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DAP unit converter

With this converter, the dose area product (DAP) can be converted into corresponding values expressed by other units. Use other tool for DAP to effective dose (mSv) conversion.

Note: use point in stead of comma as a decimal separator.

DAP unit converter

Type a value in the DAP field to convert to DAP in other units:




Simple example with respect to unit conversions:
When converting from Gy.cm2 to µGy.m2 the following reasoning can be followed: 1 Gy = 1,000,000 (1 million) µGy; 1 cm2 = 0.0001 m2; this means that 1 Gy.cm2 = 1,000,000*0.0001 µGy.m2 = 100 µGy.m2.

Note that some conversions won't result in any change, for example: 1 cGy*cm2 = 1 µGy*m2.

DAP values can be translated into effective dose levels by multiplication using specific conversion factors. For this purpose it is important that DAP value and conversion factor match in terms of their units. The above DAP calculator can be used to obtain the desired unit with regard to the DAP value. 

Last but not least: practically DAP converter = KAP converter, see wikipedia.

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Comments

  1. Hi, any ideas how to convert mGym2 to cGycm2?

    ReplyDelete
    Replies
    1. Thank you for your suggestion. This option has now been added to the converter

      Delete
  2. Hi, any ideas how to convert mGym2 to mSv?

    ReplyDelete
    Replies
    1. Thank you for your suggestion. See our DAP to mSv converter tot calculate effective dose. Work in progress.

      Delete
  3. Great. How did you guys developed this converter? I mean with which technology? Is it just JavaScript? I want to build one for my website too.

    ReplyDelete
  4. Hi, any ideas how to convert uGy/s to cGy/m

    ReplyDelete
    Replies
    1. Thanks for your suggestion. We added this converter: https://www.dosewizard.com/2022/04/dose-rate-converter.html

      Delete
  5. Are 288 uGy*m2 dangerous for the fertility or gonads in general, either in a really minimal way?

    ReplyDelete
  6. Hello! Does the conversion differ for DAP obtained from fluoroscopy vs. Cone Beam CT? If using a CT for a procedure, should we use DLP instead of DAP? Thanks in advance!

    ReplyDelete

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Dose area product (DAP)

Dose Area Product (DAP), is a multiplication of the dose and the area exposed, often expressed in Gy.cm2.  Modern x-ray systems are fitted with a DAP meter, able to record accumulated DAP during an  examination. A schematic of the imaging chain with DAP meter is given below. How is DAP measured? An ionization chamber larger than the area of the x-ray beam is placed just beyond the xray collimators. The DAP ionization chamber must intercept the entire x-ray field for an accurate reading. The DAP-value is depending on x-ray technique factors (kVp, mA, filtration) and time of the procedure and the area of the x-ray field. For example, a 5 x 5 cm x-ray field with an entrance dose of 1 mGy will yield a 25 mGy.cm2 DAP value. If the field is increased to 10 x 10 cm, with the same entrance dose of 1 mGy the DAP increases to 100 mGy-cm2, which is 4 times the DAP for the 5 x 5 cm field. Why DAP? Dose-area product is relatively easy to measure. DAP has been shown to correlate well ...

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DLP unit converter

With this converter, the dose length product (DLP) can be converted into corresponding values expressed by other units. Note: use point in stead of comma as a decimal separator. Input value   from     mGy.cm cGy.cm dGy.cm Gy.cm uGy.m mGy.m cGy.m dGy.m Gy.m to     mGy.cm cGy.cm dGy.cm Gy.cm uGy.m mGy.m cGy.m dGy.m Gy.m

Effective dose calculator - CTA-chest

This converter converts DLP in mSv effective dose.  Note 1: use point in stead of comma as a decimal separator.  Note 2: currently only for CTA-chest and a rough estimate. Input value (DLP) mGy.cm cGy.cm dGy.cm Gy.cm Gy.m Result Effective dose mSv

Dose rate converter

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DAP in DICOM header

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DLP to mSv converter

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