Improvements to Data Analysis Tools used in ARIS

Experimental analysis at ARIS/FRIB, including particle identification (PID), relies heavily on software tools for

data visualization and interpretation. To support these efforts, recent updates have been introduced to three key

software packages–SpecTk , SpecTcl , and LISE for Excel–enhancing functionality and overall usability.

SpecTk [1], a Tcl/Tk-based graphical interface for spectrum visualization during both online and offline analysis,

now includes features as 2D ROI fitting, automatic spectrum gating, compatibility with Xamine files, and various

quality-of-life improvements, increasing its versatility and ease of use. SpecTcl [2], the back-end engine for event

processing and spectrum generation, is being extended to integrate LISE++ functions [3] directly into the event loop.

This enables advanced physics calculations such as range-in-matter evaluations during event analysis. LISE for Excel [4]

a spreadsheet interface for performing LISE++ based calculations, allows for quick assessments of energy loss, charge

states, and other nuclear properties. It has been upgraded to support 64-bit systems, improving performance and

compatibility with modern computing environments.