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Optically Stimulated Luminescence (OSL) Dosimetry Service

OSL Dosimeter

Ensure compliant radiation exposure levels with OSL dosimetry services

Professionals and staff working in environments exposed to radiation rely on employers and trained inspectors to ensure the highest levels of occupational safety and compliance to regulatory standards. Medical and industrial personnel must be individually monitored to measure personal exposure amounts and control healthy exposure limits.

Our experts use OSL technology to regularly measure radiation exposure to monitor the health and safety of personnel, patients and others according to the highest standards. We provide state-of-the-art OSL dosimetry services in facilities accredited by the Philippine Accreditation Office (PAO) as an ISO 17025:2009 testing laboratory. We are further authorized by the Department of Health-Food and Drug Administration (DOH-FDA) as a designated provider of radiation protection services .

Our expertise and recognized credentials help you demonstrate your commitment to ensuring compliant health and safety principles to protect those in environments exposed to radiation factors.

Monitor your health and safety protection with reliable radiation exposure measurement!

Fast and reliable protection with OSL technology

We provide comprehensive dosimetry services using Optically Stimulated Luminescence (OSL) technology to assure your dose reports are on time and accurate. Our accredited laboratories are equipped with calibration technology traceable to the National Institute of Standards and Technology (NIST), an affiliated member of the IAEA/WHO Primary Standard Dosimetry Laboratory (PDSL) network. Results are made available within 14 working days. Dose assessments are saved to multiple devices to ensure you easy, round-the-clock access.

Our OSL dosimetry services

We conduct state-of-the-art dosimetry services using the most OSL technology to measure radiation exposure. Our laboratory utilizes the Microstar© OSL Dosimeter Reader which stimulates aluminum (Al203:C) crystal detectors with green light from an emitting diode source. After stimulation, the Al203:C material emits blue light proportional to the amount of radiation exposure.

Our OSL dosimetry services comply with the American National Standards Institute (ANSI) 13.11 Personnel Dosimetry Performance-Criteria for Testing requirement. We provide personnel exposure monitoring for hospital, industrial and research staff as well as dose verification for patients receiving radiotherapy and diagnostic radiology.

Our dosimetry laboratory is now accredited according to PNS ISO/IEC 17025:2005 by the Philippine Accreditation Bureau (PAB) and authorized by the DOH-FDA Center for Device Regulation, Radiation Health and Research (CDRRHR) as a Radiation Protection Service Provider (Bureau Order No. 2011-123 of December 2011).

We conduct services according to the following legal requirements:

  • Checklist for Renewal/Issuance of a License to Operate (LTO)
    Non-Medical X-Ray Facility
  • ANSI/HPS 13.11 Standard for Personnel Dosimetry Performance
  • IAEA Safety Standards for Occupational Radiation Monitoring

We are able to quickly measure personnel/patient badges, requiring only 20 seconds per badge, to provide you fast and reliable results within 15 working days.

Your accredited and trusted provider of critical OSL Dosimetry measurement

We are your accredited laboratory and authorized provider of radiation protection services. We provide services for hospitals, medical facilities, academic institutions and clinics as well as industrial, mining and manufacturing companies of all sizes. Our experts use OSL technology to regularly measure radiation exposure to ensure the health and safety of personnel and patients according to the highest standards. We have the expertise and the credentials you need to maintain both compliant and effective radiation exposure protection.

Measure and monitor radiation exposure quickly and precisely for optimal safety and protection!

FAQ: Frequently asked questions about OSL

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What is OSL?

Optically Stimulated Luminescence or OSL is the most advanced technology developed by Landauer, Inc. for measuring radiation exposure. Compared to thermoluminescence dosimeters (TLD), which are heated to determine the radiation exposure, OSL dosimeters are exposed to a light source to obtain the amount of radiation absorbed by the dosimeter. OSL dosimetry utilizes the detector material carbon doped aluminum oxide (Al2O3:C) crystals produced by Landauer.

What is the OSL dosimeter called?

TÜV Rheinland Philippines offers InLight whole body dosimeters for radiation workers. This dosimeter can be placed in the neck area, abdomen area, and at the extremities. The OSL dosimeter responds to photon and beta radiations and is not sensitive to neutron radiation.

What are the different parts of the OSL InLight dosimeter?

The OSL InLight dosimeter consists of the (Al2O3:C) detector slide, which is inserted in a plastic case that contains the different filters of the dosimeter. It comes with badge holder that protects the dosimeter from different environmental conditions and a clip to position the dosimeter in the body. Each dosimeter has a unique barcode number, which is used to identify the dosimeter’s user, designation, facility, and monitoring period.

How are OSL dosimeters measured?

OSL dosimeters are retrieved after one to two months. After receiving the dosimeters, they will be inspected for any tampering or damage. Then, the dosimeters will be stored in a shielded container until its scheduled date of measurement. After storage, the dosimeters will be measured using an industrial-grade auto-reader. The reader stimulates the (Al2O3:C) material with green light from a light emitting diode source. After stimulation, the Al2O3 emits blue light, which is proportional to the radiation exposure absorbed by the material. The blue light is absorbed by the photo multiplier, which converts the photons to an electrical signal. After measuring the dosimeters, they are annealed or “bleached” to erase the absorbed dose from the previous monitoring period.

What are the advantages of OSL dosimeters over TLD and film badge?

Since OSL is the most advanced technology in radiation monitoring, it offers several advantages such as fast dose assessment, dosimeter archiving, non-destructive readouts, high degree of environmental stability and much more.

When and how are the dose reports issued?

After receiving the OSL dosimeters from your facility, your dose reports will be available in less than 15 working days. The reports can be delivered through e-mail and mail.


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