Yang Mingke. Low-power Ultra-soft X-ray Source and Radiation Characteristics[J]. Editorial Office of Optics and Precision Engineering, 1987,(3): 25-34DOI:
Low-power Ultra-soft X-ray Source and Radiation Characteristics
In this paper the structure and the operating principle of a lowpower ultra-soft X-ray source are described and the measurement results of the source are shown. The choice of the operating voltage is discussed. Eight targets made of different material are mounted on a carrying wheel which may be turned and are bombarded in turn by the electrons with high-velocity
and so the characteristic line spectra of eight kinds of elements are obtained. By using this X-ray source we have obtained the K
characteristic line spectra of aluminum(8.34Å)
carbon (44.7Å)and boron(67.6Å). The performances of this X-ray source are as follows: (1)The operating wavelength region-10-67 a. (2)The target power: 12 mW. (3)The target voltage: 500-4000V. (4)The radiation intensity of this source is variable in the range of 10-10
6
photons/second/steradian. The electron(primary)excitation mode is adopted in this source. It doesn't require any cooling because of the low power(12mW).