From 182a0c9210019feb00ac9f347c7d18ddb9cc3394 Mon Sep 17 00:00:00 2001
From: drops <drops@noop.pl>
Date: Sun, 29 Dec 2024 16:46:21 +0100
Subject: [PATCH] Update README.md

Tube specs
---
 README.md | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/README.md b/README.md
index 8895cf8..df9f643 100644
--- a/README.md
+++ b/README.md
@@ -1,2 +1,14 @@
 # Geiger-interface
 
+### J3x5 Tube specification
+| Property                                   | J3x5                                 |
+|--------------------------------------------|--------------------------------------|
+| Radiation type                             | beta, gamma                          |
+| Dimensions (max), mm                       | d11 x 107                            |
+| Country of Origin                          | China                                |
+| Vendor’s calibration<br>radioactive source | Co-60                                |
+| Sensitivity                                | 44 CPS at 1 mR/h<br>Co-60            |
+| Dead Time                                  | TBD                                  |
+| At the background level                    | 25 pulses/minute                     |
+| Internal background <br>noise              | 0,2 pulses/s<br>12 pulses/minute     |
+| Recommended operating<br>supply voltage    | glass tube 380 V<br>metal tube 400 V |
\ No newline at end of file