RPR-47

Workload W

X-ray room workload.

Reading speed

GoverningWorkload W

Governing equation

W=N\\, mA\\, min

$N \in \left[1, 200\right]$

where

N: N (1/wk)
mAmin: mAmin (mA·min)
W: Workload W (mA·min/wk)

The figure, part by part

Each numbered marker wears the color of its card. Hover a card to light the marker. Tap a marker to jump to that card. The slider walks a red point along the curve; Animate drawing traces it like a pen.

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①

Governing law — red

W=N\\, mA\\, min

$N \in \left[1, 200\right]$

$N = 1$ $W = 20$

Along the curve

②

Domain of the variable — blue

N_{\min} = 1,\quad N_{\max} = 200

$N \in \left[1, 200\right]$

$N = 1$ $N = 1$

Along the curve

③

Response curve — green

W=N\\, mA\\, min

$N \in \left[1, 200\right]$

$N = 1$ $W = 20$

Along the curve

④

Rate of change — amber

\frac{\mathrm{d}W}{\mathrm{d}N}

$N \in \left[1, 200\right]$

$N = 2.252$ $W^{\prime} = 20$

Along the curve

Lecture brief

Historical brief

Inverse-square, half-value layer, ICRP weighting and ALARA are the protection craft since the 1920s commissions. The lab computes transmission, equivalent dose and a shielding snapshot. This sheet (RPR-47 — Workload W) is the form associated with Workload W. Working symbols: $N$ , $mAmin$ $\rightarrow$ $W$ . X-ray room workload. Pedagogical SI sheet with a live model and a swept parameter.

Purpose

Purpose: compute

W

from

N

mAmin

in Radiation protection via

W=N\\, mA\\, min

X-ray room workload. Use it when a real radiation protection question must be answered in SI before a code check.

Live realistic example

In symbols

Live case. Given

N = 40.000\,\mathrm{1/wk}

mAmin = 20.000\,\mathrm{mA·min}

, the governing relation

W=N\\, mA\\, min

yields

W = 800.000\,\mathrm{mA·min/wk}

. One governing identity, SI units, a single sweep on the sheet. Move a slider: the numbers are this situation, not a canned story.

Calculator

Inputs

N N40 1/wkmAmin mAmin20 mA·min

Outputs

Workload W W800.000 mA·min/wk

Reading speed

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Narration of this film

One governing identity, SI units, a single sweep on the sheet.

X-ray room workload. Pedagogical SI sheet with a live model and a swept parameter.

Reading speed

Watch on YouTube