User:Matapulgas/Evaluate an Article

Evaluate an article
This is where you will complete your article evaluation. Please use the template below to evaluate your selected article.


 * Name of article: Thermoluminescent dosimeter
 * Briefly describe why you have chosen this article to evaluate. It belongs to my area of expertise. The treatment of the subject is rather superficial, its view lacks amplitude. It is an important subject for many scientists, professionals and students and should be improved.

Lead
A thermoluminescent dosimeter, or TLD, is a type of radiation dosimeter, consisting of a piece of a thermoluminescent crystalline material inside a radiolucent package.
 * Guiding questions

When a thermoluminescent crystal is exposed to ionizing radiation, it absorbs and traps some of the energy of the radiation in its crystal lattice. When heated, the crystal releases the trapped energy in the form of visible light, the intensity of which is proportional to the intensity of the ionizing radiation the crystal was exposed to. A specialized detector measures the intensity of the emitted light, and this measurement is used to calculate the approximate dose of ionizing radiation the crystal was exposed to.

Materials exhibiting thermoluminescence in response to ionizing radiation include calcium fluoride, lithium fluoride, calcium sulfate, lithium borate, calcium borate, potassium bromide, and feldspar. It was invented in 1954 by Professor Farrington Daniels of the University of Wisconsin-Madison.
 * Does the Lead include an introductory sentence that concisely and clearly describes the article's topic? The introductory sentence is limited in scope.
 * Does the Lead include a brief description of the article's major sections? It is a brief article
 * Does the Lead include information that is not present in the article? Yes
 * Is the Lead concise or is it overly detailed? Concise and technically erroneous

Lead evaluation
Limited in scope, contains errors.

Content

 * Guiding questions

Types
The two most common types of TLDs are calcium fluoride and lithium fluoride, with one or more impurities to produce trap states for energetic electrons. The former is used to record gamma exposure, the latter for gamma and neutron exposure (indirectly, using the Li-6 (n,alpha) nuclear reaction; for this reason, LiF dosimeters may be enriched in lithium-6 to enhance this effect or enriched in lithium-7 to reduce it). Other types include beryllium oxide, and calcium sulfate doped with thulium.

As the radiation interacts with the crystal it causes electrons in the crystal's atoms to jump to higher energy states, where they stay trapped due to intentionally introduced impurities (usually manganese or magnesium) in the crystal, until heated. Heating the crystal causes the electrons to drop back to their ground state, releasing a photon of energy equal to the energy difference between the trap state and the ground state.
 * Is the article's content relevant to the topic? Yes
 * Is the content up-to-date? Not necessarily
 * Is there content that is missing or content that does not belong? Content is missing
 * Does the article deal with one of Wikipedia's equity gaps? Does it address topics related to historically underrepresented populations or topics? No

Tone and Balance

 * Guiding questions


 * Is the article neutral? Yes
 * Are there any claims that appear heavily biased toward a particular position? No
 * Are there viewpoints that are overrepresented, or underrepresented? Knowledge is underrepresented
 * Does the article attempt to persuade the reader in favor of one position or away from another? No

Sources and References

 * Guiding questions


 * Are all facts in the article backed up by a reliable secondary source of information? No
 * Are the sources thorough - i.e. Do they reflect the available literature on the topic? No, too superficial
 * Are the sources current? So-so
 * Are the sources written by a diverse spectrum of authors? Do they include historically marginalized individuals where possible? Yes
 * Check a few links. Do they work?

Organization

 * Guiding questions


 * Is the article well-written - i.e. Is it concise, clear, and easy to read? No
 * Does the article have any grammatical or spelling errors? No
 * Is the article well-organized - i.e. broken down into sections that reflect the major points of the topic? Too brief

Images and Media

 * Guiding questions


 * Does the article include images that enhance understanding of the topic? No
 * Are images well-captioned? No
 * Do all images adhere to Wikipedia's copyright regulations?
 * Are the images laid out in a visually appealing way? No

Checking the talk page

 * Guiding questions


 * What kinds of conversations, if any, are going on behind the scenes about how to represent this topic? Somebody corrected a previous text.
 * How is the article rated? Is it a part of any WikiProjects? Two WikiProjects. Start Class and Low-importance in both
 * How does the way Wikipedia discusses this topic differ from the way we've talked about it in class? ??

Overall impressions

 * Guiding questions


 * What is the article's overall status? ??
 * What are the article's strengths?
 * How can the article be improved? It must be completed, its scope expanded
 * How would you assess the article's completeness - i.e. Is the article well-developed? Is it underdeveloped or poorly developed? Underdeveloped

Optional activity

 * Choose at least 1 question relevant to the article you're evaluating and leave your evaluation on the article's Talk page. Be sure to sign your feedback

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