Yttrium-90 (Yttrium-90)

Yttrium-90: application in radiation therapy

Yttrium-90 is a radioactive isotope of yttrium that is used in radiation therapy to treat tumors. Yttrium-90 is a man-made isotope that is produced by irradiating the stable isotope yttrium-89 (Yttrium-89) in a nuclear reactor. Yttrium-90 has a half-life of 64 hours and emits beta particles with an energy of 2.28 MeV.

The use of yttrium-90 in radiation therapy is based on its ability to destroy tumor cells. Yttrium-90 is introduced into the patient's body in the form of microspheres with a diameter of about 1 mm, which are placed near the tumor or directly injected into it in a special solution. Microspheres containing yttrium-90 enter the circulatory system and move into the tumor vessels, where they emit beta particles, destroying tumor cells.

Yttrium-90 has several advantages over other radioactive isotopes used in radiation therapy. First, its half-life is only 64 hours, allowing the radioactive material to be quickly eliminated from the patient's body. Secondly, yttrium-90 emits only beta particles, which allows for more precise localization of radioactive exposure and reduced side effects on healthy tissue.

Yttrium-90 is used to treat various types of cancer, including liver cancer, pancreatic cancer and lung cancer. Yttrium-90 treatment may be done in combination with other treatments such as surgery and chemotherapy.

However, like any form of radiation therapy, the use of yttrium-90 may be accompanied by side effects such as nausea, vomiting, fatigue and changes in skin condition. Patients undergoing treatment with yttrium-90 should be closely monitored by physicians and follow recommendations for self-care after the procedure.

Overall, the use of yttrium-90 in radiation therapy is an important method in the fight against cancer, which allows for high treatment efficiency and reduced side effects on healthy tissue.



Yttrium-90 is one of the most widely used yttrium isotopes in medical practice. It is widely used for radiation therapy of tumors such as breast, lung, prostate and other organ cancers.

Yttrium-90 is a man-made radioactive isotope that emits beta particles that can be used to destroy tumor tissue. This isotope is used in the form of small balls with a diameter of about 1 millimeter. These balls are injected directly into the tumor or placed near it.

The radioactivity of yttrium-90 makes it hazardous to health, so its use must be strictly controlled and carried out under the supervision of medical personnel.

However, due to its high efficiency in killing tumor cells, yttrium-90 remains one of the most popular isotopes for cancer radiation therapy.



Yttrium 90 is a rare radioactive element of the earth, a semi-precious stone from which filters are made for lanterns, ring inserts, figurines, paintings, as well as interior elements and simply home decorations. It has a very useful emission capacity of gamma radiation, beta radiation 90 Y with a half-life of approximately 50 billion years.

So, due to the nuclear reaction, compounds with yttrium metal have a green color, which determines the name. The value of yttrium-containing mineral is determined based on its chemical characteristics: alkalinity, iron, acidity and amount of precipitation. The larger they are, the higher the value.