Published June 2008 | Version v1
Journal article Metadata-only

Wet-chemistry method for the separation of no-carrier-added 211At/211gPo from 209Bi target irradiated by alpha-beam in cyclotron

Creators

  • 1. LASA, Universita degli Studi di Milano and INFN, Milano (Italy). Radiochemistry Laboratory
  • 2. ENEA, Bologna (Italy). Division for Advanced Physics Technologies
  • 3. Ben Gurion University of the Negev, Beer Sheva (Israel). Department of Nuclear Engineering
  • 4. IHCP, Institute for Health and Consumer Protection, JRC-Ispra, Varese (Italy)

Description

We present a fast and effective wet-chemistry method, used to obtain the pure alpha-emitter 211At/211gPo (T1/2 = 7.214 h/516 ms), produced by 209Bi(α,2n) reaction in NCA form. It is a selective radiochemical separation of the At radionuclides from the target and the impurities, characterized by a radionuclidic purity close to 100%, based on the dissolution and the dilution of the irradiated target in acidic medium, on the extraction with DIPE, followed by the back-extraction with NaOH. As a result, we obtain a yield greater than 90-97% in a range from 0.75M to 2.00M. (author)

Additional details

Publishing Information

Journal Title
Journal of Radioanalytical and Nuclear Chemistry
Journal Volume
276
Journal Issue
3
Journal Page Range
p. 819-824
ISSN
0236-5731
CODEN
JRNCDM

INIS

Country of Publication
Hungary
Country of Input or Organization
Hungary
INIS RN
39091932
Subject category
S38: RADIATION CHEMISTRY, RADIOCHEMISTRY AND NUCLEAR CHEMISTRY;
Descriptors DEI
ALPHA BEAMS; ASTATINE 211; BISMUTH 209 TARGET; CYCLOTRONS; IRRADIATION; ISOTOPE SEPARATION; POLONIUM 211; RADIOCHEMISTRY
Descriptors DEC
ACCELERATORS; ALPHA DECAY RADIOISOTOPES; ASTATINE ISOTOPES; BEAMS; BETA DECAY RADIOISOTOPES; CHEMISTRY; CYCLIC ACCELERATORS; ELECTRON CAPTURE RADIOISOTOPES; EVEN-ODD NUCLEI; HEAVY NUCLEI; HELIUM 4 BEAMS; HOURS LIVING RADIOISOTOPES; ION BEAMS; ISOTOPES; MILLISECONDS LIVING RADIOISOTOPES; NUCLEI; ODD-EVEN NUCLEI; POLONIUM ISOTOPES; RADIOISOTOPES; SECONDS LIVING RADIOISOTOPES; SEPARATION PROCESSES; TARGETS

Optional Information

Notes
13 refs.