[PDF] 2D21.pdf

2d 21 2D21. THYRATRON. OPERATIONAL RANGE. OF CRITICAL GRID VOLTAGE. TYPE 2D21 SHIELD. The 2D21 thyratron is, as usual, a gas filled valve, in this case the gas at low pressure is xenon. This example is of tetrode construction and was desned

2d 14, In this work, we introduce helical chirality into 2D COFs using confurationally stable enantiopure and racemic [5]helicenes as linkers in.