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RaySafe i3 personal dosimetry radiation monitoring system

The personal dosimeter system with real-time x-ray radiation monitoring

Learn how the RaySafe i2 system detects scatter radiation at Henry Ford Health System in Michigan »

RaySafe i3 personal dosimetry radiation monitoring system
RaySafe i3 dosimeter badge radiation monitoring system
RaySafe i3 dosimeter badge radiation monitoring system
RaySafe i3 dosimeter badge radiation monitoring system

RaySafe i3

Real-time Personal Radiation Dosimetry

Manage your radiation exposure instantly

Learn how the new RaySafe i3 system gives you immediate X-ray exposure information.

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Download the RaySafe i3 vs i2 Comparison Sheet »

Applications for i3

RaySafe i3, building a better radiation safety culture

The Raysafe i3 system is the latest generation of the real-time dosimetry family. The system includes a set of the new RaySafe real-time personal radiation dosimeters coupled with a display and software to provide with a complete, immediate visual of radiation exposures.

Visualize X-ray exposure with the new i3 real-time personal radiation dosimeter using easy-to-read bar graphs. Instant feedback empowers your medical staff to learn and adapt their behavior on the go, minimizing unnecessary radiation exposure.

Measurements are simultaneously stored for post-procedure analysis, facilitating continued learning and to enable comparisons over time, between labs and between users.

Overview i3

Features and benefits

RaySafe i3 offers the following important benefits

Replaceable battery prolonged life cycle

The new Real-time Dosimeter has a replaceable battery, which means that longevity depends solely on wear and tear.

Better immunity to interference

RaySafe i2 dosimeters are sensitive to certain cell phone signals. The new Real-time Dosimeter is greatly improved in this regard no interference has been observed during heavy testing.

Automatic sleep mode

Only active dosimeters will populate the screen, regardless of where the inactive units are stored.

Enhanced measurement performance

Wider angular response means that radiation coming from below and from the sides is measured in a predictable fashion. Lowered dose rate threshold results in improved response when used with the latest low dose X-ray machines.

    Sensor Response

Detailed comparison

RaySafe i3 Dosimeter RaySafe i2 Dosimeter
Radio communication Frequency depending on region
Compatible with existing real-time dosimetry products
Energy saving features Longer transmission intervals
when not irradiated,
automatic sleep mode
Longer transmission intervals when not irradiated
PC connectivity Micro USB connector USB docking cradle
Battery User replaceable, non rechargeable Non replaceable, non rechargeable
Pocket clip Plastic clip, user replaceable Metal clip, non replaceable
Visual feedback LED error and wake up indication LED error indication
Energy range N40 - N150 N40 - N120
Dose rate uncertainty ±10% or 10 µSv/h (40 µSv/h 150 mSv/h)
±20% (150 mSv/h 300 mSv/h)
±40% (300 mSv/h 500 mSv/h)
±10% (40 µSv/h 150 mSv/h)
±20% (150 mSv/h – 300 mSv/h)
Angular dependency < 5% (0° 10°)
< 30% (10° 60°)
+30% to -100% (60° 90°)
< 5% (0° 5°)
< 30% (5° 50°)
+200% to -100% (50° 90°)
Expected longevity Up to 10 years 3-5 years, until the battery runs out

RaySafe i3 real-time personal dosimeter

i3 real-time personal radiation dosimeter

The i3 personal device measures and records radiation every second, and wirelessly sends it to the real-time display monitor. It is easy to wear, requires minimal maintenance and is personalized so each user is individually tracked.

It includes:

  • User nameable device appears as such on the display
  • Color coded devices help differentiate users
  • Replaceable plastic pocket clip
  • LED error and wake-up indicator

Real-time display

i3 real-time personal radiation dosimeter display

At a glance, you can see dose data for connected personal dosimeters in real-time, allowing you to make immediate behavior changes to reduce radiation exposure immediately. Colored bars indicate on-going dose rate for each individual user as well as total exposure for your session.

It is as easy as tapping your name on the display to get detailed information about your personal dose history.


i3 real-time personal radiation dosimeter software readings

Use Dose Viewer software to administer dosimeters and view personal radiation dose information. Dose Manager lets you do advanced analysis, reporting and archiving of dose information. This powerful software manages multiple dosimeters and can retrieve dose information from multiple real-time displays throughout the hospital network or via USB storage.



34 g (1.20 ounces)


40 x 58 x 17 mm
(1.6 x 2.3 x 0.7 inch)

Operational quantity


Energy Dependence

<25% (N-series, 40 - 150kV)

Temperature Dependence

<5%(18 °C – 26 °C)
<25% (15 °C – 18 °C, 26 °C – 35 °C)

Response Time

<1 s, above 100 μSv/h
<5 s, below 100 μSv/h

Integration Interval

1 s

Detection Limit


Dose Rate Uncertainty
(continuous radiation)

10% or 10μSv/h (40 μSv/h – 150 mSv/h)
20% (150 mSv/h – 300 mSv/h)
40% (300 mSv/h – 500 mSv/h)
The measured dose rate is monotonically
increasing up to 1 Sv/h.

Dose Reproducibility

10% or 1 μSv

Maximum Lifetime Dose

10 Sv


CR2450 (replaceable, 1 – 2 years lifetime depending on usage)


Radio communication to real-time display, carrier frequency depending on region. USB port for connection to PC

Real-time display

Dose unit

Sv or rem


300 x 250 x 60 mm
(11.8 x 9.8 x 2.4 inch)


1240 g (43.74 oz)


10.4" touch screen


Dose rate by second and accumulated dose by hour for connected dosimeters. For 50 dosimeters the memory size allows storage of up to 5 years of accumulated dose and dose rate for the last 250 hours of exposure each.


Ethernet connection for Dose Manager USB connection for synchronizing data to USB memory stick


12 V DC, <1.5 A External power supply included

Software Requirements

Operating System

Windows XP, Vista, 7, 8 or 10

System Memory

At least 1 GB (Dose Viewer)
At least 2 GB (Dose Manager)

USB Connection

1 × USB 2.0

Hard Drive

At least 15 GB available space (Dose Manager)

Instrument specifications are subject to purchased configuration. All specifications may change without notice.
Product is not available in every country. Check with your local representative for further information.

Model NameDescription
RaySafe i3RaySafe i3
Personal dosimeter staff monitoring system

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