User Manual RaySafe Solo
© 2013.01 Unfors RaySafe 5001053-C 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 Solo User Manual – Contents Contents Introduction..................................................................................................... 5 Versions............................................................................................................ 5 About this user manual.................................................................................... 5 The RaySafe Solo...............................................................................................
RaySafe Solo User Manual – Contents Setup of Bluetooth communication............................................................... 33 Getting help....................................................................................................34 Accessories...................................................................................................... 35 The RaySafe flexi stand................................................................................. 35 The RaySafe OPG holder...............
RaySafe Solo User Manual – Introduction Introduction Versions This user manual covers the following articles: base unit version: 8221011 detector version: 8221022 8222015 8222016 8222017 8222018 8222019 8222020 8222021 8222022 About this user manual This user manual is intended to assist users in the safe and effective operation of the product described. Before attempting to operate the product, you must read these instructions for use, noting and strictly observing all WARNINGS and CAUTION notices.
RaySafe Solo User Manual – The RaySafe Solo The RaySafe Solo The RaySafe Solo consists of a base unit and a detector. Communication between detector and base unit is purely digital, thereby minimizing sensitivity to mechanical or electrical stress. The RaySafe Solo detector options • The R/F detector has two sensors: R/F high is designed for conventional, high dose rate measurements. R/F low is designed for low dose rate measurements.
RaySafe Solo User Manual – The RaySafe Solo Easy to use The RaySafe Solo is very easy to use. The built-in active compensation automatically applies corrections for different beam qualities, filtrations and temperatures. During fluoroscopy measurements the displayed values are continuously updated. If your instrument is equipped with the RaySafe Solo PC kit, data is sent on the serial port to your computer, where RaySafe Xi View shows numerical data as well as waveforms.
RaySafe Solo User Manual – Getting Started Getting Started 1. Connect the detector to the base unit with one of the two (2 and 10m) cables. 2. Position as required for the detector, see the following chapters. 3. Turn on the RaySafe Solo (ON/OFF key, see below), and the instrument specific setup information is displayed. In the SENSOR MENU a detector or sensor field for your application can be selected. 4. The instrument is now in MEASURE MODE and ready to measure.
RaySafe Solo User Manual – Getting Started Battery and Charger The RaySafe Solo base unit has a chargeable 7.4 V Li-ion battery, providing approximately 20 – 40 hours of operation (depending on selected detector and whether Bluetooth is used). Since chargeable batteries have a self discharge current, RaySafe strongly recommends fully charging the battery before first use. Battery level is displayed, together with setup information, when the instrument is switched on.
RaySafe Solo User Manual – R/F Measurement R/F Measurement Using R/F, RAD, Dose or DENT version. For best accuracy, center the selected sensor field (R/F low, R/F high, RAD, DENT low or DENT high) and position the long axis of the sensor field perpendicular to the anode-cathode axis of the tube. 1. SENSOR MENU R/F low (R/F and Dose) Sensor for conventional low dose rate measurements < 1 mGy/s (7 R/min), normally after a phantom.
RaySafe Solo User Manual – R/F Measurement 2. MEASURE MODE After an offset adjustment, the instrument is in MEASURE MODE. The displayed values are updated after each exposure, or continuously after 4 seconds of fluoroscopy. kVp kVp (for the R/F high, RAD or DENT high sensor at adequate signal levels) or kV (R/F low or DENT low). (Not available on RaySafe Solo Dose.
RaySafe Solo User Manual – R/F Measurement All values are stored in a non-volatile memory and are valid until manually changed. At start up (after the battery status information), valid Trig delay, kVp delay and Calc. delay are displayed in sequence. (Factory settings in bold.) Trig delay A delay in ms after the normal trig of the instrument. Utilize when an unwanted part of an exposure, such as a pre-pulse, should be excluded from the measurement. No measurements are performed during the Trig delay.
RaySafe Solo User Manual – Mammography Measurement Mammography Measurement Place the detector along the X-ray tube axis (with the cable end pointing towards the X-ray machine). Make sure that the center of the MAM sensor square is placed 6 cm from the examination table front edge. 1. SENSOR MENU Sensor for mammography measurements with submenu for selection of beam qualities, see list to the right (depending on configuration).
