NMC
NEW PRODUCTS
INDIANAPOLIS
with variable abscissa and ordinate ex pansions, and convenient switching from double-beam to single-beam op eration. The IIi-7 utilizes a replica grating in conjunction with a sodium chloride prism, providing more resolution than is possible with conventional doublebeam, double-prism spectrophotom eters. In addition, the IR-7 features a unique order-changing system which permits continuous scanning from 650 to 400O 1 (wave numbers) and pre serves linear wave number presenta tion. P-9
Nuclear Instruments AIR MONITORS
•S-Î
^ • P * '
Automatically record and warn of α, β and y radiation in airborne particles for periods up to one week, unattended. Fixed or moving filters. Standard and custom units or c o m plete systems. PROPORTIONAL COUNTING SYSTEMS
VITREOSIL FUSED QUARTZ
MEETS YOUR CRITICAL REQUIREMENTS
Portable Electrometer Model 600 electrometer, with 53 ranges, is a battery-operated instru ment which measures (1) voltage, 10 mv. to 10 volts, (2) current, ΙΟ 1 4 to 3 amperes, (3) resistance, 200 to 1013 ohms.
CHECK WHAT VITREOSIL OFFERS: Absolute Chemical Purity
For precision counting of α, β and y radia tion from prepared samples. Ideal for C14, Ca 45 , P32 and H 3 . New low power design re duces heat, assures longer life.
^/1
Extreme Heat Resistance
y I
Thermal Shock Resistance
-'
Chemical Inertness
y/\
Outstanding Electrical Properties
'
Full-Range Radiant Energy Transmission
COUNT RATEMETERS
VITREOSIL f u s e d q u a r t z p r o d ucts c a n b e s u p p l i e d in a n u n u s u a l l y l a r g e v a r i e t y of t y p e s a n d sizes. A l s o f a b r i c a t e d t o s p e c i f i c a t i o n t o meet s e m i - c o n ductor requirements.
Operate G M , scintillation and proportional c o u n t i n g d e t e c t o r s . E q u i p p e d t o drive recorders and alarms. Logarithmic or linear models for monitoring or laboratory use.
For u l t r a - v i o l e t a p p l i c a t i o n s , m e t a l l u r g i c a l investigations a n d processes, c h e m i c a l research a n d a n a l y s i s , p h o t o c h e m i s t r y , spec troscopy a n d physical, optical a n d e l e c t r i c a l research a n d p r o d u c t i o n o p e r a t i o n s . S e n d specifi cations f o r y o u r r e q u i r e m e n t s . Please use c o u p o n b e l o w .
TRANSPARENT VITREOSIL
PORTABLE SURVEY METERS
Features include selectable input im pedance from 1 to greater than 1014 ohms, and a 1-volt output. Accessory A'oltage divider probes extend range to 10,000 volts. Resistance is indicated on linear scale and drift is kept low by balanced circuitry. Available from Keithley Instruments, Inc. P-10
See o u r a d in Chemical
High precision, compact, portable Geiger and scintillation counters. Critical compo nents shock mounted and watertight. For precise laboratory measurement or rugged field use. SEND T O D A Y FOR FREE LITERATURE
Nuclear 4^& Measurements Corp.
2460 N. Arlington Ave. Phone: Liberty 6-2415
INDIANAPOLIS 18, INDIANA International Office: 13 E. 40th St., New York 16, N.Y. Circle Nos. 91 A-1, 91 A-2, 91 A-3, 91 A-4 on Readers' Service Card, page 101 A
Multichannel Scintillation Spectrometer
Engineering C a t a l o g
THERMAL FUSED
Baird-Atomic's new multichannel scintillation spectrometer is a stable, nonoverloading scintillation spectrom etry system. This is achieved by the inclusion of a stable high voltage supply and nonoverloading linear amplifier. The scintillation detector incorporates the B-A stacked cathode follower to provide the linearity and stability re quired in spectral analysis. Uses include high speed scintillation spectrometry, pulse height analysis of low intensity sources, spectral analyses
AMERICAN
QUARTZ
CO., INC.
18-20 Salem Street, Dover, N e w Jersey
Please send technical d a t a o n
Company Name & TitleStreet City
_Zone
State-
I . . . . . . . . . J Circle No. 91 A-5 on Readers' Service Card, page 101 A VOL.
3 0 , N O . 1 0 , OCTOBER 1 9 5 8
·
91
A
