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
A total-absorption calorimeter for medium-energy electron beam calibration
β Scribed by H. Sunaga; R. Tanaka; N.M. Ali; K. Yotsumoto
- Publisher
- Elsevier Science
- Year
- 1995
- Tongue
- English
- Weight
- 270 KB
- Volume
- 46
- Category
- Article
- ISSN
- 0969-806X
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β¦ Synopsis
A total-absorption calorimeter was studied from the point of the materials, the size, and the structure for calibration of the medium-energy electron beams in radiation processing. The calorimeter with graphite core with 40 mm in diameter and 12 mm in thickness is useful for 3 MeV class electrons. A surrounding ring for the calorimeter core is found to be effective for accurate measurements. The total absorption calorimeter is a useful tool for periodical calibration of irradiation parameters in industrial EB processing.
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The design and experiments of a graphite absorbed-dose calorimeter in the operation of quasiadiabatic mode is described which is used for measuring high dose and calibrating passive dosimeters in electron beam. KEYWORD graphite calorimeter .high dose dosimetry. radiation processing. electron beam. t
A simple calorimeter with a totally-absorbing graphite body was designed and tested at a 400-keV electron accelerator. For a given conveyor speed and beam current, the calorimetric measurements are expressed as a quantity F (J 'cm-')-the absorbed energy per unit surface area-which is found to be in
Sekt. Physik/Ekkhnlk der UnlrenltAt Gnlfiw8ld. DDR, Greifmald (a); Chrkov State Unlvernlty. UBBR, Chukov (h)