MSDD1000
Description
Specification
Configurations
Diffraction gratings
Specification of monochromator-spectrograph MSDD1000
Dimensional drawing of MSDD1000 series monochromator-spectrograph
Dimensional drawing of MSDD1000 instrument

Optical system

Optical scheme:modified Cherny-Turner
two-fold configuration
Wavelengths range:185 nm – 60 µm
F\number:1/5.9
Focal length:1000 mm
(2 х 500 mm)
Scanning range limited by grating rotation angle*:0 – 1280 nm
Basic mirrors:spherical
Stray light:10-8
(20 nm from the laser line 632,8 nm)
Flat field:28 х 10 mm
  • Optical scheme: modified Cherny-Turner two-fold configuration.
  • Wavelengths range: 185 nm — 60 µm.
  • F\number: 1/5.9.
  • Focal length: 1000 mm (2 х 500 mm).
  • Scanning range limited by the grating rotation angle*: 0 – 1280 nm.
  • Basic mirrors: spherical.
  • Stray light: 10-8 (20 nm from laser line 632,8 nm).
  • Flat field: 28 х 10 mm.

Imaging

Model:MSDD1002MSDD1004MSDD1002iMSDD1004i
Horizontal magnification:1.081.081.081.08
Vertical magnification:1.111.11
Vertical spatial resolution = minimal distance between the edges of two neighboring tracks (in multi-channel spectroscopy):< 15 µm< 15 µm
  • Model MSDD1002: horizontal magnification = 1.08.
  • Model MSDD1004: horizontal magnification = 1.08.
  • Model MSDD1002i: horizontal magnification = 1.08; vertical magnification = 1.11; vertical spatial resolution = minimal distance between the edges of two neighboring tracks (in multi-channel spectroscopy) < 15 µm.

  • Model MSDD1004i: horizontal magnification = 1.08; vertical magnification = 1.11; vertical spatial resolution = minimal distance between the edges of two neighboring tracks (in multi-channel spectroscopy) < 15 µm.

Спектральное изображение полученное на монохроматоре-спектрографе MSDD1000
Spectral image obtained with monochromator-spectrograph MSDD1000 (grating 1200 l/mm, light source – mercury-helium lamp – 576.961 nm and 579.067 nm, multi-channel optical fiber bundle, fiber core diameter 200 µm, CCD pixel size 12×12 µm). 1 – spectral image in full. 2 – enlarged part of the spectral image.
Увеличенная часть спектрального изображения

Drive specifications

Motor:micro stepper
Drive:sine
Step size:0.18 arc seconds
Precision:± 1 step
Maximal speed:10000 steps/s
  • Motor: micro stepper.
  • Drive: sine.
  • Step size: 0.18 arc seconds.
  • Precision: ± 1 step.
  • Maximal speed: 10000 steps/s.

Optics characteristics

Reciprocal dispersion:0.82 nm/mm
Repeatability:± 0.005 nm
Spectral resolution:
PMT:0.013 nm
Digital camera (12 µm pixel):0.017 nm
Wavelength accuracy:± 0.028 nm
Average scanning step:0.0014 nm
  • Reciprocal dispersion: 0.82 nm/mm.
  • Repeatability: ± 0.005 nm.
  • Spectral resolution: PMT = 0.013 nm; digital camera (12 µm pixel) = 0.017 nm.
  • Wavelength accuracy: ± 0.028 nm.
  • Average scanning step: 0.0014 nm.

Diffraction gratings

Size of grating:80 x 70 x 10 mm
Rotation method:about the center of ruled grating surface
Mounting of diffraction gratings in models MSDD1004 and MSDD1004i:automated turret for 2 pairs of gratings
Mounting of diffraction gratings in models MSDD1002 and MSDD1002i:holder for 1 pair of manually changeable grating
Grating repeatability for automated turret for 2 pairs of gratings (models MSDD1004 and MSDD1004i):
wavelength*:± 0.006 nm
vertical image:± 20 µm
Grating repeatability for holder for 1 manually changeable grating (models MSDD1002 and MSDD1002i):
wavelength*:± 0.05 nm
vertical image:± 75 µm
  • Size of grating: 80 x 70 x 10 mm.

  • Rotation method: about the center of ruled grating surface.

  • Mounting of diffraction gratings in models MSDD1004 and MSDD1004i: automated turret for 2 pairs of gratings.
  • Mounting of diffraction gratings in models MSDD1002 and MSDD1002i: holder for 1 pair of manually changeable grating.
  • Grating repeatability for automated turret for 2 pairs of gratings (models MSDD1004 and MSDD1004i): wavelength* = ±0.006 nm; vertical image = ±20 µm.
  • Grating repeatability for holder for 1 manually changeable grating (models MSDD1002 and MSDD1002i): wavelength* = ±0.05 nm; vertical image = ±75 µm.

Spectral slits automated (combined)

Control:automated (drive) or manual (micrometer)
Width:regulated from 0 up to 2.0 mm
Parallelism:± 1 µm
Accuracy (slit 1 mm):± 10 µm
Repeatability:± 1 µm
Reading accuracy (micrometer):2 µm
Step size:0.5 µm
Height:diaphragm-regulated from 0 up to 10 mm with division value of 0.5 mm
  • Control: automated (drive) or manual (micrometer).
  • Width: regulated from 0 up to 2.0 mm.
  • Parallelism: ±1 µm.
  • Accuracy (slit 1 mm): ±10 µm.
  • Repeatability: ±1 µm.
  • Reading accuracy (micrometer): 2 µm.
  • Step size: 0.5 µm.
  • Height: diaphragm-regulated from 0 up to 10 mm with division value of 0.5 mm.

Spectral slits (manually operated)

Control:manual (micrometer)
Width:regulated from 0 up to 2.0 mm
Parallelism:± 1 µm
Accuracy (slit 1 mm):± 10 µm
Repeatability:± 1.5 µm
Reading accuracy (micrometer):2 µm
Height:diaphragm-regulated from 0 up to 10 mm with division value of 0.5 mm
  • Control: manual (micrometer).
  • Width: regulated from 0 up to 2.0 mm.
  • Parallelism: ±1 µm.
  • Accuracy (slit 1 mm): ±10 µm.
  • Repeatability: ±1.5 µm.
  • Reading accuracy (micrometer): 2 µm.
  • Height: diaphragm-regulated from 0 up to 10 mm with division value of 0.5 mm.

Ports

Number of ports:2 input, 2 output
Output port repeatability (automated mirror)*:± 0.01 nm
Switching time (input port):4 s
Switching time (output port):4 s
  • Number of ports: 2 input, 2 output.
  • Output port repeatability (automated mirror)*: ±0.01 nm.
  • Switching time (input port): 4 s.
  • Switching time (output port): 4 s.

Integrated shutter

Number:2 (in each input port)
Shut time:~100 ms
Maximal frequency:1 Hz
Control:on-board CPU or TTL-signals from the external device
  • Number: 2 (in each input port).
  • Shut time: ~100 ms.
  • Maximal frequency: 1 Hz.
  • Control: on-board CPU or TTL-signals from the external device.

Control

Central control:on-board CPU
External control:PC
External interface:Ethernet
  • Central control: on-board CPU.
  • External control: PC.
  • External interface: Ethernet.

Dimensions

Overall sizes (L х W х H):556 х 324 х 340 mm
Weight:35 kg (may differ, depends on configuration)
  • Overall sizes (L х W х H): 556 х 324 х 340 mm.
  • Weight: 35 kg (may differ, depends on configuration).

* The characteristics are given for grating 1200 lines/mm, slit width 15 μm, wavelength 546 nm.