This program calculates a set of accessible Q-E ranges for a powder sample using the multi-Ei method. 

• [Web tool] Accessible Q-E ranges at HRC(BL12) for powder samples

• [Source code] https://github.com/taro-nakajima/Acccessible_QE_range_HRC_powder

In neutron inelastic scattering measurements at HRC, one can simultaneously measure multiple Q-E regions with different incident energies (Ei) using so called "multi-Ei method". This program helps you to simulate accessible Q-E ranges with a chopper condition. 

• [Web tool] Accessible Q-E range in HRC(BL12)

• [Note] Web apps. for neutron chopper spectrometers in J-PARC MLF (Nakajima Lab's web site, in Japanese)

• [Source code] https://github.com/taro-nakajima/Accessible_QErange_HRC

HRC has two options for Fermi chopper;  one is for high-intensity and the other is for high-resolution measurements. Energy resolution and incident flux depend on the choice of Fermi choppers and its rotation frequency. This program allow you to compare energy resolutions and intensities of two different chopper conditions.

• [Web tool] Flux/resolution simulator of neutron chopper spectrometer HRC in J-PARC

• [Source code] https://github.com/taro-nakajima/HRC_flux-resolution_simulator

When measuring a single crystal sample at HRC, we determine orientation of the crystal using neutron Laue diffraction with a white neutron beam. This program provides a simulated Laue diffraction pattern on the detector banks of HRC. 

• [Web tool] Neutron Laue Diffraction Pattern Simulator for HRC(BL12).

• [Tutorial] Aligning a crystal at HRC spectrometer using the Neutron Laue Diffraction Pattern Simulator for HRC(BL12).

• [Source code] https://github.com/taro-nakajima/hrc_detector_map

A supplementary tool to create a png file (800x500 pixel) is available below:

• [Source code] https://github.com/taro-nakajima/HRC_Idp_plot