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Extended Life PlasticTM
Plastic scintillator is subject to aging which is evidenced by a pulse height loss of about 2% per year. Extended Life Plastic™ detector enables radiation portal monitor (RPM) systems to operate with high uptime, low probability of escapes and affordable cost.
While maintaining constant low energy performance, Saint-Gobain has incorporated a revolutionary barrier film along with the standard wrapping to provide an effective seal against vapor penetration. Prolonged testing in hot, humid conditions followed by a cold temperature soak shows that detectors packaged with the barrier film do not suffer the degradation seen in detectors with only standard wrapping.
Features
- Sensitivity to gamma rays is unaffected
- Little to no dimensional change
- Proven reliability with hygroscopic scintillators
Specifications
- PVT Scintillator wrapped in reflector
- Scintillator sealed against moisture intrusion with Saint-Gobain wrap
- Outer surface wrapped in light sealing black vinyl
- Photomultiplier tube (PMT) hermetically sealed to the scintillator
- Potential solutions include:
- Field replaceable PMT assemblies that complete the hermetic package
- Temporary hermetic seals that are removed by the end-user to install proprietary readout packages