RaySafe Solo User Manual – Mammography Measurement Dose rate Gy or R per s, m or h Time ms, s HVL mm Al (only with optional HVL kit) 3. SETUP MENU Press SELECT to enter the SETUP MENU (from MEASURE MODE) and STEP to step between setup parameters. All values are stored in a non-volatile memory and are valid until manually changed. At start up (after the battery status information), valid Trig delay, kVp delay and Calc. delay are displayed in sequence. (Factory settings in bold.
RaySafe Solo User Manual – Mammography Measurement Auto Power Off Never, or after 5, 20 or 60 minutes of inactivity. Info Displays the serial number (S/N) and firmware version of the connected detector and the RaySafe Solo base unit and the calibration date for the selected sensor. There is also a possibility to reset the instrument settings to factory defaults.
RaySafe Solo User Manual – CT Measurement CT Measurement The RaySafe Solo CT detector is an ion chamber with a 10 cm active length and a built-in bias voltage. The center and the edges (+ 5 cm and - 5 cm) of the active volume are marked on the phantom adapter. An automatic correction of temperature and pressure will be applied for all dose measurements. The temperature sensor is positioned inside the active ionization chamber and the measurement is corrected for the true temperature inside the phantom.
RaySafe Solo User Manual – CT Measurement 1. SENSOR MENU Ion chamber sensor CT Dose Press STEP to step between sensors and SELECT to select a sensor. Note! When turning on the base unit with the RaySafe Solo CT detector connected, “Stabilizing” will be displayed for a few seconds while the electronics are stabilizing. 2. MEASURE MODE After an offset adjustment, the instrument is in MEASURE MODE. The displayed value is updated after each exposure.
RaySafe Solo User Manual – CT Measurement Calc. delay Defined as the dead time after end trig, before data is calculated. Default is 0.5 s but it is recommended to use a longer delay when measuring on pulsed fluoroscopy where the time between pulses may exceed 0.5 s. (0.5, 2, 4, 6, 7 s) Backlight Display lighting option. (off, 2, 5, 10 s, on) Auto Power Off Never, or after 5, 20, 60 minutes of inactivity.
RaySafe Solo User Manual – Light Measurement Light Measurement The RaySafe Solo light detector is designed to measure luminance on LCD and CRT monitors, as well as light boxes, and illuminance for diagnostic X-ray applications. The choice between luminance and illuminance is automatic depending on whether the luminance tube is mounted or not. 1. SENSOR MENU Illuminance For illuminance measurements. LuminanceLCD For luminance measurements on LCD.
RaySafe Solo User Manual – Light Measurement Press STEP when in MEASURE MODE to freeze and move the measured value to the second line of the display. A new press on STEP will move a new measured value to the second line of the display. Store the measured value (and send it via the RS-232 interface) in the RaySafe Solo memory by pressing SELECT. A memory counter (Mem #) will be displayed at the very bottom of the display. BARCO STEP • STEP • 3.
RaySafe Solo User Manual – Light Measurement All values are stored in a non-volatile memory and are valid until manually changed. (Factory settings in bold.) Offset adjustment To ensure the highest level of accuracy, Unfors RaySafe recommends performing a manual offset adjustment when making luminance measurements below 2 cd/m2 or when making illuminance measurement below 1 lux. Cover the sensor before performing the offset adjustment.
RaySafe Solo User Manual – mA/mAs Measurement mA/mAs Measurement Note! It is possible to measure mAs simultaneously with other measurements with RaySafe Solo R/F. The instrument will trig on radiation, not on the current in the RaySafe mAs cable. Any initial rush current will thus be excluded. The measured mAs value automatically appears in MEASURE MODE on the display. 1. Turn off the X-ray generator. 2. Remove the jumper of the mA/mAs port in the generator. 3.
RaySafe Solo User Manual – mA/mAs Measurement 2. MEASURE MODE After an offset adjustment, the instrument is in MEASURE MODE. The displayed values are updated after each exposure or continuously after 4 seconds of fluoroscopy. mAs mAs mA mA Time ms, s Pulses pulses 3. SETUP MENU Press SELECT to enter the SETUP MENU (from MEASURE MODE) and STEP to step between setup parameters. When in the SETUP menu, the active selection will blink.
