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2026 Annual Conference
May 31–June 3, 2026
Denver, CO|Sheraton Denver
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Latest News
What’s the most difficult question you’ve been asked as a maintenance instructor?
Blye Widmar
"Where are the prints?!"
This was the final question in an onslaught of verbal feedback, comments, and critiques I received from my students back in 2019. I had two years of instructor experience and was teaching a class that had been meticulously rehearsed in preparation for an accreditation visit. I knew the training material well and transferred that knowledge effectively enough for all the students to pass the class. As we wrapped up, I asked the students how they felt about my first big system-level class, and they did not hold back.
“Why was the exam from memory when we don’t work from memory in the plant?” “Why didn’t we refer to the vendor documents?” “Why didn’t we practice more on the mock-up?” And so on.
Roald A. Schrack
Nuclear Technology | Volume 67 | Number 2 | November 1984 | Pages 326-332
Technical Paper | Analyse | doi.org/10.13182/NT84-A33520
Articles are hosted by Taylor and Francis Online.
The use of resonance neutron radiography as a means of monitoring the amount of 235U in waste material is investigated. A matrix material simulating incinerator ash is inoculated with 235U in concentrations ranging from 4.8 × 10−4 to 4.6 × 10−3 g/cm3. The observed uncertainty agrees well with an analytical model and ranges from 16% for the lowest concentration to 2.5% for the highest concentration. The effect of inhomogeneity of matrix and sample is determined and found to be in agreement with analytical models. The technique is demonstrated on sample sizes ranging from 2-ℓ bottles to 55-gal drums.
