Pioneering the door to the futurewith commitment to technology

Double Cam type DCM <NSM-1>

Features2 types (L and R)

This typed DCM is onlyreleased by Kohzu.

 It allows to reduce thenumber of vacuum
motors.

It allows to optimize thedistance between double
crystal planes and the
distance between the double
crystal centers at the sametime by using double cams.

 The simple control by
only rotating the mainaxis.
<Prototype SGA-12DCM : View
at High angle ><View at low angle >ICF203 for TMPThe accuracy is within
10 arcsec with open loop.

Leak port
The 1st. Crystal
Goniometer

Beam Stopper
Axis

The 2nd. Crystal
Goniometer

Don’t need to moveother alignment stages toget a monochromatic
beam in each angle.
The quick scan isavailable.
The footprint occurs on
the first crystal.

SupportTable

Cam System<SGA-12DCM : Prototyped Model >Specifications
NSM-1 (L, R )Beam Height

1200 mm (incident beam)

Beam Offset

25 mm Upward

Bragg Angle Range

5.0 – 72.0 degree (0 – 75 degree mechanically)
5.0 – 50.0 degree (0 – 72 degree mechanically) *1

Main θ Rotation CenterCenter, and surface of the second crystal

Output Beam Stability±20 um / m (θ= 5 – 10 degree, 60 – 70 degree)±10 um / m (θ= Except for above angle )Crystal Parallelism

20 arcsec (θ= 5 – 10 degree, 60 – 70 degree)
10 arcsec (θ= Except for above angle )Vacuum Pressure

1.33 x 10E-5 Pa

Crystal Size

100 x 70 x 10 (W x L x T : mm) *2

Dimension

1130 x 1811 x 1675 (W x L x H : mm)

Date of issue: 2010/May/19

The first crystal iscooled by water.
The first crystalalignment stages

Model*1 In a case of compton shield installedDirect beam can passthrough the DCM

Z1 : ±10.0 mm(manual)θx1 : ±1 degree (Coarse): ±4.2 arcsec (Fine)θy1 : ±1 degree (manual)*2 The crystal is not abailable

The second crystalalignment stages
Z2 : ±10mm(manual)θx2 : ±1 degree (Coarse)θy2 : ±1 degree

The supporting table
Xt : ±50mm
Zt : ±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

Double Cam type DCM <NSM-1>
Continued
Data (Main Axis Accuracy）

7 arcsec

SGA-12DCM Main Axis Accuracy ( 0 to 55 degree)
7

Take 1 (To high angle)
Take 1 (Return)Take 2 (To high angle)
Take 2 (Return)5

E rror (arcsec)

3Features
2 types (L and R)
 It allows to reduce thenumber of vacuum
motors.
 The simple control by
only rotating the mainaxis.

1

The accuracy is within
10 arcsec with open loop.

-1-3-5525450

4648

444238403634323028262422

20

18

16

14

128106420-7Target Angle (degree)

Data (Parallelism)7 arcsec (pitch), 5 arcsec (roll)Don’t need to moveother alignment stages toget a monochromatic
beam in each angle.
The quick scan isavailable.

SGA-12DCM Crystal Pitching Parallisim (5 - 60 degree)
5

Take 1 (To higher angle)
Take 1 (Return)Take 2 (To higher angle)
Take 2 (Return)

432

The footprint occurs on
the first crystal.
Direct beam can passthrough the DCM

Error (arcsec)

1

The first crystal iscooled by water.

0-1-2

The first crystalalignment stages-3-4-55 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60

Main θ angle（degree）

Z1 : ±10.0 mm(manual)θx1 : ±1 degree (Coarse): ±4.2 arcsec (Fine)θy1 : ±1 degree (manual)

SGA-12DCM Crystal Rolling Parallelism (5 - 60 degree)The second crystalalignment stages

5Take 1 (To higher angle)
Take 1 (Return)Take 2 (To higher angle)
Take 2 (Return)4
3

Z2 : ±10mm(manual)θx2 : ±1 degree (Coarse)θy2 : ±1 degree

Error (arcsec)

21

The supporting table

0

Xt : ±50mm
Zt : ±50mm-1-2-3Kohzu Precision Co.,Ltd.

-4

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

Main θ angle (degree)

Date of issue: 2010/May/19595755

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