ASC-950-DP

Features

Automatic Sample Changer
2 in. (5.1 cm) Standard Planchet Diameter
Standard 50 Sample Capacity (Optional 100 Sample)
Gross Alpha/Beta Counter
Dual Phosphor Scintillator Detector
Gasless
Lightweight
Touch Screen Interface
Easy Window Replacement
Radon Compensation For Air Filters
Available Cosmic Guard Detector Option (More Information)
Optional Lead Shielding to Reduce Background Levels

Overview

The ASC-950-DP is a gasless high-speed counter designed primarily for the health physics user counting smears and air filters. The ASC-950-DP is an updated design which incorporates the same dependable mechanical platform with improvements which include:

A built-in color touch screen interface
Ability to export data directly to a computer using the PIC Link option
Ability to program routines and QC charts on a PC running the included DUO Express software, then transfer the routines to the instrument using a direct-connect PIC Link cable

Part Number: 105-950-DP-G

Specifications

All specifications are subject to change without notice.

Physical

Sample Detector	2.0 in. (5.1 cm) diameter ZnS + plastic dual phosphor
Window	Aluminized, 80 µg/cm²
Guard Detector	Optional (see Options & Accessories tab)
Shielding	Optional lead ring (see Options & Accessories tab)
Sample Size	5.1 cm (2 in.) diameter planchets, 1/8, 1/4, 5/16 in. (3.2, 6.3, 7.9 mm) deep
Sample Transport	50 sample (100 optional) automatic changer with barcode reader with sample range 1 - 999
Count Modes	Alpha only, Alpha/Beta simultaneously, Alpha then Beta
Interface	Touch screen
Data Export	USB PIC link, USB flash drive
Power	110 - 240 Vac, 50 - 60 Hz input
Environment
Size (H x W x D)	50 Samples: 36 x 23.5 x 23.5 in. (91.4 x 59.7 x 59.7 cm) 100 Samples: 54 x 23.5 x 23.5 in. (137.2 x 59.7 x 59.7 cm)
Weight	50 Samples: 110 lb (49.9 kg) 100 Samples: 120 lb (54.4 kg)

Performance

Typical Background - Optimized for Lower Energy Betas

Condition	Alpha (cpm)	Beta (cpm)
With Guard & Lead	0.05	13
With Guard, No Lead	0.05	23
No Guard, With Lead	0.05	41
No Guard, No Lead	0.06	55

Typical Background - Optimized for Higher Energy Betas

Condition	Alpha (cpm)	Beta (cpm)
With Guard & Lead	0.05	12
With Guard, No Lead	0.03	15
No Guard, With Lead	0.08	35
No Guard, No Lead	0.06	40

Typical Efficiency - Optimized for Lower Energy Betas

Source	Top	1/8 in. (3.2 mm) Bottom	1/4 in. (6.3 mm) Bottom	5/16 in. (7.9 mm) Bottom
²³⁹Pu	35%	30%	24%	22%
⁹⁰Sr/⁹⁰Y	47%	41%	36%	35%
⁹⁹Tc	26%	24%	20%	19%

Typical Efficiency - Optimized for Higher Energy Betas

Source	Top	1/8 in. (3.2 mm) Bottom	1/4 in. (6.3 mm) Bottom	5/16 in. (7.9 mm) Bottom
²³⁹Pu	34%	30%	24%	21%
⁹⁰Sr/⁹⁰Y	45%	40%	35%	34%
⁹⁹Tc	24%	21%	19%	18%

Options & Accessories

Options

Service Contract
Installation
Computer System
Extended Warranty
Cosmic Guard Detector

Accessories

Description	Part Number
Cosmic Guard Detector, 5 lb (2.3 kg)	110-1073
Lead Ring, 50 lb (22.7 kg)	120-0010-ASC
Cart	120-0011
Standard Carrier Set (1-50 + QC + Routine)	120-0033-ASC
Carrier Set of 50 (Any Sequence)	120-0034-ASC
100 Sample Option	120-0036-ASC
50 Sample Stack, Stand, & Carrier Set	120-0075-ASC-50
100 Sample Stack, Stand, & Carrier Set	120-0075-ASC-100
1/8 in. Carrier Insert, Set of 50	140-0305-01
1/4 in. Carrier Insert, Set of 50	140-0305-02
5/16 in. Carrier Insert, Set of 50	140-0305-03
Planchet, 2 in. x 1/8 in., set of 100	700-0007
Planchet, 2 in. x 1/4 in., set of 100	700-0008
Planchet, 2 in. x 5/16 in., set of 100	700-0009

Spare Parts

Description	Part Number
Low Voltage Power Supply, 12 V	110-0013
Low Voltage Power Supply, 24 V	110-0017
2.0 in. DP Scintillator Detector	110-1015
CPU	110-1044-1
High Voltage Power Supply	110-1047-1
Powered Patton Box RS485 Converter	110-1069
DP Dual Amp	110-1071
Cosmic Guard Detector	110-1073
PIC Link Cable	11M-0014
2.25 in. Window	120-0008
2 in. Changer Crossfeed Motor Assembly	120-0070
Barcode Labels Routines, QC's, Skips, and 1-50	240-0025
Barcode Labels 51-100	240-0026
RS232 Cable, 15 ft.	6XXX-0008