A-2-1-114 PDX KIT Flashcards
What is the main purpose of the HRM?
The HRM is designed and optimized for interdiction and search, and is NOT intended for health physics applications.
What should not be done to the housing of the AN/PDX-2 components?
The housing should not be tampered with, penetrated, or removed except for normal access to the external connectors.
Is the identiFINDER R425 certified for use in intrinsically safe environments?
No, it is not certified for use in intrinsically safe environments.
What should be avoided to prevent damaging scintillation detector crystals?
Handle the instrument with utmost care and avoid dropping it.
What temperature change can cause scintillation detector crystals to fracture?
Sudden temperature changes of more than 30 degrees Celsius (54 degrees Fahrenheit).
What type of interference might the AN/PDX-2 components be susceptible to?
Electromagnetic Interference (EMI) from RF transmitters and radar systems.
What is the maximum tension that can be applied to the LRM cable without breaking it?
About 110.00 pounds of tension.
What happens if the detector module is installed backwards?
It will prevent the detector module and all modules below it from functioning.
What is required on the last detector module to protect the connector?
An end cap on the bottom cable connector.
What is the required condition for using the device with an external power supply?
The powerPACK (+) PLUS must be installed.
What will the HRM display when encountering a gamma ray radiation field higher than approximately 12 mR/hr?
It will display a ‘9’ in the ‘G’ display and maximize the duty-cycle of the alarm.
What is the weight of the Handheld Radiation Monitor (HRM)?
368.54 grams (13.00 ounces) with battery.
What is the integration time or response time of the HRM?
Less than 1 second.
What type of battery does the HRM use?
3-volt lithium size 2/3 A (CR123).
What is the waterproof capability of the HRM?
Waterproof to 20.12 meters (66.00 feet).
What is the low energy cutoff for the gamma ray detector?
Approximately 45 KeV.
What is the detector type used for neutron detection in the HRM?
Helium-3, 8.3 atmospheres absolute (122 psia).
How should the HRM be activated?
Using a three-position rotary switch.
What does the UPDATE button do on the HRM?
Recalculates the gamma ray alarm trip level using data from the previous six seconds.
What does a ‘U’ on the LED display indicate?
The current alarm levels are set too low for the current background level.
What happens to the HRM displays when gamma rays and neutrons are detected simultaneously?
The alarms will activate based on the gamma ray data.
What should be done after storing the device at low temperatures?
Warm the device at room temperature for 15 minutes before turning it on.
What does the blue LED on the HRM indicate?
It flashes each time a neutron is detected.
What happens during the HRM self-test when powered up?
The gamma ray LED display will flash a single line in the middle segment.
What is the function of the two single-digit LED displays on the HRM?
They indicate the detection of neutron and gamma ray radiation.
What does the HRM measure?
The ambient gamma ray radiation and neutron levels
HRM stands for Handheld Radiation Monitor.
How often does the Period on the gamma ray display flash to indicate proper operation?
Approximately every 20 seconds
What alerts the operator when gamma rays or neutrons are detected at levels above background?
Single-digit LED displays, audio alarm, or vibration
What is the recommended search speed when using the HRM?
About two feet-per-second or slower
What should the operator do to search a specific object accurately?
Keep the HRM within two to three inches of the object’s surface
True or False: The HRM is intended for health physics applications.
False
What happens if a gamma ray radiation field higher than approximately 12 mR/hr is encountered?
The HRM will display a ‘9’ in the ‘G’ display and maximize the duty-cycle of the alarm
What type of battery does the HRM use?
A single 3-volt lithium 2/3 A size battery (CR123)
What is the recommended battery for the HRM?
Duracell DL 123, Kodak, or Energizer equivalent
What should be done if the battery is inserted backward?
Turn the system off and ensure that the battery is installed with the positive end in first
What is the maximum operational time for the HRM on a single battery?
One month
What is the purpose of the COLTS database application?
