=
Note: Conversion is based on the latest values and formulas.
Thulium-170 heat source (Technical Report) - OSTI.GOV 6 Sep 1990 · An isotopic heat source is formed using stacks of thin individual layers of a refractory isotopic fuel, preferably thulium oxide, alternating with layers of a low atomic weight diluent, preferably graphite.
Thulium-170 | chemical isotope | Britannica - Encyclopedia Britannica …neutrons, natural thulium becomes radioactive thulium-170 (128.6-day half-life), which ejects soft gamma radiation with wavelength commensurate with laboratory hard X-ray sources. Only one allotropic (structural) form is known for thulium.
Thulium-170 - isotopic data and properties - chemlin.org Properties and data of the isotope 170 Tm. Thulium isotopes. ½ 128.6 (3) d 1.1111040 × 107 seconds s. The following table shows the atomic nuclei that are isotonic (same neutron number N = 101) and isobaric (same nucleon number A = 170) with Thulium-170.
Thulium-170 - Wikipedia Thulium-170 (170Tm or Tm-170) is a radioactive isotope of thulium proposed for use in radiotherapy and in radioisotope thermoelectric generators. Thulium-170 has a binding energy of 8 105.5144 (43) keV per nucleon and a half-life of 128.6 ± 0.3 d.
Thulium-170 | Tm | CID 161009 - PubChem 14 Oct 2021 · Thulium-170 | Tm | CID 161009 - structure, chemical names, physical and chemical properties, classification, patents, literature, biological activities, safety/hazards/toxicity information, supplier lists, and more.
Calorimetrically measured half-life of thulium-170 - ScienceDirect A half-life of 128 ± 1 days for thulium-170 was determined calorimetrically. Two 170 Tm sources of about 1 W each were measured for 140 days. The sources were produced by neutron irradiation of 169 Tm 2 O 3 wafers, to a specific power of ∼ 2 W/g.
Isotopes of thulium - Wikipedia Thulium-170 has a half-life of 128.6 days, decaying by β − decay about 99.87% of the time and electron capture the remaining 0.13% of the time. [1] Due to its low-energy X-ray emissions, it has been proposed for radiotherapy [6] and as a source in a radiothermal generator. [7]
Production, quality control and biodistribution studies of thulium-170 ... In this study 170 Tm was produced using Tm (NO 3) 3, prepared by neutron activation (3–4E13) of a natural sample. Ethylenediamine (tetramethylene phosphonic acid) (EDTMP) was synthesized and radiolabeled with 170 Tm. Complexation parameters …
Transmission electron microscope image of the 170 Abstract The present article describes the preparation, characterization, and biological evaluation of Thulium-170 ((170)Tm) [T1/2=128.4 days; Eβ(max)=968 keV; Eγ=84 keV (3.26%)] labeled...
IYPT 2019 Elements 069: Thulium: Portable X-rays and banknotes 17 Sep 2019 · One of thulium’s isotopes, thulium-170, can be used as a radioactive source in portable X-ray machines. These machines have a useful life of around a year. Thulium-170 has also been investigated as a potential treatment for some types of cancer.
Thulium-170-labeled microparticles for local radiotherapy The present article describes the preparation, characterization, and biological evaluation of Thulium-170 ((170)Tm) [T1/2 = 128.4 days; Eβmax = 968 keV; Eγ = 84 keV (3.26%)] labeled tin oxide microparticles for its possible use in radiation synovectomy (RSV) of medium-sized joints.
Infrastructure for thulium-170 isotope power systems for … 1 Jul 1991 · The radioisotope thulium-170 is a safe and environmentally benign heat source for providing the high endurance and energy densities needed by advanced power systems for autonomous underwater vehicles (AUV).
Thulium - Wikipedia Despite its high cost, portable X-ray devices use thulium that has been bombarded with neutrons in a nuclear reactor to produce the isotope Thulium-170, having a half-life of 128.6 days and five major emission lines of comparable intensity (at 7.4, 51.354, 52.389, 59.4 and 84.253 keV).
(PDF) Thulium-170-Labeled Microparticles for Local Radiotherapy ... 3 Oct 2014 · These preliminary studies showed that (170)Tm-labeled microparticles could be a promising nontoxic and effective radiopharmaceutical for RSV applications or later local antitumor therapy.
Atomic Beam Study of the Hyperfine Structure of Thulium-170 The atomic-beam magnetic-resonance technique has been used to measure atomic and nuclear quantities of the 129-day isotope Tm 170 as follows: J = 7 2, g J = 1.14122 ± 0.00015, I = 1, | A | = 200 ± 3 Mc/sec, and | B | = 1010 ± 15 Mc/sec. The values of J and g J are consistent with the ground-state assignment F 7 2 2.
Chapter 10 Thulium-170 radiopharmaceuticals for bone pain … Thulium-170 is presented as a promising radiopharmaceutical for palliation of bone pain due to metastatic cancers. Its physical and chemical properties are analyzed, highlighting advantages over other radionuclides like Strontium-89, particularly in terms of lower beta energy and suitable gamma emissions for imaging.
Thulium Facts, Symbol, Discovery, Properties, Uses - Chemistry … Thulium-170 (170 Tm), a radioactive isotope formed by bombarding thulium in a nuclear reactor, can be used as a portable source of radiation in medical x-ray machines [1, 7]. The element 69 is used as a dopant in fiber lasers for surgical applications [1, 3].
Thulium-170 | 13981-30-1 - ChemicalBook Thulium-170 | 13981-30-1 - chemical and physical properties, structure, melting point, boiling point, density, molecular formula, molecular weight, uses, prices, suppliers, and toxicity/safety/hazards/SDS information.
Feasibility of Thulium‐170, Produced on Site, for Radioisotope … 1 Jul 1994 · Thulium‐170 has been suggested as a replacement for 238 Pu jn some radioisotope power generation applications. The proposed approach is to activate 169 Tm within the core or reflector of a stationary site power nuclear reactor at a Lunar or Mars outpost.