Last Updated: 04/27/2025 1:35 AM
The following table lists all the components that make up the document.
Search for and identify radioactive material using the Atomtex AT6101C backpack radiation scanner with the Atomtex Android mobile application (App).
1939 - 803 - Prepare Atomtex for Operation; Remark:
1932 - Note : For this procedure, automatic identification is disabled per DET-HHD-ATM-RM03...
For this procedure, automatic identification is disabled per DET-HHD-ATM-RM03 AT6101C Settings Verification Android.
785 - Note : Apply a rain cover when necessary (due to weather conditions, possible contam...
Apply a rain cover when necessary (due to weather conditions, possible contamination, or to change backpack appearance)
883 - Note : Headphones can be used in a noisy environment or for discrete operation. ...
Headphones can be used in a noisy environment or for discrete operation.
803 - Prepare Atomtex for Operation
Prepare Atomtex for Operation
786 - 219 - Verify there are no sources of radiation near instrument; Remark:7
219 - Verify there are no sources of radiation near instrument
Verify there are no sources of radiation near instrument
7 - No Radiation symbol

794 - 793 - Place check sample into side pocket; Remark:791
793 - Place check sample into side pocket
Place check sample into side pocket
791 - Atomtex_Place_check_sample_in_side_pocket


1967 - 1377 - Power on BT-DU3 Adapter; Remark:939
1467 - Note : The BT-DU3 will power off after 10 minutes if not connected to the handheld c...
The BT-DU3 will power off after 10 minutes if not connected to the handheld computer.
1377 - Power on BT-DU3 Adapter
Power on BT-DU3 Adapter
939 - Press and hold the BT-DU3 Adapter PWR button until the yello...
Press and hold the BT-DU3 Adapter PWR button until the yellow light is on and component lights flash. Place the Adapter back in the backpack and secure zippers.


1496 - 1495 - Power on mobile device; Remark:
1495 - Power on mobile device
Power on mobile device
1970 - 1942 - If prompted, tap OK to perform calibration; Remark:1965
1933 - Note : It is recommended to perform a calibration upon startup, at least once a week...
It is recommended to perform a calibration upon startup, at least once a week. Not performing calibration can result in failure to correctly identify isotopes.
1942 - If prompted, tap OK to perform calibration
If prompted, tap OK to perform calibration
1971 - 1418 - Enter scanning file name; Remark:1963
1934 - Note : The prompt to enter a file name will only appear for about 5 seconds if nothi...
The prompt to enter a file name will only appear for about 5 seconds if nothing is typed.
1418 - Enter scanning file name
Enter scanning file name
1963 - Enter a filename associated with the current task. For example: Stadium-1 or ...
Enter a filename associated with the current task. For example: Stadium-1 or TRAIN-421.

1972 - 2220 - Wait for measurement to complete; Remark:1964
2220 - Wait for measurement to complete
Wait for measurement to complete
1964 - The start-up sequence may take a few minutes to complete.
The start-up sequence may take a few minutes to complete.

1973 - 1432 - Verify backpack connection to mobile device; Remark:1962
1432 - Verify backpack connection to mobile device
Verify backpack connection to mobile device
1962 - Scanning… should appear at the top of the display. Gamma a...
Scanning… should appear at the top of the display. Gamma and neutron values should be changing.

1974 - 817 - Verify sufficient battery level is available to conduct operation; Remark:1961
817 - Verify sufficient battery level is available to conduct operation
Verify sufficient battery level is available to conduct operation
1961 - Battery power is indicated across the top of the screen and by the number of ...
Battery power is indicated across the top of the screen and by the number of bars at the top right of the display.

1975 - 1943 - Verify sufficient memory to conduct operation; Remark:1960
1943 - Verify sufficient memory to conduct operation
Verify sufficient memory to conduct operation
1976 - 1944 - Verify GPS connection (if needed); Remark:1959
820 - Note : The GPS (Global Positioning System) signal appears only when the handheld com...
The GPS (Global Positioning System) signal appears only when the handheld computer can detect GPS satellite signals.
1935 - Note : If the instrument was moved >200 km, it may take 5 to 10 minutes to acquir...
If the instrument was moved >200 km, it may take 5 to 10 minutes to acquire GPS.
1944 - Verify GPS connection (if needed)
Verify GPS connection (if needed)
1959 - GPS position connection is displayed across the top of the screen. The text a...
GPS position connection is displayed across the top of the screen. The text alternates with remaining hours of battery life and available memory.