RaySafe Solo User Manual – mA/mAs Measurement Info Note! Displays the serial number (S/N) and firmware version of the detector and the RaySafe Solo base unit and the calibration date for the selected sensor. There is also a possibility to reset the instrument settings to factory defaults. It is recommended to use a laptop operating on battery or a Bluetooth connection when capturing waveforms or transferring data to a computer running RaySafe Xi View.
RaySafe Solo User Manual – mA/mAs Measurement Passive mAs It is possible to measure mAs simultaneously when using the RaySafe Solo R/F with mAs. The instrument will trig on radiation, not on the current in the mAs cable. Any initial rush current will thus be excluded. The measured mAs value automatically appears in MEASURE MODE on the display. On some X-ray equipment the tube current does not drop below 25% of peak at the end of the exposure or the generator give a second current pulse within 0.5 ms.
RaySafe Solo User Manual – Measurement definitions Measurement definitions Figure 1 illustrates the RaySafe Solo parameter definitions available on a typical waveform. In most situations the default settings are suitable for accurate measurements. In certain situations advanced users can change the measuring definitions of the RaySafe Solo by activating Trig delay and/or Trig level settings.
RaySafe Solo User Manual – Measurement definitions The dose is accumulated from the start trig point plus Trig delay until the end trig. Figure 2. Trig delay activated Note! The trig level setting (25, 50 or 75 %) affects the dose measurement. Note! The backscatter protection of the RaySafe Solo sensor may cause differences in readings compared to ion chambers. If both are placed directly against an object, i.e. image receptor or lead apron, the RaySafe Solo will read lower compared to an ion chamber.
RaySafe Solo User Manual – Measurement definitions Dose Rate The RaySafe Solo calculates dose rate as dose/exposure time if the exposure time is less than 6 seconds. After an exposure longer than 6 seconds, a dose rate value recorded approximately 2 seconds before end trig will be displayed. Figure 3. Pulsed fluoroscopy kV/kVp The RaySafe Solo calculates kVp on the R/F high, RAD or DENT high sensor if the signal level is high enough, otherwise kV average will be displayed.
RaySafe Solo User Manual – Measurement definitions Figure 4. kV and kVp Table: Active compensation on kV measurements Sensor Filtration kV/kVp R/F low Max. 15 mm Al kV R/F high RAD Max. 15 mm Al kVp (when signal level is high enough) DENT low Max. 1 mm Cu or equivalent kV DENT high Max. 1 mm Cu or equivalent kVp (when signal level is high enough) Use a kVp delay on machines with a slow rising output. 150 ms on dental single phase machines and 1000 ms on a fluoroscopy machine is recommended.
RaySafe Solo User Manual – Measurement definitions Figure 5. 75 % trig level activated (figure also applies to 25 and 50 % trig level settings). Please note that the trig level setting affects the dose measurement. Single phase generators (normally dental applications) may have slowly increasing amplitude characteristics for approximately 100 ms. It is then recommended to activate a higher trig level in the SETUP MENU after the first exposure. Pulse The RaySafe Solo counts pulses from 1 to 9999.
RaySafe Solo User Manual – Measurement definitions HVL is an indication of the beam quality and is defined as the amount of Al filtration, measured in mm, needed to reduce the dose in half. HVL is kVp dependent and HVL should not be confused with total filtration. HVL is available for R/F, MAM, MAM dose, RAD, Dose and DENT detectors equipped with the HVL kit option.
RaySafe Solo User Manual – RaySafe Solo PC kit RaySafe Solo PC kit The optional RaySafe Solo PC kit contains: • RaySafe Xi View software • serial cable • serial to usb converter • optional: bluetooth adapter RaySafe Xi View RaySafe Xi View is suitable for • viewing waveforms • storing measurements • transferring data to Excel or other software Note! The latest version of RaySafe Xi View is available on http://www.raysafe.com Figure 6. RaySafe Xi View main window.
RaySafe Solo User Manual – RaySafe Solo PC kit Transfer data to a computer To view the waveform in the RaySafe Xi View and/or transfer measured data to a PC, connect a serial cable or Bluetooth module (option) to the communication port on the RaySafe Solo base unit. Installing RaySafe Xi View The RaySafe Solo is delivered with a Resource CD which contains the RaySafe Xi View software. Insert the CD in a PC and a menu will appear for installation.
