Nuclear and Particle Physics Colloquium 129
(核與粒子物理學術報告會129)
Place: Shahe Campus C826
Time：10:00, Oct. 30, 2023
Title: 利用PAN進行深空探測 Exploring deep space with Penetrating particle Analyzer(PAN)
Speaker: 謝鵬偉 (日内瓦大學)
Abstract:
Penetrating Particle Analyzer (PAN)是一個多功能小型的帶電粒子探測器，設計用于深空帶電粒子探測。它可以精确測量能量從30 MeV/n 到10 GeV/n的帶電粒子，和傳統深空輻射探測器相比能域範圍高了1-2個數量級，可以填補目前對于GeV星系宇宙線測量的空缺。PAN采用了磁譜儀技術，探測器運用了當下前沿的探測器技術。它由兩塊永磁體，基于SiPM讀取塑閃的TOF系統，矽像素探測器和矽微條探測器構成，總質量小于10公斤，低能耗。在過去幾年了，我們對探測器進行了大量的電子/質子/重離子等束流測試，對探測器性能進行研究和探測器進行微調。目前探測器的位置分辨率可以到達4個微米，可以區分至少Z=20（鈣）的粒子，對于1GeV電子分辨率在12%左右。該報告将詳細介紹PAN探測器的技術細節，以此展開讨論未來國内磁譜儀探測器的開發和在南極以及深空的應用前景。
The Penetrating Particle Analyzer (PAN) is a versatile instrument designed for deep space science ａｎｄ interplanetary missions. It is capable of precisely measuring ａｎｄ monitoring the flux, composition, ａｎｄ direction of highly penetrating particles ranging from 30 MeV/nucleon to 10 GeV/nucleon. PAN potentially finds applications ｉｎ cosmic ray physics ａｎｄ solar physics. The detector adopts a magnetic spectrometer technique with cutting-edge detection technologies, weighs less than 10 kg, ａｎｄ has low power consumption.
This talk elaborates on MiniPAN, the demonstrator of PAN. MiniPAN adopts two sections of permanent magnets, two Time-Of-Flight (TOF) modules read out by SiPMs to determine the incident particle direction, two Pixel detectors that can survive high rate conditions, such as those occurring during solar energetic particle events ｏｒ when traveling through the radiation belts, ａｎｄ six high-resolution silicon strip detectors for determination of particle momentum, encapsulated ｉｎ an Al frame with a total mass of less than 10 kg. Extensive beam tests ａｎｄ cosmic ray campaigns were carried out ｉｎ the past three years to demonstrate the functionality of mini-PAN detector. The best position resolution achieved so far is 4 m. Momentum resolution for 1 GeV electrons is around 12%.
About speaker:
2011年本科畢業于上海交通大學，2017年博士畢業于上海交通大學，博士期間參與四川錦屏PandaX-I/II暗物質探測實驗，獲得2018年晨光杯優秀論文獎一等獎。2018年于李政道研究所從事博士後工作，參與PandaX四噸實驗，獲評“趙忠堯博士後”。2020年加入日内瓦大學從事博士後工作，期間主要從事PAN深空帶電粒子探測器的研發項目。