1977 - 828 - Choose background mode; Remark:1958
1936 - Note : Permanent background is recommended when using the backpack for stationary op...
Permanent background is recommended when using the backpack for stationary operations or in a moving vehicle (such as a train). Adaptive background is recommended for search operations on foot.
828 - Choose background mode
Choose background mode
1958 - Tap menu icon > Settings > General settings
Tap menu icon > Settings > General settings > Background mode.


1978 - 1945 - Adjust volume on mobile device as needed; Remark:
1945 - Adjust volume on mobile device as needed
Adjust volume on mobile device as needed
1979 - 319 - Perform operational test; Remark:1957
319 - Perform operational test
Perform operational test
1957 - Refer to DET-HHD-ATM-RM01, AT6101C Operational Test Android to verif...
Refer to DET-HHD-ATM-RM01, AT6101C Operational Test Android to verify equipment functionality before use.
840 - 839 - Search Item/Area of Interest; Remark:
839 - Search Item/Area of Interest
Search Item/Area of Interest
1980 - 843 - Verify instrument is in SCANNING mode; Remark:1465
1937 - Note : The Atomtex backpack automatically enters Scanning mode after startup sequenc...
The Atomtex backpack automatically enters Scanning mode after startup sequence.
843 - Verify instrument is in SCANNING mode
Verify instrument is in SCANNING mode
1956 - Tap Restart scan to start a new scan at any time.
Tap Restart scan to start a new scan at any time.

847 - 846 - Walk slowly in the area of interest; Remark:845
846 - Walk slowly in the area of interest
Walk slowly in the area of interest
1981 - 849 - Observe instrument response for elevated radiation levels; Remark:1955
849 - Observe instrument response for elevated radiation levels
Observe instrument response for elevated radiation levels
1955 - If radioactive source activity is high enough to trigger an alarm:
If radioactive source activity is high enough to trigger an alarm:
- Gamma and/or neutron values will increase.
- Red and/or blue lights will flash.
- Moving graph values will increase.
- Moving graph color will change (red, blue, or light blue depending on the type of radiation).


854 - 853 - Locate area with highest level of radiation; Remark:852
851 - Note : A handheld survey instrument can be used to more accurately locate the source...
A handheld survey instrument can be used to more accurately locate the source of radiation.
853 - Locate area with highest level of radiation
Locate area with highest level of radiation
852 - A gradual 360° turn may be needed to determine the direction of the source. ...
A gradual 360° turn may be needed to determine the direction of the source. Move in the direction of increasing radiation. Continue moving until radiation levels begin to decrease.
1941 - 856 - Identify Isotopes; Remark:
856 - Identify Isotopes
Identify Isotopes
1982 - 859 - Start identification measurement; Remark:1954
859 - Start identification measurement
Start identification measurement
1983 - 2220 - Wait for measurement to complete; Remark:1953
2220 - Wait for measurement to complete
Wait for measurement to complete
1953 - The remaining time is displayed at the top of the screen.
The remaining time is displayed at the top of the screen.

1984 - 1946 - Move instrument away from source of radiation when status changes to ...; Remark:1952
1938 - Note : If needed, tap Extend identification to add time.
If needed, tap Extend identification to add time.
1946 - Move instrument away from source of radiation when status changes to ...
Move instrument away from source of radiation when status changes to Waiting
1952 - After identification is complete, the application will switch to Wait...
After identification is complete, the application will switch to Waiting mode for about 20 seconds and then return to Scanning mode.


1985 - 866 - Evaluate identification results; Remark:1951
866 - Evaluate identification results
Evaluate identification results
1951 - Identified isotopes are displayed in the program messages. Unrecognized isoto...
Identified isotopes are displayed in the program messages. Unrecognized isotopes are listed as “unknown.”

260 - 313 - Power off instrument; Remark:
313 - Power off instrument
Power off instrument
1986 - 1947 - Stop application; Remark:4823
1947 - Stop application
Stop application
4823 - Tap menu icon.
Tap menu icon.

4637 - Tap Exit App.
Tap Exit App.

4666 - Tap EXIT.
Tap EXIT.

1987 - 4703 - Power off mobile device; Remark:
4703 - Power off mobile device
Power off mobile device
879 - 878 - Power off BT-DU3 Adapter; Remark:877
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.

1988 - 881 - Connect instrument to external power; Remark:1949
881 - Connect instrument to external power
Connect instrument to external power
1949 - The BT-DU3 Adapter should charge when not in use.
The BT-DU3 Adapter should charge when not in use.
