A scheme for a soft x-ray laser utilizing electron pickup in an excited state of a multiply ionized species is presented. Using a current source of 10 to 20 mA, we estimate a yield of ≈ 106x-ray quanta per pulse. The present scheme seems to be well within the realm of modern technology. © 1973.
Scully, M. O., Louisell, W. H., & McKnight, W. B. (1973). A soft X-ray laser utilizing charge exchange. Optics Communications, 9(3), 246–248. https://doi.org/10.1016/0030-4018(73)90297-6