X-Ray Production and Target Interactions Crossword Puzzle

QUESTIONS LIST: thorium: sometimes added to tungsten in filament, space charge effect: with the buildup of electrons by the filament, the electrons' negative charges begin to oppose the emission of additional electrons, positive: charge of anode; pollyanna encourages us to be more _ about life, thermionic emission: the process of boiling off electrons from the filament using heat, vacuum tube: removes all air so gases do not interfere with x-ray production, nickel: material used in focusing cup; 5 cent piece, bremsstrahlung: a target interaction that occurs when projectile electrons are slowed down or stopped in the anode, molybdenum: material used in majority of anode and focusing cup, focusing cup: houses the filaments in the cathode; creates electron stream, filament: source of electrons; part of the cathode; two sizes, cathode: negatively charged end of x-ray tube, electrons: negatively charged part of an atom, anode: positively charged end of x-ray tube, tungsten: main material used in filament and target, characteristic: a target interaction that occurs when the projectile electron passes near an orbital electron, ejects it from its orbit, and causes a cascade, negative: charge of cathode; people who are catty talk about others in a _ way, rhenium: combined with tungsten to create target on anode.