Cesium-137 - History Page - UWL Medical Dosimetry Brachy Class 08-09

	Date/Time	Made By	Edit Note	Type	Scope
	Apr 6 2009, 10:18 PM EDT	danacole		edit	77 words added
Change: used, along with the total source strength should be documented. A 'Radioactive Materials' sign must be posted on the patient's door, and visitor time and distance from the patient restricted. After removal of the sources, the patient must be surveyed to ensure they were indeed removed completely.4 Used in formula/calculation: View changes from previous version. (Word count: 1130)
	Apr 6 2009, 8:17 PM EDT	danacole		edit	43 words added 1 word deleted
Change: Cs-137 in our environment came mostly from nuclear weapons testing in the 1950's and 1960's.8 Chemical/Radioactive Composition: Cesium is produced in nuclear reactor fuel as a natural by-product of nuclear fission. It can be chemically separated from spent nuclear fuel and is widely available.2. Radioactive Cesium is View changes from previous version. (Word count: 1051)
	Apr 6 2009, 7:58 PM EDT	danacole		edit	13 words added
Change: Insoluble powder or ceramic microsphere matrix enclosed in stainless steel needles or tubes.4 HVL in lead: The HVL in lead for Cesium-137 is 6.5 mm.³ Measurement/Calibrations/QA: They decay about 2% per year.2. Cs-137 decays by β-emission to a metastable state of View changes from previous version. (Word count: 996)
	Apr 6 2009, 7:21 PM EDT	danacole		edit	2 words added 1 word deleted
Change: 7. Khan, FM. The Physics of Radiation Therapy. 3rd ed. Philadelphia, PA: Lippincott Williams and Wilkins; 2003: 360-397.Images:Image 1. http://www.npp.hu/mukodes/beta-e.htmImage 2 & 3 Bentel GC. Dose calculation in brachytherapy. In: 2nd ed. Radiation Therapy Planning. New York, NY: McGraw-Hill; 569,572.Authors:Denise,MichelleMichelle, Dana, View changes from previous version. (Word count: 982)
	Apr 6 2009, 7:21 PM EDT	danacole		edit	81 words added
Change: It is a soft, silvery-gold alkali metal with a melting point of 28 degrees C, making it one of only five metals that are liquid at room temperatures.6Links:References:1. http://www.epa.gov/rpdweb00/radionuclides/cesium.html#whodiscovered Accessed 3/10/092. Washington CM, Leaver DT. Aspects of brachytherapy. In: Principles and Practice of View changes from previous version. (Word count: 981)
	Apr 6 2009, 11:12 AM EDT	simerson.mich	michelle green	edit	1 word added
Change: 3/17094. http://www.dosimetrytrainingtool.com5. Bentel GC. Dose calculations in brachytherapy. In: 2nd ed. Radiation Therapy Planning. New York, NY: McGraw-Hill; 1996:566-569.Images:Image 1. http://www.npp.hu/mukodes/beta-e.htmImage 2 & 3 Bentel GC. Dose calculation in brachytherapy. In: 2nd ed. Radiation Therapy Planning. New York, NY: McGraw-Hill; 569,572.Authors:Denise,Michelle View changes from previous version. (Word count: 891)
	Apr 5 2009, 6:19 PM EDT	dkaelberer	authors	edit	2 words added
Change: Accessed 3/17094. http://www.dosimetrytrainingtool.com5. Bentel GC. Dose calculations in brachytherapy. In: 2nd ed. Radiation Therapy Planning. New York, NY: McGraw-Hill; 1996:566-569.Images:Image 1. http://www.npp.hu/mukodes/beta-e.htmImage 2 & 3 Bentel GC. Dose calculation in brachytherapy. In: 2nd ed. Radiation Therapy Planning. New York, NY: McGraw-Hill; 569,572.Authors:Denise, View changes from previous version. (Word count: 890)
	Apr 1 2009, 5:42 PM EDT	simerson.mich	photos added michelle	edit	22 words added 1 word deleted 1 image added 1 image deleted
