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bannerPersonnel working with radioactive material and radiation generators such as X-ray equipment could be potentially exposed to and receive radiation doses due to the nature of their occupation. Considering that exposure to ionizing radiation could be a health hazard, it is necessary that radiation levels in these facilities are measured, monitored, and controlled to within safe limits.

The Radiation Protection Services Section (RPSS) of PNRI provides services to users of ionizing radiation to monitor, assess, and control radiation levels and exposures in order to help ensure the safety of the workers and members of the public.
Personnel Monitoring Services

sampleThe personnel monitoring program is a support to the national regulatory requirement that exposure  of workers  involved in the use of ionizing radiation should be monitored and controlled.

RPSS provides whole body and extremity personnel monitoring services to workers occupationally exposed to radiation. This is to help ensure that the doses received by workers are monitored to within safety limits. The passive dosimeters used for these services are: 
  • Thermoluminescence Dosimeters (TLD)
  • Optically Stimulated Luminescence Dosimeters (OSL Dosimeters)

Calibration Services

calibration

 

The PNRI establishes the national standards for ionizing radiation through the Secondary Standards  Dosimetry Laboratory (SSDL). The SSDL is operated to ensure that:

(a) national standards for ionizing radiation in the country are developed and maintained, and

(b) radiation instruments are calibrated to give correct and accurate indications of the levels of ionizing radiation.

The radiation monitoring instruments calibrated are:

  • survey meters/dose rate meters
  • contamination meters
  • personal dosimeters
  • rate alarm monitors

Output Calibration of Nuclear Equipment

The PNRI establishes the national standards for ionizing radiation through the Secondary Standards Dosimetry Laboratory (SSDL). The SSDL is operated to ensure that:

(a) national standards for ionizing radiation in the country are developed and maintained, and

(b) radiation instruments are calibrated to give correct and accurate indications of the levels of ionizing radiation.

Output calibration of nuclear equipment in medicine such as: 

  • activity meters
  • brachytherapy sources and well-type ionization chambers
  • teletherapy machines

Radiation Waste Management Services

rwm

The applications of radioactive sources in the medical, industrial, and research facilities result to the generation of radioactive wastes which can be a hazard to human health and the environment if not managed properly.

RPSS operates and maintains the centralized storage facility for low and intermediate level radioactive waste including:

  • disused sealed radioactive sources (DSRS)
  • organic and aqueous liquid wastes
  • solid waste contaminated with radioactive substances
The Radioactive Waste Management Facility (RWMF) treats, conditions, and stores radioactive wastes. The processes involve collection, treatment, and conditioning of radioactive sources for interim storage until a final repository site is implemented in the country.
Leak Testing/ Swipe Sample Analysis

analysis

RPSS also provides technical support to authorized users of ionizing radiation to ensure that their facility complies with radiation safety standards.

Leak testing of sealed sources and swipe sample analysis services are provided to determine the presence of residual activity in nuclear devices. These aim to confirm the integrity of sealed sources and reduce risk of contamination or internal exposure of personnel.

Radiation Monitoring and Hazard Evaluation

RPSS also provides technical support to authorized users of ionizing radiation to ensure that their facility complies with radiation safety standards.

  • Radiation monitoring & hazards evaluation services are provided to measure the ambient  radiation and contamination levels of certain facilities and items to evaluate whether there are significant radiation hazards
  • Rental of survey meters for workplace monitoring
PhilDose (Visit Site)

phildose

The Philippine Dose Registry (PhilDose) is a web-based information system that contains radiation dose records of occupationally-exposed workers in the Philippines. The registry can store doses received from Gamma, Beta and Neutron radiation. The PhilDose, is the first Dose Registry for occupational radiation exposure in the Philippines. It is currently maintained and updated by the RPSS of PNRI.

The purpose of the Philippine Dose Registry is to assess exposure of workers to external sources of radiation. Currently, OSLDs (Optically Stimulated Luminescence Dosimeters) and TLD (Thermoluminescent Dosimeters) are used as personnel monitoring devices in the country. Personal doses are reported in terms of personal dose equivalent: Hp(10) for the whole body dose, and Hp(0.07) for skin dose. They are presented in units of milli-Sievert (mSv) which is characterized by the amount of biological damage a radiation does to the tissue. The current dose limits as per national regulations are as follows:

(a) An effective dose of 20 mSv per year averaged over five consecutive years;
(b) An effective dose of 50 mSv in any single year;
(c) An equivalent dose to the lens of the eye of 150 mSv in a year; and
(d) An equivalent dose to the extremities (hands and feet) or the skin of 500 mSv in a year.

As numbers of monitored personnel is increasing over the years, having the PhilDose will allow better monitoring and assessment of occupational exposure profiles in the Philippines. The Registry is a means to track exposure history of workers in the country to monitor and assess their exposure profiles. It will result to an improved evaluation of risks associated with exposure to ionizing radiation. The implementation of the registry is vital in establishing more opportunities that will help strengthen the radiation protection infrastructure of the country.
  • For  information on fees and charges for , click  PNRI Fees and Charges
  • To download application forms for radiation protection services,  click Download Forms.
  • For more information, please contact:

Radiation Protection Services Section

Nuclear Services Division

Trunkline:  (+632) 929-6011 to 19 local 246 or 262

Direct Line: (+632) 920-8757

Cellphone:  09336079294 or 09270660751

Email: This email address is being protected from spambots. You need JavaScript enabled to view it.
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