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Description:
The integral units comprise of
factory designed and encapsulated unit of a scintillator and a
selected photomultiplier optimized for performance in spectroscopic
applications. Many combinations are possible with choice of types and
sizes of the scintillating phosphors and photomultipliers available. The
standards in the industry are the NaI (TI) units with a bi-alkali PMT
chosen for energy resolutions in the 6.0% to 7.5% FWHM range for the 662
kev gamma excitation: |
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| Type NAI -
2PX2/2
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NaI (TI)
2" dia. x 2" thick coupled to a 2" PMT. |
Type NAI -
3PX2/3 |
NaI (TI)
3" dia. x 2" thick coupled to a 3" PMT. |
| Type NAI -
3PX3/3 |
NaI (TI)
3" dia. x 3" thick coupled to a 3" PMT. |
| Features
Depending upon the user applications, variants of
these standard types are supplied as:
- Low background units
- Well types - with axial and transverse
- Thin entrance window low energy X-Ray
detectors
- Survey probes
with high-meg chain internal voltage dividers
- Phoswich detectors
- Square and Rectangular cross-section bars
- Ruggedized
versions for field and industrial applications
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