ML19343C201

Technical Basis Spreadsheet

ML19343C201
Person / Time
Issue date:	12/09/2019
From:	Irene Wu NRC/NMSS/DMSST/MSEB
To:
wu i/
Shared Package
ML19343C192	List: ML19343C195 ML19343C196 ML19343C198 ML19343C199 ML19343C200 ML19343C201
References
Download: ML19343C201 (5)

Text

Default 2 week min hr @ 1ft hr @ 3 ft 0.45 0.4 0.3 0.2 0.1 0.05 Common 0.25 4 2 2 2 2 2 2 Extended Close 4 4 5 5 3 2 2 2 Extended Intermediate 0.25 12 2 2 2 2 2 2 Prolonged Both 11 9 9 8 7 5 3 2 No default minimum hr @ 1ft hr @ 3 ft 0.45 0.4 0.3 0.2 0.1 0.05 Common 0.25 4 0 0 0 0 0 0 Extended Close 4 4 5 5 3 2 0 0 Extended Intermediate 0.25 12 2 1 0 0 0 0 Prolonged Both 11 9 9 8 7 5 3 0

Fixed parameters Most Common Scenario T 1/2 (d) 13.6 lambda (d) 0.0509667 Infinite (20 wk) 3 ft occupancy (hr/d) 4 Infinite (20 wk) 1 ft occupancy (hr/d) 0.25 Infinite (20 wk) 6 in occupancy ( hr/d) 0.0166667 3 ft (m) 0.9144 Variable parameters Doserate mR/hr @ 1 m 0.45 0.4 0.3 0.2 0.1 0.05 Doserate mR/hr @ 3 ft isotropic average 0.39 0.34 0.26 0.17 0.09 0.04 Doserate mR/hr @ 1 ft isotropic average 3.33 2.96 2.22 1.48 0.74 0.37 Instruction duration (d) 0 0 0 0 0 0 Instruction period max minutes at 3 ft 240 240 240 240 240 240 Instruction period max minutes at 1 ft 15 15 15 15 15 15 Instruction period max minutes at 6 in 1 1 1 1 1 1 Infinite 3 ft dose 30.4 27.0 20.3 13.5 6.8 3.4 Infinite 1 ft dose 16.3 14.5 10.9 7.3 3.6 1.8 Infinite 6 in dose 4.4 3.9 2.9 1.9 1.0 0.5 Infinite sum 51.1 45.4 34.1 22.7 11.4 5.7 Minutes to 2 mrad @ 3 ft 309.7 348.4 464.5 696.8 1393.5 2787.1 Minutes to 2 mrad @ 1 ft 36.0 40.5 54.0 81.0 162.0 324.1 Minutes to 2 mrad @ 6 in 9.0 10.1 13.5 20.3 40.5 81.0 Instruction period 3 ft dose 0.0 0.0 0.0 0.0 0.0 0.0 Instruction period 1 ft dose 0.0 0.0 0.0 0.0 0.0 0.0 Instruction period 6 in dose 0.0 0.0 0.0 0.0 0.0 0.0 Instruction end 3 ft dose 30.4 27.0 20.3 13.5 6.8 3.4 Instruction end 1 ft dose 16.3 14.5 10.9 7.3 3.6 1.8 Instruction end 6 in dose 4.4 3.9 2.9 1.9 1.0 0.5 Total Dose 51.1 45.4 34.1 22.7 11.4 5.7 60 50 40 mrad 30 20 10 0

0.45 0.4 0.3 0.2 0.1 0.05 Instruction period 3 ft dose Instruction period 1 ft dose Instruction period 6 in dose Instruction end 3 ft dose Instruction end 1 ft dose Instruction end 6 in dose

Fixed parameters Extended close contact scenario T 1/2 (d) 13.6 lambda (d) 0.0509667 Infinite (20 wk) 3 ft occupancy (hr/d) 4 Infinite (20 wk) 1 ft occupancy (hr/d) 4 Infinite (20 wk) 6 in occupancy ( hr/d) 0.0166667 3 ft (m) 0.9144 Variable parameters Doserate mR/hr @ 1 m 0.45 0.4 0.3 0.2 0.1 0.05 Doserate mR/hr @ 3 ft isotropic average 0.39 0.34 0.26 0.17 0.09 0.04 Doserate mR/hr @ 1 ft isotropic average 3.33 2.96 2.22 1.48 0.74 0.37 Instruction duration (d) 35 35 21 14 0 0 Instruction period max minutes at 3 ft 240 240 240 240 240 240 Instruction period max minutes at 1 ft 15 15 15 15 15 15 Instruction period max minutes at 6 in 1 1 1 1 1 1 Infinite 3 ft dose 30.4 27.0 20.3 13.5 6.8 3.4 Infinite 1 ft dose 261.5 232.5 174.4 116.2 58.1 29.1 Infinite 6 in dose 4.4 3.9 2.9 1.9 1.0 0.5 Infinite sum 296.3 263.4 197.5 131.7 65.8 32.9 Minutes to 2 mrad @ 3 ft 309.7 348.4 464.5 696.8 1393.5 2787.1 Minutes to 2 mrad @ 1 ft 36.0 40.5 54.0 81.0 162.0 324.1 Minutes to 2 mrad @ 6 in 9.0 10.1 13.5 20.3 40.5 81.0 Instruction period 3 ft dose 25.3 22.5 13.3 6.9 0.0 0.0 Instruction period 1 ft dose 13.6 12.1 7.2 3.7 0.0 0.0 Instruction period 6 in dose 3.6 3.2 1.9 1.0 0.0 0.0 Instruction end 3 ft dose 5.1 4.5 7.0 6.6 6.8 3.4 Instruction end 1 ft dose 43.9 39.1 59.8 56.9 58.1 29.1 Instruction end 6 in dose 0.7 0.7 1.0 0.9 1.0 0.5 Total Dose 92.3 82.0 90.1 76.1 65.8 32.9 100 90 80 70 60 mrad 50 40 30 20 10 0

