Appendix B: Reachback Worksheet and QA Checklists | RIIDs in the Field

Appendix B: Reachback Worksheet & QA Checklists

B.1 Reachback Worksheet (Photocopy & Fill In)

B.1 Reachback Worksheet (Photocopy & Fill In)

RIID REACHBACK WORKSHEET

Event ID

Operator (name, agency, callback)

LOCATION

Address / GPS

Time of measurement

INSTRUMENT

Model

Last calibration check

MEASUREMENT

Background dose rate

Source dose rate at 1 m

Dose rate at perimeter

Dose rate at operator position

Distance from instrument to source (m)

Scan duration

IDENTIFICATION

Reported isotope(s)

Confidence (high/medium/low/score)

Spectrum file name

Photographs attached: Y / N How many

CONTEXT

Vehicle / cargo / patient / venue / other

Manifest / patient record / placard text

Witness statements / officer narrative:

OPERATOR ASSESSMENT

What I know

What I suspect

What I don't know

REACHBACK CHANNEL CONTACTED

Reachback partner

Time sent

Reachback determination

DISPOSITION

Cordon held / released / escalated

Hand-off agency

Final disposition time

B.2 Daily Function Check (Start of Shift)

B.2 Daily Function Check (Start of Shift)

Unit powers on; no error codes
Battery ≥ 80% (or unit on charge)
Date/time correct
GPS lock obtained (outdoor)
Self-test passed
Energy calibration check (Cs-137 photopeak at 662 keV ± 1%)
Audible alarm tested
Visible alarm tested
Vibration alarm tested (if equipped)
Connectivity tested (Wi-Fi/cell)
Test transmission to reachback succeeds
Background spectrum acquired and stored
Spectrum store has space for at least 50 events
Operator log signed

B.3 Weekly Function Check

B.3 Weekly Function Check

All daily items
Check source verification (Cs-137 and Co-60 if available)

- Cs-137 photopeak at 662 keV

- Co-60 photopeaks at 1173 and 1333 keV

Resolution check (FWHM at 662 keV within spec)
Battery rotation: oldest battery cycled out
Charger cables inspected
Carry case inspected (no contamination, all accessories present)
Firmware version recorded
Spectra archived to records server
Maintenance log entry signed

B.4 Post-Use Check (After Any Real Event)

B.4 Post-Use Check (After Any Real Event)

All event spectra saved and exported
Photos transferred to records
Reachback worksheet completed
Unit external surfaces inspected for contamination (survey meter)
Decontamination performed if needed (per agency procedure)
Battery rotated to charger
Storage cradle/case dried and clean
Defects logged (button stiff, screen scratch, etc.)
Unit returned to ready status