What is Dosime?

Dosime is a personal radiation dosimeter that is both wearable as well as a home smart monitoring device.

What is a personal radiation dosimeter?

A personal radiation dosimeter is a device that measures exposure to ionizing radiation. It has two main uses: for human radiation protection and for measurement of dose in the environment, medical and industrial areas.

What is ionizing radiation?

Ionizing radiation has so much energy it can knock electrons out of atoms, a process known as ionization. Ionizing radiation can affect the atoms in living things, so it poses a health risk by damaging tissue and DNA in genes. Ionizing radiation comes from radioactive elements, cosmic particles from outer space and x-ray machines.

I received a Cradle. Does this measure radiation while the Dosime is in the home?

No, the Dosime device is measuring radiation whether in the home or wearable. The Cradle is used to charge the Dosime device.

What type of radiation does the Dosime device measure?

The Dosime device detects, measures and reports x-ray and gamma ionizing radiation.

Does the Dosime device measure radiation from a microwave oven, radar or ultraviolet?

No, the Dosime device only detects ionizing radiation.

What type of sensor is used in the Dosime product and could it be used for fluoroscopy procedures?

The Dosime device uses two Silicon diodes that are very sensitive for measuring ionizing radiation, x-ray and gamma photons. The Energy Response is flat from 30 keV to 6 MeV and a dose rate of 0.003 mrem/hr to 100 R/hr. The device is appropriate for any radiation measurements where the radiation is either x-ray or gamma, and is therefore ideal for fluoroscopic monitoring procedures.

How does the Dosime product compare to other dosimeter technologies that users wear and turn in at the end of each month?

The important distinction is when you ask “turn in at the end of each month”. A passive dosimeter is worn and then returned where the individual has no data on their dose received until the dosimeter is returned, received, processed and then reported, taking up to an additional two weeks in some cases. The Dosime device provides real-time dose rate as well as the cumulative dose. The Dosime device Type Test data demonstrates superior performance in energy respopnse, linearity, dose rate response and angular response.

How does the Dosime device report radiation exposure and dose?

The Dosime device reports radiation exposure in unit of millirem/hour (mrem/hour) and dose in unit of millirem (mrem).

What is the definition of a mrem?

The millirem is a unit of absorbed radiation dose and is often used for the dosages commonly encountered, such as the amount of radiation received from medical x-rays and background sources.

How will I know if I am in a radiation environment that may be potentially harmful?

The Dosime Now Screen displays dose rate (mrem/hour) and cumulative dose (mrem) in Low (Green), Elevated (Amber) and Severe (Red).

What is typical radiation background?

On average, a U.S. resident receives an annual radiation exposure from natural sources of about 310 millirem. Radon and thoron gases account for two-thirds of this exposure. Cosmic, terrestrial, and internal radiation account for the rest.

Besides background radiation, what other routine sources of radiation can I be exposed to?

Man-made sources of radiation from medical, commercial and industrial activities contribute roughly 310 mrem more to our annual exposure. Computed tomography (CT) scans, which account for about 150 mrem, are among the largest of these sources. A Chest CT scan results  in between 600–1800 mrem. About another 150 mrem each year comes from other medical procedures. Some consumer products such as tobacco, fertilizer, welding rods, exit signs, luminous watch dials and smoke detectors contribute about 10 mrem per year. The average annual U.S. radiation dose is 620 mrem.

Can the Dosime device be worn when I or a member of my family are undergoing a radiological or nuclear medicine procedure?

The Dosime device can be worn if allowed by the facility and does not interfere with the procedure being performed.

What unusual source of radiation can I be exposed to that the Dosime device will detect?

The Dosime device will potentially detect radiation from being near an individual that has undergone a nuclear medicine procedure, depending on the procedure and amount of radioactive material used in the procedure; a radioactive dirty bomb; a large release of radioactive gas from a nuclear facility as well as other sources.

I travel a lot. Will my Dosime device detect this radiation?

Yes, the Dosime device will detect radiation exposure during airline travel. A typical airline flight exposes the individual to approximately 0.5 mrem/hour. A New York-Tokyo flights for airline crew is typically 900 mrem/year.

What should I do if my Dosime device displays an Amber or Red Alert?

Click on the Alert and appropriate information is provided. "Move to an area where the dose rate decreases to the Green level (low levels of radiation).  If you are outside and you know the source of the radiation, move away from it or get inside a building and shelter in place.  If you do not know the source of radiation, or if you believe the source to be outside, stay inside (shelter in place)."

How will I know that the battery is low?

The Dosime battery remaining is displayed. Simply place the Dosime device in the Cradle and recharge the device.

How long does the Dosime battery last?

Generally the Dosime battery will retain a charge about 10 days, and the battery remaining can be visually checked.

What is the Minimum Reportable Dose and Maximum Reportable Dose (mrem) Dosime can detect?

The Dosime device will measure background exposure at approximately 0.002 mrem/hour and an approximate maximum dose of 1,000 rem.

What is a normal/acceptable rate of radiation exposure?

The Dosime device provides visual cues to simplify personal radiation monitoring:

Green: When the Dosime device blinks green, everything is OK.
Dose rate fluctuation between 0.005 mrem/hour and 0.030 mrem/hour is normal. Variation can be due to factors such as altitude, naturally occurring radioactive materials in surroundings. Higher readings that still show as Green can be due to procedures such as diagnostic radiology, high altitude flights and building materials.

Amber: When the Dosime device blinks amber, your risk of radiation has increased above a normal, naturally occurring rate.
"Annual public dose limit may be reached within 1 to 10 hours. Move to an area where the dose rate decreases to the Green level (low levels of radiation). If you are outside and you know the source of the radiation, move away from it or get inside a building and shelter in place. If you do not know the source of radiation, or if you believe the source to be outside, stay inside (shelter in place)."

Red: When the Dosime device blinks red, your chance of radiation has increased significantly.
"Annual public dose limit may be reached within 1 hour. Move to an area where the dose rate decreases to the Green level (low levels of radiation). If you are outside and you know the source of the radiation, move away from it or get inside a building and shelter in place. If you do not know the source of radiation, or if you believe the source to be outside, stay inside (shelter in place)."

What is the FCC and IC number of the WiFi component inside the cradle?

Wifi chip - FCC ID: VRA-SG9011203, IC: 7420A-SG9011203

Does the Dosime device require annual calibration like geiger counters that use GM tubes?

No. Our proprietary radiation technology is not as sensitive to aging deviations as other technologies and the response is expected to be stable for years.

How do I setup and use my Dosime device?

Download a copy of the Dosime manual by clicking here.

How do I contact someone if I need help using my Dosime device?

Visit our support page for contact details.

Where can I download a brochure about the Dosime device?

Download a copy of the brochure by clicking here.

Is the Dosime waterproof?

The dosimeter is "splash proof".

The dosimeter is IP65 which means:
Dust tight No ingress of dust; complete protection against contact (dust tight). A vacuum must be applied. Test duration of up to 8 hours based on air flow. Water jets Water projected by a nozzle (6.3 mm) against enclosure from any direction shall have no harmful effects.