Ludlum Model 2929 with Model 43-10-1 Digital Dual Channel Scaler - Refurbished
is back-ordered. We will ship it separately in 10 to 15 days.
This instrument combines Ludlum's Model 2929 Dual Channel Scaler with its Model 43-10-1 Sample Counting Head to create an alpha/beta sample counter. The Model 2929 is a dual-channel scaler incorporating a pulse height analyzer that provides alpha beta separation and displays the counts for each on dedicated six-digit LED readouts.
The Model 43-10-1 sample counting head is a scintillator/zinc sulfide phoswitch with a sample tray accommodating up to a 5.1 cm (2 in.) diameter filter or planchet. The system comes complete with interconnecting cable and with the detector/sample tray joined to the scaler instrument to facilitate portability.Specifications Model 2929
INDICATED USE: scaler for alpha beta sample countingDETECTOR COMPATIBILITY: phoswich or proportional type detectorsHIGH VOLTAGE: adjustable from 200-2500 voltsTHRESHOLDS:beta: 4 mValpha: 175 mVBETA WINDOW: 50 mVSCALERS: 2 ea. 6-digit LED displays with a range of 0-999999 countsSCALER LINEARITY: reading within 2% of true valueTIMER: thumb wheel adjustment from 0-99 minutes with selectable multipliers of x0.1, x1, x10, or EXT for manual timingDATA-OUTPUT: two 15-pin connectors allowing for recorder and printers (one for alpha, one for beta)AUDIO: built-in unimorph type speakers with volume controls to provide a dual tone (1 per channel) click-per-event audioAMP OUT: “BNC” connector provides amplified detector pulseMETER DIAL: 0-2.5 kVMETER: 6.4 cm (2.5 in.) arc, 1 mA movement analog typePOWER: 95-250 Vac, 50-60 Hz single phaseSIZE: 24.4 x 37.1 x 25.1 cm (9.6 x 14.6 x 9.9 in.) (H x W x D)WEIGHT: 5.5 kg (12.1 lb) including detectorSpecifications 43-10-1
INDICATED USE: alpha/beta sample countingDETECTOR TYPE: scintillator: ZnS (Ag) adhered to plastic scintillation diskPHOTOMULTIPLIER TUBE: 5.1 cm (2 in.)OPERATING VOLTAGE: 500 to 1200 volts
WINDOW: 0.4 mg/cm²
EFFICIENCY (4π): 37% for 239Pu; 32% for 230Th; 39% for 238U; 5% for 14C; 27% for 99Tc; 29% for 137Cs; 26% for 99Sr/90Y
SAMPLE HOLDER: anodized aluminum tray with sample ring to allow for 2.5 cm (1 in.) or 5.1 cm (2 in.) diameter samples
- alpha: 3 cpm or less
- beta: 80 cpm
SAMPLE SIZE (maximum): 5.1 x 0.9 cm (2 x 0.4 in.) (Dia x L)
SIZE: 23.6 x 11.4 x 23.6 cm (9.3 x 4.5 x 9.3 in.) (H x W x L)
WEIGHT: 1.9 kg (4.1 lb)