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RaySafe Solo User Manual

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USER MANUAL
RaySafe Solo

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  • Page 1 USER MANUAL RaySafe Solo...
  • Page 2 © 2018.10 Unfors RaySafe 5001053-4.00 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.

  • Page 3: Table Of Contents

    INTRODUCTION ....................5 Versions ......................5 About this user manual ................... 5 THE RAYSAFE SOLO ....................6 The RaySafe Solo detector options ..............6 Easy to use .......................7 GETTING STARTED ....................8 Keys on the RaySafe Solo base unit..............8 Battery and Charger ..................9 R/F MEASUREMENT .....................
  • Page 4 RaySafe Solo User Manual – Contents Setup of Bluetooth communication .............. 33 Getting help ....................34 ACCESSORIES ..................... 35 The RaySafe flexi stand ................35 The RaySafe OPG holder ................35 The RaySafe Cassette holder ............... 36 TIPS AND TRICKS ....................37 Arrangement of Measurement ..............37...

  • Page 5: Introduction

    RaySafe Solo User Manual – Introduction INTRODUCTION VERSIONS This user manual covers the following articles: base unit version: 8221011 detector version: 8222015 8221022 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.

  • Page 6: The Raysafe Solo

    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. The RaySafe Solo R/F base unit can be equipped with mA/mAs capabilities.

  • Page 7: Easy To Use

    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.

  • Page 8: Getting Started

    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.

  • Page 9: Battery And Charger

    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.

  • Page 10: R/F Measurement

    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.
  • Page 11 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 (for the R/F high, RAD or DENT high sensor at adequate signal levels) or kV (R/F low or DENT low).
  • Page 12 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.

  • Page 13: Mammography Measurement

    RaySafe Solo User Manual – Mammography Measurement MAMMOGRAPHY MEASUREMENT 6 cm 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.
  • Page 14 (Factory settings in bold.) Trig delay A delay in ms after the normal trig of the RaySafe Xi. 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. (0, 5, 10, 50, 100, 200, 500, 1000,...
  • Page 15 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.

  • Page 16: 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.
  • Page 17 Dose Length Product Gycm or Rcm NOTE! The RaySafe Solo CT detector can be used in two dose modes (dose or dose length product (DLP)), selectable in the SETUP MENU. Since the RaySafe Solo CT chamber is 10.0 cm long, DLP readings (in Gy•cm or R•cm) will always be exactly 10 times higher than dose readings.
  • Page 18 RaySafe Solo base unit and the calibration date for the sensor. There is also a possibility to reset the instrument settings to factory defaults. Temperature and pressure values are shown only in the RaySafe Xi View, not on the RaySafe Solo base unit display.

  • Page 19: Light Measurement

    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.
  • Page 20 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.
  • Page 21 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.

  • Page 22: Ma/Mas Measurement

    2. Remove the jumper of the mA/mAs port in the generator. 3. Connect the black and red banana plugs of the RaySafe mAs cable to the mA/mAs port of the generator. (Note! The mA/mAs instrument is dependent on the polarity. Using the wrong polarity will result in no trig.) 4.
  • Page 23 (Factory settings in bold.) Trig delay A delay in ms after the normal trig of the RaySafe Solo. 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. (0, 5, 10, 50, 100, 200, 500, 1000, 2000 ms) Calc.
  • Page 24 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. Connection of a PC (mains supplied) via a serial cable to the RaySafe Solo base unit may create ground currents affecting the measurement.

  • Page 25: Passive Mas

    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.

  • Page 26: Measurement Definitions

    In certain situations advanced users can change the measuring definitions of the RaySafe Solo by activating Trig delay and/or Trig level settings. Because the measured parameters will be affected by the settings of delays and trig levels, it is recommended to note the setup information shown on the base unit display at power on.
  • Page 27 RaySafe Solo detector will be reading True Input Dose while the ion chamber is reading the input dose plus back scatter from the object directly behind it. If using the RaySafe Solo detector and an ion chamber in free air they should be comparable ± both meter tolerances.

  • Page 28: Dose Rate

    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. If no kVp value is displayed, try decreasing the FDD or increasing mA.

  • Page 29: Time

    TIME The RaySafe Solo measures time from the start trig (may be adjusted with the Trig level setting) until the signal falls below 25 % of the peak (50 or 75 % if adjusted with the Trig level setting). At low dose rates (about 1 % of the max dose rate for the active sensor), the 25 % end level is changed to a low level (about the lowest measurable dose rate for the active sensor).

  • Page 30: Pulse

    PULSE The RaySafe Solo counts pulses from 1 to 9999. The trigger to increment the pulse counter occurs when the dose rate has a negative slope and the amplitude falls below 25 % of the peak amplitude for the exposure. At peak dose rates of approximately <...

  • Page 31: Total Filtration - Optional

    AND mAs The RaySafe Solo is capable of measuring mA, mAs and time. If the peak mA is > 8 mA, it can also measure pulses, frame rate and mAs per pulse.

  • Page 32: Raysafe Solo Pc Kit

    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.

  • Page 33: Transfer Data To A Computer

    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.

  • Page 34: Getting Help

    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.

  • Page 35: 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.

  • Page 36: The Raysafe Cassette 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. The holder is 24 x 30 cm (10 x 12 in) and makes it possible to measure on all three AEC chambers at once, without repositioning the detector.

  • Page 37: Tips And Tricks

    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. This position is used as a calibration reference point for dose.

  • Page 38: 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.

  • Page 39: Frequently Asked Questions

    Battery down The battery must be charged before any measurements can be made. Detector is incompatible The connected detector is not compatible with the RaySafe Solo base unit version. FREQUENTLY ASKED QUESTIONS What is the difference between R/F high and R/F low, and how do I use them? R/F low is optimized for low signal levels, typically found during fluoroscopy, behind a phantom.
  • Page 40 Most ionization chambers measure primary as well as scattered radiation, which is why they should be placed free in air (at least 0.5 m (2 ft) from any scattering material). When used in such fashion, the RaySafe Solo will show similar readings when compared to an ion chamber.

  • Page 41: Troubleshooting

    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.
  • Page 42 Please make sure that the thickness of your Al filters is accurately known. A resolution on the order of 1 µm is needed for 0.1 mm thickness. I get strange mA/mAs readings when I’m using the RaySafe Solo’s AC adaptor or when my computer is connected to mains power.

  • Page 43: Warranty, Service And Support

    A participant of the RaySafe Service Program is obligated to return the instrument annually, with a 12 month cycle (± 1 month) based on the original delivery date. Failure to do so will void any part of the RaySafe Service Program.

  • Page 44: Disposal

    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.

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