To report failures and manage work orders for the HRM
Fill in the blank: Preventive maintenance consists of routine checks of the equipment before and after each _______.
mission
What is the weight of the Linear Radiation Monitor (LRM)?
5.30 kilograms (11.70 pounds)
How many Gamma ray detectors are in the LRM?
18 Gamma ray detectors
What is the battery life of the LRM without backlight?
24 hours
What is the operational temperature range of the LRM?
-15 to 50 degrees Celsius (5 to 122 degrees Fahrenheit)
What type of display does the control module of the LRM use?
LCD (Liquid Crystal Display)
What happens in totalize mode for the LRM?
Outputs from individual detector modules are summed to yield a single Gamma ray and a single Neutron detector value
What should be done prior to shipping the HRM?
Remove the batteries
What is the function of the O-ring in the HRM battery cover?
To create a proper seal
True or False: The LRM can operate on a single 3-volt lithium battery.
True
What is the integration time (response time) for Gamma and Neutron alarms in the LRM?
0.5 second
What should be done if the battery contacts in the HRM show corrosion?
Remove corrosion using a pencil eraser
What is the disposal method for batteries according to regulations?
Dispose via the local HAZMAT Certifier
What indicates the alarm level on the HRM display?
A bar graph extending to the right from the status digit
The greater the alarm level, the further the bar graph extends.
How often is the status of the control module displayed?
Every 20 seconds for 1 second
This is equivalent to the flashing period of an HRM.
What are the status indications displayed on the HRM?
- Audio
- Vibrate
- Light
- Updating
- Low Battery
What should be done after storing the device at low temperatures?
Warm the device at room temperature for 15 minutes
This prevents unreadable displays and false alarms.
What is the function of the Power/Alarm Select switch on the LRM?
To activate the LRM and select alarm modes
The middle position turns the instrument OFF.
What does the Update button do on the LRM?
Recalculates the alarm trip level by averaging the last 16 seconds of data
It should be pressed under specific conditions such as when a ‘U’ appears.
How many Gamma and Neutron modules are configured with the LRM?
18 Gamma modules and 9 Neutron modules
Each container stack should have two Gamma and one Neutron module.
What type of detector is used in the Gamma Ray Detector Module?
Cesium Iodide Scintillator
What is the weight of the Neutron Detector Module?
113.00 grams (4.00 ounces)
What happens if the last detector module is not capped during installation?
It may be exposed to mechanical and water damage
The end cap protects the connector.
What type of battery does the LRM use?
One 3-volt lithium battery (2/3A or 123A size)
What indicates a low battery condition on the LRM?
The Control Module status flashes LOWBAT
What happens during the LRM self-test?
Each Gamma display shows a clockwise circle for 16 seconds
How can the LRM be utilized in totalize mode?
Outputs from the individual detector modules are summed together
This mode increases sensitivity compared to individual detectors.
What should be done if the LRM fails to go into totalize mode?
Turn the LRM off and repeat the initial steps
What is the recommended speed for conducting a summed search with the LRM?
About 2.00 to 6.00 feet per second
What should be avoided to prevent breaking the LRM cable?
Do not pull hard if a detector module gets stuck
What does the status display show if a detector module fails?
‘H’ for Help
What is the purpose of the protective cover for the LRM?
To protect the control module during stowing
True or False: The LRM can be used as a rope.
False
It should not be pulled hard as it may break.
Fill in the blank: The LRM is backpackable and outputs summed values in _______.
[totalize mode]
What is the purpose of the carry bag compression straps?
To configure the carry bag for ease of transport.
This allows for better handling and storage of the equipment.
How might the LRM be worn by a searcher?
In totalize mode, as shown in Figure 19.
Totalize mode allows for comprehensive data collection.
What should NOT be done with the electronics compartments of the AN/PDX-2 components?
Do not open them as there are no user-serviceable parts inside.
