Harpell Associates - Radiation Oncology, Medical Physics, Diagnostic Imaging, Nuclear Medicine, PET, Radiology, Ultrasound, Radiation Safety

Radiation Protection in Fluoroscopy:

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Interventional radiology procedures are considered to be essential to medical diagnosis and treatment. It is recognized, however, that exposure to radiation is also potentially harmful to the staff that is required to perform these procedures.

The Unfors EDD-30 is the first device that will alert one who is unnecessarily exposed within one second of exposure.

Immediate Warnings (within one second)
Easy to wear
Small sensor
Spherical response

Dose rate warnings

Learn to avoid being unnecessarily exposed to radiation. See how you can use the Unfors EDD-30 to increase your awareness and decrease your dose.

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Easy to wear

The lightweight design of the Unfors EDD-30 allows you to place the display in the apron pocket or strapped about the waist with the customized case and belt provided with the meter. Being light-weight and small, the Unfors EDD-30 will not obstruct the procedure.

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EDD-30 Quickguide

Your Unfors EDD-30 is supplied with a customized holder including a Quick Guide ensuring maximum accessibility.

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Educational Direct Dosemeter

Are you being unnecessarily exposed to radiation? Interventional radiology procedures are considered to be essential to medical diagnosis and treatment. It is recognized, however, that exposure to radiation is also potentially harmful to the staff that is required to perform these procedures.

Although steps may be taken to minimize exposure to secondary radiation through the use of protective garments and other forms of shielding, it is impossible to provide total protection to all parts of the body. Radiation dose can be monitored through the use of film badges and TLDs, but these devices can only provide retrospective information. In contrast, to learn how to avoid being unnecessarily exposed to radiation, there is a need for immediate warnings. With a simple tool like Unfors EDD, anyone being exposed to unnecessary radiation can learn to avoid it.

The Unfors EDD consists of a small sensor on a cable connected to a display unit. The sensor can measure the dose and dose rate to a specific part of the body, i.e. to eyes, hands, feet, etc. Total exposure time is also measured. When the sensor and display unit have been positioned and the instrument turned on, dose is accumulated and alarms are triggered when selected dose or dose rate limits are exceeded.

Direct response - Immediate warnings

Placement of the small sensor anywhere on the body will give you immediate (within one second) audible warnings when you are being unnecessarily exposed to fluoroscopic X-ray. The Unfors EDD gives you the unique opportunity to decrease your dose by increasing your awareness.

The Unfors EDD can be worn in a customized case attached to a belt, or simply placed in the pocket of a lead apron. Being lightweight and small, the meter will not obstruct the procedure. The unique EDD sensor has a spherical response which will accurately measure dose on any position on the body independent of the incident angle of the radiation. Because the sensor is mounted on a customized cable, radiation can be measured on extremities.

Dose rate range: 1 mSv/h = 66 mR/h = 278 nGy/s	0,03 mSv/h – 2 Sv/h 10 nGy/s – 0,6 mGy/s 2 mR/h – 130 R/h
Dose range: 1 Sv = 66 R	1 nSv – 9999 Sv 1 nGy - 9999 Gy 0,1 µR – 9999 R
Trigger level:	0,05 mSv/h [15 nGy/s]
Disinfections:	Sensor, cable and instrument housing can be wiped off with 70 % medical alcohol
Power source: Battery life time: Auto Power off:	Two LR06 (size AA) alkaline type 130 hours After two hours without radiation or key activities
Display:	4 digit LCD
Size of instrument housing:	82 x 98 x 21 mm
Total weight incl. batteries:	200 gr
Accessories included:	Hard carrying case. Waist case with belt and a bracelet. EDD Quick Guide, placed in the waist case pocket. Practical clip on the sensor cable for easy positioning of the sensor.
Sensor Specifications Sensor size: Sensor cable length:	6 x 8 x 25 mm 1,5 m



Manufacturers	Radiation Oncology	Medical Physics	Diagnostic Imaging	Radiation Safety	Exercise Systems

Discounted Nuclear Medicine Equipment