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Operation of the Canberra Alpha Sentry CAM System

Type

CONTINUOUS Document No.

TF-RC-045 Rev/Mod

A-0 Release Date

09/05/2018 Page

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Tank Farm Plant Operating Procedure RADCON

USQ #N/A-4

CHANGE HISTORY ( LAST 5 REV-MODS )

Rev-Mod Release Date Justification: Summary of Changes

A-0 09/05/2018 New equipment New procedure

This is a new revision. The First Time Use process as defined in TFC-OPS-OPER-C-13 can be

used during the initial performance of this revision.

Table of Contents Page

1.0 PURPOSE AND SCOPE ................................................................................................................ 3

1.1 Purpose ................................................................................................................................ 3

1.2 Scope ................................................................................................................................... 3

2.0 INFORMATION............................................................................................................................. 3

2.1 Terms & Definitions ........................................................................................................... 3

3.0 PRECAUTIONS AND LIMITATIONS......................................................................................... 4

3.1 Equipment Safety ................................................................................................................ 4

3.2 Radiation and Contamination Control ................................................................................ 4

3.3 Limits .................................................................................................................................. 4

4.0 PREREQUISITES .......................................................................................................................... 5

4.1 Special Tools, Equipment and Supplies.............................................................................. 5

4.2 Performance Documents ..................................................................................................... 5

4.3 Field Preparation ................................................................................................................. 5

5.0 PROCEDURE ................................................................................................................................. 6

5.1 Perform Initial Installation and Setup ................................................................................. 6

5.2 Perform DAILY Checks ..................................................................................................... 7

5.3 Complete Weekly / Monthy Performance Tests ................................................................. 9

5.4 Filter Removal .................................................................................................................. 12

5.5 DATA Retrieval from ASM ............................................................................................. 13

5.6 Investigate Airborne Contamination Alarms .................................................................... 14

5.7 Respond/Investigate Instrument Fault Alarms at ASM / CAM ........................................ 15

http://idmsweb/idms/livelink.exe/Open/3494490


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5.8 Remove from Service ....................................................................................................... 16

5.9 Records ............................................................................................................................. 17


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1.0 PURPOSE AND SCOPE

1.1 Purpose

This procedure provides instructions for operation of the Canberra Alpha Sentry CAM

System.

1.2 Scope

This procedure is applicable to the Canberra Alpha Sentry CAM System. This system

includes the ASM 1000 Alpha Sentry Manager (ASM) and the 1700R CAM sampling

head (CAM head). Limits apply to entire procedure: 0 C to 50 C (32 F to 122 F) in a

controlled environment, 0% to 95% relative humidity, non-condensing.

2.0 INFORMATION

2.1 Terms & Definitions

ASM – Alpha Sentry Manager

RFI – Radio Frequency Interface.


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3.0 PRECAUTIONS AND LIMITATIONS

3.1 Equipment Safety

3.1.1 Detectors are sensitive to light interference. Conductive materials on the

detector face (such as pump exhaust, chemical vapors, and moisture) will

interfere with alpha particle detection.

3.1.2 The sampling head electronics are sensitive to radio frequency interference

(RFI) and AC line voltage spikes.

3.1.3 The thin metal radon rejection screen near the top of the CAM, if installed,

should not be touched with the bare hands to avoid transferring oils to the

screen.

3.2 Radiation and Contamination Control

3.2.1 When performed without a work package, this procedure is limited to

radiological areas and work activities permitted by a general radiological

work permit.

3.2.2 When work is performed in or when work will result in a high contamination,

high radiation, or an airborne radioactivity area, an approved work package

must be developed which is reviewed by Radiological Control per ALARA

work planning procedure TFC-ESHQ-RP_RWP-C-03.

3.3 Limits

Operating Limits

Unit operation is limited to the following:

0 C to 50 C (32 F to 122 F) in a controlled environment

0% to 95% relative humidity, non-condensing.


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4.0 PREREQUISITES

4.1 Special Tools, Equipment and Supplies

The following tools, equipment, and supplies may be needed to perform this procedure:

Appropriate level of password to perform expected duties

Approved filter media

Alpha source, for performance check

Filter cartridges (normally red for check source and black for filter media).

4.2 Performance Documents

The following documents may be needed to perform this procedure:

TOC – Radiological Control CAM Operability Checklist (A-6004-216)

TFC-OPS-OPER-C-13, Technical Procedure Control and Use.

