这个谱仪诞生于UC BERKELEY,这里是两篇相关文章:
M.C. Hettrick and S. Bowyer, "Variable line-space gratings: new designs for use in grazing incidence spectrometers," Appl. Opt., vol. 22, p. 3921 (1983).
M.C. Hettrick, "Aberrations of varied line-space gratings in converging light beams," Appl. Opt., vol. 23, p. 3221 (1984).