FLOOR MONITORS ALPHA plus BETA-GAMMA

Model # ABFM-5 Pancake Array GM 

Model # ABFM-6 Scintillator

Model # ABFM-7 Gas Flow

FEATURES:

* SEPARATES ALPHA FROM BETA-GAMMA IN
  ABFM-6 AND ABFM-7

* LARGE FACE 144 square inches (925 cm$^{2}$)
  on ABFM6 and ABFM7

* SCINTILLATION, GAS FLOW, or GM DETECTOR

* FAST AND SENSITIVE

* ANALOG AND DIGITAL READOUT

* OUTPUT FOR RECORDER

* RUGGED

* BUILT-IN SPEAKER

* CAN BE DECONTAMINATED

GENERAL DESCRIPTION: Alpha plus Beta Gamma Floor 
Monitors, Models ABFM-5, 6, & 7 utilize 
alpha-beta-gamma sensitive detectors coupled to 
appropriate electronics. An electronic sorter accepts 
and displays alpha counts only or alphas plus 
beta-gamma, or beta-gamma only. Windows are protected 
by a frame and grid which may be easily removed for 
decontamination purposes. The very large face detectors 
achieve, as far as we know, the fastest most sensitive 
floor monitoring system currently available.
 <Graphic file:abfm-7p-a.ps>

 
<Graphic file:abfm-7p-b.ps>

 
Figure 1: ABFM-Series

SPECIFICATIONS: Three additions to Technical Associates 
Floor Monitor Group.

MODEL#

ABFM-5: 12 large window thin form GM detectors, 29 sq. 
inches coverage in 24 inch swath. Window 1.5-2 mg/cm$^{2}$. 
Sees alpha plus all common betas except H-3. Adjustable 
height above floor. The ABFM-5 sees all alpha beta and 
gamma together. It does not sort.

ABFM-6: 4 PM tubes collect information from 144 sq. 
inches of plastic phosphor protected by thin 
light-tight easily replaceable window plus grille. 
Window is less than 1 mg/cm$^{2}$. Sees alphas plus all 
common betas except H-3. Switch selectable: alpha only 
or beta-gamma only or all. Digital and analog readout. 
Adjustable height above floor. Output for recorder. 

ABFM-7: 144 sq. inches thin window gas flow dual 
detector. Window is less than 1 mg/cm$^{2}$. Sees alphas and 
all common betas except H-3. Also sees X-rays (eg H$^{3}$ 
bremstrahlung) and gammas down to 5 KeV but with less 
efficiency. Switch selectable for alpha or beta-gamma 
or all. Also has pulse height analyzer. Analog plus 
digital response. Adjustable height above floor. Output 
for recorder. Includes gas supply (P-10).

T$_{\textrm{A}}$                                   TECHNICAL ASSOCIATES                                   
------------------------------------------------------------------------------------------
  7051 ETON AVENUE * CANOGA PARK, CA 91303 TELEPHONE (818) 883-7043 * FAX(818) 883-6103   


$Revision: 1.3 $