SunSILICON™ and SunSILICON™ P are precision-engineered silicon diode detectors for advanced relative dosimetry in cylindrical water phantoms.
Designed to meet evolving clinical needs, these waterproof detectors provide high signal fidelity and robust stability, plus compatibility with IMRT, SRT, and IGRT techniques.
Key Benefits
- Custom, fully guarded p-type silicon diode
- Small active volume of 0.053 mm³ for high spatial resolution
- High sensitivity for faster scanning speeds
- Leading radiation hardness and leakage characteristics for better data quality
- Water-equivalent housing using HE Solid Water®
- Clearly marked housing for simplified setup
- Consistent detector-to-detector performance enabled by tighter mechanical tolerances
- Low dose per pulse dependence

SunSILICON™
An unshielded silicon diode detector
for relative electron and small photon
field dosimetry
Field Size Range | (1 x 1) cm² to (10 x 10) cm² (photons) (1 x 1) cm² to (40 x 40) cm² (electrons) | |
Smallest Field Size* | (0.4 x 0.4) cm² |
* Refer to IAEA TRS-483 or AAPM TG-155 for the methodology of applying field output correction factors to ensure high-accuracy output factor measurements in very small photon fields.

SunSILICON™ P
A shielded silicon diode detector
for relative photon dosimetry
Field Size Range | (2 x 2) cm² - (40 x 40) cm² (photons) | |
Smallest Field Size* | (1.2 x 1.2) cm² |
* Refer to IAEA TRS-483 or AAPM TG-155 for the methodology of applying field output correction factors to ensure high-accuracy output factor measurements in very small photon fields.

“These detectors strengthen our portfolio for commissioning electron linear accelerators through superior measurement precision and handling.”
Ready to add the SunSILICON and SunSILICON P detectors to your toolkit?
Resources

Publications
- Impact of detector selections on inter-institutional variability of flattening filter-free beam data for TrueBeam™ linear accelerators
- The clinical impact of detector choice for beam scanning
- Correction factor measurements for multiple detectors used in small field dosimetry on the Varian Edge radiosurgery system
- Measurement of Output and Percent Depth Dose (PDD) for Small Stereotactic Radiosurgery (SRS) Cones Using Semiconductor and Microdiamond Detectors
- Stereotactic Detector Comparisons for Small Field Relative Dosimetry
- End-To-End Testing of Linac-Based SRS Using Radiochromic Film & CIRS STEEV Phantom
- Variation of Detector Specific Output Correction Factors for Small Fields From Different Linacs/collimation Systems
- Intercomparison of Stereotactic Scanning Diodes for Small Field Dosimetry
- Experimental Comparison of Seven Commercial Dosimetry Diodes for Measurement of Stereotactic Radiosurgery Cone Factor
- MoreLess
Specifications
External Dimensions (Diameter x length) |
8.22 mm x 59 mm |
Cable Length |
1.5 meters nominal |
Detector Type |
Unshielded p-type silicon diode |
Field Size Range |
(1 x 1) cm² to (10 x 10) cm² (photons) |
Smallest Field Size* |
(0.4 x 0.4) cm² |
Sensitivity |
36 nC/Gy |
Output Polarity |
Negative |
Connector |
BNC or TNC |
Impedance |
> 1000 MΩ |
Active Volume |
0.053 mm³ |
Water Equivalent Build-up |
1.25 mm |
Reference Point |
1 mm from top surface, as indicated by crosshair markings |
MoreLess |
External Dimensions (Diameter x length) |
8.22 mm x 59 mm |
Cable Length |
1.5 meters nominal |
Detector Type |
Shielded p-type silicon diode |
Field Size Range |
(2 x 2) cm² - (40 x 40) cm² (photons) |
Smallest Field Size* |
(1.2 x 1.2) cm² |
Sensitivity |
38 nC/Gy |
Output Polarity |
Negative |
Connector |
BNC or TNC |
Impedance |
> 1000 MΩ |
Active Volume |
0.053 mm³ |
Water Equivalent Build-up |
1.25 mm |
Reference Point |
1 mm from top surface, as indicated by crosshair markings |
MoreLess |