OCI BDL450, Инструкция по эксплуатации

Страница: 8 / 61

8 Chapter 2 Specifications
2.2 Miniature Electron Gun Model G10
Beam Energy LEED: 5 to 750 eV
AES: 5 to 3000 eV
Beam Current LEED: 2
μA
at 100 eV
AES: up to 100
μ
A at 3 keV
Beam Size Adjusted by a potential of the Wehnelt cylinder typically
ranging from 1 mm to 250
μm,
minimum of 50
μm
using an
exchangeable aperture.
Electron Source Thoriated (2%) tungsten filament (standard) or directly
heated LaB
6
single crystal.
Dimensions Lens diameter of 10 mm and 80 mm in length.
2.3 Power Supply Models LPS075-D and
LPS300-D
Beam Voltage LPS075-D: negative 0–750 V
LPS300-D: negative 0–3000 V
Filament Current 0–3.2 A
Wehnelt Voltage 0–37 V with respect to the filament
Focus Voltage LEED: positive 70–180% of the beam voltage
AES: negative 0–3000 V
Retarding Voltage Negative 50–110% of the beam voltage
Screen Voltage Positive 0–5000 V
Emission Current 1–200 μA
Beam Current 0.01–200
μA
Monitoring All voltages and currents.
Display Vacuum fluorescent, displaying all voltages, currents, and
program functions.
On-Board Automation 5 pre-programmed and fully programmable operating pro-
grams for outgassing, stand-by, filament forming, beam