incl. VAT, plus shipping

Delivery Time 2 - 3 Weeks

Low-cost electron flood gun for charge neutralisation of insulators or semiconductors in XPS/AES and SIMS applications.
Set includes
- Flood Source FS 40A1 (mu-metal or Cu shield)
- Flood Source power supply FS40A-PS, 100-240V, with 7.5m
cables and communication interface RS-232/485 and Ethernet
- Mains cable with EURO or UK or JP/USA plug
Manufactured by PREVAC

Product Description

Low-cost electron flood gun for charge neutralisation of insulators or semiconductors in XPS/AES and SIMS applications.


The flood source operates over two energy ranges, is fully software controlled and can also be supplied with custom insertion lengths (145 - 421 mm, other on request) and shielding materials, e.g. mu-metal, copper.



·        High electron beam current

·        Selectable energy ranges

·        Stabilised emission

·        Beam profile control




·        Linear shift

·        Customised insertion length

·        Source shielding material (μ-metal or copper)

Flood Source Power Supply FS40-PS

The FS40-PS power supply allows fine adjustment of all instrument parameters for achieving a wide range of beam profiles.


All adjustable parameters are displayed on the large TFT display with touchscreen. All settings can be manually adjusted or can be stored and recalled automatically after unit switch on. The unit also features a built in timer and automatic standby mode. The FS40-PS can be supplied as a full width 19″ rack mounting unit (3U height) or free standing. Unit can be remotely controlled via one of available interfaces. Unit also provides remote control of beam energy, emission current, focus and extractor voltages using analog interface. Autosave function for saving your parameters/unit preset and applying them automatically after restart.




The FS40-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.



- Software control (Version Pro, Extended or Library Module).

Product Details

Created with Sketch.

Flood Source FS 40A1



Mounting flange: DN 40CF (non-rotatable)

Energy range: 0.01 - 500 eV

Sample current: up to 100 μA

Cathode type: thoriated tungsten

Shield: Cu or μ-metal

Insertion length: min. 145 mm (others on request), OD: 33.6 mm (μ-metal), 35 mm (Cu)

FWHM: depending on working distance (e.g. 10 mm for distance 30 mm)

Typical working distance: 20-100 mm

Bakeout temperature: up to 250°C

Working pressure: < 5 × 10-6 mbar

Flood Source Power Supply FS40-PS 



Supply voltage: 100 V - 240 V, 50/60 Hz (power consumption max 70 W) 

Beam energy (low energy range): 0.01 - 50 eV, resolution 0.01 eV 

Beam energy (high energy range): 50 - 1000 eV, resolution 0.1 eV 

Emission current: 1 - 1000 μA, resolution 0.1 μA 

Focus voltage: 300 - 1000 V, resolution 0.1 V 

Extractor voltage: 0 - 150 V, resolution 0.1 V 

Analog inputs: 4 (0-10V) 

Timer: dual mode timer 0s - 99h 59m 

Communication interface: RS232/485, Ethernet 

Communication protocol: MODBUS-TCP 

User Interface: 7” TFT display with touchscreen, digital encoder 

Interface languages: English, German, Polish 

Dimensions: 483 x 133 x 435 mm (W x H x D), 19" rack mountable or alone 

Weight (approx.): 5.2 kg