[en] This bibliography of literature relevant to the environmental impact assessment process is essentially a list of material dealing with the environmental impact assessment process held by Griffith University Library. The list is however well supplemented with citations of material not held in the Griffith University Library. Some economic and social impact assessment citations have been included in the bibliography, as the the environmental impact assessment concept has been interpreted very broadly. The citations are arranged according to broad subject areas, such as methodology, critical reviews, social impacts etc. Citations in each of these subject areas, which are listed in the table of contents, are identified by prefixes which are given in parentheses before the subjects headings. Within each subject area the citations are arragend in alphabetic author sequence

[en] The development of an X-Band triaxial input system for the high-power gyroklystron amplifier experiment at the University of Maryland, College Park, is proposed and discussed. In order to obtain high mode purity of a TE₀₁₁ mode in an overmoded coaxial input cavity while maintaining high coupling efficiency, a coaxial dual-cavity input structure with an outer TE₄₁₁ mode and an inner TE₀₁₁ mode coaxial cavity has been designed to obtain a low Q and to avoid mode distortion due to the coupling aperture between the input waveguide and the input cavity. A loaded quality factor of 73 and a resonant frequency of 8.570 GHz with high mode purity have been obtained for the inner TE₀₁₁ mode coaxial cavity. The experimental results are in good agreement with the theoretical designs. The details of the design methods and cold-test results of the X-Band triaxial input system are presented in this paper

[en] Gyroklystrons are possible candidates for the RF sources in future linear colliders. A two-cavity and a three-cavity X-band gyroklystrons have been designed, built, and tested on the new 100 MW test bed at the University of Maryland. The theoretical design of the three-cavity X-band gyroklystron called for a peak power of 96 MW at an efficiency near 40% at a frequency of 8.568 GHz. In experiments, peak output power in the range of 75--85 MW at a frequency of 8.6 GHz has been measured with the three-cavity gyroklystron tube. The three-cavity tube was operated at electron beam voltage and current of 470 kV and 500 A, respectively. The efficiency is approximately 32% and the gain is approximately 30 dB. The pulse width of the output power signal is 1.7 micros (full width at half maximum), while pulse repetition rate was limited to 2 Hz in this proof-of-principle study. This paper details the design, performance, and diagnostics of these two X-band gyroklystrons operating at the fundamental cyclotron resonance