carlwillis.wordpress.com
Gamma activity measurements of Tokyo-area soil samples | Special Nuclear Material
https://carlwillis.wordpress.com/2011/11/04/gamma-activity-measurements-of-tokyo-area-soil-samples
A Carl Willis Joint. Laquo; Trick or Treat! US Radium, Then and Now. Gamma activity measurements of Tokyo-area soil samples. November 4, 2011. Three nuclear reactors melted down. But even densely-populated Tokyo, some 150 miles distant, received significant fallout. Last month, I received a set of six soil samples from the Tokyo region, and, using my HPGe gamma detector. I have attempted a quantitative analysis of the two predominant gamma activities in these samples, Cs-137 and Cs-134. Sample 2: Garden ...
carlwillis.wordpress.com
Lake Chagan, seen from the crater rim | Special Nuclear Material
https://carlwillis.wordpress.com/2012/08/19/gamma-analysis-of-chagan-atomsite/p1050770m_small
A Carl Willis Joint. Gamma Analysis of Chagan “Atomsite”. Raquo; Lake Chagan, seen from the crater rim. Lake Chagan, seen from the crater rim. Lake Chagan, seen from the crater rim. Leave a Reply Cancel reply. Enter your comment here. Fill in your details below or click an icon to log in:. Address never made public). You are commenting using your WordPress.com account. ( Log Out. You are commenting using your Twitter account. ( Log Out. You are commenting using your Facebook account. ( Log Out.
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Dose rate in Chagan crater | Special Nuclear Material
https://carlwillis.wordpress.com/2012/08/19/gamma-analysis-of-chagan-atomsite/p1050811m_small
A Carl Willis Joint. Gamma Analysis of Chagan “Atomsite”. Raquo; Dose rate in Chagan crater. Dose rate in Chagan crater. Measured with an HP-270 energy-compensated GM tube, the gamma exposure rates vary between about 1 and 2 mR/hr on the banks of the Chagan crater lake. Leave a Reply Cancel reply. Enter your comment here. Fill in your details below or click an icon to log in:. Address never made public). You are commenting using your WordPress.com account. ( Log Out. Notify me of new comments via email.
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Ortec HPGe detector | Special Nuclear Material
https://carlwillis.wordpress.com/2012/08/19/gamma-analysis-of-chagan-atomsite/p1040287_sm2
A Carl Willis Joint. Gamma Analysis of Chagan “Atomsite”. Raquo; Ortec HPGe detector. The instrument used in this analysis is an Ortec GEM p-type germanium detector, pictured here. The Dewar vacuum pump at right is normally turned off while the detector’s Dewar is holding liquid nitrogen. Leave a Reply Cancel reply. Enter your comment here. Fill in your details below or click an icon to log in:. Address never made public). You are commenting using your WordPress.com account. ( Log Out. Build a website wi...
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HPGe Detector, Part I: Repair | Special Nuclear Material
https://carlwillis.wordpress.com/2011/09/16/hpge-detector-part-i-repair
A Carl Willis Joint. Laquo; Visiting Vogtle and Bellefonte Nuclear Power Plants. Videos from my recent trip to Chernobyl. HPGe Detector, Part I: Repair. September 16, 2011. A high-purity germanium (HPGe). Is the ultimate instrument for energy spectrometry of gamma radiation. For the nuclear hobbyist, an HPGe opens a window into a fascinating realm of home-accessible, low-intensity nuclear reactions that are obscured by background in other detectors lacking the superlative resolution . 8212;the thing work...
carlwillis.wordpress.com
Another “Kharitonchik” from Chagan | Special Nuclear Material
https://carlwillis.wordpress.com/2012/08/19/gamma-analysis-of-chagan-atomsite/p1060433m_small
A Carl Willis Joint. Gamma Analysis of Chagan “Atomsite”. Raquo; Another “Kharitonchik” from Chagan. Another “Kharitonchik” from Chagan. Another “Kharitonchik” from Chagan. Leave a Reply Cancel reply. Enter your comment here. Fill in your details below or click an icon to log in:. Address never made public). You are commenting using your WordPress.com account. ( Log Out. You are commenting using your Twitter account. ( Log Out. You are commenting using your Facebook account. ( Log Out.
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Gamma Analysis of Chagan “Atomsite” | Special Nuclear Material
https://carlwillis.wordpress.com/2012/08/19/gamma-analysis-of-chagan-atomsite
A Carl Willis Joint. Laquo; Visit to the Semipalatinsk Nuclear Test Site. Herb Anderson’s “Live Block” of the Chicago Pile. Gamma Analysis of Chagan “Atomsite”. August 19, 2012. 8220;Atomic Lake”) was formed in 1965 following a thermonuclear cratering explosion on the Semipalatinsk Test Site in Kazakhstan. More photos from my recent trip to the site are here. Lake Chagan, seen from the crater rim. Dose rate in Chagan crater. I decided to take a more scientific look. Soil grab-sample from Lake Chagan.
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Soil grab-sample from Lake Chagan | Special Nuclear Material
https://carlwillis.wordpress.com/2012/08/19/gamma-analysis-of-chagan-atomsite/p1060443m_small
A Carl Willis Joint. Gamma Analysis of Chagan “Atomsite”. Raquo; Soil grab-sample from Lake Chagan. Soil grab-sample from Lake Chagan. This sample fills my standard 3-ounce ULine plastic jar. It weighs about 87 grams and has a bulk density of 0.84 g per cubic centimeter. Leave a Reply Cancel reply. Enter your comment here. Fill in your details below or click an icon to log in:. Address never made public). You are commenting using your WordPress.com account. ( Log Out. Notify me of new comments via email.
carlwillis.wordpress.com
Sample positioning | Special Nuclear Material
https://carlwillis.wordpress.com/2012/08/19/gamma-analysis-of-chagan-atomsite/p1040295_sm2
A Carl Willis Joint. Gamma Analysis of Chagan “Atomsite”. Raquo; Sample positioning. A custom acrylic “nose-piece” mounts on the HPGe detector to position sample jars near it in controlled geometry. Leave a Reply Cancel reply. Enter your comment here. Fill in your details below or click an icon to log in:. Address never made public). You are commenting using your WordPress.com account. ( Log Out. You are commenting using your Twitter account. ( Log Out. Notify me of new comments via email.
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Visit to the Semipalatinsk Nuclear Test Site | Special Nuclear Material
https://carlwillis.wordpress.com/2012/08/13/visit-to-the-semipalatinsk-nuclear-test-site
A Carl Willis Joint. Laquo; A Little Bit of Fission. Gamma Analysis of Chagan “Atomsite”. Visit to the Semipalatinsk Nuclear Test Site. August 13, 2012. At 7:00 on the morning of August 29, 1949. A nuclear fireball lit up the skies over a desolate expanse of steppe about 100 km from Semipalatinsk in the Kazakh Soviet Socialist Republic. This explosion—the culmination of a research effort personally supervised by fearsome NKVD chief Lavrenty Beria. Photo selections below include Kurchatov; Soviet “G...
