Title: Room air monitor for radioactive aerosols

Abstract

A housing assembly for use with a room air monitor for simultaneous collection and counting of suspended particles includes a casing containing a combination detector-preamplifier system at one end, a filter system at the other end, and an air flow system consisting of an air inlet formed in the casing between the detector-preamplifier system and the filter system and an air passageway extending from the air inlet through the casing and out the end opposite the detector-preamplifier combination. The filter system collects suspended particles transported directly through the housing by means of the air flow system, and these particles are detected and examined for radioactivity by the detector-preamplifier combination. 2 figs.

Inventors:

Balmer, D K; Tyree, W H

Issue Date:

1987-03-23

Research Org.:

Rockwell International Corp., Golden, CO (United States). Rocky Flats Plant

OSTI Identifier:

6806896

Patent Number(s):

6028982

Assignee:

TIC; EDB-88-179409

Patent Classifications (CPCs):

H - ELECTRICITY H04 - ELECTRIC COMMUNICATION TECHNIQUE H04N - PICTORIAL COMMUNICATION, e.g. TELEVISION

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H - ELECTRICITY H04 - ELECTRIC COMMUNICATION TECHNIQUE H04N - PICTORIAL COMMUNICATION, e.g. TELEVISION

H04N1/32662 - {remotely, e.g. to the transmitter from the receiver}
H04N2201/0015 - Control of image communication with the connected apparatus, e.g. signalling capability
H04N1/32128 - {attached to the image data, e.g. file header, transmitted message header, information on the same page or in the same computer file as the image
H04N1/33315 - {reading or reproducing mode only, e.g. sheet size, resolution}
H04N2201/3209 - of a telephone number
H04N1/00209 - {Transmitting or receiving image data, e.g. facsimile data, via a computer, e.g. using e-mail, a computer network, the internet, I-fax}
H04N2201/33321 - Image or page size, e.g. A3, A4
H04N2201/0086 - Image transceiver
H04N1/32609 - {Fault detection or counter-measures, e.g. original mis-positioned, shortage of paper}
H04N2201/0017 - Notifying a communication result
H04N2201/0093 - Facsimile machine
H04N1/32641 - {of transmission or transmitted data, e.g. interruption or wrong number of pages}
H04N1/3935 - {with modification of image resolution, i.e. determining the values of picture elements at new relative positions}
H04N1/33369 - {Storage of mode or retrieval of prestored mode}
H04N2201/0067 - Converting to still picture data
H04N2201/0068 - Converting from still picture data

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DOE Contract Number:  

AC04-76DP03533

Resource Type:

Patent

Resource Relation:

Other Information: Portions of this document are illegible in microfiche products

Country of Publication:

United States

Language:

English

Subject:

54 ENVIRONMENTAL SCIENCES; AIR POLLUTION MONITORS; DESIGN; PARTICULATES; OCCUPATIONAL EXPOSURE; AIR FILTERS; ALPHA PARTICLES; INDOOR AIR POLLUTION; INVENTIONS; RADIOACTIVE AEROSOLS; AEROSOLS; AIR POLLUTION; CHARGED PARTICLES; COLLOIDS; DISPERSIONS; EQUIPMENT; FILTERS; MEASURING INSTRUMENTS; MONITORS; PARTICLES; POLLUTION; POLLUTION CONTROL EQUIPMENT; SOLS; 500200* - Environment, Atmospheric- Chemicals Monitoring & Transport- (-1989)