4.3 Field Preparation

NOTE - Unit operation is limited to the following:

0 C to 50 C (32 F to 122 F) in a controlled environment

0% to 95% relative humidity, non-condensing.

- Above 35 C (95 F) the LCD display may not function.

4.3.1 VERIFY temperature and humidity are within range for unit operation.


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5.0 PROCEDURE

NOTE - RadCon management/team lead may authorize the user(s) to perform sections 5.1

through 5.8 independently, concurrently, or not performed when unneeded. Sections

5.1 through 5.8 may be completed independently without finishing the entire

procedure.

- RadCon management/team lead may authorize the user(s) not performed when

unneeded in accordance with TFC-OPS-OPER-C-13.

5.1 Perform Initial Installation and Setup

NOTE - Smooth side of filter (collection side) goes up.

5.1.1 PREPARE sample filter in black cartridge for installation.

5.1.2 INITIATE operability checklist for CAM.

5.1.3 OBTAIN correct source in red cartridge holder.

5.1.4 IF adding CAM to ASM, PERFORM the following as necessary:

5.1.4.1 PRESS [F5] to Log In to ASM.

5.1.4.2 ENTER pass code (10000) AND PRESS [ENTER].

5.1.4.3 PRESS [F4] “System Set Up”.

5.1.4.4 PRESS [F4] “Network Configuration”.

5.1.4.5 PRESS [F1] “Auto Config”.

NOTE - ASM should indicate “Auto” in status.

5.1.4.6 PRESS [NETWORK DISPLAY].

5.1.4.7 VERIFY new CAM has been added.

5.1.5 PERFORM daily checks per Section 5.2.

5.1.6 PERFORM weekly / monthly checks per Section 5.3.

5.1.7 COMPLETE applicable portions of the operability checklist.


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5.2 Perform DAILY Checks

NOTE - “Reverse video” is a gray-white shade on the LCD of the ASM. System

messages and visual confirmation of alarm conditions are shown on the screen

as reverse video. The reverse video is dark characters on a white background,

when the rest of the screen background is dark blue. An LCD contrast

adjustment feature is not available on some ASM models. When available, the

adjustment can be found on the side of the ASM and it can be used to optimize

LCD tones.

5.2.1 IF at any time during the performance of this activity, the CAM screens are

displayed in reverse video and/or alarm lights are ON, GO TO Section 5.5.

5.2.2 INSPECT ASM and CAM for obvious damage/malfunctioning components.

5.2.2.1 IF problems are identified, REMOVE from service per

Section 5.8.

5.2.3 PERFORM daily checks per the operability checklist.

5.2.3.1 PRESS [F5] to Log On to ASM, as necessary.

5.2.3.2 ENTER pass code (10000) AND

PRESS [ENTER], as necessary.

5.2.3.3 PRESS [DETAILED DISPLAY].

5.2.3.4 CHECK that airflow on ASM is within acceptable range

(1.7 cfm to 2.3 cfm) or as specified in facility technical

evaluation.


5.2.3.6 PRESS [F1] “Param Set Up”.

5.2.3.7 PRESS [F1] “Alarm Set Up”.

5.2.3.8 CHECK that alarm limit is set (normally 8 DAC-hr in areas not

requiring respiratory protection.

5.2.3.9 CHECK low flow equals 1.700 cfm.


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5.2 Perform DAILY Checks (Cont.)

5.2.3.10 CHECK high flow equals 2.300 cfm.

5.2.3.11 CHECK Confidence Level equals 1.65.

5.2.3.12 CHECK DAC Factor equals 5.00E-12.

5.2.3.13 CHECK upper energy limit equals 5.700 MeV.

5.2.3.14 CHECK analysis window equals 2.700 MeV.

5.2.3.15 CHECK Count cycle equals 30 min.

5.2.3.16 CHECK Acute interval equals 30 sec.

5.2.3.17 PRESS [NETWORK DISPLAY].

5.2.3.18 PRESS [F5] to log out, if not completing another section within

this procedure.

5.2.3.19 COMPLETE applicable portions of the Operability Checklist.

5.2.3.20 NOTIFY RadCon management of any discrepancies.


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5.3 Complete Weekly / Monthy Performance Tests

NOTE - The weekly performance test includes an acute alarm test, which satisfies the

requirement for monthly horn and alarm testing.

