Methods and systems for verifying compatibility of components (e.g. parts or devices) of an electronic system are disclosed. In certain embodiments the method includes: irradiating a first and second components presumably associated with the electronic system, with XRF exciting radiation, and detecting one or more XRF response signals indicative of a first and a second XRF signatures, emitted from the first and second components in response to the irradiation. Then the first and second XRF signatures are processed to determine whether they are associated with respectively a first and second XRF marking compositions on the first and second components, and the compatibility of the first and second components to the electronic system is determined/verified based on the correspondence between the first and a second XRF signatures/marking. Certain embodiments also disclose electronic systems including at least a first and a second electronic components/devices respectively having the first and second XRF marking compositions that enable verification of compatibility of the components. Certain embodiments disclose techniques for pairing the first and second components (e.g. devices) based a correspondence between the first and second XRF signatures/markings thereof. Certain embodiments disclose various calibration techniques for calibrating the XRF measurements of XRF markings applied to different substrate materials of the electronic components.

The invention includes apparatus and methods for instantiating and quantum printing materials, such as elemental metals, in a nanoporous carbon powder.

The invention includes apparatus and methods for instantiating and quantum printing materials, such as elemental metals, in a nanoporous carbon powder.

The invention includes apparatus and methods for instantiating and quantum printing materials, such as elemental metals, in a nanoporous carbon powder.

System and method for determining the composition of deposited thin films by acquiring multiple sequential X-ray spectra for a film of interest during the deposition process as the film thickness increases, computing intensities of peaks found in the X-ray spectra corresponding to elements present in the film material, followed by computing, for each pair of elements, ratios of corresponding peak intensities, graphing the intensities and ratios against a parameter correlated to the film thickness, and applying a physically meaningful function to the graphed data for best fitting the data down to a ratio R.sub.A/B(0) for each pair of the elements for a virtual film of zero thickness. Elemental concentrations ratio for each pair of elements is subsequently computed as a product of R.sub.A/B(0) and a factor which is specific for the pair of elements, constant for the instrument as set up, and independent of elements concentrations, and of film thickness.