Windowless Hollow Cathode

1、Emits from 25nm to the Visible

2、Uses inert gases or mixtures

3、CW operation (not pulsed)

4、Stable, Quiet

The Model 629 Hollow Cathode is a CW gas discharge source used to ionize molecular or rare gases. It operates with no window and is a rich source of ion lines at wavelengths longer than 25 nm (less than 50 eV). Output line emission depends on the gases used. It is possible to mix or switch gases during operation. It is electrically quiet and features a water cooled anode and cathode. A differential pumping accessory is available to limit the gas load into the spectrometer. Commercial grade gases are generally used and selection may depend on your application. The source body has a port for directly monitoring gas pressure in the discharge. The Model 629 is a flexible source system for vacuum ultraviolet (VUV) wavelength calibration, ultraviolet photoemission spectroscopy (UPS) and other extreme UV spectroscopy applications.
Source operation requires a 2 kV 500 mA current regulated power supply like the McPherson Model 730

Model 629 PDF Data Sheet