Tantalum-178 - a short-lived nuclide for nuclear medicine: production of the parent W-178

Journal Article · Mon May 01 04:00:00 EDT 1978 · J. Nucl. Med.; (United States)

OSTI ID:6477314

Holman, B L; Harris, G I; Neirinckx, R D; Jones, A G; Idoine, J

The physical decay characteristics of the short-lived radionuclide Ta-178 (half-life 9.3 min) appear to be suitable for use in conjunction with low-energy detection systems such as the multiwire proportional camera. This camera is inefficient for emissions with energies greater than 100 keV. The gamma-ray spectrum of Ta-178 is dominated by the characteristic hafnium x-rays (55 to 65 keV), emitted as a result of electron-capture decay. The parent nuclide, W-178 (half-life 21.7 d), was produced in the Michigan State University cyclotron by proton bombardment of stacked natural tantalum-foil targets. Optimum production was found to occur with an incident proton energy of 34 MeV at an effective activity of 1.1 mCi/..mu..A-hr per MeV of target thickness. Tungsten-178 was chemically separated from the Ta foils with a yield of 98%.

• Research Organization: Harvard Medical School, Boston, MA
• OSTI ID: 6477314
• Journal Information: J. Nucl. Med.; (United States), Journal Name: J. Nucl. Med.; (United States) Vol. 19:5; ISSN JNMEA
• Country of Publication: United States
• Language: English

Related Subjects

38 RADIATION CHEMISTRY, RADIOCHEMISTRY, AND NUCLEAR CHEMISTRY
400703 -- Radiochemistry & Nuclear Chemistry-- Radioisotope Production
550601* -- Medicine-- Unsealed Radionuclides in Diagnostics
62 RADIOLOGY AND NUCLEAR MEDICINE
BETA DECAY RADIOISOTOPES
BETA-PLUS DECAY RADIOISOTOPES
BODY
CARDIOVASCULAR SYSTEM
COUNTING TECHNIQUES
DAYS LIVING RADIOISOTOPES
DIAGNOSTIC TECHNIQUES
ELECTRON CAPTURE RADIOISOTOPES
EVEN-EVEN NUCLEI
HEART
HOURS LIVING RADIOISOTOPES
INTERMEDIATE MASS NUCLEI
ISOTOPE PRODUCTION
ISOTOPES
MEASURING INSTRUMENTS
MINUTES LIVING RADIOISOTOPES
MULTIWIRE PROPORTIONAL CHAMBERS
NUCLEI
ODD-ODD NUCLEI
ORGANS
PROPORTIONAL COUNTERS
RADIATION DETECTORS
RADIOISOTOPE SCANNING
RADIOISOTOPES
SCINTISCANNING
TANTALUM 178
TANTALUM ISOTOPES
TUNGSTEN 178
TUNGSTEN ISOTOPES