Formaldehyde increases MAGIC gel dosimeter melting point and sensitivity

Evaluation of a composite Gel‐Alanine phantom on an end‐to‐end test to treat multiple brain metastases by a single isocenter VMAT technique

“…The MAGIC‐f gel dosimeter was used. The dosimeter was prepared in a fume hood under normal levels of oxygen according to the work of Fernandes et al 2008 . The dosimeter was applied in the same way as described in papers …”

Applications to Radiotherapy Using Three Different Dosimetric Tools: MAGIC-f Gel, PENELOPE Simulation Code and Treatment Planning System

“…Samples of MAGIC-f gel were manufactured following the protocols establish by Fernandes [15] and poured into three cylindrical glass tubes routinely used for blood sample collection (BD Vacutainer ® ) with 5ml volume, 12mm diameter for a specific measurement. Experimental irradiations were made at Hospital de Câncer de Barretos (HCB), using a Varian 2100c linear accelerator.…”

“…Another problem presented by the polymer gels was the melting of the samples when stored at room temperature causing loss of information about dose distribution thereby restricting its use. In 2008, Fernandes and colleagues [15] solved this problem by adding formaldehyde to the original formulation of the MAGIC increasing its melting point to 69 ° C, and named the new gel MAGIC-f.…”

3D Dosimetric Tools in Radiotherapy for Photon Beams

“…The suppression of polymerization by oxygen, present in these gels, was improved with a proposition of MAGIC gel (Methacrylic and Ascorbic acid in Gelatin Initiated by Copper) [27], which allows the MAGIC polymeric gels to be prepared in normal weather conditions [28][29][30], which for higher temperatures beyond 25 °C loss stability. Thus, was add formaldehyde to the original formulation of the MAGIC, re-calling as MAGIC-f, which led to a rise in its melting point to 69 °C [31].…”