WPC-1150-GFW-3/GFW-5

Automatic alpha/beta counter with a large detector for air filters

Automatic low-background counters with a 3.5 in or 5 in gas-flow proportional detector, aimed at health physics and environmental applications. They suit large-diameter air filters from high-volume air samplers and have a colour touch screen, cosmic guard detector and 10 cm of lead.

Detector type
Pancake-style gas-flow proportional detector, Ø8.9 cm (GFW-3) or Ø12.7 cm (GFW-5)1
Weight
816 kg1
Datasheet

Specifications checked against the manufacturer’s documents on 2026-10-17

Manufacturer’s product page (opens in a new tab)

Overview

Key features

  • Custom planchet sizes available
  • 50-sample changer with barcode reader
  • Counting-gas loss detection

Specifications

The number after each value refers to the source listed below. Values are as published by the manufacturer; the exact configuration is always confirmed in our quotation.

Detector

Detector typePancake-style gas-flow proportional detector, Ø8.9 cm (GFW-3) or Ø12.7 cm (GFW-5)1
WindowAluminised, 80 µg/cm²1
Guard detector1 large gas-flow proportional detector1
Sample geometryCustom planchet sizes; planchets up to 5/16 in deep; active detector area 3.5 in (8.9 cm) or 5 in (12.7 cm)1

Performance

Typical detection efficiency²³⁰Th 27%, ⁹⁰Sr/⁹⁰Y 63%, ⁹⁹Tc 41%, ⁶³Ni 20%1
Background rateTypical, 3.5 in: alpha 0.3 cpm, beta 1.5 cpm; 5 in: alpha 0.4 cpm (0.5 warranted), beta 4 cpm (5 warranted)1

Cooling

Sample capacityAutomatic 50-sample changer with barcode reader, sample range 1–9991

Software & data

SoftwareVista FC (health physics) and Vista 2000 (radiochemistry) as options1

Connectivity & interface

CommunicationData export via USB flash drive and RS-4851
User interfaceBuilt-in colour touch screen1

Power & battery

Power supply117 V AC, <0.2 A, 50/60 Hz or 230 V AC, <1.0 A, 50/60 Hz1

Mechanical

Dimensions62.5 × 91.4 cm (W × D)1
Weight816 kg1

Environment & ratings

Operating temperature10–40 °C1
Humidity20–90%, non-condensing1

General

Counting gasP-10, 60 cc/min at 10 psi; Gas-PRO fail-safe monitoring senses breaches in gas flow1
Lead shielding10 cm (4 in) lead1
Count modesAlpha only; beta only; alpha/beta simultaneously1
Cross talkAlpha to beta <0.1%; beta to alpha <0.1%1
UseHealth physics and environmental work; large-diameter air filters from high-volume air samplers1

The data comes from the manufacturer’s published documents. Manufacturers may change specifications; the current configuration and performance are confirmed in the quotation.

Documents

Sources

The number after each value refers to the source listed below. Values are as published by the manufacturer; the exact configuration is always confirmed in our quotation.

  1. 1
    Publisher: ORTEC (AMETEK)Product page Ordering Information; Specifications; Instrument Specifications; Performance … Checked 2026-10-16
WPC-1050-GFW-2
ORTEC

WPC-1050-GFW-2

Automatic low-background alpha/beta counter, 50 or 100 samples

Detector type
Pancake-style gas-flow proportional detector, Ø5.7 cm
Weight
50 samples: 195 kg; 100 samples: 200 kg
17 referenced values
Vista FC
ORTEC

Vista FC

Alpha/beta counter control software for health physics

Primary function
Control software for health-physics sample counting with the WPC-9550 and other compatible systems
Sample parameters
Input of e.g. air volume and liquid volume
Access control
Password-protected instrument setup
5 referenced values
MPC-9604
ORTEC

MPC-9604

Four-detector alpha/beta counter for high sample throughput

Detector type
Four pancake-style gas-flow proportional detectors, Ø5.7 cm, with cosmic guard detector
Weight
544 kg (shipping 635 kg); the support surface must bear 1,200 lb per unit
21 referenced values
ASC-950-DP-G
ORTEC

ASC-950-DP-G

Automatic gasless alpha/beta counter with sample changer

Detector type
Dual-phosphor scintillator (ZnS + plastic), Ø5.1 cm; gasless operation
Weight
50 samples: 49.9 kg; 100 samples: 54.4 kg
14 referenced values
Contact us

Questions about this product?

We help you choose the right configuration, detector and accessories for your measurement task.