Sample Counting Heads

 

Model
Radiation
Type
Sample Size
(Dia x Depth)
Detector Type
Window
Operating Voltage
Efficiency
(4 pi)
Background
Part Number
Alpha
2.5 cm(1.5 in.)
ZnS(Ag)
0.4 mg/cm2
500-1200
30%-230Th
≤3 cpm
47-1525
Alpha
5.1 cm
(2 in.)
ZnS(Ag)
windowless
500-1200
37%-239Pu
≤3 cpm
47-1526
Alpha
12.7 x 0.46 cm
(5 x 0.18 in.)
ZnS(Ag) adhered to a 0.6 cm
(0.25 in.) light pipe
windowless
500-1200
37%-230Th
37%-239Pu
≤3 cpm
47-2180
Beta
12.7 x 0.46 cm
(5 x 0.18 in.)
plastic scintillator on 0.6 cm (0.25 in.) light pipe
windowless
500-1200
40%-90Sr/90Y
12%-14C
35%-99Tc
beta/gamma
≤500 cpm
47-2307
Alpha/Beta
2.5 cm (1 in.) or 5.1 cm (2 in.)
ZnS(Ag) adhered to plastic
scintillator disk
0.4 mg/cm2
500-1200
37%-239Pu
32%-230Th
39%-238U
5%-14C
27%-99Tc
29%-137Cs
26%-90Sr/90Y
Alpha ≤3 cpm
Beta ≤80 cpm
47-1305
Alpha/Beta
7.6 x 0.46 cm
(3.0 x 0.18 in.)
ZnS(Ag) adhered to plastic
scintillator
0.4 mg/cm2
800-1500
37%-239Pu
37%-90Sr/90Y
Alpha ≤ 7 cpm
per 10 min count;
Beta ≤ 100 cpm
47-2620
Alpha/Beta
5.1 cm
(2 in.)
gas flow
0.4 mg/cm2
alpha: 900-1300, beta: 1300-1700
10%-14C
42%-90Sr/90Y
35%-230Th
less than 1% - gamma
Alpha ≤ 3 cpm
Beta ≤100 cpm
47-1625
Low Energy Alpha/Beta
2.5 or
5.1 cm
gas flow
 
typically 1700 to 1900
12%->63Ni
34%-239Pu
~ 300 cpm in beta mode,
<3 cpm in alpha mode
47-3929
Alpha/Beta/Gamma
0.32 to 5.1 cm
selectable spacing
end window GM with 1.5 in.
lead shielding
1.7 mg/cm2
900
2%-14C
10%-90Sr/90Y
7%-239Pu
14 cpm
47-1549
Radon Flask Counter
7.6 x 17.1 cm
(3 x 6.75 in.)
(Dia x L)
ZnS(Ag)
windowless
500-1500
approx. 40%-239Pu
≤3 cpm per 10 min count
47-1633