Research

Ph.D. Research (2015-2020 (Ongoing) )

Accelerator Science

The aim of my research is to develop novel spiral injection scheme for the J-PARC muon g-2/EDM experiment. This novel spiral injection scheme will offer unprecedented injection and storage efficiency for compact and super precise storage magnets.

J-PARC Muon g-2/EDM Experiment

Master Report (2015 -2016)

I presented my intermediate progress as a master report. Master report can be found at the following link.

Master Report

Conference Proceeding

I presented some of our research work at the following conferences

The 3rd J-PARC Symposium (J-PARC2019) Tsukuba, Japan. Poster Presentation. ‘Demonstration of Novel Spiral Injection Scheme’

Particle Accelerator Society of Japan (日本加速器学会)

PASJ16 Proceedings, Poster Presentation

M.A. Rehman, H. Iinuma, S. Ohsawa, H. Nakayama and H. Hisamatsu “Test Experiment of 3-D Spiral Injection Scheme Using Electron Beam for New g-2/EDM Experiment at J-PARC” in Proceedings of the 13th Annual Meeting of Particle Accelerator Society of Japan, 2016. TUP056

2. PASJ17 Proceedings, Oral Presentation

M.A. Rehman, H. Iinuma, S. Ohsawa, H. Nakayama, H. Hisamatsu, K. Furukawa, T. Mibe “Development of Three-Dimensional Spiral Injection by Using Electron Beam for Muon g-2/EDM Experiment at J-PARC” in the Proceedings of the 14th Annual Meeting of Particle Accelerator Society of Japan, 2017. WEOM01

3. PASJ18 (1) Proceedings, Poster Presentation

M.A. Rehman, H. Iinuma, S. Ohsawa, H. Nakayama, H. Hisamatsu, K. Furukawa, T. Mibe “DEVELOPMENT OF THE PULSED MAGNETIC KICKER FOR THE SPIRAL INJECTION TEST EXPERIMENT” in the Proceedings of the 15th Annual Meeting of Particle Accelerator Society of Japan, 2018.

4. PASJ18 (2) Proceedings, Contribution

H. Iinuma et al., "DEVELOPMENT OF THREE-DIMENSIONAL SPIRAL BEAM INJECTION SCHEME WITH X-Y COUPLING BEAM FOR MRI SIZED COMPACT STORAGE RING" in the Proceedings of the 15th Annual Meeting of Particle Accelerator Society of Japan, 2018

International Particle Accelerator Conference (IPAC)

IPAC19 MAY19-24

M.A.Rehman et al."Beam Control and Monitors for the Spiral Injection Test Experiment"(Reviewed Proceedings) POSTER
H.Iinuma et al. "Beam Transport Design for a Strongly X-Y Coupled Muon Beam for the J-PARC g-2/edm Experiment" Contribution"

IPAC18 Proceedings, Contribution

H. Iinuma et al., “Three-dimensional spiral beam injection for a compact storage ring” in the Proceedings of the 9th International Particle Accelerator Conference (IPAC'18), 2018

29th Linear Accelerator Conference, LINAC 18

LINAC18 Proceedings, Poster Presentation

M.A. Rehman, H. Iinuma, S. Ohsawa, H. Nakayama, H. Hisamatsu, K. Furukawa, T. Mibe “PROGRESS OF THE NOVEL SPIRAL INJECTION TEST EXPERIMENT ” POSTER

International Symposium Quantum Beam Science in Biology and Soft Materials

iQBS16
M.A. Rehman, H. Iinuma, S. Ohsawa, H. Nakayama, H. Hisamatsu, K. Furukawa, T. Mibe"Three-dimensional Spiral Injection Scheme Test Experiment" iQBS18 (Reviewed Proceedings)

Seminar at CERN BE Department

Journal Publications

"A New Approach for Measuring the Muon Anomalous Magnetic Moment and Electric Dipole Moment"

(Prog. Theor. Exp. Phys. 2015 ,PTEP DOI: 10.1093/ptep/0000000000)

2. "Confined focused sheet beam flow of a thermionic linear electron source" (https://doi.org/10.1088/1748-0221/14/01/P01001 , Journal of Instrumentation)

3. G. Islam, A. Rehman, M. Iqbal and Z. Zhou, Simulation and Test of a Pont Focused Electron Beam Emitter, Instruments and Experimental Techniques, Vol. 60, No. 1, (2017), 87–90. IF [0.353]

Internship at CERN

Motion of Neutral Molecules in the Electromagnetic Field of the Beam

The motivation for this study comes from a recent undetected vacuum in leak (16L2) which occurred at the only location at last cool down of LHC. In 2017 most of the beam dumps occurred due to losses at this point in LHC. Here air particles were frozen on the chamber surface. These particles may be detached by the beam field. They could then fall or drift into the beam where they interact with the protons. The cold gas consisting of oxygen or nitrogen is either para-magnetic or diamagnetic. The task of this study is to simulate the motion of neutral molecules under the influence of the electromagnetic field of the beam. This vacuum in-leak also limits the beam lifetime.

LINK TO REPORT

M.Phil Research at CHEP PU.

Simulation and Modeling of SLAC S-band 5045 Klystron’s DC Electron Gun

I have modeled and simulated the SLAC 5045 S-band Klystron DC electron gun by using two Codes, namely; EGUN (SLAC Electron Trajectory program) and CST (Computer Simulation Technology)-PS (Particle Studio), and then compare the results with the experimental test values. To compare experimental results with simulation in CST-PS, I have used the same temperature (1100 K) and work function (1.98 eV) for scandate cathode of the gun as it was used in real experiment. A simple code in C++ was made to overcome the problem of making separate several Polygon files (input file to EGUN), for geometrical and electrical parameterization using file handling technique. The simulated results of beam current (and hence the perveance), from both Codes confirm each other and also are in good agreement with the experimental value of 414A beam current. I have also performed the spatial and potential analysis of the gun in both Codes and studied the effect of these parameters on beam’s current, perveance, current density and emittance.

LINK to Thesis

Miscellaneous works during M.PHIL

International Conference on Accelerator Physics: 39th International Nathiagali Summer College 2014, August. Poster Presentation on “Beam Analysis of Thermionic Point Source Electron Gun”
International Conference on Accelerator Physics: 40th International Nathiagali Summer College 2015, August. Poster Presentation on “Simulation of sheet beam electron gun”

Undergraduate Final Semester Project

Meson Decay Amplitude in ³P₀ Model using Realistic Wave function

In this project we have used interpolated function (numerical solution of Radial Schrödinger’s equation) to find the Radial realistic wave function R(r) and after it we have generated 3D realistic wave function for charmonium. After generating wave function, we have checked the orthogonality of wave function. Finally we have used this wave function to calculate the meson decay amplitude in ³P₀ Model.