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18 Cards in this Set

  • Front
  • Back

List factors that affect an RCTS selection of a portable contamination monitoring instrument

1. Type of radiation measured


2. Energy of radiation measured


3. Intensity of radiation


4. Interference from a mixed radiation field


5. Background count rate


6. Background radiation discrimination


7. Environmental factors


8. Procedural requirements

Describe detector type, detector shielding & window, types of radiation detected/ measured, efficiency, specific limitations/characteristics of Ludlum model 44-9

detector type: GM


shielding & window: 1.4-2mg/cm2


types of radiation: alpha, beta, gamma


efficiency: beta 10% near 27%


specific limitations/characteristics: only implicate alpha

Describe detector type, detector shielding & window, types of radiation detected/ measured, efficiency, specific limitations/characteristics of Ludlum model 43-92

detector type: scintillation


shielding & window:0.8mg/cm2


Types of radiation: alpha


efficiency: pu-239 24%


specific limitations/characteristics: 5-122 degrees f

Describe detector type, detector shielding & window, types of radiation detected/ measured, efficiency, specific limitations/characteristics for dual probe DP6B

detector type: scintillation phosphor


shielding & window: 3.5 um


types of radiation: alpha beta


efficiency: 18-20%


specific limitations/characteristics: fragil

Describe types of detectors available for use, operation adjustable controls, specific limitation/ characteristics for Ludlum model 2a survey meter

types of detectors available for use: cs-137 23-32%, co-60 15-17%, sr-90 30-35%, tc-99 11-14%


operation adjustable controls: range multiplier selection switch, audio on/off toggle switch, fast-slow toggle switch


specific limitation/ characteristics: 3 linear ranges 9-50000 cpm, meter scale presentation 0-500 cpm, alarm indication, alarm ranges, response 4 or 22 sec at 90%, linearity + or - 5%, calibration stability less than 15% variance, 32-150 degrees f

Describe types of detectors available for use, operation adjustable controls, specific limitation/ characteristics for Ludlum model 3 survey meter

types of detectors available for use: any gm probe offered by Ludlum, ludlum model 43-92 & 44-9


operation adjustable controls: instrument selector switch, audio on/off, fast-slow meter response, meter reset


specific limitation/ characteristics: overload indicator to know when a light leak is present, toggle switch for fast 4 sec and slow 22 sec from 10-90%, zero the instrument, 2000 hrs, 2 d cell batteries, end of life warning

Describe types of detectors available for use, operation adjustable controls, specific limitation/ characteristics for Ludlum model 177 series

types of detectors available for use: any gm probe and most scintillation detectors, ludlum 44-9 & 43-92, emberline model hp 210 & hp 260


operation adjustable controls: range multiplier selector, volume control adjustment, fast slow toggle, reset button, alarm


specific limitation/ characteristics: operates on ac power, 50 hrs battery life, -4-122 degres f

Describe types of detectors available for use, operation adjustable controls, specific limitation/ characteristics for electra

types of detectors available for use:


operation adjustable controls: locked


specific limitation/ characteristics:

Describe detectors type, shielding and housing, types of radiation, procedures for source checks, procedures for sample counts for E-600 digital survey meter

detectors type: gm& scintillation probe


shielding and housing: aluminum housing, protective screen covers all detectors, screen has 83% opening


types of radiation: beta & alpha


procedures for source checks: weekly, following maintenance, or repair


procedures for sample counts

Personnel contamination monitor PCM 1 B Describe detectors type, shielding and housing, types of radiation, procedures for source checks, procedures for sample counts

detectors type: multidetector


shielding and housing:


types of radiation: beta and alpha


procedures for source checks: weekly or following maintenance and repair


procedures for sample counts:

Personnel contamination monitor PCM 2 Describe detectors type, shielding and housing, types of radiation, procedures for source checks, procedures for sample counts

detectors type: gas flow proportional


Shielding & housing: aluminum


types of radiation: alpha & beta


procedures for source check: weekly or following maintenance and repair

Eberline pm 6 Describe detectors type, shielding and housing, types of radiation, procedures for source checks, procedures for sample counts

detectors type: gas flow proportionall


6A:11 Gas flow counters to detect beta gamma contamination source checked daily using beta gamma source


6A-2: 15 gas flow counters to detect alpha or beta-gamma contamination source checked daily

Waste cutie monitor Describe detectors type, shielding and housing, types of radiation, energy response for measured radiation, specific limitations and characteristics

detectors type: scintillation shielding and housing: 1.5 in lead walls


types of radiation: gamma

Describe detectors type, shielding and housing, types of radiation, energy response for measured radiation for eberline bmw-10 bag waste monitor

detectors type: scintillation shielding and housing: 20 cubic foot lead chamber


types of radiation: gamma

Identify the factors that affect the operators selection of portable air samples

1. Type of radiation emitted by airborne contaminated in question


2. Physical state of airborne contaminant


3. Type and duration of job being performed

Identify the physical and operating characteristics and limitations of staples high volume air sample

Identify the physical: 110v fan motor with on off switch, 4in filter holder assembly intake screen, MSA charcoal adaptable, portable 10 lbs


operating characteristics: centrifugal force is the method used to induce air movement and produce kinetic energy, self cooling, variable orifice flow meter calibrated 0-70 cfm


limitations: not long term, may create airborne area due to exhaust, potential crawler, don’t use explosives in atmospheres

Identify the physical and operating characteristics and limitations radeco h809 grab sampler

physical: equipped with 2 stage turbine blower and one horsepower self cooling universal motor, sample head 2in or 47mm particulate iodine filters, 3 position switch, 10lbs


operating: equipped with rotameter air flow indicator, rotameters are conventionally read at the highest point of maximum diameter, flow rate adjustable 1-8 cfm, 110-125 vac


limitations: can’t be use in explosive atmosphere, not long term continuous sampling

Identify the physical and operating characteristics and limitations of motor air pumps

Operational: flow rate maintained relatively constant by regulator, requires 110 vac power supply