0.5 – 42 degree mechanically)

Energy Range : Si(111)

3.1 – 37.0 KeV

Main θ Rotation Center

Center and surface of the second crystal

Exit Beam Stability in time

3 arcsec in 2 hours

Crystal Parallelism

10 arcsec (Each θ= 3 – 8 degree, 8 – 40 degree)(5 arcsec as target without piezo in each angle range)

1 arcsec (with piezo adjustment )Vacuum Pressure

4.00 x 10E-5 Pa

Crystal Size : Si(111)60 x 40 x 40 (W x L x T : mm) *1

Dimension

1100 x 1480 x 1936 (W x L x H : mm)

Date of issue: 2010/May/19*1 The crystal is not abailable

The second crystalalignment stages
D2(Z2) : ±10mm
φ2: 1 degree
θ2: ±1 degree (Coarse)

The supporting table
Xt
Zt: 420 mm (Only gonio): ±50mm

Kohzu Precision Co.,Ltd.
Tel: +81-44-981-2131
Fax: +81-44-981-2181
Email:sale@kohzu.co.jp
URL://www.kohzuprecision.com

Pioneering the door to the futurewith commitment to technology

Single Cam Type DCM <TWD-1C>
ContinuedFeatures
The energy of the exit
beam is determined onlyby the rotation angle θwithout any displacementof the crystals withrespect to the beam.
Consists of ;Data (Parallelism)

5.5 arcsec (pitch Y), 3 arcsec (roll X)
TWD-1C Crystal Parallelism 100419

TWD-1C Crystal Parallelism(Target 3 to 8 degree)
8472

634

567

Error (arcsec)

Error (arcsec)

508-2

4
32-4

10
8-6
Target Angle (deg)101214161820222426

2830

32

34

36

-1
Target Angle (deg)

1st X ccw

1st Y ccw

1st X cw

1st Y cw

1st X ccw

1st Y ccw

1st X cw

1st Y cw

2nd X ccw

2nd Y ccw

2nd X cw

2nd Y cw

2nd X ccw

2nd Y ccw

2nd X cw

2nd Y cw

Data (Accuracy for main θ)

Ｅｒｒｏｒ（ arcsec ）

4.0
2.0
0.0
-2.0 0
-4.0
-6.0
-8.0
-10.0
-12.0
-14.0
-16.0
-18.0

51015

20

25

30

35

40

Take1 cｗ Error

40

70 degree Celsius
bakeable.
The first and second
crystal are cooled by LN2.

Y1
: -5 to 240 mm
Zc1: -17.26 to -12.5 mm
D1(Z1) : ±10 mm
φ1: ±1 degree
θ1: ±1 degree (Coarse): ±50 arcsec (Fine)

The second crystalalignment stages

Target Angle（degree）

Take1 cｃｗ Error

38

The first crystalalignment stages

TWD-1C Main Axis Accuracy at NSRRC 100420

Take1 cｗ-ccｗ Error

D2(Z2) : ±10mm
φ2: 1 degree
θ2: ±1 degree (Coarse)

TWD-1C Main axis Accuracy with Feedback at NSRRC

Ｅｒｒｏｒ（ arcsec ）Main axis goniometer
Offset-footprint controland optical element
adjustment mechanisms
Supporting structureVacuum chamber
Cooling provisions
Motor drivers
PiezoEncoder electronics
Accessories

1.0
0.9
0.8
0.7
0.6
0.5
0.4
0.3
0.2
0.1
0.0

The supporting table
Xt
Zt

0102030

Target Angle（degree）

Take1 cｃｗ Error

Date of issue: 2010/May/19

Take1 cｗ Error

Take1 cｗ-ccｗ Error

40: 420 mm (Only gonio): ±50mm

Kohzu Precision Co.,Ltd.
Tel: +81-44-981-2131
Fax: +81-44-981-2181
Email:sale@kohzu.co.jp
URL://www.kohzuprecision.com