Design and characterization of a single photoelectron calibration system for the NectarCAM camera of the medium-sized telescopes of the Cherenkov Telescope Array

被引：5

作者：

Biasuzzi, Barbara ^{[1
]}

Pressard, Kevin ^{[1
]}

Biteau, Jonathan ^{[1
]}

Geoffroy, Brice ^{[1
]}

Goncalves, Carlos Domingues ^{[1
]}

Hull, Giulia ^{[1
]}

Imre, Miktat ^{[1
]}

Josselin, Michael ^{[1
]}

Maroni, Alain ^{[1
]}

Mathon, Bernard ^{[1
]}

Seminor, Lucien ^{[1
]}

Suomijarvi, Tiina ^{[1
]}

Thi Nguyen Trung ^{[1
]}

Vatrinet, Laurent ^{[1
]}

Brun, Patrick ^{[5
]}

Caroff, Sami ^{[2
]}

Fegan, Stephen ^{[2
]}

Ferreira, Oscar ^{[2
]}

Jean, Pierre ^{[6
]}

Karkar, Sonia ^{[3
]}

Olive, Jean-Francois ^{[6
]}

Rivoire, Stephane ^{[5
]}

Sizun, Patrick ^{[4
]}

Thiant, Floris ^{[2
]}

Tsiahina, Adellain ^{[6
]}

Toussenel, Francois ^{[3
]}

Vasileiadis, Georges ^{[5
]}

机构：

[1] Univ Paris Saclay, Univ Paris Sud, Inst Phys Nucl, IN2P3 CNRS, 15 Rue Georges Clemenceau, F-91406 Orsay, France

[2] Univ Paris Saclay, Lab Leprince Ringuet, Ecole Polytech UMR 7638, CNRS IN2P3, F-91128 Palaiseau, France

[3] Sorbonne Univ, UPMC Univ Paris 06, Univ Paris Diderot, Sorbonne Paris Cite,CNRS,LPNHE, 4 Pl Jussieu, F-75252 Paris 5, France

[4] Univ Paris Saclay, CEA, IRFU, F-91191 Gif Sur Yvette, France

[5] Univ Montpellier, Lab Univers & Particules Montpellier, CNRS IN2P3, CC 72,Pl Eugene Bataillon, F-34095 Montpellier 5, France

[6] Univ Paul Sabatier, Inst Rech Astrophys & Planetol, CNRS INSU, 9 Ave Colonel Roche,BP 44346, F-31028 Toulouse 4, France

来源：

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT | 2020年 / 950卷 / 950期

关键词：

CTA; NectarCAM; Medium sized telescope; CTA;

D O I：

10.1016/j.nima.2019.162949

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

In this work, we describe the optical properties of the single photoelectron (SPE) calibration system designed for NectarCAM, a camera proposed for the Medium Sized Telescopes (MST) of the Cherenkov Telescope Array (CTA). One of the goals of the SPE system, as integral part of the NectarCAM camera, consists in measuring with high accuracy the gain of its photo-detection chain. The SPE system is based on a white painted screen where light pulses are injected through a fishtail light guide from a dedicated flasher. The screen - placed 15 mm away from the focal plane - is mounted on an XY motorization that allows movements over all the camera plane. This allows in-situ measurements of the SPE spectra via a complete scan of the 1855 photo-multiplier tubes (PMTS) of NectarCAM. This calibration process will enable the reduction of the systematic uncertainties on the energy reconstruction of gamma-rays coming from distant astronomical sources and detected by CTA. We discuss the design of the screen used in the calibration system and we present its optical performances in terms of light homogeneity and timing of the signal.

引用

页数：9

共 21 条

[21] Calibration and performance of the readout system based on switched capacitor arrays for the Large-Sized Telescope of the Cherenkov Telescope Array
Nozaki, Seiya
Awai, Kyosuke
Bamba, Aya
Barrio, Juan Abel
Bernardos, Maria Isabel
Blanch, Oscar
Boix, Joan
Cassol, Franca
Choushi, Yuuki
Delgado, Carlos
Diaz, Carlos
Fouque, Nadia
Freixas, Lluis
Gliwny, Pawel
Gunji, Shuichi
Hadasch, Daniela
Hoffmann, Dirk
Houles, Julien
Inome, Yusuke
Iwamura, Yuki
Jouvin, Lea
Katagiri, Hideaki
Kawamura, Kiomei
Kerszberg, Daniel
Konno, Yusuke
Kubo, Hidetoshi
Kushida, Junko
Kobayashi, Yukiho
Lopez, Ruben
Martinez, Gustavo
Masuda, Shu
Mazin, Daniel
Moralejo, Abelardo
Moretti, Elena
Nagayoshi, Tsutomu
Nakamori, Takeshi
Nishijima, Kyoshi
Nogami, Yuto
Nogues, Leyre
Ohoka, Hideyuki
Oka, Tomohiko
Okazaki, Nao
Okumura, Akira
Orito, Reiko
Panazol, Jean-Luc
Paoletti, Riccardo
Pio, Cristobal
Polo, Miguel
Prast, Julie
Saito, Takayuki
GROUND-BASED AND AIRBORNE INSTRUMENTATION FOR ASTRONOMY VIII, 2020, 11447

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