RaySafe Solo User Manual – RaySafe Solo PC kit 7. Start RaySafe Xi View and go to File – Settings and enter the correct COM port. Press the Start button and “Started waiting for data” will appear in the bottom left corner of the screen. Go to the SETUP MENU of the instrument and select the INFO option. Scroll until “Xi View test” appears and press SELECT. Test data should now appear on the RaySafe Xi View screen. Getting help A complete manual for RaySafe Xi View can be found in the Help menu.
RaySafe Solo User Manual – Accessories Accessories The RaySafe flexi stand The RaySafe flexi stand can be used in many different ways. Assemble it to fit your needs. The RaySafe OPG holder 1. If the surface on the sensor or secondary aperture is not metallic, affix the provided metal plate to the surface. 2. Mount the OPG holder (magnets on the back) on the secondary aperture and place the detector in the holder. 3. Put the alignment lid on.
RaySafe Solo User Manual – Accessories 4. Expose and align the fluorescent line with the preferred black line (selected sensor) on the alignment lid. Soften the lighting if needed and comply with your local regulations of radiation protection when adjusting the place of the holder. 5. Remove the lid and measure. (Repeat step 3 – 4 if needed.) The RaySafe Cassette holder The RaySafe cassette holder can be used for measuring dose to film or when checking the exposure control, e.g. AEC systems.
RaySafe Solo User Manual – Tips and Tricks Tips and Tricks Arrangement of Measurement Make sure nothing is in the X-ray field when measuring with the RaySafe Solo. The fact that the dose is proportional to 1/d2 (where d is the FDD – Focus to detector Distance) may be used when positioning the sensor. d Sensor Position The solid state sensors in the RaySafe Solo detector are positioned approximately 7 mm beneath the detector surface. The position is marked with a line on the aluminium housing.
RaySafe Solo User Manual – Tips and Tricks Vertical Detector Placement When measuring on a mammography machine with a horizontal beam, such as MultiCare Platinum, let the pressure from the compression paddle fix the RaySafe Xi mammography detector in position. Put the detector with the cable end pointing downwards and with the MAM-window centered in the compression paddle biopsy window, as shown below.
RaySafe Solo User Manual – Tips and Tricks Display Meaning t
RaySafe Solo User Manual – Tips and Tricks I sometimes get readings which are far off expected when measuring with RaySafe Solo DENT on panoramic X-ray machines, why? Most likely the detector’s sensor area (2 x 22 mm) is not fully aligned with, or not completely centralized in the beam. Use the RaySafe OPG holder (see page 33 for instructions) which has a fluorescent screen cap, which will confirm the position of the beam in relation to the sensor.
RaySafe Solo User Manual – Tips and Tricks What happens if the mA/mAs cable is connected with the wrong polarity? The RaySafe Solo will not show any mA/mAs readings. As long as the mA/mAs cable is securely connected to both generator and base unit (in any polarity), there is no increased risk of damaging the generator or the instrument. Troubleshooting When turned on, the RaySafe Solo briefly shows “Battery down” and refuses to start. Please charge the battery, see chapter Getting Started.
RaySafe Solo User Manual – Tips and Tricks The RaySafe Solo detector end trigs during exposure. Make sure to select an appropriate Calc. delay if using the instrument with pulsed generators, or with generators having a pre-pulse before the main exposure. The RaySafe Solo does not respond when pressing keys. Try the reset switch and make sure that the battery is charged. I get strange readings when measuring HVL on mammography, in comparison with my manual HVL measurements.
RaySafe Solo User Manual – Warranty, Service and Support Warranty, Service and Support Unfors Raysafe warrants to the original product purchaser that each product it manufactures will be free from defects in material and workmanship under normal use and service. The warranty period is 12 months and begins on the date of delivery. Unfors RaySafe will at its option, repair or replace the defect product free of charge or refund your purchase price.
RaySafe Solo User Manual – Disposal Disposal The Directive on Waste Electrical and Electronic Equipment (WEEE) This symbol, found on the product or on its box, indicates that this product must not be disposed of or discarded with normal household waste. All electronic or electrical waste equipment must be sent to a recycling center designated for such hazardous waste. Proper disposal of your electronic and electrical waste equipment will help us to conserve our natural resources.