Opening could pose safety risks due to high voltage.
What type of battery does the LRM use?
One 3-volt lithium battery, either 2/3A or 123A size.
Recommended brands include Duracell DL 123, Kodak, or Energizer.
What is indicated by the LOWBAT status on the control module?
A low-battery condition.
There should be at least 1 hour of operation after the LOWBAT message appears.
What should be done if the battery cover O-ring is damaged?
Refer to paragraph 3.4.2.1c for replacement.
Proper sealing is essential for the device’s functionality.
What are the field maintenance tasks for the LRM?
Battery replacement, inspections, cleaning, and monthly operational checks.
All failures must be reported via work order in COLTS.
What is the purpose of preventive maintenance?
To conduct routine checks of the equipment before and after each mission.
Ensures reliability and readiness for operations.
How often must the AN/PDX-2 components be calibrated?
On a 24-month cycle.
Calibration is managed by NSWC IHD and ICP.
What should be done with all batteries after use?
Dispose of them via the local HAZMAT Certifier.
Disposal must comply with local, state, and federal regulations.
What is the identiFINDER designed to do?
Search for radioactive gamma sources and measure gamma dose/dose rate.
It also indicates the presence of neutrons.
What are the dimensions of the identiFINDER?
94 mm x 248 mm x 76 mm.
This translates to approximately 3.70 inches x 9.76 inches x 2.99 inches.
What is the weight of the identiFINDER?
1.25 kilograms (2.76 pounds) with batteries.
Weight includes the battery pack.
What is the operating temperature range for the identiFINDER?
-15 to 55 degrees Celsius (5 to 131 degrees Fahrenheit).
This range ensures optimal performance.
What must be done to the identiFINDER after storage at low temperatures?
Warm it at room temperature for 15 minutes before turning it on.
This prevents unreadable displays and false alarms.
What does the identiFINDER use for gamma spectrometry and dose rate measurement?
NaI (TI) scintillator and an internal Geiger Mueller (GM) tube.
These components are crucial for accurate radiation detection.
What does the powerPACK (+) PLUS do?
Powers the identiFINDER and cannot charge other batteries.
Prevents overheating and potential explosions.
What happens if the voltage of the identiFINDER drops below 3.9V?
The device will switch off immediately.
This is a safety feature to prevent data loss.
What should be done if the ‘Low Battery Warning’ message appears?
Connect the charger immediately or save data and switch off the device.
Immediate action is required to prevent data loss.
What type of display does the identiFINDER have?
Monochrome LCD with backlight.
The display size is 61 mm x 43 mm.
What software is required for PC connectivity with the identiFINDER?
winTMCA32 for spectrum transfer and analysis.
This software enables remote setup and control.
What do the two LEDs on the back side of the identiFINDER indicate?
The green LED indicates external power connection, and the orange LED indicates charging status of the powerPACK (+) PLUS.
The orange LED is ON during fast-charging and OFF when fully charged.
How do you charge the powerPACK (+) PLUS?
Insert the powerPACK (+) PLUS into the device, connect a 9V external power supply to 110V AC, and connect the power cable to the identiFINDER.
Alternatively, use the interface box with the identiFINDER system cable.
What should you observe when charging the powerPACK (+) PLUS?
The green LED indicates device operation with external power, and the orange LED indicates charging status.
The orange LED is OFF when the powerPACK is fully charged.
What happens if the powerPACK (+) PLUS is fully charged?
The charge control logics switch to trickle charge mode and the orange charge control LED is OFF.
This prevents overheating and/or explosion of non-rechargeable batteries.
Can the powerPACK (+) PLUS be used to charge batteries?
No, the powerPACK (+) PLUS cannot charge any batteries, including rechargeable ones.
Rechargeable AA batteries should be charged with an external unit.
What is the first step in replacing the powerPACK (+) PLUS?
Turn the identiFINDER off.
