CHAPTER II: ILLINOIS EMERGENCY MANAGEMENT AGENCY
SUBCHAPTER b: RADIATION PROTECTION
PART 315 STANDARDS FOR PROTECTION AGAINST LASER RADIATION
SECTION 315.TABLE B MPE FOR SKIN EXPOSURE
Section 315.TABLE B MPE for Skin Exposure
Ultraviolet
|
Wavelength (μm) |
Exposure Duration, ts |
MPE |
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(J cm-2) |
(W cm-2) |
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0.180 to 0.302 |
10-9 to 3 x 104 |
3 x 10-3 |
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0.303 |
10-9 to 3 x 104 |
4 x 10-3 |
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0.304 |
10-9 to 3 x 104 |
6 x 10-3 |
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0.305 |
10-9 to 3 x 104 |
1.0 x 10-2 |
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0.306 |
10-9 to 3 x 104 |
1.6 x 10-2 |
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0.307 |
10-9 to 3 x 104 |
2.5 x 10-2 |
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0.308 |
10-9 to 3 x 104 |
4.0 x 10-2 |
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0.309 |
10-9 to 3 x 104 |
6.3 x 10-2 |
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0.310 |
10-9 to 3 x 104 |
1.0 x 10-1 |
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0.311 |
10-9 to 3 x 104 |
1.6 x 10-1 |
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0.312 |
10-9 to 3 x 104 |
2.5 x 10-1 |
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0.313 |
10-9 to 3 x 104 |
4.0 x 10-1 |
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0.314 |
10-9 to 3 x 104 |
6.3 x 10-1 |
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0.315 to 0.400 |
10-9 to 10 |
0.56 t¼ |
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|
0.315 to 0.400 |
10 x 103 |
1 |
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0.315 to 0.400 |
103 to 3 x 104 |
|
1 x 10-3 |
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NOTES: |
1. |
To calculate MPE, use the J cm-2 value shown or 0.56 t¼, whichever is lower. |
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2. |
3.5 mm limiting aperture (see Section 315.Table D). |
Visible and Near Infrared
|
Wavelength (μm) |
Exposure Duration, ts |
MPE |
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(J cm-2) |
(W cm-2) |
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0.400 to 1.400 |
10-9 to 10-7 |
2CA x 10-2 |
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|
10-7 to 10 |
1.1CA t¼ |
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|
10 to 3 x 104 |
|
0.2CA |
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NOTE: |
3.5 mm limiting aperture (see Section 315.Table D). |
Far Infrared
|
Wavelength (μm) |
Exposure Duration, ts |
MPE |
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|
(J cm-2) |
(W cm-2) |
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|
1.400 to 103 |
10-9 to 10-7 |
10-2 |
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|
10-7 to 10 |
0.56 t¼ |
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|
>10 |
|
0.1 |
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NOTE: |
See Section 315.Table D for limiting apertures. |
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GENERAL NOTE: |
1. |
For purposes of this Table, the following abbreviations are used: |
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μm |
= |
micrometers |
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ts |
= |
time in seconds |
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J |
= |
joules |
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W |
= |
watts |
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cm |
= |
centimeters |
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mm |
= |
millimeter |
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