Military roentgenology / War Department.

Date:
[1944]
Catalogue details

Licence: Public Domain Mark

Credit: Military roentgenology / War Department. Source: Wellcome Collection.

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    where A (lambda) is minimum wavelength and kvp is the maximum value of kilovoltage ap- plied to the roentgen ray tube. The maximum wavelength * * * the minimum wave- length. 56. MEASURE OF ROENTGEN RAYS. a. Quan- titative. * * * * * (3) Lonization. * xk * * * (c) Secondary chambers. The standard chamber, * * * and easily carried. They are compared with the standard chamber in order to insure accuracy of their response. Their scalesare * * * unit of time. * eo * * * 142, RECORDS. The record system * * * person taking them. Number of films, date, and the place to which the films are taken should be included. Records of data * * * in the future. 182. SALIVARY GLANDS. These include three * * * formation of saliva. * * * * ** b. Submaxillary gland is * * * of the mandible. By means of Wharton’s duct, it con- veys secretion into the mouth opening through a small orifice at the side of the frenulum of the tongue. * * * * x 252. CALCULATING FOR AN EXPOSURE. It may be * * *. perhaps to 72. ‘This can be accomplished by increasing the milliampere- second value tenfold—that is, because of drop- ping 28 kvp. (See par. 136.) * * * more ‘ideal factors. Page 144, the descriptive matter under figure “119 should be transferred to page 146, under ‘figure 120; page 146, the descriptive matter under figure 120 should be transferred to page 144, under figure 119. Figure 168, page 242, on the anatomical sketch, change “vertebrae” to “vertebra.” Figure 169, page 244, on the anatomical sketch, change “lamboidal” to “lambdoidal.” Figure 172, page 250, position description is changed to read: POSITION: Patient supine, level, upper border of thyroid cartilage to midlength of film; head and upper neck rotated (to side under study) 2 45° and thorax about 10-20°. Figure 187, page 280, focal spot description is changed to read: FOCAL SPOT: Align principal ray. horizontally through mental symphysis. Figure 194, page 294, precaution description is changed to read: PRECAUTION: Principal ray perpendicular to midsagittal plane and to center of film. F ilm) in close apposition and supported beneath nose by hand. Figure 225, page 356, title of description is changed to read: LARGE BOWEL, POS- TERO-ANTERIOR (post evacuation). Page 357, title of description is changed to read: LARGE BOWEL, POSTERO-ANTERIOR (double contrast enema). 260. PHOTOROENTGENOGRAPHY. Photoroent- genography (photofluorography) is * * * H. U. per hour. (See par. 34g.) The film is * * * required for them. 271. REORIENTING DEVICE. x * * * * c. Application. There: are four * * * may be applied: (1) Simplest combination using caliper alone. The patientis * * *. (See fig. 252.) ¥ * * * * 275. CALCULATION PROCEDURE AND DEVELOP- MENT OF INDICATING CHART. a. On the first of the two exposures contained on the roent- genogram the ball and cone should be superim- posed, while on the second exposure the ball should be projected to a relatively high level in relation to the cone (that is, with caudal shift of the tube). The entire orbit * * * (fig. 262), as follows: * * * * bd Page 403, column 2, last line, the formula is changed to read: ig ete x15 Cc On figure 263, page 404, change triangle “xX OP” to “XQP.” Table V, page 424, interchange the “Step Up”: and “Step Down” designations for trans- formers. Appendix VII (as added by C 1), page 4, change the term “PHATOM” to “PHANTOM.” [AG 300.7 (11 Jun 45) ] AGO 752A
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