Flood Source Power Supply FS40A-PS



The FS40A-PS power supply allows fine adjustment of all instrument parameters for achieving a wide range of beam profiles; no additional electronics are required. All adjustable parameters are displayed on the large, high brightness LCD display. All settings can be stored and recalled automatically after unit switch on, or else manually adjusted. The unit also features a built in timer and automatic standby mode. The FS40A-PS can be supplied as a full width 19” rack mounting unit (3U height) or free standing.

The unit is also fully software controlled and web-enabled so that it can be operated over any network, including the internet.

Only one communication interface can be chosen at time of order (please refer to table) but this can be easily changed in the future via simple rear panel plugin connection modules, without ever having to access the internals of the unit.


The FS40A-PS power supply is designed for use with the FS40A1 Electron Flood Sources which are used for charge neutralization of insulator and semiconductor samples in XPS/AES and SIMS applications.


Full dedicated software application or library module.


Technical data

Supply Voltage 110V or 230V, 50/60Hz specify at order
Beam Energy Low Energy Range 0.01eV - 10eV, resolution 0.01eV
Beam Energy High Energy Range 10eV - 500eV, resolution 0,1eV
Emission current (le) 1 - 500μA, resolution 1μA
Extractor Voltage 1 ÷ 30 V
Focus Voltage (F) 300 - 700V, resolution 0.1V
Wehnelt voltage (Ex) 1 - 30V, resolution 0,1V
User Interface Large LCD graphics display
Functions keys and digital encoder
Communication Interface* (option) RS232/485/422, USB, EtherNet/IP, Bluetooth
Dimensions [mm] 483 x 133 x 380 (W x H x D), 19" rack mountable or alone
Weight, approx 8 kg

* Only one comms interface can be used at any one time and is chosen at time of order. However, this may be swapped/interchanged with any other comms interface at any future date via simple rear panel plug and play swap, without having to access the internals of the unit.