Sample Counting Heads

Model	Type	Sample Size	Detector	Window	Voltage	Efficiency	Background	Part Number
`43-9`	`Alpha`	`2.5 cm (1.5 in.)`	`ZnS(Ag)`	`0.4 mg/cm²`	`500-1200`	`30%-²³⁰Th`	`≤ 3 cpm`	`47-1525`
`43-10`	`Alpha`	`5.1 cm (2 in.)`	`ZnS(Ag)`	`windowless`	`500-1200`	`37%-²³⁹Pu`	`≤ 3 cpm`	`47-1526`
`43-78`	`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`
`43-78-1`	`Beta`	`12.7 x 0.46 cm (5 x 0.18 in.)`	`plastic scintillator to a 0.6 cm (0.25 in.) light pipe`	`windowless`	`500-1200`	`40%-⁹⁰Sr/⁹⁰Y 12%-¹⁴C 35%-⁹⁹Tc`	`beta-gamma ≤ 500 cpm`	`47-2307`
`43-10-1`	`Alpha/Beta`	`2.5 cm (1.5 in.)`	`ZnS(Ag) adhered to plastic scintillator`	`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`
`43-78-2`	`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 per10 min count; Beta: ≤ 100 cpm`	`47-2620`
`120`	`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`
`44-110-2`	`Low Energy`	`2.5 or 5.1 cm`	`gas flow`		`≈ 1900`	`≈ 12.5%-¹⁴C 38.7%-⁶³Ni 48%-²³⁹Pu`	`15 cpm`	`47-3678`
`180-8`	`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`
`182`	`Radon Flask Counter`	`7.6 x 17.1 cm (3 x 6.75 in.) (Dia x L)`	`ZnS(Ag)`	`windowless`	`500-1500`	`≈ 40%-²³⁹Pu`	`≤ 3 cpm per 10 min count`	`47-1633`

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