In standard form, the model BOS-25 Beam Observation system has a 25mm diameter active area MCP and P-43 phosphor screen assembly, housed within a 4.50″ (114mm) conflat flange with glass viewport. Electrical connections to the phosophor screen and MCP are made with MHV feedthroughs.
Optional configurations are discussed in detail below and include 6″ (152mm) flange mount (BOS-25-6), dual MCP plates (chevron), SHV feedthroughs, fiberoptic windows, and CCD camera systems.
Imaging Area:
- 25mm Diameter
MCP: (Standard)
- 1.289″ Diam. (BOS-25), 10 micron channel diameter, Imaging Grade
- 25mm active area, 12 micron pitch, 12° Bias Angle, 40:1 Aspect Ratio (Standard, BOS-25)
- Max. Gain: 2 x 104 (single plate, Std.) 1000V > 107 (chevron, OPT-01), 2000V
Phosphor Screen (Standard)
- P-43 with aluminum overcoat. P-43 Peak Wavelength: λ= 545 nm.
Power Supply Requirements:
- 0 – + 1000V, 1mA single MCP (Standard)
- 0 – + 2000V, 1mA dual MCP (OPT-01)
- 0 – + 5000V, 1 mA Phosphor Screen
Beam Energy Range:
- 1 eV to over 50 keV
Beam Current Range:
- < 10 μA (with optional beam attenuation grids)
Vacuum: 1 x 10-6 Torr or better required to operate MCP
- UHV compatible, maximum bakeout temperature 300 C
Welded Glass Windows (Standard)
- A non-removable glass window that is welded to the flange is standard. This allows bakeout temperatures > 200C.
