Can both the TNT 12000 display and the software (Excel Add-in or Ansur) be used at the same time?
No. One should pick the data-collection and display device that best meets the needs of particular application scenarios. For example: 1st call triage of reported X-ray system problems might be best managed using the TNT 12000 display unit and the appropriate detector or combination, while scheduled inspections or calibration might best be served by an Ansur visually-guided inspection procedure, or an assessment of image quality vs. dose might best be served by the DoseMate/Excel Add-in combination.
Does the TNT12000 display store any measurements? Can you save measurements in the display?
No. The TNT 12000 display shows only the last measurement. If measurements need to be saved, the Excel Add-in is recommended. If both measurements and other inspection results in an overall inspection procedure need to be saved, then a visually-guided inspection procedure should be created using the Ansur TNT 12000 Plug-in. This inspection procedure documents the entire process and all inspection results (physical/visual inspection, mechanical inspection/adjustments, electronic measurements, lubrication steps, replacement of consumable items, etc.)
How accurate is the waveform in the Excel Add-in or Ansur Test Guide (Ansur Plug-in)?
The waveform is accurate enough to assess whether there are problems in the X-ray tube or generator not disclosed by the numeric measurements. To obtain more accurate waveforms or to perform calibrations using the waveforms the 35080M199 X-Ray Scopemeter is recommended.
How can another ion chamber be added to the DoseMate?
Ion chambers can be added to the DoseMate using the Display, through the Excel Add-in, or with Ansur software.
How can maximum dose be easily measured for Flouro (10 R/min maximum allowed by law)?
With the TNT 12000 solid-state detector or DoseMate dosimeter set to fluro mode, position either detector with the measuring side facing the X-ray tube at the prescribed distance from the focal spot. Completely block the image receptor using copper or lead sheets and begin the test.
How can the dose be accumulated over several exposures?
Turn Auto-reset OFF and the DoseMate electrometer will accumulate dose values. Turn Auto-reset ON to allow the DoseMate electrometer to reset between exposures.
How can the firmware and/or software be updated by the end-user? Is there a fee?
Any firmware or software upgrades that do not affect calibration of the TNT 12000 are available on the Fluke Biomedical website under Support: Software Downloads.
How can the frame-rate of a fluoroscopic exposure be measured?
Use the TNT 12000 solid state detector in Fluro-mode.
How do I interpret the battery charging indicator?
There are five different possibilities:
- Blue - Display or detector is connected to a power source and the battery is fully charged.
- Green - Display or detector is connected to a power source and the battery is charging.
- OFF - Display or detector is not connected to a power source and is operating on battery power.
- Yellow - Display or detector battery has approximately 20% of charge left.
- Red - Display or detector battery has approximately 10% of charge left and will turn off in two minutes.
How does the TNT 12000 measure HVL in a single exposure?
TNT 12000 uses a proprietary multi-element solid-state detector that simultaneously measures the variable attenuation experienced by adjacent elements to determine the HVL with just one exposure.
How many exposures are required to measure a variety of different X-ray beam parameters?
One. All measured parameters (kV, dose, time, HVL) are displayed all the time with each exposure, saving valuable setup time. Because TNT 12000 always defaults to the previous settings when powered down, many repetitive QA and calibration routines can be set up and completed by the stroke of a single on/off key.
Is it possible to communicate between the TNT 12000 and the mA/mAs meter 35035?
No, the 35035 is a standalone unit. The TNT12000 and the DoseMate dosimeter are both upgradable to include mA/mAs measurement functionality. These upgrades allow mA/mAs measurement values to be included in the diagnostic X-ray information displayed.
Is it possible to use the TNT 12000 for dental/panoramic measurements?
Yes it is possible to perform kV and other X-ray tube parameter measurements for the standard dental X-ray tube (TNT12000WD may need to be attached to a camera tripod to hold it in place in the beam.) Panoramic dental X-ray, like other modalities where the X-ray tube is rotating/moving, requires the tube be kept in place (not moving) to measure X-ray tube parameters. If dose is the parameter of interest, use DoseMate and an appropriate ion chamber capable of detecting X-ray energy in a 360 o arc about its center. There is no special calibration needed in either case.
