According to the company, Strontium-89 is a pure
beta emitter and selectively irradiates sites of primary and metastatic bone involvement with minimal irradiation of soft tissues distant from bone lesions.
However, in its native state tritium is a low-energy
beta emitter and, as beta particles do not penetrate human skin, is typically harmless to humans.
Furthermore, the optimal energy window for a particular
beta emitter is still a matter of debate within the research community [24].
It also contains a Beta Activity Determination Chart to determine the activity of a known
beta emitter from a measurement with the monitor.
Strontium-90 (
beta emitter) concentrations were determined in foods of Alaska Native peoples using caribou taken in 1961 from Shungnak, which had 2.5-3.0 Bq/g ash for bone and 0.02-0.06 Bq/g ash for meat.
I then chose three species, 3H (a pure
beta emitter with no gammas), 18F and 22Na (both of which decay by both electron capture and positron emission) and was somewhat surprised to see them as having no betas or, in the case of the latter two, as undergoing electron capture with no mention of positron decay.
Injecting phosphorus-32, a pure
beta emitter, into the affected joints achieves the same result without the surgery and for a cost of perhaps only $4,000, he says.
Based on the zero threshold energy for neutrino absorption
beta emitters, a model for configuration mixing between distinct [[beta].sup.v]-disintegration (the electrons from neutrino interaction) and the [[beta].sup.-]-disintegration (the electrons from natural decay) was proposed.
The therapeutic radiopharmaceuticals market is further segmented into
beta emitters, alpha emitters, and brachytherapy.