U.S. Military-grade personal dosimeter that instantly detects radiation exposure in the event of a dirty bomb, nuclear reactor accident and other sources of radiation. This always-on wallet card/badge radiation detector does not require batteries or calibration. The sensor strip instantly turns darker when it detects harmful levels of radiation. The darker the sensor strip, the higher the radiation dose.
Instant radiation detection
No batteries needed
No calibration needed
Field tested by Dept of Homeland Security
U.S. Military grade
Impervious to EMP Bomb
Discreet and affordable
Fits wallet or badge holder
Made in the U.S.A.
Extend shelf-life up to
5 years by storing in freezer until ready to use
Credit card size
3 3/8" x 2 1/8"
Quote from DHS Report - "If routinely carried by emergency responders, it could provide early indication of a significant radiation component after a terrorist event and measure individual responder dose for planning lifesaving operations. It could also reassure first responders of a lack of radiation, which could avoid response delays due to fear of radiation. Pre-distributed SIRADs [RADTriage] could provide early data on the ground to assess the scope of a radiation event. This data could assist identifying those in the public that potentially received a significant radiation dose."
Quote from DHS Report - RADTriage was found to demonstrate ?acceptable performance for homeland security mission needs. If routinely carried by emergency responders, it could provide early indication of a significant radiation component after a terrorist event?.
Quote from DHS Report - "The SIRAD [RADTriage] demonstrated generally acceptable performance for homeland security mission needs. Incidence of loss or damage to the device during field deployment was low, false positive rates were less than one percent, and field conditions and physical stresses did not seem to compromise performance."
Military-grade RADTriage Radiation Detector impervious to an EMP bomb
The Department of Homeland Security-tested RADTriage will continue to instantly detect radiation after an Electromagnetic Pulse (EMP) bomb detonation because it has no electronics.
Beta and Gamma Radiation: "...cesium-137 is of particular concern because it is a potential component of a conventional explosive device (a ?dirty bomb?) containing radioactive material." - FDA "Dirty Bomb" treatment document
Beta Radiation: "...the Bush administration's consensus view was that Osama bin Laden's al Qaeda terrorist network probably had such often-stolen radioactive contaminants as strontium 90 [Beta radiation] and cesium 137 [Gamma radiation], which could be used to make a dirty bomb." - Terrorism Q&A, Council on Foreign Relations
Gamma Radiation: "Thallium-201 has also been mentioned as a potential component of a dirty bomb." - FDA Dept of Health and Human Services (PDF file)
"A variety of radioactive materials are commonly available and could be used in an RDD [Radiological Dispersal Device, a.k.a. Dirty Bomb], including Cesium-137, Strontium-90, and Cobalt-60." - CIA report: Terrorist CBRN: Materials and Effects
Objective of the RADTriage
The RADTriage, a stockpileable personal radiation detector, provides wearers, medical personnel and law enforcement personnel timely personal radiation exposure information in an event of a terrorist radiological incident or industrial accident. RADTriage, with the amber laminated filter, provides significantly longer life in direct sunlight. The RADTriage, part of the SIRAD (Self-Indicating Radiation Alert Dosimeter) family of SMART dosimeters, is uniquely designed to prevent erroneous readings. It has a sensor (a rectangular strip between the color bars) with 0, 20, 50, 100 & 250 mSv bars on its top and 500, 1000, 2000, 4000 & 10,000 mSv bars on its bottom for triaging information in emergencies. If, during or after the incident, the color of sensor has not changed, the wearer has not received radiation exposure large enough to cause acute medical effects and therefore has peace of mind. If the sensor changes color, radiation exposure is indicated. In this case, further exposure should be avoided. If the Sensor has developed a darker color, e.g., above 250 mSv, the user should seek a medical evaluation. A person exposed to a dose higher than 500 mSv should immediately contact the emergency room of the nearest hospital.
Introduction back to top
The RADTriage (USP# 7,227,158 and others) is always active and ready to use. It is a smart dosimeter and has the capability of monitoring shelf life, false positives/negatives and tampering. When exposed to radiation, e.g., from a "dirty bomb", the sensor of the RADTriage changes color instantly.
Types of Radiation
The RADTriage sensor responds to gamma/X-ray (energy higher than 30 KeV) and high energy (e.g., above 1 MeV) electrons/beta particles. Color development of the Sensor is essentially independent of dose rate. However, protective films attenuate low energy (below 200 KeV) X-ray. RADTriage will not be affected by normal exposures to diagnostic X-rays (e.g., chest or dental) or security/airport X-ray/CAT scan machines, except that multiple exposures (more than five) to such will result in sufficient enough exposure to produce a detectable color change in the sensor.
