51 results about "Energy Dispersive Spectrometer" patented technology

In an energy dispersive spectrometer wherein event (particle / photon) detection is performed by counting events spaced by greater than a shaping time, events which are spaced by less than the shaping time are also collected and counted. These “combined events” are treated similarly to “single events” which are spaced by greater than the shaping time, and can be used to generate combined-event spectra for comparison and / or use with the conventional single-event spectra. The combined-event spectra can be compared to the single-event spectra to provide an indication of data quality; can be subtracted from the single-event spectra to remove artifacts, and / or can be deconvolved into a single-event spectrum to increase the resolution of the single-event spectrum.

The invention discloses a Ni-Cu-La-B quaternary alloy plating solution. The Ni-Cu-La-B quaternary alloy plating solution comprises the following components: 20-40g / L of nickel chloride, 10-20g / L of copper sulfate, 0.5-10 g / L of lanthanum sulfate, 0.5-3 g / L of sodium borohydride, 40-50g / L of potassium sodium tartrate, 15-30g / L of ethylenediamine and 35-60g / L of sodium hydroxide. A method for chemically plating the glass fibers by using the Ni-Cu-La-B quaternary alloy plating solution comprises the following steps: using sodium borohydride as a reducing agent, adding the water-soluble lanthanum sulfate, and chemically plating the glass fibers by using the Ni-Cu-La-B quaternary alloy plating solution under the conditions of strong base and low temperature; plating layers are Ni-Cu-La-B alloy plating layers, wherein the content of boron is low (only about 0.5-5wt%), the content of nickel in the plating layers is high; the plating layers have good bonding force, electrical conductivity and wear resistance. Through observation with microscopes, the plating layers of the Ni-Cu-La-B quaternary alloy plated glass fibers prepared by using the method are compact; testing with an X-ray energy dispersive spectrometer shows that the surface chemistry components of the Ni-Cu-La-B quaternary alloy plated glass fibers contain 15-50wt% of Ni, 2-15wt% of Cu, 0.5-5wt% of La and 0.5-5wt% of B. The electric conducting glass fibers can be applied to the special fields of electromagnetic wave shielding, microwave absorption, invisibility, anti-static electricity and the like.