AT6101C Neutron Detector Replacement | FRONTLINE Maintenance Tool

Last Updated: 04/27/2025 1:35 AM

The following table lists all the components that make up the document.

Title	Type	Status	Last Updated
Atomtex AT6101C Backpack	Device	Published	06/27/2024 1:47 PM
879 - 878 - Power off BT-DU3 Adapter; Remark:877	Procedure Step	Published	05/28/2020 5:04 PM
878 - Power off BT-DU3 Adapter	Instruction	Published	05/28/2020 5:04 PM
877 - To power off the BT-DU3 Adapter, press the PWR button for ab...	Remark	Published	11/12/2020 6:09 PM
1729 - 1718 - Locate neutron detector; Remark:1719	Procedure Step	Published	11/20/2020 12:31 PM
1718 - Locate neutron detector	Instruction	Published	11/18/2020 8:39 PM
1719 - The neutron detector should be located in the backpack compartment closest to...	Remark	Published	11/18/2020 8:41 PM
1730 - 1717 - Remove neutron detector; Remark:	Procedure Step	Published	11/30/2020 10:11 AM
1717 - Remove neutron detector	Instruction	Published	11/30/2020 10:09 AM
1731 - 1716 - Expose neutron detector cable connection; Remark:1720	Procedure Step	Published	11/24/2020 9:10 AM
1716 - Expose neutron detector cable connection	Instruction	Published	11/30/2020 10:08 AM
1720 - The connector can be accessed by partially removing the neutron detector from...	Remark	Published	11/23/2020 4:53 PM
1732 - 1715 - Remove adapter cable from BDKN-05 neutron detector; Remark:1721	Procedure Step	Published	11/24/2020 9:11 AM
1694 - Caution : Ensure the BT-DU3 adapter unit is powered off before removing or connecting d...	Annotation	Published	11/23/2020 5:30 PM
1715 - Remove adapter cable from BDKN-05 neutron detector	Instruction	Published	11/30/2020 10:07 AM
1721 - To remove the push-pull type connector, hold the connector by the collar only...	Remark	Published	11/23/2020 4:54 PM
1733 - 1714 - Completely remove neutron detector; Remark:1723	Procedure Step	Published	11/30/2020 10:12 AM
1714 - Completely remove neutron detector	Instruction	Published	11/30/2020 10:06 AM
1723 - IO AT6101C Neutron Detector Remove red arrow	Remark	Published	11/30/2020 9:57 AM
1734 - 1713 - Record serial numbers of faulty and replacement neutron detectors; Remark:1722	Procedure Step	Published	11/30/2020 10:13 AM
1713 - Record serial numbers of faulty and replacement neutron detectors	Instruction	Published	11/30/2020 10:05 AM
1722 - IO AT6101C Neutron Detector Serial Number	Remark	Published	11/30/2020 9:57 AM
1735 - 1712 - Install replacement neutron detector; Remark:	Procedure Step	Published	11/30/2020 10:13 AM
1712 - Install replacement neutron detector	Instruction	Published	11/30/2020 10:04 AM
1736 - 1711 - Set neutron detector partially into backpack; Remark:1724	Procedure Step	Published	11/30/2020 10:13 AM
1711 - Set neutron detector partially into backpack	Instruction	Published	11/30/2020 10:03 AM
1724 - This will allow the adapter cable to be reconnected	Remark	Published	11/30/2020 9:56 AM
1737 - 1679 - Align connector of adapter cable with detector connector; Remark:1686	Procedure Step	Published	11/24/2020 9:11 AM
1679 - Align connector of adapter cable with detector connector	Instruction	Published	11/29/2020 11:14 AM
1686 - Connectors only fit in one orientation. Gently rotate the DU cable connector ...	Remark	Published	11/23/2020 4:51 PM
1738 - 1710 - Connect cable to BDKN-05 neutron detector; Remark:1725	Procedure Step	Published	11/24/2020 9:11 AM
1695 - Caution : Do not force the connectors together.	Annotation	Published	11/19/2020 5:54 PM
1710 - Connect cable to BDKN-05 neutron detector	Instruction	Published	11/23/2020 4:57 PM
1725 - For the push-pull type, grip the back of the connector behind the collar to r...	Remark	Published	11/23/2020 4:55 PM
1739 - 1709 - Place neutron detector in backpack; Remark:1726	Procedure Step	Published	11/24/2020 9:12 AM
1709 - Place neutron detector in backpack	Instruction	Published	11/23/2020 4:56 PM
1726 - IO AT6101C Neutron Detector Install red arrow	Remark	Published	11/23/2020 4:55 PM
1704 - 1634 - Verify system is operating correctly; Remark:	Procedure Step	Published	11/24/2020 9:12 AM
1634 - Verify system is operating correctly	Instruction	Published	11/29/2020 11:16 AM
1378 - 1377 - Power on BT-DU3 Adapter; Remark:1376	Procedure Step	Published	11/19/2020 5:48 PM
1377 - Power on BT-DU3 Adapter	Instruction	Published	09/30/2020 4:33 PM
1376 - Power Button on BT-DU3	Remark	Published	09/17/2020 10:06 AM
1740 - 1708 - Verify neutron detector is connected to BT-DU3; Remark:1727	Procedure Step	Published	11/30/2020 10:14 AM
1708 - Verify neutron detector is connected to BT-DU3	Instruction	Published	11/30/2020 10:01 AM
1727 - The DU3 LED will be blinking rapidly.	Remark	Published	11/30/2020 9:53 AM
1706 - 319 - Perform operational test; Remark:1385	Procedure Step	Published	11/29/2020 11:34 AM
319 - Perform operational test	Instruction	Published	06/10/2021 8:31 PM
1385 - DET-HHD-ATM-RM01 AT6101C Operational Test.	Remark	Published	11/19/2020 5:40 PM
1741 - 1682 - Tag suspect part with fault information; Remark:1728	Procedure Step	Published	11/30/2020 10:15 AM
1682 - Tag suspect part with fault information	Instruction	Published	11/29/2020 11:19 AM
1728 - Dispose of the faulty BDKN-05 neutron detector per organizational and local j...	Remark	Published	11/30/2020 9:52 AM
322 - 321 - Document maintenance actions; Remark:	Procedure Step	Published	06/17/2021 9:49 AM
321 - Document maintenance actions	Instruction	Published	04/21/2025 11:19 AM
2869 - 2585 - Document maintenance performed; Remark:2866	Procedure Step	Published	06/18/2021 5:58 PM
2585 - Document maintenance performed	Instruction	Published	07/09/2021 12:15 PM
2866 - Record observations, times, and results for the maintenance report.	Remark	Published	04/21/2025 11:39 AM
4706 - 4705 - Submit report; Remark:4864	Procedure Step	Published	06/29/2022 9:50 AM
4705 - Submit report	Instruction	Published	06/29/2022 9:50 AM
4864 - As specified by management or contractual obligations.	Remark	Published	07/28/2022 1:36 PM
Corrective Maintenance Procedure	Document Type	Published	03/02/2020 3:32 PM
15 minutes	Duration	Published	04/01/2020 11:35 AM
As Needed	Frequency	Published	04/01/2020 11:36 AM
Caution	Annotation Type	Published	03/02/2020 3:24 PM
Technician 1	Skill Level	Published	05/14/2020 2:56 PM
None	Tools	Published	05/06/2020 9:50 PM
Atomtex_BT-DU3_Power_Button	Image	Published	09/04/2020 10:30 PM
AT6101C_Partial_Neutron_Detector_red_box	Image	Published	09/04/2020 10:48 PM
AT6101C_Partial_Neutron_Connector_Location_red_arrow	Image	Published	09/04/2020 10:48 PM
AT6101C_Neutron_Connector_Remove_red_arrows	Image	Published	09/04/2020 10:48 PM
AT6101C_Partial_Neutron_Remove_red_arrow	Image	Published	09/04/2020 10:48 PM
AT6101C_Neutron_Serial_Number_Location	Image	Published	09/04/2020 5:06 PM
AT6101C_Neutron_Serial_Number_0.png	Image	Published	09/04/2020 10:48 PM
at6101C_Neutron_Remove_DU	Image	Published	09/04/2020 10:48 PM
BT-DU3 Cable Connector Tab	Image	Published	09/04/2020 10:42 PM
AT6101C_Neutron_Connector_Install_red_arrows	Image	Published	09/04/2020 10:48 PM
AT6101C_Partial_Neutron_Install	Image	Published	09/04/2020 10:47 PM
AT6101C_BTDU3_LED_DU3_red_circle	Image	Published	09/04/2020 10:47 PM

