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You are Here :: Home :: Registration & Training :: General Radiation Safety for Clinical Center Employees :: A. Sources of Radiation in the Clinical Center


A. Sources of Radiation in the Clinical Center

1. POSTED LABORATORIES: There are approximately 940 posted laboratories within the Clinical Center in which radioactive materials are handled. RADIOACTIVE MATERIALS are only used in rooms labeled

"CAUTION RADIOACTIVE MATERIAL"

Precautions to Follow Include: Do Not Touch Labeled Areas or Items

Do Not Eat, Drink or Smoke Inside Posted Rooms



2.


RADIATION PRODUCING MACHINES in patient care areas and Diagnostic Radiology Dept in the Clinical Center. Room is labeled with :
"CAUTION X-RAYS"

Permanent x-ray machines are labeled:
"CAUTION PRODUCES RADIATION WHEN ENERGIZED"

NO RADIATION IS PRESENT WHEN MACHINE IS "OFF". THERE IS NO POTENTIAL FOR CONTAMINATION



3.


CYCLOTRON: Sub-basement of Building 10.

Manufactures radioactive materials for injection into patients in the Positron Emission Tomography (PET) Dept. Card Key access only.



4.


RADIATION ONCOLOGY DEPARTMENT : B3 Level of Clinical Center

Performs radiation therapy for cancer patients, primarily with accelerators in specially shielded rooms.



5.


DEPARTMENT OF NUCLEAR MEDICINE: 1st Floor Clinical Center

Performs diagnostic scans of patients using injections of radioactive materials.



6.


8 WEST PATIENT CARE UNIT: Radioactive Material Patient Therapies

Patients undergoing certain cancer treatment are placed in private rooms on this unit because the patients have large amounts of radioactive material circulating in their bodies. The patients remain in the private rooms until the excess radioactive material has cleared the body. These rooms are very well labeled and patient care personnel receive specialized radiation safety training prior to assisting these patients.



7.


NIH IRRADIATORS:

Irradiators are large, self-shielded devices housing radioactive material in the form of a sealed source. These devices are located throughout the Clinical Center. Irradiators at NIH are intended for use in the irradiation of biological specimens, animals, and other materials in biomedical research. Irradiators are designed to be self-shielded and in normal operation they present a minimal radiation hazard to users or other individuals in areas adjacent to the irradiator itself.

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Gammacell 1000 Irradiator


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