title: Characterization of a dynamic multi-leaf collimator for stereotactic radiotherapy applications.
abstract: The Apex® dynamic mini-multileaf collimator has recently been released by Elekta and attaches directly to the linear accelerator head. This paper details the work and results obtained in characterizing this mini-MLC for stereotactic usage within our department. A range of mechanical and dosimetric characteristics were investigated which included inter and intra leaf leakage, light/radiation field congruence, leaf position reproducibility, radiation penumbra, total scatter factors and mechanical rotational stability with the additional mini-MLC weight.
authors: Auckland Radiation Oncology, 98 Mountain Road, Epsom, Auckland 1023, New Zealand. guy.godwin@aro.co.nz
authors: G A
authors: GA
authors: Godwin
authors: J B
authors: JB
authors: Simpson
authors: K V
authors: KV
authors: Mugabe
mesh_terms: D011874:Radiometry; D016634:Radiosurgery / Q000379:methods*; D012542:Scattering, Radiation