. whe 2 allo weld sethenenngnrs OP re res 8 vee bets aalipanhnnncernabentrerenay . ~ aneasure due to @xperience gained in. “per. 2 Sandstone, as well as to the fact the’ ae ‘or uced 2 shee. sirnilas (> the form rong Eye mol: &, j ments in instruments resulted in fever put lems of repair and maintenance. EYLT. 28 rma “ic. aneitive film in the three-iilm iecee, and film No. 2 represents the next mosi sensitive. The No. 3 film was read so seldom that ne space was pro- 2.10 DOSAGE RECORDS The section charged with the developing and reading of the film badges consisted of five men, an adequate number. Four men could handle this job about as efficiently and without too much difficulty under the same circumstance encountered at Operation Greenhouse. The recording section should have at least two clerks plus a man to handle the issuance and collection of the films, This latter man could have additional duties in an adjoining section, such as supply, though he must be nearby at all times. The officer in charge of the photodosimetry section would do well to study a similar section in the United States prior to arrival at the test site. The forms suggested below are the result of trial and error, and undoubtedly better and more efficient ones can be devised. The photographers reported the film badge dosimetry readings by film badge number on a simple lined sheet with columnsfor the readings. vided for its readings. The coiumn headed gamma was used to record the actual densitometer reading obtained on the lead shielded portion of the film. The “true” reading is the actual reading from which the basic density reading of the film has been subtracted. The first column headed mris the true densitometer reading translated to milliroentgens from a calibration curve made the same day. The beta column is the actual densitometer reading taken from the unshielded portion of the film, and the second column headed mr represents a figure taken from a calibration curve calculated from the same unshielded porticn of the film. These columns are not all essential, but they did prove useful when it was necessary to refer to specific film badges. The form used in the issuance and collection of film badges was essentially as shown here as Example B. This form was used both in the file book retained at the issuing counter and by the person EXAMPLE A Film No. 1 Badge No. Gamma True mr Beta Film No. 2 True|mr Gamma True mr Beta True mr EXAMPLE B Date Issued Issued to Film Badge Number Name of Person Wearing Badge Dosimeter Reading Date Rec’d Film Badge Reading : Check