TRUEinvivo 1D (linear), 2D(mesh) and 3D (cavity) DOSEmapper™ micro silica bead array TLDs are suitable for medical physics applications that use X, γ, β, proton and neutron radiations. This includes external beam radiotherapy and brachytherapy treatments. For more details of the actual TLD material see the Researcher pages.
The 1D DOSEmappers shown on the glove above are typically eighty (80) dual bead measuring points with 1mm spacing between each set. This gives a very high resolution of dose measurement in any natural orifice. The DOSEmappers are typically used for the planning CT and the first fraction. Our automated reader reads the DOSEmapper 160 TLDs in about 30 minutes. 1D DOSEmappers can be ordered to any length up to 400 beads and different spacing/resolution. We have supplied them with as few as 5 detector beads at 1mm resolution for commissioning work.
The 2D DOSEmapper shown on the left (10 x 10 taped to a phantom) has 100 double bead measuring points in a mesh that can be used in breast cancer treatment or on any other curved skin area. The 2D DOSEmappers also come in 5 x 5 and 20 x 20 sizes. Other sizes can be made to order.
The 3D DOSEmapper (prototype also shown on the left) effectively has a 1D DOSEmapper wrapped in a spiral along the length of a central catheter and former. When used as a rectal insert the 3D DOSEmapper beads measure the received doses at the rectal wall. This is especially useful for the treatment of prostate cancer when the total number of fractions could be reduced if the doses to organs at risk could be measured giving clinicians confidence to safely increase the fractional doses.