What should be done after turning off the identiFINDER to replace the powerPACK (+) PLUS?
Turn the screw on the battery compartment lock counterclockwise until the lid can be removed.
What is the recommended procedure to insert standard batteries into the powerPACK?
Open the powerPACK by unscrewing the screw, insert four new AA-size batteries, then close and tighten the powerPACK.
Ensure the orientation matches the markings outside the powerPACK.
What indicates that the identiFINDER is operating with external power?
The green LED on the back side illuminates.
How to identify the firmware version of the identiFINDER?
Check the boot-up screen for version identification.
Versions may include 3.18.05 and 3.28.08.
What happens if the identiFINDER displays ‘Back-up Battery Empty’?
No data will be saved once the unit is turned off or loses battery power.
A Work Order Request should be submitted for replacement.
What should be done before starting calibration after startup for Version 3.28.08?
Move the identiFINDER away from any radiation sources and press CONTINUE.
What is the suggested default identification setting for EOD use?
Identify four isotopes using a 300-second acquisition time with a 0-second extended time.
This applies to Version 3.28.08 only.
How can the number of isotopes and acquisition time be adjusted?
Access the OPTIONS menu, then navigate to Identify Options and adjust settings.
Settings include time and number of isotopes identified.
What does the letter ‘U’ in the upper right corner of the DOSE screen signify?
It indicates that a successful calibration has not been performed.
What are the basic operational user modes of the identiFINDER?
- DOSE rate mode
- FINDER mode
- IDENT mode
- Alarms for neutron radiation and gamma dose/dose rate
What is displayed in the DOSE Rate mode?
The gamma dose rate or ambient dose rate equivalent H*(10) is displayed numerically and graphically.
What should be done if the detected radioactivity exceeds alarm levels?
Refer to local radiation health procedures and follow training and safety precautions.
What is the function of the FINDER mode?
It localizes the radiation source by detecting an increase in the dose rate level.
How long does the identiFINDER gather background radiation in FINDER mode?
It gathers background radiation for eight seconds before it becomes active.
What does the IDENT mode do?
It acquires the gamma ray spectrum of an unknown source for further analysis.
What should be checked to verify internal battery functioning?
Ensure that BackUpBat says ‘OK’ in the Show Status menu.
What is indicated by a Dose alarm?
The total cumulative dose received by the identiFINDER.
What does a Dose Rate alarm indicate?
The amount of radiation received by the identiFINDER per unit of time.
What mode does the identiFINDER turn into when operated?
IDENT mode
Refer to Figure 32 for visual representation.
What happens if the count rate from the gamma source is too low?
Message ‘MOVE CLOSER TO SOURCE IF POSSIBLE’ appears
What message appears if the count rate is too high?
Message ‘MOVE AWAY FROM SOURCE’ appears
What information is displayed during spectrum accumulation?
Actual dose rate, actual count rate, dead time, remaining acquisition time
What message indicates insufficient statistics during spectrum acquisition for Version 3.18.05?
‘Low Activity! Do you want to continue?’
What message indicates insufficient statistics during spectrum acquisition for Version 3.28.08?
‘Nuclide listing, insufficient counts’
What options are available if the spectrum has not reached sufficient statistics?
Extend identification time and resume acquisition
What should a user do if they want to quit the identification process using Version 3.18.05?
Press ‘NO’, then either ‘CONTINUE’ or ‘SPECTRUM’
What is displayed if the measurement was successful and sufficient counts were obtained?
A nuclide list
What does a likelihood value of 1 indicate in the nuclide list?
Unlikely
What does a likelihood value of 10 indicate in the nuclide list?
Very likely
What classification is given to nuclides used for medical diagnostics?
Medical nuclides (MED)
What classification is given to nuclides applied in the industry?
Industrial nuclides (IND)
What do nuclides marked as NUC signify?
By-products in the production of fissile material
What does NORM indicate?
