LLX separation of carrier-free,94,95,97,103Ru,93,94,95,96,99mTc and95,96Nb produced in alpha-particle activated molybdenum by TOA

Across the energy scale: from eV to GeV

“…Targets were mounted on thin aluminum foil backing. This is the first time when 9 Be was used as projectile to produce At radionuclides. The experimentally obtained cross-sections were in general less than the theoretical values.…”

“…= 2.44 MeV) is useful in positron emission tomography, 95 Tc (T 1/2 = 20 h) is important in monitoring slow metabolic functions of brain and heart, etc. Following the protocol, for the first time we have investigated heavy ion induced production route of neutron deficient 93,94,95 Tc radionuclides by bombarding 9 Be on natural yttrium target ( 89 Y, 100 % natural abundance). Attempt has been made to develop different radiochemical separation technique for isolation of NCA Tc radionuclides from the bulk target matrix [53,54].…”

“…Therefore numbers of radionuclides of different elements were produced in single target matrix. Efficient radiochemical separation methods were developed afterwards, so that radionuclides of different elements can be put in different confinements [4][5][6][7][8][9][10]. The precious cyclotron time was saved; radionuclides of different elements were produced in a single accelerator run.…”

Comparison on the production of radionuclides in 1.4 GeV proton irradiated LBE targets of different thickness

“…Similarly, 205 Bi (T 1/2 -= 15.31 days) is used as a tracer in biodistribution studies and in the design and testing of a-emitting radiotherapeutic agents [41]. Apart from the medical uses, the other radioisotopes such as 75Se (T 1/2 = 119.8 days) are also used as tracers to study the selenium adsorption properties in bentonites (clay), migration in plants and fruits [42,43], whereas 95 Nb (T 1/2 -= 34.97 days) is used as a 95Zr/ 95 Nb chronometer for dating nuclear events [44,45]. 133 Ba (T 1/2 = 10.5 years) is used as a tracer to study perturbed angular correlation parameters in bovine serum albumin, sorption of radionuclide in estuarine sediments [46].…”

Separation of 97Ru from niobium target using PEG based aqueous biphasic systems

“…Separation of NCA 97 Ru from irradiated molybdenum target was also carried out using ion-exchange technique by passing solution of 97 Ru along with bulk molybdenum through the tin dioxide column followed by an anion exchange column [25]. Lahiri et al [28,29] reported separation of NCA 97 Ru from coproduced 93,94,95,96,99m Tc, 95,96 Nb and bulk Mo using liquid-liquid extraction (LLX). In this technique, liquid anion exchanger as trioctylamine (TOA) or liquid cation exchanger as di-(2-ethylhexyl)phosphoric acid (HDEHP) along with tri-butyl phosphate (TBP) was employed for the separation of 97 Ru.…”