HIS 14 HD Mono:
Monochromatic high density VUV source


The HIS 14 HD Mono has been designed for ultraviolet photoelectron spectroscopy on solids with the monochromatic discharge lines of He I and He II. Together with the small spot of 300 μm the HIS 14 HD Mono is the best choice for ARPES or PEEM applications where high flux densities into a small area are mandatory.


Especially the momentum microscopy by means of PEEM or NanoESCA instruments takes remarkably advantage from this new source:

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Features: Robust water cooled design with direct-sight connection between the discharge area and the target for easy alignment. A port aligner facilitates the positioning of the light spot on the sample in a range of +/- 3°. For dedicated ARPES experiments there is an optional third pumping stage available for operation in the 10-10 mbar range.

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The focusing and monochromatizing of the light spot down to 300 μm is realized with state of the art synchrotron beam line optics technology.

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The HIS 14 HD Mono is mounted on a flange CF 63 ID (optional: CF 100 ID) and comes with a customized adaptor flange to adapt the HIS 14 HD to the customer‘s experiment (chamber drwg. to be provided by the customer).

A low noise digital power supply provides up to 300 mA discharge current for HeI and HeII operation. The minimum photon line width with HeI excitation is below 2 meV. The power supply supports the automatic plasma ignition and the included Pirani pressure gauge.



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