Excitation Function and Yield for 97Ru Production in 99Tc(p,3n)97Ru Reaction in 20 – 100 MeV Proton Energy Range

Zaitseva, N.G.; Rurarz, E.; Vobecký, Miloslav; Hwan, Kim Hyn; Nowak, K.; Těthal, T.; Khalkin, V.A.; Popinenkova, L.M.

doi:10.1007/978-3-642-58113-7_175

Cited by 9 publications

(11 citation statements)

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“…The 97 Ru radionuclides have been produced so far either by neutron activation or by light charged particle activation like nat Rh( p, 2 p5n) 97 Ru [7,8], nat Ag( p, X) 97 Ru [9,10], 99 Tc( p, 3n) 97 Ru [11,12], 95 Mo(α, 2n) 97 Ru [13], 94 Mo(α, n) 97 Ru [13], nat Mo( 4 He, xn) 97 Ru [14][15][16][17], nat Mo( 3 He, xn) 97 Ru [14,15], etc. The reactor produced 97 Ru through 96 Ru(n, γ ) 97 Ru reaction has limited applications for in vivo studies due to (i) its low specific activity, i.e., it does not offer no-carrier-added (nca) product, which is desired in clinical applications (ii) it needs enriched 96 Ru (natural abundance is only 5.52%), which is expensive.…”

Section: Introductionmentioning

confidence: 99%

Production and separation of ⁹⁷Ru from ⁷Li activated natural niobium

Maiti

Lahiri²

2011

Radiochimica Acta

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7 Li induced nuclear reaction / Heavy ion activation / 97 Ru / Production yield / Liquid-liquid extraction / Solid-liquid extraction Summary. The proton rich 97 Ru, a potential candidate for nuclear medicine, was produced for the first time through the nat Nb( 7 Li, 3n) 97 Ru reaction. A natural Nb foil of 20 mg/cm 2 thickness was irradiated with 32 MeV 7 Li beams to attain the yield of ∼ 1 MBq/µA h for 97 Ru. The no-carrier-added 97 Ru was separated from the bulk niobium by liquid-liquid extraction (LLX) and solid-liquid extraction (SLX) techniques. Liquid cation exchanger, di-(2-ethylhexyl)phosphoric acid (HDEHP) dissolved in cyclohexane was used in LLX and solid cation exchanger, DOWEX-50 was used for SLX in HCl. The LLX technique was found to be superior to the SLX technique with respect to radiochemical yield and purity of the radionuclide 97 Ru.

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Section: Introductionmentioning

confidence: 99%

Production and separation of ⁹⁷Ru from ⁷Li activated natural niobium

Maiti

Lahiri²

2011

Radiochimica Acta

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“…Apart from neutron activation product, 97 Ru have been produced in different light ion ( p, α and 3 He) induced reactions on natural and enriched targets [6][7][8][9][10][11][12][13][14][15][16][17]. Effort has also been made to produce it even by 99 Tc( p, 3n) 97 Ru reaction using a metallic target of long lived 99 Tc (2.111 × 10 5 yr) [9][10][11]. In spite of some attractive criterion, such as high yield (∼ 1 mCi/μA h) of 97 Ru can be achieved in the 99 Tc( p, 3n) 97 Ru reaction, this particular route is not appropriate for regular production as the target is radioactive, not easily available and expensive.…”

Section: Introductionmentioning

confidence: 99%

Production and separation of ⁹⁷Ru and coproduced ⁹⁵Tc from ¹²C-induced reaction on yttrium target

Maiti¹

2013

Ract

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C-induced reaction on yttrium / Heavy ion reaction / 97 Ru / 95 Tc / Thick target yield / Radiochemical separation / Liquid-liquid extraction / LLXSummary. An attempt has been made to produce no-carrieradded (nca) 97 Ru for the first time from the 12 C-induced reaction on yttrium target. A nat Y foil of 10 mg/cm 2 thickness was irradiated by 75 MeV 12 C beams for 3.5 h and a thick target yield of 514 kBq/μA h for 97 Ru and 338 kBq/μA h for 95 Tc was achieved. The nca 97 Ru and coproduced nca 95 Tc were then radiochemically separated from the bulk target by liquid-liquid extraction (LLX). Liquid cation exchanger di-(2-ethylhexyl)phosphoric acid (HDEHP), liquid anion exchanger trioctylamine (TOA) were used in this study. The technique offers efficient chemical separation of the products, resulting in very high separation factors.

