Simulation of the in-flight background for HXMT/HE
Simulation of the in-flight background for HXMT/HE
复制标题
HXMT/HE 飞行背景模拟
DOI：
10.1007/s10509-015-2559-1
复制
发表时间：
2015-11
影响因子：
1.9
通讯作者：
关菊
中科院分区：
文献类型：
--
作者：
谢斐;张娟;宋黎明;熊少林;关菊
硬X射线调制望远镜（HXMT）是一个宽波段的X射线天文卫星，从1到250 keV。详细了解X射线背景将有助于实现仪器的良好性能。在本工作中，我们利用质量模型技术来估计HXMT上高能望远镜（HE）的背景。算法分为3个步骤。首先，建立了完整的HXMT几何模型。在对HXMT近地轨道空间环境调查的基础上，在模拟中考虑了宇宙射线、宇宙X射线本底（CXB）、南大西洋异常（SAA）俘获粒子、反照率γ以及宇宙射线与地球大气相互作用产生的中子。最后，采用了Geant 4合作提供的屏蔽物理列表。模拟结果表明：（1）HXMT/HE在轨运行100天后，在20-250 keV的能量范围内，总的本底平均约为540 count/s;（2）宇宙线和SAA俘获粒子引起的延迟分量在HXMT/HE的整个能量范围内占主导地位;（3）一些发射谱线在本底连续谱中很突出，可用于在轨定标;（4）在50 keV和106秒的曝光量下，估算的灵敏度约为0.1 mCrab。
The Hard X-ray Modulation Telescope (HXMT) is a broad-band X-ray astronomical satellite from 1 to 250 keV. Understanding the X-ray background in detail will help to achieve a good performance of the instrument. In this work, we make use of the mass modeling technique to estimate the background of High Energy Telescope (HE) aboard HXMT. It consists of three steps. First, we built a complete geometric model of HXMT. Then based on the investigation about the space environment concerning HXMT low-earth orbit, in our simulation we considered cosmic rays, cosmic X-ray background (CXB), South Atlantic Anomaly (SAA) trapped particles, the albedo gamma, and neutrons from interaction of cosmic rays with the Earth’s atmosphere. Finally, the Shielding Physics List supplied by Geant4 collaborations was adopted. According to our simulation, (1) the total background of HXMT/HE is about 540 count/s on average over 20–250 keV energy band after 100 days in orbit; (2) the delayed component caused by cosmic rays and SAA trapped particles dominates the full energy band of HXMT/HE; (3) some emission lines are prominent in the background continuum spectrum and will be used for in-orbit calibration; (4) the estimated sensitivity is ∼0.1 mCrab at 50 keV with an exposure of 106s.
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DOI：
--
发表时间：
2003
期刊：
--
影响因子：
--
作者：
J. Salgado
通讯作者：
J. Salgado
影响因子：
8.6
作者：
A. Abdo;M. Ackermann;M. Ajello;W. Atwood;L. Baldini;J. Ballet;G. Barbiellini;D. Bastieri;B. Baughman;K. Bechtol;R. Bellazzini;B. Berenji;R. Blandford;E. Bloom;E. Bonamente;A. Borgland;J. Bregeon;A. Brez;M. Brigida;P. Bruel;T. Burnett;S. Buson;G. Caliandro;R. Cameron;P. Caraveo;J. Casandjian;E. Cavazzuti;C. Cecchi;O. Celik;E. Charles;A. Chekhtman;C. C. Cheung-C.;J. Chiang;S. Ciprini;R. Claus;J. Cohen-Tanugi;L. Cominsky;J. Conrad;S. Cutini;C. Dermer;A. De Angelis;F. de Palma;S. Digel;G. Di Bernardo;E. do Couto e Silva;P. Drell;A. Drlica-Wagner;R. Dubois;D. Dumora;C. Farnier;C. Favuzzi;S. Fegan;W. Focke;P. Fortin;M. Frailis;Y. Fukazawa;S. Funk;P. Fusco;D. Gaggero;F. Gargano;D. Gasparrini;N. Gehrels;S. Germani;B. Giebels;N. Giglietto;P. Giommi;F. Giordano;T. Glanzman;G. Godfrey;I. Grenier;M. Grondin;J. Grove;L. Guillemot;S. Guiriec;M. Gustafsson;Y. Hanabata;A. Harding;M. Hayashida;R. Hughes;R. Itoh;M. Jackson;G. Jóhannesson;A. Johnson;R. Johnson;T. Johnson;W. Johnson;T. Kamae;H. Katagiri;J. Kataoka;N. Kawai;M. Kerr;J. Knödlseder;M. Kocián;F. Kuehn;M. Kuss;J. Lande;L. Latronico;M. Lemoine-Goumard;F. Longo;F. Loparco;B. Lott;M. Lovellette;P. Lubrano;G. Madejski;A. Makeev;M. Mazziotta;W. Mcconville;J. Mcenery;C. Meurer;P. Michelson;W. Mitthumsiri;T. Mizuno;A. Moiseev;C. Monte;M. Monzani;A. Morselli;I. Moskalenko;S. Murgia;P. Nolan;J. Norris;E. Nuss;T. Ohsugi;N. Omodei;E. Orlando;J. Ormes;D. Paneque;J. Panetta;D. Parent;V. Pelassa;M. Pepe;M. Pesce-Rollins;F. Piron;T. Porter;S. Rainò;R. Rando;M. Razzano;A. Reimer;O. Reimer;T. Reposeur;S. Ritz;L. Rochester;A. Rodríguez;M. Roth;F. Ryde;H. Sadrozinski;D. Sanchez;A. Sander;P. S. Saz