DET-HHD-ATM-CM03

Replace BDKN-05 neutron detection unit

Equipment Hierarchy

Atomtex AT6101C Backpack

Frequency

As Needed

Technician Level

Technikus 1

x 1

Duration

Time increment

15 minutes

Tools Required

None

Materials Required

BDKN-05 neutron detection unit

Originators

Tucker, Brian

Originating Organization

PNNL

Safety Concerns

None

Retest Requirements

AT6101C Operational Test Android

Final Documentation

Corrective Maintenance Report

Departmental Coordination

Coordinate with relevant authorities

Version

0.00

Step 1

Main Step

879 - 878 - Power off BT-DU3 Adapter; Remark:877

Step 00

878 - Power off BT-DU3 Adapter

Power off BT-DU3 Adapter

877 - To power off the BT-DU3 Adapter, press the PWR button for ab...

To power off the BT-DU3 Adapter, press the PWR button for about 3 seconds.

Power button on the BT-DU3 is located in the lower right hand corner

Step 2

Main Step

1729 - 1718 - Locate neutron detector; Remark:1719

Step 00

1718 - Locate neutron detector

Locate neutron detector

1719 - The neutron detector should be located in the backpack compartment closest to...

The neutron detector should be located in the backpack compartment closest to the shoulder straps.

