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a silvery metallic element that is common in rare-earth minerals; used in magnesium and aluminum alloys (同)Y, atomic number 39

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イットリウム(希土類元素;化学記号は Y)

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出典(authority):フリー百科事典『ウィキペディア（Wikipedia）』「2016/02/04 03:12:22」(JST)

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Yttrium-90 Full table
General
Name, symbol	Yttrium-90,⁹⁰Y
Neutrons	51
Protons	39
Nuclide data
Half-life	64.1 h

Yttrium-90, 90Y, is a medically significant isotope of yttrium.^[1] Yttrium-90 has a wide and valuable use in radiation therapy to treat cancer.^[2]

DecayEdit

90Y undergoes β⁻ decay to zirconium-90 with a half-life of 64.1 hours^[3] and a decay energy of 2.28 MeV.^[4] It also produces 0.01% 1.7 MeV^[5] photons along the way. Interaction of the emitted electrons with matter can lead to Bremsstrahlung radiation.

ProductionEdit

Yttrium-90 is a decay product of strontium-90 which makes up about 5% of the nuclear daughter isotopes when uranium is fissioned.^[6]^{[not in citation given]} Yttrium-90 is produced by chemical high-purity separation from strontium-90, a fission product of uranium in nuclear reactors.^[7]

ReferencesEdit

^ Vincent T. DeVita; Theodore S. Lawrence; Steven A. Rosenberg; Robert A. Weinberg; Ronald A. DePinho (1 April 2008). DeVita, Hellman, and Rosenberg's cancer: principles & practice of oncology. Lippincott Williams & Wilkins. pp. 2507–. ISBN 978-0-7817-7207-5. Retrieved 9 June 2011.
^ Arkadiy Kheyfits (October 2010). "Yttrium-90 Radioembolization". Radiology Today. Retrieved 2012-10-23.
^ "Y-90 Handling Precautions" (PDF). Retrieved 2015-07-15.
^ "Table of Isotopes decay data". The Lund/LBNL Nuclear Data Search. February 1999. Retrieved 2012-10-23.
^ Rault, E.; Vandenberghe, S.; Staelens, S.; Lemahieu, I. (2009). Optimization of Yttrium-90 Bremsstrahlung Imaging with Monte Carlo Simulations. 4th European Conference of the International Federation for Medical and Biological Engineering. pp. 500–504. Retrieved 21 October 2013.
^ "Strontium | Radiation Protection | US EPA". EPA. 24 April 2012. Retrieved 2012-10-23.
^ "PNNL: Isotope Sciences Program - Yttrium-90 Production". PNNL date=February 2012. Retrieved 2012-10-23.

External linksEdit

CID 104760 from PubChem

This isotope-related article is a stub. You can help Wikipedia by expanding it.

English Journal

Japanese Journal

日本における⁹⁰Y-イブリツモマブ・チウキセタンの適正使用

血液内科 = Hematology 73(3), 423-434, 2016-09
NAID 40020963689

Transarterial Y90 radioembolization versus chemoembolization for patients with hepatocellular carcinoma: A meta-analysis

BioScience Trends 9(5), 289-298, 2015
NAID 130005109616

化学リーチングによるレアアース泥からのレアアース回収方法の検討:–レアアース泥の開発と工学的利用に向けて–

Journal of MMIJ 130(4), 104-114, 2014
NAID 130005064006

Related Links

ストロンチウム-90（90Sr） | 原子力資料情報室（CNIC）

半減期 28.79年崩壊方式ベータ線を放出してイットリウム-90(90Y、64.00時間)となり、イットリウム-90もベータ崩壊してジルコニウム-90(90Zr)となる。イットリウム-90は、核分裂直後はほとんど存在しないが、時間の経過とともに量が増す。

ゼヴァリン®イットリウム（90Y）静注用セット | 富士フイルム ...

イットリウム（ 90 Y）から放射されるβ線は、近傍の腫瘍細胞にも照射されるため、大きな腫瘍や血管分布の少ない腫瘍にもダメージを与えます。ゼヴァリンインジウムで適格と診断された場合に用います。

Yttrium-90 (Y-90) - Advancing Nuclear Medicine

Yttrium-90 production. We are involved in the production of medical isotopes for medical devices used in radioembolization for a long time. Bot yttrium-90 and holmium-166 are part of NRG’s product portfolio. Our full-service approach includes preparing irradiation capsules, irradiation, waste handling and logistics.