Ludlum Model 243

  Gamma Radiation Sample Counter Head

PART NUMBER: 47-1621

APPLICATION: gamma radiation assay, wipe test analysis
RADIATION DETECTOR: 1.8 x 2 in. (4.5 x 5.1 cm) (Dia x L) integral NaI(Tl) well scintillator
WELL: 0.7 x 1.6 in. (1.7 cm x 3.9 cm) (Dia x L)

SHIELDING: 0.5 in. lead
EFFICIENCY (4π): ¹²⁹I - 65%, ^99mTc - 90%, ¹³⁷Cs - 33%, ⁶⁰Co - 43%
SENSITIVITY: will detect 0.005 microCi gamma or 200 dpm removable contamination for ^99mTc, ¹³¹I, ²⁰¹T, ¹¹¹In, ¹²⁵I, ¹³⁷Cs and ⁶⁷Ga

BACKGROUND: ≤ 1000 cpm
COMPATIBLE INSTRUMENTS: Ludlum Models 2000, 2200, 2221
PHOTOMULTIPLIER TUBE: 2 in. (5.1 cm) diameter
OPERATING VOLTAGE: 500-1200 volts
CONNECTOR: series “C” (others available)
CONSTRUCTION: 0.5 in (1.3 cm) thick painted lead wall and removable cap
SIZE: 11 x 8 x 8 in. (27.9 x 20.3 x 20.3 cm) (H x W x L)
WEIGHT: 30 lb (13.6 kg)
SHIPPING WEIGHT: 46 lb (20.9kg)

CE CERTIFIED: yes

Data Sheet

Product Manual

CE Certificate