Is the display unit dedicated to a specific solid state detector or electrometer?
No. The display unit will work with any TNT 12000 solid-state detector or DoseMate.
Is the kV accuracy dependant on dose?
A minimum of 500 mR/min doserate is needed to get accurate kV results.
Is the TNT12000 compatible with the IEC 61674?
Yes. The IEC 61674 is about dosimeters with ionization chambers and/or semi-conductor (solid-state) detectors as used in X-ray diagnostic imaging and contrary to other kVp meters in the Fluke Catalogue the TNT12000 is compatible to this European Standard.
Is there a special calibration for GE AMX4 measurements?
Yes and it is standard on all TNT 12000 systems.
Keithley Triad is the gold standard for accuracy in X-ray testing. How does TNT 12000 and DoseMate compare?
TNT 12000 solid-state detector is slightly lower in accuracy (but much smaller, wireless, and easier to use than the Keithley Triad), and the DoseMate/ion chamber combination is equal to or greater accuracy compared with the Keithley Triad (both use the same ion chambers).
There are two sets of cross-hairs on the TNT 12000 solid state detector. What are they for?
Each of the two sets of cross-hairs on the TNT 12000 solid state detector are marked as to their use. The gray-colored cross-hairs are for Rad/Fluro, while the red-colored cross-hairs are for Mammo. These aid in centering the detectors in the X-ray beam
What are the different filter options for the TNT 12000?
There are two options.
- Standard: Mo/Mo for Mammographic and W/Al for Diagnostic-standard calibration
- Optional: Mo/Rh, Mo/Al, Rh/Rh, Rh/Al for Mammographic
What are the PPV units and measurement?
PPV means practical peak voltage and is a measurement used outside the USA for assessing X-ray tube performance.
What are the uses of the 15 cc and 150 cc ion chambers used with DoseMate?
A 15 cc ion chamber is useful for Radiographic X-ray systems and Mammographic X-ray systems; a 150 cc ion chamber is useful for Flouroscopic X-ray systems (e.g., input dose to image intensifier), Scatter assessment, and any situation where the increased sensitivity of the chamber allows measurement of lower dose-rates.
What does the message "Detector Zero Error" mean?
The TNT 12000WD was performing an internal amplifier nulling process but detected a start of X-ray shot and gave an error message.
What is the advantage of ZigBee over Bluetooth for wireless communications?
Bluetooth wireless technology has several disadvantages that ZigBee does not. First, when turning on a Bluetooth-equipped device, the transmitting unit will search for available receivers and present a list from which the correct device must be selected. ZigBee units are paired, so upon scanning for detectors one does not get every wireless device in the local area, but only those ZigBee units paired with the companion TNT 12000 display or computer. Also, the power output is lower so ZigBee does not interfere with nearby medical devices, and greatly extends battery life of both display and detectors.
What is the difference between the Excel Add-In and Ansur Test Automation Software?
Both the Excel add-in and Ansur Test Automation software automatically capture test data and facilitate data management and reporting. The Excel add-in collects measured values and populates a customizable Microsoft Excel spreadsheet template; A MQSA-specific template is included for Mammo applications. Ansur provides a visually-guided inspection procedure that reduces human error with step-by-step visual instructions, auto-configuration of compatible test instruments, auto-data collection of measured values from compatible test instruments, auto-comparison of measured values against pre-determined test limits, and objective determination of Pass/Fail. All inspection results are included in a single, test result file and customizable test report that can be printed or stored digitally. Ansur Test Automation software is also compatible with a range of CMMS software systems. All users may utilize the Excel add-in for reporting purposes. Users who need to standardize testing and reporting procedures (especially when performed by multiple associates) and minimize risk of human error benefit from Ansur Test Automation software.
When balancing photo timers, the dose measurement needs to be made in the table Bucky tray, yet the TNT 12000 solid state detector does not fit into the Bucky. How can these measurements be made to facilitate the balancing of the photo timers?
Use the DoseMate and the 15 cc ion chamber in the table Bucky tray to obtain time measurements.
When I connect my QED6 to the serial port of my docking station (and my computer is docked), my Ansur test template for my QED6 hangs during tests. I have to power cycle QED6 clear it and this interrupts my testing. What is happening? What should I do?