Effect of mirror system and scanner bed of a flatbed scanner on lateral response artefact in radiochromic film dosimetry.

Radiochromic film, evaluated with flatbed scanners, is used for practical radiotherapy QA dosimetry. Film and scanner component effects contribute to the Lateral Response Artefact (LRA), which is further enhanced by light polarisation from both. This study investigates the scanner bed's contribution to LRA and also polarisation from the mirrors for widely used EPSON scanners, as part of broader investigations of this dosimetry method aiming to improve processes and uncertainties.

Identifying Ageism Within Australian Local Government Physical Activity Policy: A Critical Discourse Analysis.

This research aims to identify ageist content concerning older adults within local government physical activity policy. Policies are not passive texts; they can comprise hidden or disputed connotations. To identify ageism, the study utilizes a critical discourse analysis approach to analyze physical activity policy documents (n = 61) from 16 local government areas in Victoria, Australia, and the perceptions of local government employees trusted with developing these policies, which were gathered during semistructured interviews (n = 11).

Identifying strategies for facilitating physical activity among older adults: A behaviour change wheel 'retrofit' driven analysis of Victorian local government policy.

Issue Addressed: The significance of physical activity (PA) for the health and wellbeing of older adults is well documented. Local government (LG) publish PA policy and interventions to encourage and improve older adult PA participation. However, LG documents have rarely been studied to examine the extent to which LG incorporates evidence-based strategies into the development of older adult PA policy.

Effect of scanner lens on lateral response artefact in radiochromic film dosimetry.

Radiochromic film is a good dosimeter choice for patient QA for complex treatment techniques because of its near tissue equivalency, high spatial resolution and established method of use. Commercial scanners are typically used for film dosimetry, with Epson scanners being the most common. Radiochromic film dosimetry is not straightforward having some well-defined problems which must be considered, one of the main ones being the Lateral Response Artefact (LRA) effect.