5.3.1 PERFORM Daily Checks per Section 5.2 if not already completed.

5.3.2 ENSURE activity of source matches activity entered into ASM.

5.3.2.1 PRESS [F5] to log into Alpha Sentry, if necessary.

5.3.2.2 ENTER pass code (10000) AND PRESS [ENTER}.


5.3.2.4 PRESS [F2] “Source Info”.

5.3.2.5 IF source activity does not match, NOTIFY RadCon

management.

5.3.2.6 IF directed by RadCon Management to change source activity,

PERFORM the following steps:

a. PRESS the “VERT INDEX” to highlight the intended

parameter.

b. VERIFY the activity units match the units listed on the

source label (i.e., dpm) AND ENTER activity value from

source label.


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5.3 Complete Weekly / Monthy Performance Tests (Cont.)

5.3.3 PRESS [DETAILED DISPLAY].

5.3.3.1 CHECK that efficiency and flow calibrations are current.

5.3.4 PRESS [NETWORK DISPLAY].

5.3.5 NOTIFY personnel of pending performance test.

5.3.6 ENSURE CAM green LED is on and CAM red LED is off.

5.3.7 PRESS [F2] “Performance Check” to prime CAM.

NOTE - Red alarm LEDs on CAMs connected to ASM will begin to blink, indicating

that CAM is primed for performance check. When counting, red alarm LED is

ON and green count LED blinks.

- To prevent damage to the CAM, only the red source cartridge should be used

for alarm testing. It is made specifically for alarm testing and has inlet holes in

the bottom so the vacuum supply does not need to be eliminated.

5.3.8 REPLACE black filter cartridge with designated red check source cartridge.

5.3.9 ENSURE door is closed and latched

(green LED will blink when door is shut).

NOTE - Waiting on strobe and horn could take a couple of minutes.

5.3.10 WAIT for strobe and horn to alarm at CAM.

5.3.11 VERIFY CAM has passed its performance and acute alarm checks in the

ASM.

5.3.12 PRESS “DETAIL DISPLAY”.


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5.3 Complete Weekly / Monthy Performance Tests (Cont.)

5.3.13 IF CAM does not pass Weekly / Monthly check, REMOVE the CAM from

service and NOTIFY RadCon management.

5.3.14 IF CAM passed its Weekly / Monthly check, PERFORM the following:

5.3.14.1 REMOVE red check source cartridge.

5.3.14.2 INSTALL cassette with new filter, aligning filter housing with

notch AND

ENSURE the cassette is properly seated.

5.3.15 ENSURE CAM door is closed, latched, and green count LED is ON.

5.3.15.1 IF red LED keeps flashing, REPEAT step 5.3.14 to clear the red

LED.

5.3.16 PREPORT any failed CAMs and CAMs removed from service to RadCon

Management.

5.3.17 RECORD weekly / monthly CAM checks on operability checklist.

5.3.18 PRESS [F5] to LOG OUT of ASM.

5.3.19 NOTIFY personnel in the area of the CAM of the completed performance

test.


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5.4 Filter Removal

NOTE - This section is for filter removal that occurs at the completion of work

requiring use of the CAM.

Prepare for Filter Removal

5.4.1 PREPARE envelope for air sample removal, if necessary.

5.4.2 PROVIDE notifications, as applicable.

Record Flow-off Data

5.4.3 PRESS [F5] to Log In to ASM, as needed.

5.4.3.1 ENTER Pass Code (10000) AND PRESS [ENTER].

5.4.4 OBTAIN Flow-off as follows:

5.4.4.1 PRESS [DETAILED DISPLAY].

5.4.4.2 CHOOSE CAM, if necessary.

5.4.4.3 PRESS [ENTER].

Complete Filter Removal

5.4.5 PRESS [F1] “Filter Change”.

5.4.6 PRESS [F1] “Filter Change” a second time.

NOTE - Red alarm LEDs on CAM connected to ASM will begin to blink, indicating

CAM is primed for filter change.

5.4.7 REMOVE appropriate filter, AND REPLACE with empty filter housing,

aligning filter housing with notch.

5.4.8 ENSURE CAM door is closed and latched.

5.4.9 ENSURE CAM filters are transferred to labeled envelopes AND RECORD

Time-OFF on envelope.


