Clinac 2100 cd linac

Manufactured by Agilent Technologies

The CLINAC 2100 CD is a linear accelerator (linac) designed for cancer treatment. It is capable of generating high-energy x-rays and electron beams for radiation therapy. The device is used to deliver precise and targeted radiation to tumor sites while minimizing exposure to surrounding healthy tissue.

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Lab products found in correlation

Portal vision a s500, by Agilent Technologies (1 mentions) Millennium 120, by Agilent Technologies (1 mentions)

Close spelling variants of this product

Clinac 2100 CD Clinac 2100 Linacs

2 protocols using clinac 2100 cd linac

VIPER Software for 3D Dose Verification

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The VIPER software was developed at the Calvary Mater Newcastle Hospital (CMNH) for EP-ID-based 3D dose distribution reconstruction onto a virtual water phantom [25 (link), 26 (link)]. VIPER can be used for either 2D or 3D dose reconstruction to perform dosimetric verification of the individual fields or composite plan, respectively. However, it was shown by Kruse that single field planar verification is insensitive and not sufficient to detect important dosimetric inaccuracies of the overall IMRT plan [27 (link)]. Therefore, 3D reconstructed dose-based verification is better than using 2D reconstructed doses. The resulting 3D dose can be compared with the corresponding dose distribution computed by a treatment planning system (TPS) to be evaluated.
Instructions provided by CMNH were followed to obtain a VIPER (v. 3.10 beta, May 2019) calibration tailored to our facility. VIPER was configured for 6 MV beams from a Varian CLINAC 2100 CD linac (Varian Medical Systems, Palo Alto, CA), equipped with the Millennium 120 multileaf collimator (MLC) and the PortalVision aS500 EPID. Repetition rate of 600 monitor units per minute was used.
The validation and feasibility of VIPER for SRS plan verification were described by our group in a recent publication [24 (link)].

Calvo-Ortega J.F., Greer P.B., Moragues-Femenía S., Pozo-Massó M, & Casals-Farran J. (2022). Verification of stereotactic radiosurgery plans for multiple brain metastases using a virtual phantom-based procedure. Reports of Practical Oncology and Radiotherapy, 27(3), 449-457.

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Dynamic Conformal Arc Radiotherapy Technique

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The DCARS modality is an arc rotational delivery technique in which the leaves move during the rotation of the gantry to dynamically adapt the shape of the treatment beam to the beam's eye view of the target. The beam collimation for DCARS plans was made using the BrainLAB M3 MLC attached to the linac. This collimator has 26 pairs of leaves, of which the central ones have a width of 3.0 mm and the external ones a width of 5.5 mm relative to the isocenter. The DCARS plans were calculated with the BrainLAB iPlan RT Dose version 4.1 TPS using the pencil beam algorithm commissioned for 6 MV beams from a Varian Clinac 2100 CD linac.[ 12 ] Dose calculations were made with the radiological path length for tissue heterogeneity correction. An adaptive calculation of grid size <1.0 mm was applied to smaller lesions. The dynamic arc plans normally consisted of 5 noncoplanar arcs. When required, the arc position and lengths were modified to avoid the eyes. A MLC margin of 1-2 mm to the PTV was used in each DCARS plan.

Calvo-Ortega J.F., Delgado D., Moragues S., Pozo M, & Casals J. (2016). Dosimetric comparison of intensity modulated radiosurgery with dynamic conformal arc radiosurgery for small cranial lesions. Journal of cancer research and therapeutics, 12(2).

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