USER MANUAL RaySafe X2
Please consult the built-in help in your base unit to ensure that you read a version corresponding to your specific instrument setup. © 2014.03 Unfors RaySafe 5001083-3 All rights are reserved. Reproduction or transmission in whole or in part, in any form or by any means, electronic, mechanical or otherwise, is prohibited without the prior written consent of the copyright owner.
RaySafe X2 User Manual CONTENTS GENERAL About the X2 system Navigate the base unit Change parameter view Analyze waveforms Connect the base unit to a computer Connect to computer using Bluetooth Access stored measurements Upgrade the base unit software Charge the battery Use the flexi stand Setting: Screen brightness Setting: Time and date Final disposal of the system Regulatory information R/F SENSOR Measure with R/F Sensor R/F: Measurement definitions Setting: Dose unit Setting: Ignore prepulses Setting:
RaySafe X2 User Manual LIGHT SENSOR Measure with Light Sensor Light: Measurement definitions Setting: Units MAS Measure mAs mAs: Measurement definitions Setting: Ignore prepulses Setting: Stop delay APPLICATION NOTES Barium glass Siemens SOMATOM 4
RaySafe X2 User Manual ABOUT THE X2 SYSTEM The RaySafe X2 consists of a base unit, sensors and the X2 View computer software. The sensors options are: R/F, for radiography and fluoroscopy measurements, with or without a phantom between the sensor and the X-ray source. MAM, for all kinds of mammography measurements. CT, an ionization chamber for measurements on CT dose applications. Light, for illuminance measurements and luminance measurements on monitors and light boxes.
RaySafe X2 User Manual NAVIGATE THE BASE UNIT The base unit has a touch screen and three buttons. Swipe up and down on the home screen to access your previously recorded measurements. Swipe right from the home screen to go to the setup screen, from which you can make settings and view information about the system, for example the calibration date for a connected sensor. Tap on a parameter to get larger digits, one parameter at a time. You can also measure in this mode.
RaySafe X2 User Manual CHANGE PARAMETER VIEW To change the number of parameters showed on the home screen, press the menu button and select Change view. There are two views to toggle between: All measured parameters, or Four key parameters of your own choice. Press and hold on a box to select which parameter to show.
RaySafe X2 User Manual ANALYZE WAVEFORMS View a single parameter by tapping on that parameter on the home screen. Swipe left to go to the waveform screen. The dark line represents an average of the measured values. If there are more values than possible to show on the screen, the light blue pixles represent the range of these values. The dashed lines indicate the measured parameter values, in this case average dose rate and time. Tap on the button in the upper right corner to analyze the waveform.
RaySafe X2 User Manual CONNECT THE BASE UNIT TO A COMPUTER Connect the base unit to a computer running X2 View using a USB cable. X2 View can be installed from the X2 View CD, that came with the system. If you measure, the results will automatically show up in X2 View. You can also select Import from Base Unit in the File menu to import measurements stored in the base unit. From X2 View, you can export measurements to Excel and other software.
RaySafe X2 User Manual CONNECT TO COMPUTER USING BLUETOOTH Connect the Bluetooth adapter to a SENSOR port on the base unit. A gray Bluetooth status symbol appears in the upper right corner of the screen. X2 View will automatically search for base units. The first time you connect, you will have to select your base unit from the Bluetooth menu in X2 View. The Bluetooth status symbol will turn white when connected. When restarting X2 View, the base unit will automatically get connected.
RaySafe X2 User Manual ACCESS STORED MEASUREMENTS Measurements from previous sessions are automatically stored in the base unit. The memory allows about 10000 measurements. When the memory is full, the oldest measurements are automatically deleted. To access stored measurements, connect the base unit to a computer running X2 View and select Import from base unit under the File menu. The measurements are sorted by date and time.
RaySafe X2 User Manual UPGRADE THE BASE UNIT SOFTWARE Connect the base unit to a computer running X2 View and make sure that the computer is connected to internet. If there are any updates available, the X2 Online field will show a notification symbol. Click on that symbol and follow the instructions to upgrade the software.
RaySafe X2 User Manual CHARGE THE BATTERY To charge the base unit, connect it to a wall socket with the included power supply. The charging time is approximately 4 hours. The battery lasts for about one day of extensive usage, which means that it is recommendable to start your working day with a fully charged unit. The X2 system automatically enters power saving mode when idle for some minutes. If the system does not wake up by radiation or the buttons on the front, press the power button.
RaySafe X2 User Manual USE THE FLEXI STAND The flexi stand can be used in many different setups. Below are some examples.
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RaySafe X2 User Manual SETTING: SCREEN BRIGHTNESS Adjust the screen brightness by sliding the bar. Reduce the brightness to prolong the base unit battery time.
RaySafe X2 User Manual SETTING: TIME AND DATE Set time and date according to your local time. Measurements are automatically stored in the base unit, sorted by time. You can view them afterwards using X2 View.
