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Message ID: 2481     Entry time: Fri Dec 20 13:20:53 2019
Author: Aidan 
Type: Summary 
Category: PD QE 
Subject: QE results from A2P6 (500um) and A2P2 (1mm) 

The QE measurements from the first couple of photodiodes are attached below.

  • plot_JPL_diode_results.m - A2P6 analysis
  • plot_JPL_A2P2_diode_results.m - A2P2 analysis

QE = [I_photocurrent]/[P_PD] * h *nu/e

P_PD = Power incident on photodetector = 0.966*power_incident on cryo window

Power incident on cryo window = F(voltage on reference PD)

Attachment 1: PC_DC_v_T.pdf  53 kB  | Hide | Hide all
PC_DC_v_T.pdf
Attachment 2: A2P2_001_test.pdf  7 kB  | Hide | Hide all
A2P2_001_test.pdf
Attachment 3: PC_DC_v_T.pdf  48 kB  | Hide | Hide all
PC_DC_v_T.pdf
Attachment 4: A2P6_001_test.pdf  11 kB  | Hide | Hide all
A2P6_001_test.pdf
Attachment 5: plot_JPL_diode_results.m  2 kB  | Hide | Hide all
% load JPL data
f0 = dir('*dark*.txt');
f1 = dir('*photo*.txt');
f2 = dir('*cond*.txt');

% get temperature vs time
tempList = [];
pList = [];
for ii = 1:numel(f2)-1
... 102 more lines ...
Attachment 6: plot_JPL_A2P2_diode_results.m  2 kB  Uploaded Fri Dec 20 15:28:39 2019  | Hide | Hide all
close all 
clear all
% load JPL data
f0 = dir('*dark');
f1 = dir('*bright*');

% get temperature vs time
tempList = [];
refPDList = [];
for ii = 1:numel(f1)
... 113 more lines ...
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