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Alpha Ionization Innovative Solutions for Static - Company Seven
“Alpha Ionization. Innovative Solutions ... safe, sealed source of alpha ionization. See figure 1. ... At NRD, we work hard to establish a strong ... limited to the annual change-out of the ionizing cell. ... There is americium in some smoke detectors;.
[ AlphaIonization.p.pdf - Read/Download File

How do they work
Smoke detectors are one of those amazing inventions that, because of mass ... Ionization smoke detectors use an ionization chamber and a source of ionizing radiation to ... americium has a half-life of 432 years, and is a good source of alpha.
[ smoke.pdf - Read/Download File

Safety Facts Of Alpha Ionizer - Static Control Ionizers
The Alpha Ionizer is a device used to neutralize static charge on any material. It uses a radioactive source called Polonium (Po-210) to produce ions (positively or negatively charged particles) in the surrounding air ... Ionizing radiation can be found in smoke detectors and sometimes .... If a person were to work 8 hours a day ...
[ NRD_Bulletin_SafetyFactsOf_AlphaIonizer.pdf - Read/Download File

Ionization Detectors (Circuit Cellar 256 November 2011)
Photo 1—The inside of a smoke detector with the ionization chamber removed. .... trode partially shields the alpha source so it's not exposed to the entire ...
[ CC2011110601.pdf - Read/Download File

JSP 392 - Leaflet 18 - Gov.uk
Oct 2, 2014 ... 1 The majority of ionisation type smoke detectors across the MOD contain Americium- ... the Management of Health and Safety at Work Regulations 1999, the following specific ... Ionising Radiations Regulations 1999 (IRR99) (apply directly); ... Alpha radiation emitted from the foil source will not penetrate.
[ JSP392_Lft_18_Smoke_Detectors.pdf - Read/Download File

Ionizing Radiation - National Toxicology Program
Ionization results in the pro- duction of ... Thorium dioxide, which decays by emission of alpha particles, was first listed .... Ionization-type smoke detectors contain americium-241, which .... to ionizing radiation is from anthropogenic sources, such as medical ..... performed defense-related work) were monitored for exposure to.
[ ionizingradiation.pdf - Read/Download File

Exam paper - NZQA
Nov 29, 2005 ... his “alpha particle scattering” experiment, Rutherford proposed an ... that it has very little ionising ability and thus causes very little ionisation. ... (b) A smoke detector works because the radioactive source ionises smoke ...
[ 90256-exm-05.pdf - Read/Download File

Ionization Chamber Smoke Detectors Containing Am-241 - ORAU
... and 89 percent. Most ionization chamber smoke detectors contain americium- 241 (Am-241), a radioactive substance that emits ionizing radiation. .... 3.3 Am- 241 Alpha Source Foil......... . . . . . . 3.4 .... The work should prove to be an important ...
[ 1156.pdf - Read/Download File

Radiation Safety Manual - Stanford University
many unique characteristics related to radioactivity and ionizing radiation; ... low activity alpha sources that are used in home smoke detectors through high ... uranium salts must work under a controlled radiation authorization (CRA) and ..... Ionization chamber survey meters are used to measure external radiation dose.
[ rad_safety_manual.pdf - Read/Download File

Disposal of Fire/Smoke Detectors - US Fire Administration
This edition of Tech Talk looks at the disposal of fire/smoke detectors. Depending on ... Combination smoke detectors, which contain both ionization and photoelectric smoke ... used as the source of ionizing radiation. Americium ... Americium-241 emits alpha particles and low-energy gamma rays when it decays . The low-.
[ techtalk_v1n2_1209.pdf - Read/Download File

Smoke Detectors - NC Radiation Protection
detectors, uses a small radioactive source as a key component in detecting smoke ... The radionuclide used in ionization smoke detectors is an oxide of ... flow of alpha particles is interrupted by smoke particles. ... EPA also works with the National Conference of Radiation ... Never take an ionizing smoke detector apart.
[ smokdetgud.pdf - Read/Download File

NUREG/CR-1156, "Environmental Assessment of Ionization - NRC
... and 89 percent. Most ionization chamber smoke detectors contain americium- 241 (Am-241), a radioactive substance that emits ionizing radiation. .... 3.3 Am- 241 Alpha Source Foil......... . . . . . . 3.4 .... The work should prove to be an important ...
[ ML071690015.pdf - Read/Download File

massachusetts smoke alarm laws are changing as of - Boston.gov
Jan 1, 2010 ... not be allowed to use ionization smoke alarms as stand alone alarms. While the new ... The diagram below illustrates how the technology works. Under normal ... Alpha particles from the americium source ionize air molecules.
[ SmokeAlarmLaws_Jan2010.pdf - Read/Download File

Radiation Encounter - Canadian Nuclear Society
Jan 26, 2002 ... Alpha and beta particles, like EM radiation, are invisible to us, but we can build devices that let us ... when vapour turns to water – works best ... see thin “cloud trails” emanating from a radioactive source, unmistakably marking .... ionization smoke detector – a device using ionizing radiation to detect smoke ...
[ radiation_whitlock.pdf - Read/Download File

Understanding Radiation in Our World - hpschapters.org
Types and Sources of Ionizing Radiation . ..... Beta radiation, Alpha radiation, Neutrons. 1 ..... sets, video displays, and smoke detectors account for another three ...
[ radgdebk.pdf - Read/Download File

IONISING RADIATION
Alpha particles and neutrons ... and smoke detectors, sterilisation of medical ... strength of a radioactive source is ... gamma. Alpha rays (helium nuclei) may be stopped by a piece of paper, beta rays .... undertake any work involving exposure .
[ Pub6_english.pdf - Read/Download File

Obtaining and Investigating Unconventional Sources of Radioactivity
cium-241 within the detector produces alpha particles that are used to ... ionization smoke detectors can be obtained from home im- provement .... CA. Fig. 2. An ionizing smoke alarm .... cally lower if the clock or watch no longer works, which is.
[ radioactivesources0210.pdf - Read/Download File

Radiation Exposure Activities - US Environmental Protection Agency
Man-made ionizing and non-ionizing sources such as smoke detectors, microwaves, cell ... types of ionizing radiation emitted during radioactive decay are alpha ..... work. 6. Distribute the Radiation Worksheet and direct students to complete ...
[ radiation-exposure-activities.pdf - Read/Download File

ionizing radiation - Agency for Toxic Substances and Disease Registry
Alpha and beta particles are small, fast-moving bits of atoms that a radioactive ... industry for smoke detectors, medical tests, and other uses. These radioactive ...
[ tfacts149.pdf - Read/Download File

04.11.07 17:00 Detector of alpha particles and x-rays - arXiv.org
Apr 11, 2007 ... Ionization chambers working in ambient air in current detection ... smoke detector which one can seen in many houses. [3]. It is a small ionization chamber containing an alpha source; the current produced by the alpha ... The aim of this work is to investigate if for some applications, for example for alpha.
[ arXiv:0711.1312.pdf?version=1 - Read/Download File

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