RaySafe X2 User Manual FINAL DISPOSAL OF THE SYSTEM Final disposal is when the user disposes of the product in such a way that it can no longer be used for its intended purpose(s). In the European Union (the WEEE directive), this label indicates that this product should not be disposed of with household waste. This product should be disposed of at an appropriate facility to enable recovery and recycling. Unfors RaySafe supports users in: Recovering reusable parts.
RaySafe X2 User Manual REGULATORY INFORMATION N28111 Unfors RaySafe K.K.
RaySafe X2 User Manual MEASURE WITH R/F SENSOR Place the connected sensor centered in the field with the crosshair towards the X-ray source. The angle of the sensor in the horizontal plane has no impact on the measurement result. Expose. Read the result. Tip! Tap a parameter to get large digits, parameter information, and, if applicable, waveform.
RaySafe X2 User Manual between these by swiping sideways. Note! The dark line centered in the circle represents the active area of the sensor. The lines on the side of the housing marks the vertical position.
RaySafe X2 User Manual R/F SENSOR: MEASUREMENT PARAMETER DEFINITIONS Dose and HVL are calculated from all recorded data. Dose rate is the average dose rate, calculated as dose/time. Time starts the first time the dose rate waveform reaches 50% of peak, and ends the last time it drops below 50%. Intermediate values are time since start trig. kVp and total filtration are calculated from an average of samples above ~90 % of peak signal level.
RaySafe X2 User Manual SETTING: DOSE UNIT Select if all dose units should be displayed in Gray or Röntgen. 1 Gy = 114.1 R X2 systems approved by PTB does not have the possibility to change the dose unit to Röntgen (R).
RaySafe X2 User Manual SETTING: IGNORE PREPULSES Use the ignore prepulses setting to remove one or many unwanted prepulses from the measurement. Ignore prepulses = 0, the whole exposure is captured. Ignore prepulses = 1, the (first) prepulse is excluded from the measurement. Note! This setting will affect all parameters, including the dose measurement.
RaySafe X2 User Manual SETTING: STOP DELAY The stop delay setting defines for how long the instrument will wait for more radiation to include in the same measurement. Use a longer stop delay when measuring on a pulsed fluoroscopy system or to get a prepulse recorded into the same measurement as the following ordinary exposure. Stop delay setting longer than the time between pulses (t>T), will result in one long measurement.
RaySafe X2 User Manual MEASURE WITH MAM SENSOR The MAM sensor is ready to measure dose and HVL for all anode/filter combinations without changing any settings. Place the connected sensor centered in the field, with the crosshair 6 cm (4 cm in the US) from the examination table front edge (A). The angle in the horizontal plane has neglectable impact on the measurement result.
RaySafe X2 User Manual Tip! Tap a parameter to get large digits, parameter information, and, if applicable, waveform. Switch between these by swiping sideways. Note! The dark line centered in the circle represents the active area of the sensor. The lines on the side of the housing marks the vertical position.
RaySafe X2 User Manual MO/RH KV WITH MAM SENSOR Place the sensor centered and 6 cm from the chest wall. Place the 2 mm Al filter on the sensor. Be sure to cover the active sensor area. Recommended generator setting ≥ 100 mAs. Select Mo/Rh 2 mm Al in the sensor settings.
RaySafe X2 User Manual W/AL SCANNING WITH MAM SENSOR Mount the X2 MAM sensor in the holder. Place the holder centered on the table, tight to the chest wall. Settings: X2: Generic (W/Al if kVp is desired), Stop delay: 2 s Philips MicroDose: 8 mAs Fischer SenoScan: 70 mA Adani: fastest scan speed Always use the compression paddle, positioned as high as possible. Do not use the AEC functionality.
RaySafe X2 User Manual MAM SENSOR: MEASUREMENT PARAMETER DEFINITIONS Dose and HVL are calculated from all recorded data. Dose rate is the average dose rate, calculated as dose/time. Time starts the first time the dose rate waveform reaches 50% of peak, and ends the last time it drops below 50%. Intermediate values are time since start trig. kVp is calculated from an average of samples above ~33 % of peak signal level. Pulses are counted at every start trig with more than 4 ms since last end trig.
RaySafe X2 User Manual SETTING: BEAM QUALITY The MAM sensor is ready to measure dose and HVL for all beam qualities without any settings. However, to get a kVp reading you have to select a beam quality. If your beam quality is not in the list, you have to change your anode/filter combination to one of the listed.
RaySafe X2 User Manual SETTING: DOSE UNIT Select if all dose units should be displayed in Gray or Röntgen. 1 Gy = 114.1 R X2 systems approved by PTB does not have the possibility to change the dose unit to Röntgen (R).
RaySafe X2 User Manual SETTING: STOP DELAY The stop delay setting defines for how long the instrument will wait for more radiation to include in the same measurement. Use a longer stop delay when measuring on a pulsed fluoroscopy system or to get a prepulse recorded into the same measurement as the following ordinary exposure. Stop delay setting longer than the time between pulses (t>T), will result in one long measurement.
RaySafe X2 User Manual SETTING: IGNORE PREPULSES Use the ignore prepulses setting to remove one or many unwanted prepulses from the measurement. Ignore prepulses = 0, the whole exposure is captured. Ignore prepulses = 1, the (first) prepulse is excluded from the measurement. Note! This setting will affect all parameters, including the dose measurement.
