Sensor Local Shielding
Targeted Shields Around Radiation-Sensitive Sensors
Sensor local shielding consists of targeted, typically 10-millimeter-thick tungsten alloy and high-density polyethylene enclosures mounted directly around radiation-sensitive instruments, including CCD and CMOS cameras, atomic clocks, and optical detectors. Without a lunar magnetosphere to deflect space radiation, unmitigated exposure degrades solid-state sensors and accelerates atomic clock aging. The system deploys 30 modular, robotically replaceable shields totaling 100 kilograms, using stainless attachments designed to preserve clear fields of view for optical apertures. Consuming zero electrical power, these physical barriers provide passive radiation protection engineered for a 50-year operational lifetime.
Targeted local shielding around radiation-sensitive sensors (CCD/CMOS cameras, atomic clocks, optical detectors) extending sensor life.
Purpose
Targeted local shielding around radiation-sensitive sensors (CCD/CMOS cameras, atomic clocks, optical detectors) extending sensor life.
Context
Child of L2-RAD-SPOT within the Lunar Ark system
Principles
- ▸Local shields tailored to sensor sensitivity
- ▸Tungsten + HDPE composite typical
- ▸Field-of-view kept clear
- ▸Robotic-replaceable shields
- ▸Coordinated with L3-RAD-MON-DOSE dosimetry
Typical implementations
- ▸JWST instrument shielding heritage
- ▸Mars rover camera shielding
- ▸Atomic clock shielding studies (DSAC)
Lunar considerations
- ▸Atomic clock benefits from local shielding (slows aging)
- ▸Optical sensor windows preserved by minimal local mass
- ▸Modular design enables targeted replacement
Specifications
Functional
| primary function | Targeted local shielding around radiation-sensitive sensors (CCD/CMOS cameras, atomic clocks, optical detectors) extending sensor life. |
| shield count | 30 |
| thickness mm typical | 10 |
Physical
| mass kg | 100 |
| materials | Tungsten alloy, HDPE, Stainless attachment |
| vacuum compatibility | True |
Operational
| power consumption w | 0 |
| thermal range c | -40, 70 |
| lifetime years | 50 |
| mtbf hours | 1000000 |
Interfaces
Provides
- Shielded clock environment
- Shielded sensor electronics
Requires
- Mounting brackets
Cite this entry
Lunar Ark Codex. "Sensor Local Shielding" (L3-RAD-SPOT-SENS). Retrieved 10 September 2026, from https://lunarark.com/entry/L3-RAD-SPOT-SENS
Licensed CC-BY-SA 4.0. You may reuse and adapt this entry with attribution, under the same licence.