Varian High Energy Linear Accelerator Comparison Chart |
||||||
| Models | Trilogy | 21/23iX | Silhouette | 21/23EX | 2100, 2300/C/CD | 1800 |
| Years(s) Manufactured* |
2005 & newer | 2005 & newer | 2001 & newer | 1998 & newer | 1989 & newer | 1982-1989 |
| Powersource | Klystron | Klystron | Klystron | Klystron | Klystron | Klystron |
| Photon Energy Configuration |
6&10/15/18 | 6&10/15/18 | 6&10/15/18 | 6&10/15/18 | 6&10/15/18 | 6&10/15/18/25 |
| Electron Energies | Yes | Yes | Yes | Yes | Yes | Yes |
| Multi-Leaf Collimator (MLC)** |
120 MLC (Field size 40x40cm, Central 20cm of field - 5mm leaf width, Outer 20cm of field - 10mm leaf width) | 80 MLC (Field size 40x40cm); 120 MLC (Field size 40x40cm, Central 20cm of field - 5mm leaf width, Outer 20cm of field - 10mm leaf width) | 80 MLC (Field size 40x40cm); 120 MLC (Field size 40x40cm, Central 20cm of field - 5mm leaf width, Outer 20cm of field - 10mm leaf width) | 80 MLC (Field size 40x40cm); 120 MLC (Field size 40x40cm, Central 20cm of field - 5mm leaf width, Outer 20cm of field - 10mm leaf width) | 52 MLC (Field size 26x40cm, Leaf widths 10mm); 80 MLC (Field size 40x40cm); 120 MLC (Field size 40x40cm, Central 20cm of field - 5mm leaf width, Outer 20cm of field - 10mm leaf width) |
N/A |
| Portal Imager (EPID)** |
aSi1000 | aSi500, aSi1000 | LC250, aSi500, aSi1000 (optional) | LC250, aSi500, aSi1000 (optional) | LC250, aSi500, aSi1000 (optional) | N/A |
| Treatment Delivery | 3D, IMRT, RapidArc, SRS | 3D, IMRT, RapidArc, SRS (optional) |
3D, IMRT, SRS (optional) |
3D, IMRT, SRS (optional) |
3D, IMRT, SRS (optional) |
2D, 3D |
| KV Imaging for IGRT | OBI | OBI | OBI (only certain serial numbers apply) | OBI (only certain serial numbers apply) | OBI (only certain serial numbers apply) | N/A |
| CBCT | OBI | OBI | OBI (only certain serial numbers apply) | OBI (only certain serial numbers apply) | OBI (only certain serial numbers apply) | N/A |
| Stereotactic Radiosurgery** |
Integrated with LINAC | Optional Cones or mMLC | Optional Cones or mMLC | Optional Cones or mMLC | Optional Cones or mMLC | Cones |
| Treatment Couch | Exact IGRT | Exact, Exact IGRT (optional) | ETR, Exact (optional) | Exact | ETR, Exact (optional) | PSA/ETR |
| Demand/Resale Value*** |
$$$$$ | $$$$$ | $$$ | $$$$ | $$ | $ |
**Similar devices are manufactured by vendors other than the linear accelerator manufacturer
***Five $$$$$ indicate that the resale demand for like systems is high, and used equipment will therefore command a higher price
Few dollar signs indicate that the resale demand is lower, and prices for used equipment is lower. One $ indicates very little, if any, value currently exists.
Page 'Breadcrumb' Navigation:
