12–23 Jul 2021
Online
Europe/Berlin timezone

On-Orbit Energy Calibration of the Calorimeter on the ISS-CREAM Instrument Using the Boronated Scintillator Detector

16 Jul 2021, 18:00
1h 30m
TBA

TBA

Poster CRD | Cosmic Ray Direct Discussion

Speaker

Yu Chen (Penn State University)

Description

The Cosmic Ray Energetics And Mass instrument on the International Space Station (ISS-CREAM) aims to measure the energy spectra of cosmic ray (CR) nuclei from Z=1 to Z=26 with energies from $10^{12}$ eV to $10^{15}$ eV. The calorimeter (CAL) was designed to measure the energy of the CR particles. The ISS-CREAM on-orbit data provide evidence that the CAL may have either suffered from an efficiency problem or its energy scale may be in need of calibration. As a result, a careful scrutiny of the absolute energy calibration of the CAL is needed. We propose an approach to calibrate the energy scale using the on-orbit data of the boronated scintillator detector, which is independent of CAL data and reduces potential bias. In this talk we will discuss the issues revealed by the on-orbit data, demonstrate how this can be corrected using the boronated scintillator detector and present preliminary results.

Keywords

energy calibration

Subcategory Experimental Methods & Instrumentation

Author

Yu Chen (Penn State University)

Co-authors

Jacob Smith (NASA GSFC/CRESST-UMBC) Jason Link (NASA GSFC/CRESST-UMBC) Dr John W. Mitchell (NASA GSFC) Kenichi Sakai (NASA GSFC/CRESST-UMBC) Monong Yu (Pennsylvania State University) S.A. Isaac Mognet (Penn State University) Scott Nutter (Northern Kentucky University) Prof. Stephane Coutu (Penn State University) Tyler Anderson (Penn State University) Tyler LaBree (Northern Kentucky University)

Presentation materials