Model 209V Spectrometer

Model 209V Vacuum spectrometer is a 1.33 meter fl, f/9.4 (nominal), features patented "Corrected-Loci" (US Pat. 3490848) and "Snap-In" Grating Assembly (US Pat. 3433557), vacuum tight housing, focusing and collimating mirrors and mounts, optics MgF₂ coated, provisions for easy installation of spectrograph attachments and microchannel plate diode array and other accessories. Manual drive, including a wavelength counter accurate to ±1Å. Grating holder to accept plane "Snap-In" 110 x 110 or 120 x 140 mm gratings. Instrument completely assembled and factory aligned, and if so ordered, with selected optional accessories installed.

Specifications

Focal Length 1.33 meter

Angle between entrance and exit beams 0, 90, or 180 degrees

f / No. 9.4

Wavelength Range 115 nm to 78 um

Grating Size 120 mm x 140 mm

Wavelength Accuracy (with 1200 G/mm grating) +/- 0.05 nm

Wavelength Reproducibility (with 1200 G/mm grating) +/- 0.005 nm

Camera Attachment Accepts 4" x 5" film, polaroid back or MCP/PDA

Performance

Grating (G/mm) (others available) 2400 1800 1200 600 300 150 75 20

Wavelength Range from 185 nm to 650 nm 860 nm 1.3 um 2.6 um 5.2 um 10.4 um 20.8 um 78 um

First Order Littrow Blaze 240 nm holo 250 nm 300 nm 750 nm 1.25 um 2.0 um 45 um

300 nm 300 nm 500 nm 1.0 um 2.5 nm 3.0 nm

holo 500 nm 750 nm 3.0 um 4.0 um 8.0 um

750 nm 1.0 um 4.0 um 6.0 um 10.0 um

1.0 um 1.85 um 8.0 um 12.0 um

Resolution (nm) at 313.1 nm 0.005 0.007 0.01 0.02 0.04 0.08 0.16 0.60

Dispersion (nm/mm) 0.31 0.41 0.62 1.24 2.48 4.96 9.92 37.2

Wavelength Range at Focal Plane nm 15.5 20.5 31.0 62.0 124.0 248.0 496.0 1860

Theoretical Spectral Bandwidth at 10um exit slit (nm) 0.0031 0.0041 0.0062 0.0124 0.0248 0.0496 0.0992 0.372

McPherson, Inc.

7A Stuart Road, Chelmsford, MA 01824

Telephone (978) 256-4512 Fax (978) 250-8625 E-Mail mcp@mcphersoninc.com

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Focal Length	1.33 meter
Angle between entrance and exit beams	0, 90, or 180 degrees
f / No.	9.4
Wavelength Range	115 nm to 78 um
Grating Size	120 mm x 140 mm
Wavelength Accuracy (with 1200 G/mm grating)	+/- 0.05 nm
Wavelength Reproducibility (with 1200 G/mm grating)	+/- 0.005 nm
Camera Attachment Accepts	4" x 5" film, polaroid back or MCP/PDA

Grating (G/mm) (others available)	2400	1800	1200	600	300	150	75	20

Wavelength Range from 185 nm to	650 nm	860 nm	1.3 um	2.6 um	5.2 um	10.4 um	20.8 um	78 um



First Order Littrow Blaze	240 nm	holo	250 nm	300 nm	750 nm	1.25 um	2.0 um	45 um
	300 nm		300 nm	500 nm	1.0 um	2.5 nm	3.0 nm
	holo		500 nm	750 nm	3.0 um	4.0 um	8.0 um
			750 nm	1.0 um	4.0 um	6.0 um	10.0 um
			1.0 um	1.85 um		8.0 um	12.0 um



Resolution (nm) at 313.1 nm	0.005	0.007	0.01	0.02	0.04	0.08	0.16	0.60

Dispersion (nm/mm)	0.31	0.41	0.62	1.24	2.48	4.96	9.92	37.2

Wavelength Range at Focal Plane nm	15.5	20.5	31.0	62.0	124.0	248.0	496.0	1860

Theoretical Spectral Bandwidth at 10um exit slit (nm)	0.0031	0.0041	0.0062	0.0124	0.0248	0.0496	0.0992	0.372