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“…The 96 Ru(n,) route results in no carrier free products. At accelerators many options were proposed and investigated: 99 Tc(p,3n) [31,32], nat Mo( 3 He,xn) [33], nat Mo(,xn) [34][35][36][37], the here presented 103 Rh(p,x) path [3,9] and Y-targets with heavier ions [38]. Deuteron induced reactions on Rh require even higher energy, which is practically not available for routine production.…”

Section: Production Of 97 Rumentioning

confidence: 99%

Investigation of activation cross sections of proton induced reactions on rhodium up to 70 MeV for practical applications

Tárkányi

Ditrói

Takács

et al. 2017

Nuclear Instruments and Methods in Physics Research Section B:

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Excitation functions were measured for the production of the 101,100 Pd, 102m, 102g,101m,101g,100,99m,99g Rh and 97 Ru radionuclides by bombardment of 103 Rh targets with proton beams up to 70 MeV, some of them for the first time. The new results are compared with the earlier experimental data and with the theoretical nuclear model code calculations from ALICE-IPPE, EMPIRE and TALYS 1.6. Thick target yields were deduced and possible application of the new data for production of medically relevant 101m,101g Rh and 97 Ru are discussed. Hermanne et al. [3] and Sudar et al. [13]). Yield data at low energies were reported by Dmitriev et al. [14]. Rhodium and rhodium alloys are used in fusion, fission technology and nuclear transmutation, where secondary high energy protons are induced. Reliable high energy experimental data are important for these applications.Nowadays medium energy accelerators were introduced in medical isotope production (cyclotrons and linear accelerators). Some radioisotopes can be produced only in this way and some others due to the smaller stopping power of high energy protons can be produced more effectively, compared to low energy accelerators. In present work the production of 97 Ru, 101m Rh and 101g Rh are the related isotopes. ExperimentalThe excitation functions for the 103 Rh(p,x) reactions were measured at the cyclotron of Tohoku University (CYRIC, Sendai, Japan) using the stacked foil technique. The experimental method was similar to the techniques used in our numerous earlier investigations of charged particle induced nuclear reactions for different applications. One stack was irradiated using 70 MeV incident proton energy. 103 Rh(p,pn) -9318.94 101m Rh 4.34 d 306.86 81 103 Rh(p,p2n) -16759.86

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Excitation Function and Yield for 97Ru Production in 99Tc(p,3n)97Ru Reaction in 20 – 100 MeV Proton Energy Range

Cited by 9 publications

References 9 publications

Production and separation of ⁹⁷Ru from ⁷Li activated natural niobium

Production and separation of ⁹⁷Ru from ⁷Li activated natural niobium

Production and separation of ⁹⁷Ru and coproduced ⁹⁵Tc from ¹²C-induced reaction on yttrium target

Investigation of activation cross sections of proton induced reactions on rhodium up to 70 MeV for practical applications

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Excitation Function and Yield for 97Ru Production in 99Tc(p,3n)97Ru Reaction in 20 – 100 MeV Proton Energy Range

Cited by 9 publications

References 9 publications

Production and separation of 97Ru from 7Li activated natural niobium

Production and separation of 97Ru from 7Li activated natural niobium

Production and separation of 97Ru and coproduced 95Tc from 12C-induced reaction on yttrium target

Investigation of activation cross sections of proton induced reactions on rhodium up to 70 MeV for practical applications

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Production and separation of ⁹⁷Ru from ⁷Li activated natural niobium

Production and separation of ⁹⁷Ru from ⁷Li activated natural niobium

Production and separation of ⁹⁷Ru and coproduced ⁹⁵Tc from ¹²C-induced reaction on yttrium target