Parkinson;J. Scargle;A. Sellerholm;C. Sgro’;M. Shaw;E. Siskind;D. Smith;P. Smith;G. Spandre;P. Spinelli;J. Starck;M. Strickman;A. Strong;D. Suson;H. Tajima;H. Takahashi;T. Takahashi;T. Tanaka;J. Thayer;J. Thayer;D. Thompson;L. Tibaldo;D. Torres;G. Tosti;A. Tramacere;Y. Uchiyama;T. Usher;V. Vasileiou;N. Vilchez;V. Vitale;A. Waite;P. Wang;B. Winer;K. Wood;T. Ylinen;M. Ziegler
通讯作者：
A. Abdo;M. Ackermann;M. Ajello;W. Atwood;L. Baldini;J. Ballet;G. Barbiellini;D. Bastieri;B. Baughman;K. Bechtol;R. Bellazzini;B. Berenji;R. Blandford;E. Bloom;E. Bonamente;A. Borgland;J. Bregeon;A. Brez;M. Brigida;P. Bruel;T. Burnett;S. Buson;G. Caliandro;R. Cameron;P. Caraveo;J. Casandjian;E. Cavazzuti;C. Cecchi;O. Celik;E. Charles;A. Chekhtman;C. C. Cheung-C.;J. Chiang;S. Ciprini;R. Claus;J. Cohen-Tanugi;L. Cominsky;J. Conrad;S. Cutini;C. Dermer;A. De Angelis;F. de Palma;S. Digel;G. Di Bernardo;E. do Couto e Silva;P. Drell;A. Drlica-Wagner;R. Dubois;D. Dumora;C. Farnier;C. Favuzzi;S. Fegan;W. Focke;P. Fortin;M. Frailis;Y. Fukazawa;S. Funk;P. Fusco;D. Gaggero;F. Gargano;D. Gasparrini;N. Gehrels;S. Germani;B. Giebels;N. Giglietto;P. Giommi;F. Giordano;T. Glanzman;G. Godfrey;I. Grenier;M. Grondin;J. Grove;L. Guillemot;S. Guiriec;M. Gustafsson;Y. Hanabata;A. Harding;M. Hayashida;R. Hughes;R. Itoh;M. Jackson;G. Jóhannesson;A. Johnson;R. Johnson;T. Johnson;W. Johnson;T. Kamae;H. Katagiri;J. Kataoka;N. Kawai;M. Kerr;J. Knödlseder;M. Kocián;F. Kuehn;M. Kuss;J. Lande;L. Latronico;M. Lemoine-Goumard;F. Longo;F. Loparco;B. Lott;M. Lovellette;P. Lubrano;G. Madejski;A. Makeev;M. Mazziotta;W. Mcconville;J. Mcenery;C. Meurer;P. Michelson;W. Mitthumsiri;T. Mizuno;A. Moiseev;C. Monte;M. Monzani;A. Morselli;I. Moskalenko;S. Murgia;P. Nolan;J. Norris;E. Nuss;T. Ohsugi;N. Omodei;E. Orlando;J. Ormes;D. Paneque;J. Panetta;D. Parent;V. Pelassa;M. Pepe;M. Pesce-Rollins;F. Piron;T. Porter;S. Rainò;R. Rando;M. Razzano;A. Reimer;O. Reimer;T. Reposeur;S. Ritz;L. Rochester;A. Rodríguez;M. Roth;F. Ryde;H. Sadrozinski;D. Sanchez;A. Sander;P. S. Saz Parkinson;J. Scargle;A. Sellerholm;C. Sgro’;M. Shaw;E. Siskind;D. Smith;P. Smith;G. Spandre;P. Spinelli;J. Starck;M. Strickman;A. Strong;D. Suson;H. Tajima;H. Takahashi;T. Takahashi;T. Tanaka;J. Thayer;J. Thayer;D. Thompson;L. Tibaldo;D. Torres;G. Tosti;A. Tramacere;Y. Uchiyama;T. Usher;V. Vasileiou;N. Vilchez;V. Vitale;A. Waite;P. Wang;B. Winer;K. Wood;T. Ylinen;M. Ziegler
影响因子：
10.3
作者：
A. Dean;A. Bird;N. Diallo;C. Ferguson;J. Lockley;S. Shaw;M. J. Westmore;D. Willis
通讯作者：
A. Dean;A. Bird;N. Diallo;C. Ferguson;J. Lockley;S. Shaw;M. J. Westmore;D. Willis
影响因子：
6.5
作者：
A. Dean;L. Fan;K. Byard;A. Goldwurm;C. Hall;J. J. Harding-J.
通讯作者：
A. Dean;L. Fan;K. Byard;A. Goldwurm;C. Hall;J. J. Harding-J.
DOI：
10.1016/s0168-583x(99)00556-x
发表时间：
2000
影响因子：
1.3
作者：
E. Porras;F. Sánchez;V. Reglero;B. Cordier;A. Dean;F. Lei;J. M. Pérez;B. Swinyard
通讯作者：
E. Porras;F. Sánchez;V. Reglero;B. Cordier;A. Dean;F. Lei;J. M. Pérez;B. Swinyard