VOXES, a New High-resolution X-ray Spectrometer for Low Yield Measurements with Diffused Sources

摘要

The VOXES project’s goal is to realize the first prototype of a highresolutionand high-precision X-ray spectrometer for diffused sources, usingHighly Annealed Pyrolitic Graphite (HAPG) crystals combined with precisionposition detectors. The aim is to deliver a cost-effective and easy tohandle system having an energy resolution at the level of few eV for X-rayenergies from about 2 keV up to tens of keV. There are many applicationsof the proposed spectrometer, going from fundamental physics (precisionmeasurements of exotic atoms at DA NE collider and J-PARC, precisionmeasurement of the K?? mass solving the existing puzzle, quantum mechanicstests) to synchrotron radiation and applications (X-FEL), astronomy,medicine and industry. Here, the basic concept of such a spectrometer andthe first results from a measurement of the characteristic Cu K 1 and K 2X-ray lines are presented.