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Preliminary Verification of the PHITS Code Applicability to Conversion Efficiency Calculation of Direct Charge Nuclear Battery

Authors :
Hiroki Takezawa
Ryuma Kigeuchi
Hibiki Umeda
Fumihiro Tamura
Yuki Uchida
Takashi Kikuchi
Source :
Machines, Vol 12, Iss 6, p 395 (2024)
Publication Year :
2024
Publisher :
MDPI AG, 2024.

Abstract

A direct charge nuclear battery, or DCNB, is one of the nuclear batteries based on direct energy conversion and is characterized by exceptional high voltage generation and conversion efficiency higher than other nuclear batteries. For studying potential applications of DCNB, a preliminary estimation of DCNB electrical power and performance is required; hence, conversion efficiency analysis is crucial. For preliminary verification purposes, an ideal DCNB conversion efficiency was calculated under the simplified electron transport model by using the general-purpose Monte Carlo particle transport calculation code PHITS. The result was compared with a reference experimental efficiency for a T-loaded parallel plate DCNB, and the resulting relative error was approximately 12%. Considering the relative error of 20% or less in DCNB conversion efficiency shown by preceding studies, the resulting error was comparable, and it was concluded that the PHITS code is sufficiently applicable to DCNB conversion efficiency analysis.

Details

Language :
English
ISSN :
20751702
Volume :
12
Issue :
6
Database :
Directory of Open Access Journals
Journal :
Machines
Publication Type :
Academic Journal
Accession number :
edsdoj.03fd8e4aab5b46d48709c4af2371444a
Document Type :
article
Full Text :
https://doi.org/10.3390/machines12060395