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Model 243
The Model 243, along with a pulse height analyzer system, is used for gamma ray assay and wipe test analysis. The Model 243 is shielded with 1.3 cm (0.5 in.) of lead to improve sensitivity by reducing background and other external radiation. The detector is an integrated 4.5 x 5.1 cm (1.8 x 2 in.) (Dia x thickness) NaI (Tl) crystal scintillator optically coupled to a 5.1 cm (2 in.) diameter, 10-stage photomultiplier tube.
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Related Products
Model 43-9
Alpha Sample Counter Head
- Detector Type: Alpha ZnS(Ag) Scintillator
- Max. Sample Size: 2.5 x 0.15 cm (1 x 0.06 in.) [D x L]
- Efficiency: 230Th : 30%
Model 43-10
Alpha Sample Counter Head
- Detector Type: Alpha ZnS(Ag) Scintillator
- Max. Sample Size: 5.1 x 0.9 cm (2 x 0.4 in.) [D x L]
- Efficiency: 230Th : 37%
Model 43-78
Alpha Sample Counter Head
- Detector Type: Alpha ZnS(Ag) Scintillator
- Max. Sample Size: 12.7 x 0.46 cm (5 x 0.18 in.) [D x L]
- Efficiency: 230Th : 37% 239Pu : 37%
Model 43-10-1
Alpha Sample Counter Head
- Alpha-Beta ZnS(Ag) + Plastic Scintillator
- Max. Sample Size: 5.1 x 0.9 cm (2 x 0.4 in.) [D x L]
- Efficiency:
- 239Pu : 37%
- 230Th : 32%
- 238U : 39%
- 14C : 5%
- 99Tc : 27%
- 137Cs : 29%
- 99Sr/90Y : 26%
Model 43-10-10
Alpha-Beta Sample Counter Head for iCam/Harwell Filters
- Detector Type: Alpha ZnS(Ag) Scintillator
- Max. Sample Size: 5.1 x 0.9 cm (2 x 0.4 in.) [D x L]
- Efficiency:
- 239Pu : 37%
- 230Th : 32%
- 238U : 39%
- 14C : 5%
- 99Tc : 27%
- 137Cs : 29%
- 99Sr/90Y : 26%
Model 43-78-2
Alpha-Beta Sample Counter Head for iCam/Harwell Filters
- Detector Type: Alpha-Beta ZnS(Ag) + Plastic Scintillator
- Max. Sample Size: 5.1 x 1.0 cm (2 x 0.4 in.) [D x L] Adapted for iCam Filters
- Efficiency: 239Pu : 40%
Model 44-110-4
Windowless Sample Counter Detector
- Detector Type: Alpha-Beta Windowless Gas Flow Proportional
- Max. Sample Size: 5.1 x 0.9 cm (2.0 x 0.4 in.) [D x L]
- Efficiency:
- 3H : 3%
- 14C : 21%
- 63Ni : 36%
- 239Pu : 42%
Model 120
Alpha-Beta-Gamma Sample Counter
- Detector Type: Alpha-Beta ZnS(Ag) + Plastic Scintillator
- Max. Sample Size: 5.1 x 1.0 cm (2 x 0.4 in.) [D x L] Adapted for iCam Filters
- Efficiency: 239Pu : 40%
Model 180-8
Shielded Sample Holder with Detector
- Detector Type: Alpha-Beta-Gamma End Window GM
- Max. Sample Size: 5.1 cm (2 in.) dia.
- Efficiency:
- 14C : 2%
- 90Sr/90Y : 10%
- 239Pu : 7%
Model 43-78-1
Beta Sample Counter Head
- Detector Type: Beta Plastic Scintillator
- Max. Sample Size: 12.7 x 0.46 cm (5 x 0.18 in.) [D x L]
- Efficiency:
- 90Sr/90Y : 40%
- 14C : 12%
- 99Tc : 35%
Model 203
Shielded Well Gamma Sample Counter Head
- Detector Type: Gamma NaI(Tl) Well Scintillator 5.1 x 4.6 cm (2 x 1.8 in.) [D x L]
- Max. Sample Size: 1.7 x 3.9 cm (0.66 x 1.6 in.) [D x L]
- Efficiency:
- 129I : 65%
- 137Cs : 33%
- 60C0 : 43%
Model 243
Shielded Well Gamma Sample Counter Head
- Detector Type: Gamma NaI(Tl) Integral Line Well Scintillator 4.6 x 5.1 cm (1.8 x 2 in.) [D x L]
- Active Window Area: 1.7 x 3.9 cm (0.66 x 1.6 in.) [D x L]
- Efficiency:
- 125I : 80%
- 99mTc : 90%
- 137C : 33%
- 60Co : 43%
Model 182
Radon Flask Sample Holder Head
- Detector Type: For Radon Flask Sample Counting
- Active Window Area: 6.1 x 12.7 cm (2.4 x 5 in.) [D x L]