5.4.11 PRESS [F5] to Log Out of ASM.

5.4.12 ENSURE vacuum is OFF.

5.4.13 ENSURE the CAM and ASM are OFF.


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5.5 DATA Retrieval from ASM

NOTE - For DATA Retrieval of CAM and ASM Conditions and actions required – See Below

Table to determine which section to follow:

Condition Indicates Section

CAM Red strobe light, Horn Airborne Contamination 5.6

ASM Red light Reverse video Airborne Contamination 5.6

CAM Red LED Instrument Fault alarm or

High Background 5.7

ASM Amber light Reverse video Instrument Fault alarm or

High Background 5.7


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5.6 Investigate Airborne Contamination Alarms

NOTE - This section only provides guidance on how to obtain airborne radioactivity

information from the ASM. It does not replace or exclude the need to respond

in accordance with alarm response procedures.

5.6.1 MONITOR ASM / CAM for alarm conditions (i.e., reverse video displays,

red light, horn, DAC value).

5.6.2 NOTIFY affected personnel of a CAM alarm.

5.6.3 PRESS [STOP ALARM] to silence horn.

5.6.4 IF necessary, PRESS [F5] to LOG ON ASM.

5.6.5 ENTER pass code (10000) AND

PRESS [ENTER], if necessary.


5.6.7 ENTER CAM, if necessary.

5.6.8 REVIEW alarm on DETAILED DISPLAY.

5.6.9 PRESS [F3] “Data Review”.

5.6.10 PRESS [F1] “History Trends”.

5.6.10.1 SELECT one of the following to retrieve data as requested:

“Cursor Detail”

“Alarm Log”

“View Spectrum”.

5.6.11 IF done, PRESS [F5] to LOG OFF ASM.


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5.7 Respond/Investigate Instrument Fault Alarms at ASM / CAM

5.7.1 MONITOR ASM / CAM for alarm conditions (reverse video displays,

amber light).

5.7.2 IF necessary, PRESS [F5] to LOG ON ASM.

5.7.3 ENTER pass code (10000) AND



5.7.5 ENTER CAM, if necessary.

5.7.6 REVIEW Alarm/Fault on DETAILED DISPLAY.

5.7.6.1 PRESS [F3] “DATA REVIEW”.

5.7.6.2 PRESS [F2] “ALARM LOG”.

5.7.6.3 REVIEW alarms AND

NOTIFY RadCon management.

5.7.7 IF only a LOW or HIGH FLOW is indicated ADJUST air sample flow rate

between 1.7 to 2.3 cfm.

5.7.8 IF open door alarm exists, ENSURE door is closed and latched.

5.7.8.1 IF door alarm could not be cleared, NOTIFY RadCon

management.

5.7.9 For all other alarms, NOTIFY RadCon management.


5.7.11 PRESS [F5] to LOG OFF.

5.7.12 IF ASM / CAM problem(s) are corrected, RECORD actions taken on

operability checklist.

5.7.13 IF ASM / CAM problem(s) are not corrected, REPLACE/REMOVE CAM

per Section 5.8.


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5.8 Remove from Service

5.8.1 NOTIFY RadCon and line management of reason for CAM being removed

from service.

5.8.2 PRESS [F5] to LOG ON, if necessary.

5.8.3 ENTER Pass code (10000) AND



5.8.5 DELETE the CAM from ASM:

5.8.5.1 PRESS [F4] to go to System Set Up.

5.8.5.2 PRESS [F4] to go to Network Configuration.

5.8.5.3 REPEATEDLY PRESS the Vert. Index key to highlight the

correct CAM.

5.8.5.4 PRESS [F3] to delete CAM.

5.8.6 PRESS the Horiz Index key as necessary to highlight “YES” or “NO” based

on facility protocols for database retention, AND

PRESS [ENTER].

5.8.7 ENSURE vacuum is OFF.

5.8.8 RECORD reason for removing CAM on the CAM operability checklist.


5.8.10 PRESS [F5] to Log Out of system.

5.8.11 IF performing a CAM exchange, GO TO Section 5.1.


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5.9 Records

5.9.1 PERFORM the following for records identified within this procedure.

5.9.2 RECORD the number of times the record was generated in applicable

column

OR

PLACE a check mark () in the N/A column.

5.9.3 SUBMIT the package for verification of completed records.

Records Submittal Checklist

Number of

times

completed

N/A

()

Forms

Site Form A-6004-216 TOC – Radiological Control CAM

Operability Checklist

First Line Manager (or designee) SEND the completed records to the Central Shift Office for

records retention.

/ /

Signature Print (First & Last) Date

First Line Manager (or designee)

The record custodian identified in the Company Level Records Inventory and

Disposition Schedule (RIDS), is responsible for record retention in accordance

with TFC-BSM-IRM_DC-C-02.