Cosmic ray flux measurements in Iligan City in 2001

Authors

Ryan B. Balili Department of Physics, Mindanao State University – Iligan Institute of Technology
Louie T. Murcia Department of Physics, Mindanao State University – Iligan Institute of Technology
Johanna Evi P. Buendia Department of Physics, Mindanao State University – Iligan Institute of Technology
Al Lester M. Cabrera Department of Physics, Mindanao State University – Iligan Institute of Technology
Benedict D. Entera Department of Physics, Mindanao State University – Iligan Institute of Technology
Jihan L. Dagondong Department of Physics, Mindanao State University – Iligan Institute of Technology
Wilson I. Barredo Department of Physics, Mindanao State University – Iligan Institute of Technology
Leo Cristobal C. Ambolode II Department of Physics, Mindanao State University – Iligan Institute of Technology
Edman H. Gallamaso Department of Physics, Mindanao State University – Iligan Institute of Technology
Elvis L. Geneston Department of Physics, Mindanao State University – Iligan Institute of Technology
John Paullette A. Monteron Department of Physics, Mindanao State University – Iligan Institute of Technology
M. L. R. Nadayag Department of Physics, Mindanao State University – Iligan Institute of Technology
Anthony Paul D. Ramirez Department of Physics, Mindanao State University – Iligan Institute of Technology
Catherine S. Taban Department of Physics, Mindanao State University – Iligan Institute of Technology
Marlyne M. Villareal Department of Physics, Mindanao State University – Iligan Institute of Technology
Rosario L. Reserva Department of Physics, Mindanao State University – Iligan Institute of Technology
Angelina M. Bacala Department of Physics, Mindanao State University – Iligan Institute of Technology

Abstract

Cosmic ray flux at sea level in Iligan City is measured anew in 2001. An assembly of two plastic scintillators, each optically coupled to a photomultiplier tube (PMT), and nuclear instrumentation modules (NIM) were utilized for cosmic ray detection. Before the experiment proper, various preparatory measurements were made to determine the optimum operating voltage, threshold voltage, and delay settings of the instruments to be used. The scintillator detectors are then vertically stacked one meter apart and its anode signals are sent to several NIM modules for processing. The coincident signals are counted for one-hour intervals for 24-hour periods in August – September 2001. No significant variation in the daytime and nighttime cosmic ray fluxes was observed. The measurements are then compared with the first reported measurements in Iligan City done by E. F. Niñofranco in 1999.

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Issue

2001: Proceedings of the 19th Samahang Pisika ng Pilipinas Philippine Physics Congress

Article ID

SPP-2001-F1A-2

Section

High Energy Physics

Published

2001-10-24

How to Cite

[1]

RB Balili, LT Murcia, JEP Buendia, ALM Cabrera, BD Entera, JL Dagondong, WI Barredo, LCC Ambolode, EH Gallamaso, EL Geneston, JPA Monteron, MLR Nadayag, APD Ramirez, CS Taban, MM Villareal, RL Reserva, and AM Bacala, Cosmic ray flux measurements in Iligan City in 2001, Proceedings of the Samahang Pisika ng Pilipinas 19, SPP-2001-F1A-2 (2001). URL: https://proceedings.spp-online.org/article/view/SPP-2001-F1A-2.