How to Read Dose with RADTriage
Estimate the exposure dose by comparing the color of the sensor with the Sensor Reference Bars. Find a bar which closely matches the color of the sensor and read the dose in mSv printed adjacent to those bars. If the Sensor develops a color in-between any two adjacent bars, this indicates an in-between dose. For a nearly tissue equivalent dosimeter, such as RADTriage, 1 rad = 1 rem = 10 mSv. It can be viewed in any light. However, we recommend reading the dose under fluorescent lights for better accuracy. Color matching under other lights may not be as accurate. Dose can be estimated with an uncertainty of about 20% with a color-matching reference chart. Where additional accuracy is needed, a spectrophotometer or an optical densitometer can be used to determine the dose to within 10%.
Effects of Heat and UV Light
The sensor of the RADTriage will develop colors faster if exposed to UV/sunlight for a prolonged period. Keep the RADTriage at or below normal room temperature. Repeated, e.g., hundreds, of readings where the sensor gets exposed for less than a minute per reading (even under direct sunlight) will cause little or no color development in the sensor.
False Positive and Tamper Indicators
If used as per instructions, it is unlikely that the RADTriage will provide false positives or false negatives. Your RADTriage is a SMART personal dosimeter, equipped with a simple-to-use revolutionary indicator for monitoring the deliberate or inadvertent exposure to high temperatures or ultraviolet light. We call it the FIT Indicator (False-positive, Inactivation and Tamper) and it is located on the right hand end of the sensor. The FIT Indicator simultaneously monitors false positives & negatives, overexposure to heat & UV/ sunlight, shelf-life, inactivation and/or altered sensitivity.
Inactivation & False Negative Indicator: If the dots of the FIT Indicator is dark blue, the sensor is active, it is monitoring radiation and the calibration is valid. However, if it has changed to red, your RADTriage has been heated near or above 175oF/80oC which has made the sensor inactive to radiation or of altered sensitivity to radiation. DO NOT USE the dosimeter if the dots of the FIT Indicator are red. Turn the dosimeter in to the issuing organization with a description of the circumstances. The heat treatment can be used by medical authorities to fix the sensor for permanently documenting the radiation exposure as a part of a medical record. Medical personnel requiring this capability should contact the distributor, Nukepills.com.
False Positive Indicator: The shelf life (expiration date) of the dosimeter is based on storage of the RADTriage at room temperature (77oF/25oC) or below and continuous protection from ultraviolet/sunlight exposures. Shelf life will be reduced if it is stored at higher temperatures and/or exposed to UV/sunlight for a prolonged period (e.g., more than a few hours of direct sunlight). The area surrounding the dots should be lighter in color when issued/purchased. If it has developed a color matching or darker than the Color Reference Bar on its right, the shelf-life of the RADTriage has expired; it was overexposed to UV light, and/or exposed to higher temperatures for a prolonged period. The sensitivity of the FIT Indicator to X-rays is hundreds of times lower than that of the sensor.
The sensor of the RADTriage will develop color equivalent to about 10 mSv in about one year if stored at 77oF/25oC. The shelf-life/guaranty of the RADTriage expires one year from the issue date and definitely when the color of the area surrounding the dots of the FIT Indicator matches or is darker than the Color Reference Bar on the right hand side. However, the shelf-life of the RADTriage can be extended five years if kept in a freezer until ready to use.
A small portion of the sensor is covered with the FIT Indicator. The substrate of the FIT Indicator is 100% opaque to visible and UV light but transparent to X-rays and gamma-rays. If the color development of the sensor is due to exposure to high energy ionizing radiation, the whole sensor will be uniformly colored. If the color development of the sensor is due to exposure to UV light, the color of the sensor under the FIT Indicator will be significantly lighter.
If the sensor of the RADTriage develops darker color and the color development is not due to prolonged exposure to high temperatures, UV/sunlight, and/or expiration of shelf life, estimate the dose and immediately report it to the department/agency/organization issuing the dosimeter. Seek advice and medical help immediately from your agency/company medical office, your personal health care provider or county public health office, especially if the dose is higher than 250 mSv. For a dose higher than 500 mSv, report to the nearest Emergency Room.