Before beam can be sent into an area that has been previously open to workers, operators must secure this area and evict any personnel found in the area. This is to prevent unnecessary exposure from beam induced radiation or, in certain areas like the FRIB linac tunnel, from x-ray radiation.

Throughout each area, there are a series of arm buttons placed in strategic locations along with gates/doors with associated switches. When securing an area, operators must go through and correctly push the arm buttons and close the doors and/or gates in the correct sequence as they search for any occupants. When this is done correctly, this will signal to the PPS that the area has been secured and is ready for beam operation.

An operator must have either attained the relevant competencies on Enterprise or be escorted by a fully trained operator to perform a search and evict procedure.

• Enterprise Competency: Perform an FRIB Tunnel Search and Evict
• Personnel: Minimum of two (2) fully trained personnel
• Equipment: Validated Linac Tunnel ACS, hardhat, inspection mirror (optional), radio
• Documentation: Search and Evict Procedure for FRIB Linac Tunnel - Credited Administrative Control with ESH Impact

• Enterprise Competency: Perform an FRIB Target Hall Search and Evict
• Personnel: Minimum of two (2), one of whom is fully trained
• Equipment: Validated Target Facility ACS, hardhat, safety glasses, radio
• Documentation: Search-and-Evict Procedure for the FRIB Target Hall (B605A and B605) – Credited Administrative Control with ESH Impact

• Enterprise Competency: Perform an FRIB VPS Search and Evict
• Personnel: Minimum of one (1) fully trained personnel
• Equipment: Validated Target Facility ACS, radio, padlocks (key numbers here)
• Documentation: Search-and-Evict Procedure for Vertical Pre-Separator and ARIS Areas – Credited Administrative Control with ESH Impact

• Enterprise Competency: Perform an FRIB Transfer Hall Search and Evict
• Personnel: Minimum of one (1) fully trained personnel
• Equipment: Validated Transfer Hall ACS
• Documentation: Search-and-Evict Procedure for the FRIB Transfer Hall (1500TH) – Credited Administrative Control with ESH Impact