Calorimeters for calibration of high-dose dosimeters in high-energy electron beams

✍ Scribed by William L. McLaughlin; Marlon L. Walker; Jimmy C. Humphreys

• Publisher: Elsevier Science
• Year: 1995
• Tongue: English
• Weight: 521 KB
• Volume: 46
• Category: Article
• ISSN: 0969-806X
• DOI: 10.1016/0969-806x(95)00360-a

✦ Synopsis

Graphite calorimeters in both single-slab and modular multiple-slab disk geometries have been designed and used for measuring absorbed doses in graphite in intense electron beams of 2 to 12 MeV energy. The modular system has also been used with two to eight graphite elements to measure electron-beam depth-dose curves and to calibrate the response functions of radiochromicfilm and alanine-pellet dosimeters. An advantage of this new design is that such calibrations can be accomplished without requiring electron-beam current or charge monitoring, since the calorimeter modules adjacent to the dummy graphite element used to hold the dosimeters during calibration provide simultaneous calorimetric dose monitoring.

Temperature-dependence corrections for dosimeter response are also simplified in this way.