Neutron detector on one side of backpack compartment

Step 3

Main Step

1730 - 1717 - Remove neutron detector; Remark:

Step 00

1717 - Remove neutron detector

Remove neutron detector

1731 - 1716 - Expose neutron detector cable connection; Remark:1720

Step 00

1716 - Expose neutron detector cable connection

Expose neutron detector cable connection

1720 - The connector can be accessed by partially removing the neutron detector from...

The connector can be accessed by partially removing the neutron detector from the backpack.

Neutron cable connects to detector after removing part way

1732 - 1715 - Remove adapter cable from BDKN-05 neutron detector; Remark:1721

1694 - Caution : Ensure the BT-DU3 adapter unit is powered off before removing or connecting d...

Type

Caution

Ensure the BT-DU3 adapter unit is powered off before removing or connecting detector cables to the BT-DU3 adapter unit

Step 00

1715 - Remove adapter cable from BDKN-05 neutron detector

Remove adapter cable from BDKN-05 neutron detector

1721 - To remove the push-pull type connector, hold the connector by the collar only...

To remove the push-pull type connector, hold the connector by the collar only and pull.

1733 - 1714 - Completely remove neutron detector; Remark:1723

Step 00

1714 - Completely remove neutron detector

Completely remove neutron detector

1723 - IO AT6101C Neutron Detector Remove red arrow

Step 4

Main Step

1734 - 1713 - Record serial numbers of faulty and replacement neutron detectors; Remark:1722

Step 00

1713 - Record serial numbers of faulty and replacement neutron detectors

Record serial numbers of faulty and replacement neutron detectors

1722 - IO AT6101C Neutron Detector Serial Number

Serial number location of neutron detector

Step 5

Main Step

1735 - 1712 - Install replacement neutron detector; Remark:

Step 00

1712 - Install replacement neutron detector

Install replacement neutron detector

1736 - 1711 - Set neutron detector partially into backpack; Remark:1724

Step 00

1711 - Set neutron detector partially into backpack

Set neutron detector partially into backpack

1724 - This will allow the adapter cable to be reconnected

This will allow the adapter cable to be reconnected

1737 - 1679 - Align connector of adapter cable with detector connector; Remark:1686

Step 00

1679 - Align connector of adapter cable with detector connector

Align connector of adapter cable with detector connector

1686 - Connectors only fit in one orientation. Gently rotate the DU cable connector ...

Connectors only fit in one orientation. Gently rotate the DU cable connector until it easily slides into place.

The detector cable connector end has a tab that aligns with the tab slot on the BT-DU3 connector port

1738 - 1710 - Connect cable to BDKN-05 neutron detector; Remark:1725

1695 - Caution : Do not force the connectors together.

Type

Caution

Do not force the connectors together.

Step 00

1710 - Connect cable to BDKN-05 neutron detector

Connect cable to BDKN-05 neutron detector

1725 - For the push-pull type, grip the back of the connector behind the collar to r...

For the push-pull type, grip the back of the connector behind the collar to reconnect.

1739 - 1709 - Place neutron detector in backpack; Remark:1726

Step 00

1709 - Place neutron detector in backpack

Place neutron detector in backpack

1726 - IO AT6101C Neutron Detector Install red arrow

Step 6

Main Step

1704 - 1634 - Verify system is operating correctly; Remark:

Step 00

1634 - Verify system is operating correctly

Verify system is operating correctly

1378 - 1377 - Power on BT-DU3 Adapter; Remark:1376

Step 00

1377 - Power on BT-DU3 Adapter

Power on BT-DU3 Adapter

1376 - Power Button on BT-DU3

1740 - 1708 - Verify neutron detector is connected to BT-DU3; Remark:1727

Step 00

1708 - Verify neutron detector is connected to BT-DU3

Verify neutron detector is connected to BT-DU3

1727 - The DU3 LED will be blinking rapidly.

The DU3 LED will be blinking rapidly.

BT-DU3 shows the DU3 LED glowing when communicating with the neutron detector

1706 - 319 - Perform operational test; Remark:1385

Step 00

319 - Perform operational test

Perform operational test

1385 - DET-HHD-ATM-RM01 AT6101C Operational Test.

DET-HHD-ATM-RM01 AT6101C Operational Test.

Step 7

Main Step

1741 - 1682 - Tag suspect part with fault information; Remark:1728

Step 00

1682 - Tag suspect part with fault information

Tag suspect part with fault information

1728 - Dispose of the faulty BDKN-05 neutron detector per organizational and local j...

Dispose of the faulty BDKN-05 neutron detector per organizational and local jurisdiction requirements.

Step 8

Main Step

322 - 321 - Document maintenance actions; Remark:

Step 00

321 - Document maintenance actions

Document maintenance actions

2869 - 2585 - Document maintenance performed; Remark:2866

Step 00

2585 - Document maintenance performed

Document maintenance performed

2866 - Record observations, times, and results for the maintenance report.

Record observations, times, and results for the maintenance report.

4706 - 4705 - Submit report; Remark:4864

Step 00

4705 - Submit report

Submit report

4864 - As specified by management or contractual obligations.

As specified by management or contractual obligations.

Document Type

Corrective Maintenance Procedure

Percent Complete

100.00

Percent Complete W/Media

100.00