0.45 0.4 0.3 0.2 0.1 0.05 Instruction period 3 ft dose Instruction period 1 ft dose Instruction period 6 in dose Instruction end 3 ft dose Instruction end 1 ft dose Instruction end 6 in dose

Fixed parameters Extended moderate contact scenario T 1/2 (d) 13.6 lambda (d) 0.0509667 Infinite (20 wk) 3 ft occupancy (hr/d) 12 Infinite (20 wk) 1 ft occupancy (hr/d) 0.25 Infinite (20 wk) 6 in occupancy ( hr/d) 0.0166667 3 ft (m) 0.9144 Variable parameters Doserate mR/hr @ 1 m 0.45 0.4 0.3 0.2 0.1 0.05 Doserate mR/hr @ 3 ft isotropic average 0.39 0.34 0.26 0.17 0.09 0.04 Doserate mR/hr @ 1 ft isotropic average 3.33 2.96 2.22 1.48 0.74 0.37 Instruction duration (d) 14 7 0 0 0 0 Instruction period max minutes at 3 ft 240 240 240 240 240 240 Instruction period max minutes at 1 ft 15 15 15 15 15 15 Instruction period max minutes at 6 in 1 1 1 1 1 1 Infinite 3 ft dose 91.2 81.1 60.8 40.5 20.3 10.1 Infinite 1 ft dose 16.3 14.5 10.9 7.3 3.6 1.8 Infinite 6 in dose 4.4 3.9 2.9 1.9 1.0 0.5 Infinite sum 111.9 99.5 74.6 49.8 24.9 12.4 Minutes to 2 mrad @ 3 ft 309.7 348.4 464.5 696.8 1393.5 2787.1 Minutes to 2 mrad @ 1 ft 36.0 40.5 54.0 81.0 162.0 324.1 Minutes to 2 mrad @ 6 in 9.0 10.1 13.5 20.3 40.5 81.0 Instruction period 3 ft dose 15.5 8.1 0.0 0.0 0.0 0.0 Instruction period 1 ft dose 8.3 4.4 0.0 0.0 0.0 0.0 Instruction period 6 in dose 2.2 1.2 0.0 0.0 0.0 0.0 Instruction end 3 ft dose 44.7 56.8 60.8 40.5 20.3 10.1 Instruction end 1 ft dose 8.0 10.2 10.9 7.3 3.6 1.8 Instruction end 6 in dose 2.1 2.7 2.9 1.9 1.0 0.5 Total Dose 80.9 83.3 74.6 49.8 24.9 12.4 90 80 70 60 50 mrad 40 30 20 10 0

0.45 0.4 0.3 0.2 0.1 0.05 Instruction period 3 ft dose Instruction period 1 ft dose Instruction period 6 in dose Instruction end 3 ft dose Instruction end 1 ft dose Instruction end 6 in dose

Fixed parameters Prolonged close/moderate contact scenario T 1/2 (d) 13.6 lambda (d) 0.0509667 Infinite (20 wk) 3 ft occupancy (hr/d) 9 Infinite (20 wk) 1 ft occupancy (hr/d) 11 Infinite (20 wk) 6 in occupancy ( hr/d) 0.0166667 3 ft (m) 0.9144 Variable parameters Doserate mR/hr @ 1 m 0.45 0.4 0.3 0.2 0.1 0.05 Doserate mR/hr @ 3 ft isotropic average 0.39 0.34 0.26 0.17 0.09 0.04 Doserate mR/hr @ 1 ft isotropic average 3.33 2.96 2.22 1.48 0.74 0.37 Instruction duration (d) 63 56 49 35 21 0 Instruction period max minutes at 3 ft 240 240 240 240 240 240 Instruction period max minutes at 1 ft 15 15 15 15 15 15 Instruction period max minutes at 6 in 1 1 1 1 1 1 Infinite 3 ft dose 68.4 60.8 45.6 30.4 15.2 7.6 Infinite 1 ft dose 719.2 639.3 479.5 319.6 159.8 79.9 Infinite 6 in dose 4.4 3.9 2.9 1.9 1.0 0.5 Infinite sum 792.0 704.0 528.0 352.0 176.0 88.0 Minutes to 2 mrad @ 3 ft 309.7 348.4 464.5 696.8 1393.5 2787.1 Minutes to 2 mrad @ 1 ft 36.0 40.5 54.0 81.0 162.0 324.1 Minutes to 2 mrad @ 6 in 9.0 10.1 13.5 20.3 40.5 81.0 Instruction period 3 ft dose 29.2 25.5 18.6 11.2 4.4 0.0 Instruction period 1 ft dose 15.7 13.7 10.0 6.0 2.4 0.0 Instruction period 6 in dose 4.2 3.7 2.7 1.6 0.6 0.0 Instruction end 3 ft dose 2.8 3.5 3.8 5.1 5.2 7.6 Instruction end 1 ft dose 29.0 36.8 39.5 53.7 54.8 79.9 Instruction end 6 in dose 0.2 0.2 0.2 0.3 0.3 0.5 Total Dose 81.0 83.4 74.7 78.0 67.8 88.0 100 90 80 70 60 mrad 50 40 30 20 10 0

0.45 0.4 0.3 0.2 0.1 0.05 Instruction period 3 ft dose Instruction period 1 ft dose Instruction period 6 in dose Instruction end 3 ft dose Instruction end 1 ft dose Instruction end 6 in dose