Change: http://www.rpdinc.com/html/cesium-137.html Accessed 3/17094. http://www.dosimetrytrainingtool.com5. Bentel GC. Dose calculations in brachytherapy. In: 2nd ed. Radiation Therapy Planning. New York, NY: Mcgraw-Hill;McGraw-Hill; 1996:566-569.Images:Image 1. http://www.npp.hu/mukodes/beta-e.htmImage 2 & 3 Bentel GC. Dose calculation in brachytherapy. In: 2nd ed. Radiation Therapy Planning. New York, NY: McGraw-Hill; 569,572. View changes from previous version. (Word count: 888)
	Apr 1 2009, 5:35 PM EDT	simerson.mich		edit	3 words added 2 images added 1 image deleted
Change: Image 2 Image3 Relevant Historical Data: In 1860, Gustav Kirchhoff and Robert Bunsen discovered nonradioactive cesium in mineral water in Germany. Radioactive cesium-137, and many other radionuclides that are used in nuclear medicine, was discovered in the late 1930s by Glenn T. Seaborg and his coworker, Margaret Melhase.¹ View changes from previous version. (Word count: 866)
	Apr 1 2009, 5:29 PM EDT	simerson.mich		edit	1 image added 1 image deleted
Change: There were only format changes (bold, italics, etc.) in this version. See this version for details. (Word count: 863)
	Apr 1 2009, 5:26 PM EDT	simerson.mich		edit
Change: There were only format changes (bold, italics, etc.) in this version. See this version for details. (Word count: 863)
	Apr 1 2009, 5:18 PM EDT	simerson.mich		edit	1 image added 1 image deleted
Change: There were only format changes (bold, italics, etc.) in this version. See this version for details. (Word count: 863)
	Apr 1 2009, 5:15 PM EDT	simerson.mich		edit
Change: There were only format changes (bold, italics, etc.) in this version. See this version for details. (Word count: 863)
	Apr 1 2009, 5:12 PM EDT	simerson.mich		edit	1 image added 1 image deleted
Change: There were only format changes (bold, italics, etc.) in this version. See this version for details. (Word count: 863)
	Apr 1 2009, 5:06 PM EDT	simerson.mich		edit	1 image added 1 image deleted
Change: There were only format changes (bold, italics, etc.) in this version. See this version for details. (Word count: 863)
	Apr 1 2009, 5:04 PM EDT	simerson.mich		edit	1 image added
Change: There were only format changes (bold, italics, etc.) in this version. See this version for details. (Word count: 863)
	Mar 22 2009, 1:15 PM EDT	simerson.mich		edit	1 word added 1 word deleted
Change: In: Principles and Practice of Radiation Therapy Physics, Simulation, and Treatment Planning. St.Louis, MO: Mosby_year Book, Inc.; 1996:39.1996:39,44.3. http://www.rpdinc.com/html/cesium-137.html Accessed 3/17094. http://www.dosimetrytrainingtool.com5. Bentel GC. Dose calculations in brachytherapy. In: 2nd ed. Radiation Therapy Planning. New York, NY: Mcgraw-Hill; 1996:566-569.Images:Image 1. http://www.npp.hu/mukodes/beta-e.htm View changes from previous version. (Word count: 863)
	Mar 22 2009, 1:14 PM EDT	simerson.mich		edit	98 words added
Change: Currently the standard unit is the centigray to a specific anatomical point or isodose line. The anatomical points used for cervical and uterine treatment are View changes from previous version. (Word count: 862)
	Mar 20 2009, 6:56 PM EDT	simerson.mich	Michelle green	edit	241 words added
Change: In a typical tandem and ovoid application, only the segment of the tandem lying within the uterine canal should be loaded. The keel on the View changes from previous version. (Word count: 764)
	Mar 20 2009, 5:53 PM EDT	amestoy.will		edit	12 words added 8 words deleted
Change: Cs-137: 3.3. 3Cs-137:³ Exposure Rate Constant: The exposure rate constant of Cs-137 is 3.28 R-cm2/mCi-hr.4 Half-life Properties: The half-life of cesium-137 is 30.22 years.1years.¹ Forms available for use: Wide variety of needle or tube configurations.2configurations.² HVL in lead: The HVL View changes from previous version. (Word count: 513)