High-Resolution Electronic Particle Detectors Yuichi Okugawa Tohoku - - PowerPoint PPT Presentation

▶

Mar 08, 2024 126 likes •272 views

Introduction Physical Message Gaseous Detectors High-Resolution Electronic Particle Detectors Yuichi Okugawa Tohoku University okugawa@epx.phys.tohoku.ac.jp April 25, 2018 Yuichi Okugawa Particle Detectors Introduction Physical Message

SLIDE 1

Introduction Physical Message Gaseous Detectors

High-Resolution Electronic Particle Detectors

Yuichi Okugawa

Tohoku University

kugawa@epx.phys.tohoku.ac.jp

April 25, 2018

Yuichi Okugawa Particle Detectors

SLIDE 2

Introduction Physical Message Gaseous Detectors

Outline

1

Introduction

2

Physical Message

3

Gaseous Detectors Introduction Drift and Diffusion of Charges in Gases

Yuichi Okugawa Particle Detectors

SLIDE 3

Introduction Physical Message Gaseous Detectors

Introduction

Experimental methods to detect charged particles Bubble chamber Streamer chamber Holographic method

Yuichi Okugawa Particle Detectors

SLIDE 4

Introduction Physical Message Gaseous Detectors

Introduction

Experimental methods to detect charged particles Bubble chamber Streamer chamber Holographic method

Yuichi Okugawa Particle Detectors

SLIDE 5

Introduction Physical Message Gaseous Detectors

Introduction

Experimental methods to detect charged particles Bubble chamber Streamer chamber Holographic method

Yuichi Okugawa Particle Detectors

SLIDE 6

Introduction Physical Message Gaseous Detectors

Ionization

Ionization Ionization of the atoms within the detector is used in order to detect incident charged particles. Energy loss Upon ionization, incident particle will lose its energy from it. Interaction Interactions between detector and incident particle can result transition of several eV.

Yuichi Okugawa Particle Detectors

SLIDE 7

Introduction Physical Message Gaseous Detectors

Physical Message

Yuichi Okugawa Particle Detectors

SLIDE 8

Introduction Physical Message Gaseous Detectors

Physical Message

Yuichi Okugawa Particle Detectors

SLIDE 9

Introduction Physical Message Gaseous Detectors

Physical Message

Yuichi Okugawa Particle Detectors

SLIDE 10

Introduction Physical Message Gaseous Detectors

Physical Message

Yuichi Okugawa Particle Detectors

SLIDE 11

Introduction Physical Message Gaseous Detectors Introduction Drift and Diffusion of Charges in Gases

Introduction

Gaseous Detector Detects charged particles and their tracks by marking marking ionization pathways. Pros Depending on gas you use, you can keep it reasonable. Drift chamber localization accuracy can be achieved up to ∼ 20 µm. Cons Issues regards to space consumption. Difficulty upon implementation of large multi-electrode detectors at high pressure.

Yuichi Okugawa Particle Detectors

SLIDE 12

Introduction Physical Message Gaseous Detectors Introduction Drift and Diffusion of Charges in Gases

Introduction

Yuichi Okugawa Particle Detectors

SLIDE 13

Introduction Physical Message Gaseous Detectors Introduction Drift and Diffusion of Charges in Gases

Drift and Diffusion of Charges in Gases

Consider spherically symmetric Gaussian diffusion. σx = √ 2Dt (1) Introducing characteristic energy ǫk σx = (wǫkx/eE)

1 2 = (wǫkx/EP−1) 1 2 P− 1 2

(2)

Yuichi Okugawa Particle Detectors