Biomaterial Database

Verification timer for radiation therapy machines. 1977

P A Parrino

Many cobalt and x-ray therapy machines use mechanical timers to control the given dose. There is no other timer on the machine to veryfy that the correct time was set or that the timer did not malfunciton. This article describes a digital timer that has been installed on the MIR therapy machines as a lapsed-time indicator.

UI	MeSH Term	Description	Entries
D011867	Radioisotope Teletherapy	A type of high-energy radiotherapy using a beam of gamma-radiation produced by a radioisotope source encapsulated within a teletherapy unit.	Teleradioisotope Therapy,Teletherapy, Radioisotope,Therapy, Teleradioisotope
D011878	Radiotherapy	The use of IONIZING RADIATION to treat malignant NEOPLASMS and some benign conditions.	Radiotherapy, Targeted,Targeted Radiotherapy,Radiation Therapy,Radiation Therapy, Targeted,Radiation Treatment,Targeted Radiation Therapy,Radiation Therapies,Radiation Therapies, Targeted,Radiation Treatments,Radiotherapies,Radiotherapies, Targeted,Targeted Radiation Therapies,Targeted Radiotherapies,Therapies, Radiation,Therapies, Targeted Radiation,Therapy, Radiation,Therapy, Targeted Radiation,Treatment, Radiation
D011879	Radiotherapy Dosage	The total amount of radiation absorbed by tissues as a result of radiotherapy.	Dosage, Radiotherapy,Dosages, Radiotherapy,Radiotherapy Dosages
D003037	Cobalt Radioisotopes	Unstable isotopes of cobalt that decay or disintegrate emitting radiation. Co atoms with atomic weights of 54-64, except 59, are radioactive cobalt isotopes.	Radioisotopes, Cobalt
D013995	Time	The dimension of the physical universe which, at a given place, orders the sequence of events. (McGraw-Hill Dictionary of Scientific and Technical Terms, 6th ed)	Effects, Long-Term,Effects, Longterm,Long-Term Effects,Longterm Effects,Effect, Long-Term,Effect, Longterm,Effects, Long Term,Long Term Effects,Long-Term Effect,Longterm Effect