JPM SRO-A4 — Determine Personnel Exposure and Authorization for Entry
Admin | SRO | G2.3.4 (3.7)
Location: Classroom (Administrative)
Time-Critical: No
Alternate Path: No
Estimated Time: 20 minutes
Initial Conditions:
- Salem 1 is at 100% power.
- A Locked Valve surveillance IAW S1.OP-ST.CAN-0001, Primary Containment Valves Monthly, is scheduled to be performed on your shift.
- One of the valves to be verified is located in the Unit 1 Pipe Alley, Elevation 84 ft. Auxiliary Building.
- An entry into the Pipe Alley has been made since the last performance of this surveillance requiring this valve position to be verified.
Initiating Cue:
You are the Unit 1 CRS.
Using the provided Radiological Survey Map and procedures, determine the following:
1. What is the Radiological Posting for the area that the task will be performed?
2. What is the highest On Contact radiation dose rate?
3. What is the highest General Area dose rate?
4. What authorization is needed to enter this room?
5. Calculate the total personnel dose exposure. Assume the following:
- two (2) operators are needed to complete the task
- it will take 1 minute per operator to complete the task
- use the highest On Contact radiation dose rate as the General Area dose rate for the room
Time-Critical: No
Alternate Path: No
Estimated Time: 20 minutes
Initial Conditions:
- Salem 1 is at 100% power.
- A Locked Valve surveillance IAW S1.OP-ST.CAN-0001, Primary Containment Valves Monthly, is scheduled to be performed on your shift.
- One of the valves to be verified is located in the Unit 1 Pipe Alley, Elevation 84 ft. Auxiliary Building.
- An entry into the Pipe Alley has been made since the last performance of this surveillance requiring this valve position to be verified.
Initiating Cue:
You are the Unit 1 CRS.
Using the provided Radiological Survey Map and procedures, determine the following:
1. What is the Radiological Posting for the area that the task will be performed?
2. What is the highest On Contact radiation dose rate?
3. What is the highest General Area dose rate?
4. What authorization is needed to enter this room?
5. Calculate the total personnel dose exposure. Assume the following:
- two (2) operators are needed to complete the task
- it will take 1 minute per operator to complete the task
- use the highest On Contact radiation dose rate as the General Area dose rate for the room
Task Standard:
1. High Radiation Area (HRA), Contaminated Area (CA)
2. 205 mrem/hr
3. 10 mrem/hr
4. SRPT (may also specify signing onto RWP-1 and HRA brief)
5. 6.8 mrem (6-7 mrem is acceptable)
1. High Radiation Area (HRA), Contaminated Area (CA)
2. 205 mrem/hr
3. 10 mrem/hr
4. SRPT (may also specify signing onto RWP-1 and HRA brief)
5. 6.8 mrem (6-7 mrem is acceptable)
▶ Show Critical Steps & Key Actions
| Step | Critical Element | Standard |
|---|---|---|
| 1.0 * | Determine Radiological Posting for the work area | Operator refers to Radiological Survey Map #1108410 and determines that the work area is in a High Radiation Area (HRA) and Contaminated Area (CA). |
| 2.0 * | Determine highest On Contact radiation dose rate | Operator refers to Radiological Survey Map and determines that the highest On Contact radiation dose rate is 205 mrem/hr. (RP-AA-300, Attachment 2 provides definitions of survey map symbols and abbreviations.) |
| 3.0 * | Determine highest General Area dose rate | Operator refers to Radiological Survey Map and determines that the highest General Area (GA) radiation dose rate is 10 mrem/hr. |
| 4.0 * | Determine authorization needed for entry | Operator determines that the SRPT (Senior Radiation Protection Technician) needs to authorize the key release for entry into the HRA IAW RP-AA-463, Attachment 1. Operator may also identify signing onto RWP-1 and receiving an HRA brief from Rad Pro (RP-AA-460 P&Ls 2.1.1 and 2.1.3). |
| 5.0 * | Calculate total personnel dose exposure | Operator calculates: [205 mrem/hr x (1 hr / 60 mins)] x 2 mins = 6.8 mrem (6-7 mrem acceptable). Note: 2 minutes total (1 minute per operator x 2 operators), using the 205 mrem/hr On Contact dose rate as the General Area dose rate per the initiating cue. |
Key Decision Point:
The applicant must correctly read the radiological survey map symbols to identify the HRA/CA posting, distinguish between On Contact (205 mrem/hr) and General Area (10 mrem/hr) dose rates, and determine that SRPT authorization is required for HRA key release per RP-AA-463. The dose calculation uses the On Contact dose rate (205 mrem/hr) as specified in the initiating cue, not the General Area dose rate, and accounts for 2 minutes total work time (1 minute per operator x 2 operators).
The applicant must correctly read the radiological survey map symbols to identify the HRA/CA posting, distinguish between On Contact (205 mrem/hr) and General Area (10 mrem/hr) dose rates, and determine that SRPT authorization is required for HRA key release per RP-AA-463. The dose calculation uses the On Contact dose rate (205 mrem/hr) as specified in the initiating cue, not the General Area dose rate, and accounts for 2 minutes total work time (1 minute per operator x 2 operators).
Ref: RP-AA-460 (Rev 19), RP-AA-463 (Rev 5), RP-AA-300 (Rev 6), Radiological Survey Map #1108410 | Task: 1200100104 | K/A: G2.3.4 — Knowledge of radiation exposure limits under normal or emergency conditions (SRO Only) | Source: New | View JPM PDF