Naturally Occurring Radioactive Materials
What does the message ‘Nuclide listing: Not in Library!’ signify?
No matching spectrum found in the selected library
What happens if the dose rate exceeds the threshold during data acquisition?
A dose rate alarm indicates exceeding thresholds
What happens when the user presses ‘SAVE/SPECTRUM’?
Measured spectrum will be stored or can be viewed
How many spectra can be stored in the identiFINDER?
100 spectra
What happens if the storage memory is full when trying to save a spectrum?
Message ‘No empty slot found - do you want to overwrite old spec.?’ appears
What indicates a dose rate alarm with permanent illumination?
Red LED
What indicates neutron detection?
Blue LED
What is required to access the OPTIONS menu in the identiFINDER?
Expertise in nuclear spectroscopy and nuclear instrumentation
How can factory defaults be restored in the identiFINDER?
Navigate through OPTIONS to ‘Factory Defaults’ and confirm
What should be done before connecting the identiFINDER to a PC?
Install winTMCA32 and identiFINDER transfer software
What is the typical voltage for fully charged batteries in the identiFINDER?
5V
What does the message ‘Low Battery Warning’ indicate?
IdentiFINDER will power down within a few minutes
What is the first step in changing the COM port number of a USB port?
Select ‘view devices by type’ in Device Manager
What software is used by advanced users to identify isotopes?
winTMCA32
What is the purpose of the identiFINDER transfer software?
To save spectra from the identiFINDER to the PC
What warning is given regarding the electronics compartments of the AN/PDX-2?
Do not open; there are no user serviceable parts
What is the primary function of Field Maintenance for iFINDER?
Battery replacement, inspections, cleaning, and monthly operational checks
All failures will be reported to the NSWC IHD via a work order entry in the COLTS supply chain management database application.
How can users access COLTS?
Through any NIPRNET workstation with Internet access at https://eod.teamcolts.peoavn.army.mil
User registration is required.
What is required to log into COLTS?
A user name and password
Contact an administrator through the COLTS homepage by clicking ‘Request Access to COLTS.’
What should be done before and after each mission regarding equipment?
Conduct preventive maintenance consisting of routine checks
This includes preoperational test procedures, cleaning, and inspecting battery contacts.
What is included in the cleaning process during preventive maintenance?
Remove dust, moisture, and loose dirt with a clean soft cloth
Components may be cleaned with a mild solution of ordinary detergent and water.
How often must the AN/PDX-2 components be calibrated?
Every 24 months
Calibration is performed at the NAVSEA RADIAC Calibration Laboratory (RCL).
What should be done prior to shipping the identiFINDER?
Remove the batteries
This is part of the preventive maintenance process.
Who manages the calibration cycle for the AN/PDX-2?
NSWC IHD and ICP
The Integrated Logistics Support Manager (ILSM) will notify the user as the calibration date approaches.
What is the protocol for disposing of batteries?
Dispose via the local HAZMAT Certifier in accordance with regulations
Materials in the battery are hazardous if compromised or abused.
What should be done if the powerPACK needs replacement?
Contact the NSWC IHD for replacement
Turn in or exchange may be required for replacement of the powerPACK batteries.
What actions should be taken if the user is deployed during the calibration due date?
Contact the ILSM to arrange calibration
This allows for proactive calibration for retrograde systems.
What type of support funding is required for the AN/PDX-2’s service and calibration?
Each service is responsible for providing support funding
For more information, contact the appropriate service detachment via the TSC.
What should be included in requests for access to COLTS?
E-mail and telephone contact information
This is necessary when contacting an administrator.
True or False: The JSEOD User Guide for COLTS contains additional instructions for using COLTS.
True
This document is posted in the Administration-Documents section of COLTS.
Fill in the blank: Preventive maintenance consists of ______ checks of the equipment before and after each mission.
routine
What is the recommended action if battery contacts are found to be corroded?
Remove corrosion using a pencil eraser
