Clinical Radiation Exposure (RAPs)

06Sep07

    RAP’s = Roentgen Area Product. Product of skin exposure (R) times exposure area (cm2). California Average Background Radiation per year = 1,836 RAP’s.

    Clinical exposure for Gendex 1000 UNIT set at 70 kVp, 15 mA using Precision Collimators for Periapicals using Bitewing Tabs for Bitewings, using Kodak Insight film.

    Use these numbers to update the patient’s Radiographic Exposure Record.

     

    ADULT PERIAPICALS

    Time in Impulses

    RAPs w/ Collimator

    RAPs w/o Collimator

    Incisors

    12

    1.2

    2.8

    Canine-Premolar

    15

    1.3

    3.2

    Molar

    18

    1.3

    3.8

    Occlusal

    21

    1.6

    3.8

     

    ADULT BITEWINGS

    Time in Impulses

    RAPs w/ Collimator

    RAPs w/o Collimator

    Premolar

    15

    3.2

    Molar

    18

    3.8

     

    EDENTULOUS PERAPICALS

    Time in Impulses

    RAPs w/ Collimator

    RAPs w/o Collimator

    Incisors

    12

    1.2

    2.8

    Canine-Premolar

    12

    1.2

    2.8

    Molar

    15

    1.3

    3.2

    Occlusal

    18

    3.8

     

    CHILDREN

    Time in Impulses

    RAPs w/ Collimator

    RAPs w/ Collimator

    Anterior

    12

    0.6

    2.8

    Posterior

    12

    0.6

    2.8

    Bitewing

    12

    0.6

    2.8

    Occlusal

    15

    0.7

    3.2

     

    MULTIPLE PROJECTIONS

    Time in Impulses

    RAPs w/ Collimator

    RAPs w/o Collimator

    ADULT 21 FILM SURVEY

    35.2

    67.

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