NCRP Recommendations for Ending Routine Gonadal …

This corresponded to estimated gonadal doses for unshielded patients of 10 to 11 mGy and 4 mGy for adult males and females, respectively (Somasundaram et al. 2020). Three developments since the 1950s have ... SPR is low near the surface of the body where the x-ray beam enters (e.g., at the expected location of the tes-tes), intermediate at the ...

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Technetium - 99m - University of Michigan

Exposure rates from unshielded 1.0 millicurie isotropic point source of Tc-99m: DISTANCE MILLIREM/HOUR 1.0 cm 760.00 10.00 cm 7.60 100.00 cm 0.076 6.0 in 3.270 Exposure Prevention ... • Monitor for removable surface contamination by smearing, swiping, swabbing, or wipe-testing where Tc-99m is used. Count smears or swabs in a liquid ...

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Laboratory Ultraviolet Light Sources - Princeton University

UV levels in the actinic region for unshielded transilluminators. In conclusion, the authors stated: ... to shield the exposed surface of the transilluminator. No UV is detectable with the shield in place. A measurement with a UV radiometer indicated an exposure level of 200 µW/cm: 2

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H-MTD® High-Speed Modular Twisted-Pair Data Products

including Shielded Twisted Pair, Unshielded Twisted Pair and new High-Performance cables. ... 0M Surface mount device xx Blank cable group: 1 Crimp 4 PCB mounting: Successive number 1 Straight connector: 2 Right angle connector K Female jack: S Male plug W Tools: Z Plastic housings and accessories

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Heat Dissipation in Electrical Enclosures | Fan/Blower …

Enclosure Surface Area The physical size of the enclosure is the primary factor in determining its ability to dissipate heat. The larger the surface area of the enclosure, the lower the temperature rise due to the heat generated within it. To determine the surface area of an enclosure in square feet, use the following equation:

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Technical Explanation for Proximity Sensors - Omron

The distance from the reference position (reference surface) to the measured operation (rese t) when the standard sensing object is moved by the specified method. Set Distance The distance from the reference surface that allows stable use, including the effects of temperature and voltage, to the (standard) sensing object transit position. This is

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Cytation™ 5 - University of Wisconsin–Madison

Operate the instrument on a level, stable surface away from excessive humidity. Bright sunlight or strong incandescent light can reduce the linear performance range of the instrument. Measurement values may be affected by extraneous particles (such as dust) in the microplate wells. A clean work area is necessary to ensure accurate readings.

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Chapter 5 External Dose Calculations H-117 – Introductory …

Review ¾List the three methods of reducing your exposure/dose: ¾Intensity decreases _____ with the square of the distance from the source due only to the change in _____. H-117 – Introductory Health Physics Slide 31 ¾Using the inverse square law, calculate the dose rate at 4 feet away from a point source if the dose rate is originally 1000 R/hr at 2 feet.