From 95dc7ee04aa6803d36e5b5a43bd854cd75d7c1ee Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Alejandro=20S=C3=A1nchez=20Castillo?=
 <121103809+asanchezcastillo@users.noreply.github.com>
Date: Wed, 12 Nov 2025 11:51:17 +0100
Subject: [PATCH] Add non-linearity parameters for PMT simulation

Added parameters for PMT non-linearity simulation and on/off PMTs.
---
 sbnd_calibration_database.md | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/sbnd_calibration_database.md b/sbnd_calibration_database.md
index 47816b02a..97f761873 100644
--- a/sbnd_calibration_database.md
+++ b/sbnd_calibration_database.md
@@ -133,12 +133,15 @@ This section displays a list of the variables in the database, as well as their
 | caen_digitizer | integer | CAEN digitizer to which the PMT is connected | N/A | 
 | caen_digitizer_channel | integer | CAEN digitizer channel to which the PMT is connected | N/A |
 | total_transit_time | real | Total transit time | ns |
+| on_pmt | bool | Whether the channel is powered on | N/A |
 | reconstruct_channel | bool | Whether the channel is used for reconstruction | N/A |
 | cosmic_timing_correction | real | Timing correction derived from cosmic muon calibration | ns |
 | spe_amp | real | Mean amplitude of SPE | ADC |
 | spe_amp_std | real | Std of the SPE amplitude | ADC |
 | gauss_w_wc_power | real | Power parameter for Gauss noise filter | N/A | 
 | gauss_wc | real | WC parameter for Gauss noise filter | GHz |
+| nonlinearity_pesat | real | Parameter PESat for PMT non linearity simulation | N/A |
+| nonlinearity_alpha | real | Parameter alpha for PMT non linearity simulation | N/A |
 | ser_vec_0 → ser_vec_550 | real | ADC count per bin (550 in total) for the Single Electron Response (SER) pulse (More info: [DocDB 38059](https://sbn-docdb.fnal.gov/cgi-bin/sso/ShowDocument?docid=38059)) | ADC |