Determination of Instruction Times Necessary to Limit Close Contact with Others
| Instruction no.† | Calculated dose at release* (D∞) (mSv) | ||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1.00 | 1.25 | 1.50 | 1.75 | 2.00 | 2.25 | 2.50 | 2.75 | 3.00 | 3.25 | 3.50 | 3.75 | 4.00 | 4.25 | 4.50 | 4.75 | 5.00 | |
| 1 | .019 | .030 | .040 | .048 | .056 | .063 | .070 | .076 | .083 | .089 | .095 | .102 | .108 | .115 | .121 | .129 | .137 |
| 2 | .000 | .000 | .000 | .000 | .000 | .000 | .000 | .000 | .001 | .005 | .008 | .011 | .013 | .016 | .018 | .020 | .023 |
| 3 | .041 | .050 | .058 | .064 | .070 | .075 | .079 | .083 | .087 | .090 | .093 | .096 | .099 | .101 | .104 | .106 | .108 |
| 4 | .000 | .009 | .017 | .023 | .029 | .034 | .038 | .042 | .046 | .049 | .052 | .055 | .058 | .060 | .063 | .065 | .067 |
↵* Calculated dose for individual spending 6 h/d at 1 m from patient (Eq. 3).
↵† Instructions: 1. Sleep in separate bed (at least 2-m separation). 2. Do not take a long trip (≤4 h) sitting near others (e.g., car, train, airplane, bus). 3. Stay at least 2 m from children and pregnant women (calculated using dose of 1 mSv); if no direct contact, use instruction values in row 4. 4. Minimize time spent in close contact with others and delay return to work (calculated using dose of 1 mSv).
Values are days of avoidance per hour total-body residence time (15). Multiply values in appropriate column by patient’s residence time (h) to obtain days required for each instruction to remain in place.