Bild: ORTEC
NaI(Tl) scintillation detectors, 1 × 1 to 4 × 4 in
NaI(Tl) scintillation detectors with photomultiplier tubes in four sizes, from 1 × 1 to 4 × 4 in. The detectors are assembled and supplied to ORTEC by companies that specialise in NaI(Tl) detectors, and specifications may vary slightly depending on the original manufacturer. Special configurations such as well detectors and thyroid counters are available on special order.
Download product sheet (PDF)All values with references – for tender documents
Specifications checked against the manufacturer’s documents on 2026-10-17
The number after each value refers to the source listed below. Values are as published by the manufacturer; the exact configuration is always confirmed in our quotation.
| Detector type | NaI(Tl) scintillator with photomultiplier tube1 |
|---|---|
| Crystal dimensions | 905-1: 1 × 1 in (2 in PMT); 905-3: 2 × 2 in (2 in PMT); 905-4: 3 × 3 in (3 in PMT); 905-16: 4 × 4 in (3 in PMT)1 |
| Typical energy resolution, Cs-137 | About 7% for a 3 in diameter by 3 in long crystal, slightly worse for larger sizes (manufacturer’s general figure for NaI(Tl))1 |
| Special configurations | Wells, thin-window X-ray, thyroid counters and large slabs on special order1 |
| Accessories | Lead Shield G-5, table-top shield with cable-way and clamp for the detector/PMT; not compatible with the 905-161 |
The data comes from the manufacturer’s published documents. Manufacturers may change specifications; the current configuration and performance are confirmed in the quotation.
The number after each value refers to the source listed below. Values are as published by the manufacturer; the exact configuration is always confirmed in our quotation.
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We help you choose the right configuration, detector and accessories for your measurement task.
ORTEC (AMETEK)