RaySafe X2 User Manual MEASURE WITH CT SENSOR Push the connected sensor tight into the phantom ... ... or use the flexi stand for positioning free in air. Expose. Read the result.
RaySafe X2 User Manual Note! The effective length of the CT sensor is 100 mm, and is marked with center and edge lines on the tube. Tip! Tap a parameter to get large digits, parameter information, and, if applicable, waveform. Switch between these by swiping sideways.
RaySafe X2 User Manual MEASURE KVP ON CT For kVp measurements, use an R/F sensor. Position it flat on the table and expose without rotation, using scout, tomogram or topogram mode. Use no or slowest table movement.
RaySafe X2 User Manual CT SENSOR: MEASUREMENT PARAMETER DEFINITIONS Dose is calculated from all recorded data. Dose rate is the average dose rate, calculated as dose/time. For measurements longer than 3 s, intermediate readings are moving averages. Time starts the first time the dose rate waveform reaches 50% of peak, and ends the last time it drops below 50%. Intermediate readings are time since start trig. Dose length product is dose·10 cm.
RaySafe X2 User Manual SETTING: DOSE UNIT Select if all dose units should be displayed in Gray or Röntgen. 1 Gy = 114.1 R X2 systems approved by PTB do not have the possibility to change the dose unit to Röntgen (R).
RaySafe X2 User Manual SETTING: STOP DELAY The stop delay setting defines for how long the instrument will wait for more radiation to include in the same measurement. Use a longer stop delay when using a phantom and a slow rotation rate, to prevent that an axial scan will be cut into two measurements. Stop delay (t) setting longer than the time between pulses (t>T), will result in one long measurement.
RaySafe X2 User Manual MEASURE WITH LIGHT SENSOR Luminance: Place the connected sensor with the aperture centered on the area you want to measure, and with luminance selected on the sensor wheel. Illuminance: Place the connected sensor with the diffuser in the direction you want to measure, and with illuminance selected on the sensor wheel. The sensor is constantly measuring. If you want to store a value, press the button once the reading is stable. The measurement will continue below the stored value.
RaySafe X2 User Manual Tip! Tap a parameter to get large digits and parameter information. Switch between these by swiping sideways. Zero adjust: If prompted to make a zero adjust, select zero adjust (0) on the sensor wheel. The zero adjust will take approximately 10 s. Note! Store the sensor with the sensor wheel in a closed position (0 or illuminance), to prevent dust in the optics.
RaySafe X2 User Manual LIGHT SENSOR: MEASUREMENT PARAMETER DEFINITIONS Illuminance is the amount of light incident on a surface. Luminance is the amount of light emitted from a surface.
RaySafe X2 User Manual SETTING: UNITS Select between cd/m² and lux, or fL and fc 1 cd/m² = 0.2919 fL (luminance) 1 lux = 0.
RaySafe X2 User Manual MEASURE MAS Switch off the X-ray generator. Remove the jumper. Connect the mAs cable to the base unit and to the generator. Switch on the X-ray generator.
RaySafe X2 User Manual Make an exposure and read the result. Note! Users of RaySafe X2 mAs must be aware of the potential damage to generators and of electrical human hazards in case of improper connection or damaged equipment. RaySafe X2 mAs is intended for use only by personnel authorized in performing calibration and repair of X-ray equipment. Tip! You can measure with the R/F or MAM Sensor and the mAs cable both connected to get radiation and generator current values at the same time.
RaySafe X2 User Manual MAS: MEASUREMENT PARAMETER DEFINITIONS mAs is calculated from all recorded data. mA is calculated as an average of all samples above 50% of peak. Rush currents are automatically removed. Intermediate readings are based on samples since last reading. For long measurements, the final reading is recorded approximately 1–2 s before end trig. Time starts the first time the current reaches 50% of the calculated mA and ends the last time it drops below 50%.
RaySafe X2 User Manual SETTING: IGNORE PREPULSES Use the ignore prepulses setting to remove one or many unwanted prepulses from the measurement. Ignore prepulses = 0, the whole exposure is captured. Ignore prepulses = 1, the (first) prepulse is excluded from the measurement. Note! This setting will affect all parameters, including the dose measurement.
RaySafe X2 User Manual SETTING: STOP DELAY The stop delay setting defines for how long the instrument will wait for more radiation to include in the same measurement. Use a longer stop delay when measuring on a pulsed fluoroscopy system or to get a prepulse recorded into the same measurement as the following ordinary exposure. Stop delay setting longer than the time between pulses (t>T), will result in one long measurement.
RaySafe X2 User Manual APPLICATION NOTE: BARIUM GLASS kV correction for some GE systems made in China 2010/2011 with K9 Barium glass mirror in the collimator This application note is not yet available. Please contact technicalsupport@raysafe.com for more information.
RaySafe X2 User Manual APPLICATION NOTE: SIEMENS SOMATOM CT kV measurements on Siemens SOMATOM CT Scanners This application note is not yet available. Please contact technicalsupport@raysafe.com for more information.
