High Quality Content by WIKIPEDIA articles! Neutron Capture Therapy (NCT) is a noninvasive therapeutic modality for treating locally invasive malignant tumors such as primary brain tumors and recurrent head and neck cancer. It is a two step procedure: first, the patient is injected with a tumor localizing drug containing a non-radioactive isotope that has a high propensity or cross section (?) to capture neutrons. The cross section of the capture agent is many times greater than that of the other elements present in tissues such as hydrogen, oxygen and nitrogen. In the second step, the patient is radiated with epithermal neutrons, which after losing energy as they penetrate tissue, interact with the capture agent thereby resulting in a biologically destructive nuclear caption reaction (Fig.1). Almost all experience to date with NCT is with the non-radioactive isotope boron-10, and this is known as Boron Neutron Capture Therapy, abbreviated BNCT. At this time, the use of other...

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