Becquerel ray ECG EEG EKG Grenz ray Photostat Roentgen ray X radiation X-ray movie Xerox actinic ray actinism alpha radiation alpha ray anode ray atomic beam atomic ray beam beam of light beta radiation beta ray blood bank calotype canal ray capture on film cathode ray charity ward chest X-ray clinic consultation room cosmic radiation cosmic ray cosmic ray bombardment delivery room dispensary electrocardiogram electrocorticogram electroencephalogram electroencephalograph electromyogram electron emission emergency encephalogram encephalograph examining room fever ward film gamma radiation gamma ray gleam hospital room infrared ray infraroentgen ray intensive care invisible radiation irradiate isolation labor room laboratory leam maternity ward microfilm mug nuclear rays nursery operating room orthodiagram pan patch pencil pharmacy photofluorogram photofluorograph photogram photograph photomap photon positive ray prison ward private room pyelogram radiation radiogram radiograph radiorays radiumize ray ray of light recovery room ribbon ribbon of light roentgenize roentgenogram roentgenograph scotograph semi-private room shadowgram shadowgraph shoot skiagram skiagraph snap snapshoot snapshot solar rays streak stream stream of light streamer surgery take a photograph talbotype therapy treatment room ultraviolet ray violet ray ward