Share Email Print
cover

Proceedings Paper • Open Access

Resistance and gain of the microchannel plate (MCP) detector as a function of temperature
Author(s): O. B. Chassela; A. Grigoreiv; A. Fedorov; N. André; E Le-Comte; J. Rouzaud; P. Spezzigu

Paper Abstract

The microchannel plate (MCP) has been used for decades as a photon, electron and atoms detector in most of the space instruments dedicated for X-rays, energetic neutral atoms, and charged particle imaging. The deep-space missions, as nearfuture ESA Jupiter Icy moon Explorer (JUICE) mission, expect very low temperature conditions on the destination orbit. Since instruments are usually calibrated on the ground under the “room” temperature, it is very important to know the variation of the detectors properties with temperature. The resistance and the gain of the MCP detectors, dedicated for the JENI (PEP package) instrument onboard of JUICE, were measured as a function of temperature at INTRASPEC TECHNOLOGIES, Toulouse, France for the temperature range -50 to +50°C and at the CALIPSO-3 facility of the Institut de Recherche en Astrophysique et Planétologie (IRAP), Toulouse, France for the temperature range -25 to +25°C using samples from PHOTONIS France and PHOTONIS USA. It is also important to know how the resistance of the MCP detector behaves with temperature either to properly size the high-voltage source or, conversely, to choose a technology according to the size of the MCP detector and the maximum current that the high-voltage source can supply. Since the environment of Jupiter is very severe, the instruments will operate in the presence of high-energy particles that will induce background noise on the MCP detectors due to the shielding of the instruments against radiation. Therefore, the background noise in the Jovian environment represents a crucial issue for the MCP detectors whose gain can be degraded prematurely if too much charge is extracted from them due to the induced particles. Ours measurements show that the resistance of the MCP detector increases when the temperature decreases and is influenced by its self-heating, whereas the gain behavior depends on the technology of the MCPs. This is an important result which can be used to optimize the gain performance and the lifetime of the MCP detector. These experimental tests were funded by the French Space Agency CNES.

Paper Details

Date Published: 12 July 2019
PDF: 7 pages
Proc. SPIE 11180, International Conference on Space Optics — ICSO 2018, 1118030 (12 July 2019); doi: 10.1117/12.2536027
Show Author Affiliations
O. B. Chassela, Institut de Recherche en Astrophysique et Planétologie (France)
A. Grigoreiv, Institut de Recherche en Astrophysique et Planétologie (France)
A. Fedorov, Institut de Recherche en Astrophysique et Planétologie (France)
N. André, Institut de Recherche en Astrophysique et Planétologie (France)
E Le-Comte, Institut de Recherche en Astrophysique et Planétologie (France)
J. Rouzaud, Institut de Recherche en Astrophysique et Planétologie (France)
P. Spezzigu, Intraspec Technologies (France)


Published in SPIE Proceedings Vol. 11180:
International Conference on Space Optics — ICSO 2018
Zoran Sodnik; Nikos Karafolas; Bruno Cugny, Editor(s)

© SPIE. Terms of Use
Back to Top
PREMIUM CONTENT
Sign in to read the full article
Create a free SPIE account to get access to
premium articles and original research
Forgot your username?
close_icon_gray