ASC-950-DP-G

Automatic gasless alpha/beta counter with sample changer

High-speed automatic gross alpha/beta counter with a dual-phosphor scintillator that needs no counting gas. The changer takes 50 samples (100 optional) and reads barcodes; routines and QC charts are programmed in DUO Express and transferred via PIC Link. Radon compensation is available for air filters.

Detector type
Dual-phosphor scintillator (ZnS + plastic), Ø5.1 cm; gasless operation1
Weight
50 samples: 49.9 kg; 100 samples: 54.4 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

  • Gasless and lightweight
  • Easy window replacement
  • Optional lead shielding for lower background

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 typeDual-phosphor scintillator (ZnS + plastic), Ø5.1 cm; gasless operation1
WindowAluminised, 80 µg/cm²; easy to replace1
Sample geometryPlanchets Ø5.1 cm (2 in), 1/8, 1/4 or 5/16 in deep (3.2, 6.3 or 7.9 mm)1

Performance

Typical detection efficiencyTop / 1/8″ / 1/4″ / 5/16″ bottom – optimised for higher-energy betas: ²³⁹Pu 34/30/24/21%, ⁹⁰Sr/Y 45/40/35/34%, ⁹⁹Tc 24/21/19/18%; optimised for lower-energy betas: ²³⁹Pu 35/30/24/22%, ⁹⁰Sr/Y 47/41/36/35%, ⁹⁹Tc 26/24/20/19%1
Background rateWarranted alpha/beta (cpm): <0.2/<25 with lead and guard; <0.2/<30 with guard, no lead; <0.2/<55 with lead, no guard; <0.2/<65 with neither1

Cooling

Sample capacityAutomatic changer for 50 samples (100 optional) with barcode reader, sample range 1–9991

Software & data

SoftwareDUO Express included; routines and QC charts are programmed on a PC and transferred via PIC Link cable; Vista FC as an option1

Connectivity & interface

CommunicationData export via USB PIC Link and USB flash drive1
User interfaceBuilt-in colour touch screen1

Power & battery

Power supply110–240 V AC, 50–60 Hz1

Mechanical

Dimensions50 samples: 91.4 × 59.7 × 59.7 cm; 100 samples: 137.2 × 59.7 × 59.7 cm (H × W × D)1
Weight50 samples: 49.9 kg; 100 samples: 54.4 kg1

Ordering & accessories

OptionsLead ring ORT-ASC-950-SHLD (22.7 kg); 100-sample option ORT-ASC-950-OPT-04 (adds about 18 in to height and 10 lb); cart PIC-ACC-021

General

Count modesAlpha only; alpha/beta simultaneously; alpha then beta1

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 More Information; Instrument Specifications; Specifications; Instrument Specifications; Overview; Instrument Specifications … Checked 2026-10-16
MPC-900-DP
ORTEC

MPC-900-DP

Manual single-sample alpha/beta counter with gasless scintillation detector

Detector type
Dual-phosphor scintillator (ZnS + plastic), Ø5.1 cm; gasless operation
Weight
40 lb; guard +7 lb; shield +50 lb
15 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
WPC-1150-GFW-3/GFW-5
ORTEC

WPC-1150-GFW-3/GFW-5

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

Detector type
Pancake-style gas-flow proportional detector, Ø8.9 cm (GFW-3) or Ø12.7 cm (GFW-5)
Weight
816 kg
20 referenced values
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